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19-2035; Rev 1; 11/02 150mA USB LDO Regulators with 15kV TVS and P Reset General Description The MAX5005/MAX5006/MAX5007 are low-dropout (LDO), micropower linear voltage regulators with an integrated microprocessor (P) reset circuit for use with USB peripheral devices. Each device is available with a fixed +3.3V output voltage and can deliver up to 150mA load current. Each device features 15kV transient voltage suppression (TVS) as well as precision 1.5k data-line termination resistors for USB digital signals making them ideal for use with USB peripherals. The MAX5005/MAX5006/MAX5007 include an internal reset circuit that enables the USB microcontroller 100ms after the LDO regulator output voltage reaches regulation. Reset outputs are available in push-pull (active-low or active-high) and open-drain (active-low) options. The MAX5005/MAX5006/MAX5007 are optimized for use with a 1F ceramic output capacitor. Each device includes thermal shutdown protection, output short-circuit protection, and output to input reverse leakage protection. These devices also include an active-low manual reset input. The MAX5005 features an open-drain reset output, the MAX5006 features an active-low push-pull reset output, and the MAX5007 features an active-high push-pull reset output. Each device is available in a space-saving 10-pin MAX package. Features Integrated 15kV Transient Voltage Suppressors for D+ and D- Data Lines Pin Selectable Internal D+ and D- Termination Resistors (1.5k 5%) Integrated Microprocessor Reset Circuit with 100ms (min) Timeout 3.3V Output with 3% Accuracy 25A Quiescent Current at Full Load Small 1F Output Capacitor Output to Input Reverse Leakage Protection Thermal and Short-Circuit Protection 10-Pin MAX Package MAX5005/MAX5006/MAX5007 Ordering Information PART MAX5005_CUB* MAX5006_CUB* MAX5007_CUB* TEMP RANGE 0C to +70C 0C to +70C 0C to +70C PINPACKAGE 10 MAX 10 MAX 10 MAX RESET OUTPUT OpenDrain Low Push-Pull Low Push-Pull High Applications USB Peripherals Hand-Held Instruments *Insert "A" for a 7.5% reset threshold and "B" for a 12.5% reset threshold. Typical Operating Circuit USB PORT VBUS CIN 3.3V USB CONTROLLER SELR ENR 5V IN 3.3V OUT 1F COUT CERAMIC 1F MAX5005 MAX5006 MAX5007 D+ RESET (RESET) DMR GND GND VCC Pin Configuration TOP VIEW IN 1 10 OUT 9 GND MR RESET/(RESET) ENR D+ DGND RST D+ D- D+ GND DSELR 2 3 4 5 MAX5005 MAX5006 MAX5007 8 7 6 27 27 ( ) FOR MAX5007 ONLY MAX () FOR MAX5007 ONLY. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 150mA USB LDO Regulators with 15kV TVS and P Reset MAX5005/MAX5006/MAX5007 ABSOLUTE MAXIMUM RATINGS IN to GND .................................................................-0.3V to +6V D+, D- to GND..........................................................-0.3V to +6V MR to GND ..............................................-0.3V to (VOUT + 0.3V) RESET, RESET to GND, Push-Pull............-0.3V to (VOUT + 0.3V) RESET to GND, Open-Drain.....................................-0.3V to +6V OUT, SELR, ENR to GND .........................................-0.3V to +6V Maximum Current to Any Pin (except IN, OUT, D+, D-)............................................. 20mA Short-Circuit Duration ....................................................Indefinite Continuous Power Dissipation (TA = +70C) 10-Pin MAX (derate 5.6mW/C above +70C) ...........444mW Thermal Resistance (JA)...............................................180C/W Operating Temperature Range...............................0C to +70C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VIN = +5V, IOUT = 0, COUT = 2.2F, TA = 0C to +70C, unless otherwise noted. Typical specifications are at TA = +25C.) (Note 1) PARAMETER Input Voltage Range Supply Current REGULATOR Guaranteed Output Current Output Voltage Dropout Voltage (Note 2) Output Current Limit Input Reverse Leakage Current Startup Response Time Thermal Shutdown Temperature Thermal Shutdown Hysteresis RESET CIRCUIT Reset Threshold (Note 3) Reset Timeout Period VOUT to Reset Delay VTH tRP tRD VIL MR Input Voltage VIH MR Minimum Input Pulse Width MR Glitch Rejection MR to Reset Delay MR Pullup Resistance to OUT VIL SELR Input Voltage VIH Connects RTERM to D+ 0.8 x VOUT Connects RTERM to D10 0.8 x VOUT 1 120 500 25 45 0.2 x VOUT MAX500_ACUB MAX500_BCUB 2.92 2.75 100 3.05 2.89 200 75 0.2 x VOUT 3.18 3.01 300 V ms s TJSHDN TJSHDN IOUT VOUT VDO VIN = 4.0V to 5.5V, IOUT = 0 to 100mA ILOAD = 10mA ILOAD = 150mA VIN = 5.5V VIN = 0, VOUT = 5.5V Rising edge of VIN to VOUT RL = 500 165 150 3.2 3.3 20 300 350 1 500 160 20 3.4 30 400 mA V mV mA A s o o SYMBOL VIN IGND ILOAD = 100mA CONDITIONS Measured at GND MIN 4.0 TYP 25 MAX 5.5 50 UNITS V A C C V s ns ns k V 2 _______________________________________________________________________________________ 150mA USB LDO Regulators with 15kV TVS and P Reset ELECTRICAL CHARACTERISTICS (continued) (VIN = +5V, IOUT = 0, COUT = 2.2F, TA = 0C to +70C, unless otherwise noted. Typical specifications are at TA = +25C.) (Note 1) PARAMETER SELR Input Current VIL ENR Input Voltage VIH ENR Input Current Open-Drain RESET Output Low Voltage (MAX5005) Open-Drain Reset Output Leakage Current (MAX5005) VOL ILKG RTERM disabled ENR = GND or OUT VOUT > 1.0V, ISINK = 50A, reset asserted VOUT > 2.7V, ISINK = 3.2mA, reset asserted Reset not asserted VOUT = 1.0V, ISINK = 50A, reset asserted Push-Pull RESET Output Voltage (MAX5006) VOL VOUT > VTH(MIN), ISINK = 3.2mA, reset asserted VOUT > VTH(MAX), ISOURCE = 500A, reset not asserted VOUT > VTH(MAX), ISINK = 3.2mA, reset not asserted VOUT = 1.0V, ISOURCE = 150A, reset asserted ENR = GND, SELR = GND or OUT VENR = VOUT = 3.3V 1MHz, 100mVp-p signal applied at D+ and D-, VOUT = 3.3V 1MHz, 100mVp-p signal applied at D+ and D-, VOUT = 3.3V ENR = OUT Unpowered ENR = OUT Unpowered 3.6 3.6 0.8 x VOUT 1425 -1 5.5 pF 24 40 pF 47 5 16 16 6 16 8 15 kV V V V A 1500 1575 1 A 0.8 x VOUT 0.4 V VOH -1.0 0.8 x VOUT -1 1 0.3 0.4 1.0 0.3 0.4 V A V A SYMBOL CONDITIONS SELR = GND or OUT RTERM enabled MIN -1 TYP MAX 1 0.2 x VOUT UNITS A MAX5005/MAX5006/MAX5007 V VOH VOL Push-Pull RESET Output Voltage (MAX5007) USB OPTIONS AND TRANSIENT SUPPRESSION D+/D- RTERM Impedance D+/D- Input Leakage Current D+ to D- Capacitance D+, D- Capacitance to GND ESD Trigger Voltage Surge Trigger Voltage Clamping Voltage Surge Current dV/dt < 1V/ns, VD+ or VD- > 3.6V dV/dt < 2V/s, VD+ or VD- > 3.6V 6A, pulse width = 200ns to 40s 16V, pulse width = 200ns to 40s Human Body Model MIL-STD-883 Contact Discharge IEC1000-4-2 (EN61000-4-2) Air Discharge IEC1000-4-2 (EN61000-4-2) D+/D- to GND ESD Note 1: All devices are 100% tested at TA = +25C. Limits over temperature are guaranteed by characterization and not production tested. Note 2: Dropout voltage is defined as VIN - VOUT when VOUT is 2% below the value of VOUT for VIN = VOUT + 1V. Note 3: Specification is guaranteed to 4 limit. _______________________________________________________________________________________ 3 150mA USB LDO Regulators with 15kV TVS and P Reset MAX5005/MAX5006/MAX5007 Typical Operating Characteristics (VIN = +5V, IOUT = 0, COUT = 2.2F, unless otherwise noted.) GROUND-PIN CURRENT vs. SUPPLY VOLTAGE 26.5 GROUND-PIN CURRENT (A) 26.0 25.5 25.0 24.5 24.0 23.5 23.0 22.5 22.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) IOUT = 0 0 1 10 100 RESET THRESHOLD OVERDRIVE, VTH - VOUT (mV) IOUT = 150mA MAX5005-7 toc01 MAXIMUM PULSE DURATION vs. RESET THRESHOLD OVERDRIVE MAX5005-7 toc02 DROPOUT VOLTAGE vs. LOAD CURRENT 300 275 250 225 200 175 150 125 100 75 50 25 0 0 LOAD CURRENT (mA) MAX5005-7 toc03 27.0 250 150 RESET OCCURS ABOVE THIS LINE 100 50 DROPOUT VOLTAGE (mV) 200 PULSE DURATION (s) 15 30 45 60 75 90 105 120 135 150 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY MAX5005-07 toc04 OUTPUT VOLTAGE vs. SUPPLY VOLTAGE 3.34 3.33 OUTPUT VOLTAGE (V) 3.32 3.31 3.30 3.29 3.28 3.27 IOUT = 150mA IOUT = 0 MAX5005-7 toc05 0 -5 -10 -15 PSRR (dB) -20 -25 -30 -35 -40 -45 -50 -55 -60 0.01 0.1 COUT = 1F 1 FREQUENCY (kHz) 3.35 3.26 3.25 10 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) REGION OF STABLE COUT ESR vs. LOAD CURRENT MAX5005-7 toc06 OUTPUT NOISE MAX5005-7 toc07 150 125 COUT ESR () 100 75 50 25 STABLE REGION BELOW THE CURVE 0 0 COUT = 1F COUT = 4.7F VOUT 1mV/div 15 30 45 60 75 90 105 120 135 150 LOAD CURRENT (mA) 200s/div 4 _______________________________________________________________________________________ 150mA USB LDO Regulators with 15kV TVS and P Reset Typical Operating Characteristics (continued) (VIN = +5V, IOUT = 0, COUT = 2.2F, unless otherwise noted.) TURN-ON/TURN-OFF RESPONSE MAX5005-7 toc08 MAX5005/MAX5006/MAX5007 STARTUP RESPONSE MAX5005-7 toc09 LOAD-TRANSIENT RESPONSE MAX5005-7 toc10a VIN 5V/div VIN 5V/div 20mA ILOAD 0V VOUT 50mV/div 3.3V COUT = 2.2F VOUT 5V/div RESET 5V/div RL = 1k 50ms/div 1ms/div VOUT 1V/div VOUT 50mV/div 3.3V RL = 1k 1.0ms/div COUT = 1.0F LOAD-TRANSIENT RESPONSE MAX5005-7 toc10b LINE-TRANSIENT RESPONSE MAX5005-7 toc11a ILOAD 20mA 0V VOUT 50mV/div 3.3V VOUT 50mV/div 3.3V COUT = 4.7F COUT = 10F 5.25V VIN 200mV/div 4.75V VOUT 50mV/div 3.3V IOUT = 10mA COUT = IF 100s/div 1.0ms/div LINE-TRANSIENT RESPONSE MAX5005-7 toc11b TVS PEAK POWER vs. PULSE WIDTH 1000 MAX5005-7 toc12 5.25V VIN 200mV/div 4.75V 3.3V VOUT 50mV/div IOUT = 10mA COUT = 1F PEAK POWER (W) 100 10 1 100s/div 0.01 D+ OR D- WITH RESPECT TO GROUND 0.1 1 PULSE WIDTH (s) 10 100 _______________________________________________________________________________________ 5 150mA USB LDO Regulators with 15kV TVS and P Reset MAX5005/MAX5006/MAX5007 Pin Description PIN 1 2 3, 9 4 NAME IN D+ GND DDESCRIPTION Regulator Input. Supply voltage ranges from +4.0V to +5.5V. Bypass with a 1F ceramic capacitor to ground. D+ ESD/Transient Suppression Input. Connect directly to USB port D+ data input. SELR high and ENR low connects D+ to OUT through a 1.5k resistor. Ground. This pin also functions as a heatsink. Solder to large pads or the circuit board ground plane to maximize thermal dissipation. D- ESD/Transient Suppression Input. Connect directly to USB port D- data input. SELR low and ENR low connects D- to OUT through a 1.5k resistor. USB Full-Speed/Low-Speed Termination Resistor Select. Logic high connects the termination resistor to D+ for full-speed peripherals. Logic low connects the termination resistor to D- for lowspeed peripherals. An internal 1.5k resistor connects to OUT when ENR is low. USB Termination Resistor Enable. When reset is not asserted, ENR low enables the termination resistor connection. ENR high or a reset disables the termination resistor connection. Active-Low Reset Output. RESET remains low while VOUT is below the reset threshold or while MR is held low. RESET remains low for the duration of the reset timeout period after the reset conditions are terminated. (MAX5005/MAX5006 ONLY) Active-High Reset Output. RESET remains high while VOUT is below the reset threshold or while MR is held low. RESET remains high for the duration of the reset timeout period after the reset conditions are terminated. (MAX5007 ONLY) Active-Low Manual Reset Input. A logic low forces a reset. Reset remains asserted for the duration of the reset timeout period after MR transitions from low to high. Leave unconnected or connect to OUT if not used. MR has an internal pullup resistor of 25k to OUT. Voltage Regulator Output. Fixed +3.3V. Sources up to 150mA. Bypass with a 1F (min) capacitor for full rated performance. 5 SELR 6 ENR RESET 7 RESET 8 MR 10 OUT 6 _______________________________________________________________________________________ 150mA USB LDO Regulators with 15kV TVS and P Reset MAX5005/MAX5006/MAX5007 THERMAL PROTECTION OUT 3.3V CURRENT LIMIT PROTECTION ESD/ SURGE PROTECTION IN 4.0V to 5.5V REVERSE CURRENT PROTECTION MAX5005 MAX5006 MAX5007 LDO ERROR AMP VREF 1.23V RESET COMPARATOR GND USB TERMINATION DRIVER 200ms RESET TIMEOUT RESET/(RESET) 25k LOW SPEED OUT 1.5k TVS DMR FULL SPEED OUT 1.5k TVS D+ SELR ENR GND ( ) FOR MAX5007 ONLY. Figure 1. Functional Diagram Detailed Description The MAX5005/MAX5006/MAX5007 are USB application-specific, low-dropout, low-quiescent current linear regulators with an integrated P reset circuit (see Figure 1). The devices drive loads up to 150mA and are available with a fixed output voltage of +3.3V. Features include 1.5k D+ and D- termination resistors and 15kV transient voltage suppression (TVS) in accordance with IEC1000-4-2 (EN61000-4-2) Air Discharge Method and MILSTD883C- Method 3015-6 making the MAX5005/MAX5006/MAX5007 ideal for use with USB peripheral devices. The internal reset circuit monitors the regulator output voltage and asserts a reset signal when the output is typically -7.5% out of regulation for MAX500_ACUB and -12.5% out of regulation for MAX500_BCUB. Reset Circuit The reset supervisor circuit is fully integrated in the MAX5005/MAX5006/MAX5007, and uses the same reference voltage as the regulator. Two supply tolerance reset thresholds, typically -7.5% and -12.5%, are available for each type of device. 7.5% reset: Reset does not assert until the regulator output voltage is at least -3.6% out of tolerance and always asserts before the regulator output voltage is -11.5% out of tolerance. 12.5% reset: Reset does not assert until the regulator output voltage is at least -8.8% out of tolerance and always asserts before the regulator output voltage is -16.7% out of tolerance. Reset Output The MAX5005/MAX5006/MAX5007 P supervisory circuits assert a reset during power-up, power-down, and 7 _______________________________________________________________________________________ 150mA USB LDO Regulators with 15kV TVS and P Reset MAX5005/MAX5006/MAX5007 brownout conditions. Reset is guaranteed to be logic high or low depending on the device chosen (see Ordering Information). RESET or RESET asserts when VOUT is below the reset threshold and remains asserted for at least 100ms minimum after VOUT rises above the reset threshold. RESET or RESET also asserts when MR is pulled low. can be powered from an auxiliary supply such as a backup battery without any need for additional blocking diodes. Current Limit The MAX5005/MAX5006/MAX5007 include a current limiter that monitors and controls the pass transistor's gate voltage, limiting the output current to 350mA (typ). For design purposes, consider the current limit to be 160mA (min) to 600mA (max). The output can be shorted to ground for an indefinite period without damaging the part. SELR and ENR When reset is not asserted a logic high to SELR connects a 1.5k termination resistor from D+ to OUT for full speed USB peripherals and a logic low connects a 1.5k termination resistor from D- to OUT for low-speed peripherals. Logic low on ENR enables the selected termination resistor connection and logic high disables the selected termination resistor connection. An asserted reset always disconnects the termination resistors. Thermal Protection When the junction temperature exceeds TJ = +160C, an internal thermal sensor signals the shutdown logic, turning off the pass transistor and allowing the IC to cool. The thermal sensor turns the pass transistor on again after the IC's junction temperature decreases by 20C, resulting in a pulsed output during continuous thermal overload conditions. Thermal overload protection is designed to protect the MAX5005/MAX5006/ MAX5007 in the event of fault conditions. For continuous operation, do not exceed the absolute maximum junction temperature rating of TJ = +150C. D+ and DD+ and D- include transient voltage suppressors rated at 15kV (see USB 15kV Transient Voltage Suppression section). The proprietary TVS shunt circuit passes no data through the MAX5005/MAX5006/MAX5007, thereby eliminating delays associated with series protection circuits. D+ and D- have only 1A of leakage current and a typical input capacitance of 40pF at 1MHz. Operating Region and Power Dissipation The MAX5005/MAX5006/MAX5007's maximum power dissipation depends on the thermal resistance of the case and circuit board, the temperature difference between the die junction and the ambient air, and the rate of airflow. The power dissipation across the device is P = IOUT (VIN - VOUT). The maximum power dissipation is: PMAX = (TJ - TA) / (JA) where TJ - TA is the temperature difference between the die junction and the surrounding air, JA is the thermal resistance of the package from junction to ambient. The MAX5005/MAX5006/MAX5007's ground pin (GND) performs the dual function of providing an electrical connection to the system ground and channeling heat away. Connect GND to the system ground using a large pad or ground plane. For optimum performance, minimize trace inductance to D+, D-, and GND. Manual Reset Input Many P-based products require manual reset capability, allowing the operator, a test technician, or external logic circuitry to initiate a reset. A logic low on MR asserts a reset while the regulator output voltage is still within tolerance. Reset remains asserted while MR is low and for the reset timeout period (100ms minimum) after MR returns high. The MR input has an internal pullup of 25k (typ) to OUT. Drive this input with TTL/CMOS logic levels or with open-drain/collector outputs. Connect a normally open momentary switch from MR to GND to create a manual reset function; external debounce circuitry is not required. If MR is driven from long cables or the device is used in a noisy environment, connect a 0.1F capacitor from MR to GND to provide additional noise immunity. For proper operation, ensure that the voltage on MR is not greater than a diode drop above VOUT. Applications Information Capacitor Selection and Regulator Stability For stable operation over the full temperature range and with load currents up to 150mA, use a 1F (min) output capacitor. To reduce noise and improve load transient response, stability, and power-supply rejection, use large output capacitor values such as 10F. Output to Input Reverse Leakage Protection An internal circuit monitors the input and output voltages. When the output voltage is greater than the input voltage, the internal pass transistor and parasitic diodes turn off, and OUT powers the device. There is no leakage path from OUT to IN. Therefore, the output 8 _______________________________________________________________________________________ 150mA USB LDO Regulators with 15kV TVS and P Reset Note that some ceramic dielectrics exhibit large capacitance and ESR variation with temperature. With dielectrics such as Z5U and Y5V, it may be necessary to use 2.2F or more to ensure stability at temperatures below -10C. With X7R or X5R dielectrics, 1F should be sufficient at all operating temperatures. Also, for high-ESR tantalum capacitors, 2.2F or more may be needed to maintain stability. A graph of the Region of Stable C OUT ESR vs. Load Current is shown in the Typical Operating Characteristics. To improve power-supply rejection and transient response use a 1F capacitor between IN and GND. TVS Surge Test Information Figure 2 shows the test circuit used to generate the 8/40s short circuit waveform of Figure 3. Figures 4, 5, and 6 show the actual surge current I/V characteristics with various capacitive loads. MAX5005/MAX5006/MAX5007 ESD Performance The MAX5005/MAX5006/MAX5007 are characterized to the following limits on D+, D-, and IN: * 15kV using the Human Body Model * 8kV using the Contact Discharge Method specified in IEC 1000-4-2 (EN61000-4-2) * 15kV using the Air-Gap Discharge Method specified in IEC 1000-4-2 (EN61000-4-2). Note that in order to achieve the above ESD levels on IN, a ceramic 1F ceramic capacitor should be connected from IN to GND. Negative-Going VOUT Transients These devices are relatively immune to short-duration, negative-going VOUT transients. The Typical Operating Characteristics section shows a graph of the Maximum Pulse Duration vs. Reset Threshold Overdrive for which reset is not asserted. The graph was produced using negative going output transients starting at VOUT and ending below the reset threshold by the magnitude indicated (Reset Threshold Overdrive). The graph shows the maximum pulse width that a negative going VOUT transient can typically have without triggering a reset pulse. As the amplitude of the transient increases (i.e., goes further below the reset threshold), the maximum allowable pulse width decreases. Typically, a VOUT transient that goes only 10mV below the reset threshold and lasts for 75s will not trigger a reset pulse. ESD Test Conditions ESD performance depends on several conditions. Contact Maxim for a reliability report that documents test setup, methodology, and results. Human Body Model Figure 7 shows the Human Body Model, and Figure 8 shows the current waveform it generates when discharged into low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the test device through a 1.5k resistor. USB 15kV Transient Voltage Suppression The universal serial bus (USB) simplifies interconnectivity between peripheral devices and personal computers. USBs offer high-speed data communication rates (up to 12Mbps) using only two lines (D+ and D-). CMOS based USB peripherals that utilize deep submicron technologies are more susceptible to electrostatic discharge (ESD) failure due to shorter channel lengths, shallower drain/source junctions, and lightly doped drain structures. The MAX5005/MAX5006/MAX5007 incorporate a proprietary transient voltage suppression (TVS) circuit for use with submicron devices. The TVS design complies with IEC-1000-4-2 level 4 (EN61000-4-2) 15kV Air Discharge and 8kV Contact Discharge as well as MIL STD 883C-Method 3015-6 level 3. The TVS circuit handles up to 11A of surge current. The TVS/ESD structure is directly coupled to the output of the LDO regulator. ESD Transmission Line Pulsing Figure 9 shows the test circuit used for transmission line pulsing conditions. The 200ns pulsewidth has a rise time of 4ns. Figure 10 shows the Current vs. Voltage characteristics for various output capacitance values. _______________________________________________________________________________________ 9 150mA USB LDO Regulators with 15kV TVS and P Reset MAX5005/MAX5006/MAX5007 JENNINGS RELAY RF3D-26S IP 100% 80H 20 0.2F LEAKAGE RELAY 200k AMPERES 50% 40s t2 HIGH VOLTAGE 2F 4kV D+/DTVS DEVICE UNDER TEST 0 0 8s t1 TIME Figure 2. Surge Current Test Circut 12 10 8 CURRENT (A) 6 4 2 0 8/40s PULSE WIDTH COUT = 0 D+ OR D- TO GND Figure 3. Test Circuit Surge Current Waveform (Short-Circuit Load) 12 10 8 CURRENT (A) 6 4 2 0 COUT = 1F D+ OR D- TO GND 8/40s PULSE WIDTH 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 VOLTAGE (V) VOLTAGE (V) Figure 4. Surge Current I/V Characteristic (COUT = 0) Figure 5. Surge Current I/V Characteristic (COUT = 1F) 12 10 8 CURRENT (A) 6 4 2 0 COUT = 10F D+ OR D- TO GND 8/40s PULSE WIDTH 0 2 4 6 8 10 12 14 16 18 VOLTAGE (V) Figure 6. Surge Current I/V Characteristic (COUT = 10F) 10 ______________________________________________________________________________________ 150mA USB LDO Regulators with 15kV TVS and P Reset MAX5005/MAX5006/MAX5007 RC 1M CHARGE-CURRENT LIMIT RESISTOR HIGHVOLTAGE DC SOURCE RD 1500 DISCHARGE RESISTANCE DEVICE UNDER TEST IP 100% 90% AMPERES Ir PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) Cs 100pF STORAGE CAPACITOR 36.8% 10% 0 0 tRL TIME tDL CURRENT WAVEFORM Figure 7. Human Body ESD Test Model Figure 8. Human Body Model Current Waveform 7 6 D+ OR D- TO GND COUT = 0 200ns PULSE WIDTH 10M L CURRENT (A) 5 4 3 2 1 0 Zo = 50 SCOPE VIN DEVICE RL 0 2 4 6 8 10 12 14 16 VOLTAGE (V) Figure 10. Transmission Line Pulsing I/V Characteristic (COUT = 0) tRISE = 4ns 7 6 5 CURRENT (A) 4 3 2 1 D+ OR D- TO GND COUT = 1F 200ns PULSE WIDTH tpw = 200ns Figure 9. Transmission Line Pulsing Setup for ESD I/V Characteristics 0 0 2 4 6 8 10 12 14 16 VOLTAGE (V) Figure 11. Transmission Line Pulsing I/V Characteristic (COUT = 1F) ______________________________________________________________________________________ 11 150mA USB LDO Regulators with 15kV TVS and P Reset MAX5005/MAX5006/MAX5007 Chip Information 7 6 5 CURRENT (A) 4 3 2 1 0 0 2 4 6 8 10 12 14 16 D+ OR D- TO GND COUT = 10F 200ns PULSE WIDTH TRANSISTOR COUNT: 890 PROCESS: BiCMOS VOLTAGE (V) Figure 12. Transmission Line Pulsing I/V Characteristic (COUT = 10F) 12 ______________________________________________________________________________________ 150mA USB LDO Regulators with 15kV TVS and P Reset Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 10LUMAX.EPS 1 1 MAX5005/MAX5006/MAX5007 e 10 4X S 10 INCHES MAX DIM MIN 0.043 A 0.006 A1 0.002 A2 0.030 0.037 0.120 D1 0.116 0.118 D2 0.114 E1 0.116 0.120 E2 0.114 0.118 H 0.187 0.199 L 0.0157 0.0275 L1 0.037 REF b 0.007 0.0106 e 0.0197 BSC c 0.0035 0.0078 0.0196 REF S 0 6 MILLIMETERS MAX MIN 1.10 0.05 0.15 0.75 0.95 2.95 3.05 2.89 3.00 2.95 3.05 2.89 3.00 4.75 5.05 0.40 0.70 0.940 REF 0.177 0.270 0.500 BSC 0.090 0.200 0.498 REF 0 6 H y 0.500.1 0.60.1 1 1 0.60.1 TOP VIEW BOTTOM VIEW D2 GAGE PLANE A2 A b A1 D1 E2 c E1 L1 L FRONT VIEW SIDE VIEW PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE, 10L uMAX/uSOP APPROVAL DOCUMENT CONTROL NO. REV. 21-0061 I Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 (c) 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. |
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