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| PRELIMINARY CM9101 Compact Cost-effective Fast Charger Features * * * * * Monolithic linear charger requires no inductors, external sense resistors or blocking diodes A few external components are required 4.75V to 6.5V operating input voltage range. Battery temperature monitor with thermistor (NTC) interface Programmable the charging current to achieve the fastest charging rate without the risk of overloading the adapter Thermal limit control of charging current prevents overheating Maximum of 1A battery drain current Charging-current monitor output for system super vision of charging status TQFN-16, RoHS compliant lead-free package Product Description The CM9101 is an integrated linear-mode charger for single-cell, Lithium-ion batteries. It designed for com pact and cost-sensitive handheld devices. It provides programming charge current, battery temperature monitoring, charge status indicator, charge termina tion, high accuracy fast charge current and automatic charge voltage regulation. It requires no external block ing diodes or current sense resistors and needs only one external resistor to program the charging current. The CM9101 provides Precharge, Fast-charge (con stant-current), and Termination (constant-voltage) charging modes. The Precharge/Termination currents are preset to 10/5% of the Fast-charge current level. A host system can monitor the actual charge current at the ISET pin. The battery temperature can continuously measured by an external thermistor through the THERM pin. When the chip temperature reach 140C, the CM9101 goes into a latched shutdown mode stop charging until the chip temperature is below 140C will gradually charge and 105C resume fast charge. When the adapter is not present, the CM9101 draws less than 1A of drain current from the battery in ultra low power sleep mode. The CM9101 is packaged in a miniature 16-pin TQFN. It can operate over the ambient temperature range of 40C to 85C. * * * * Applications * * * * Cellular phones and smart phones PDAs Portable Media Viewers Digital Still Camera Cradle Chargers Typical Application Vin VIN 4.7u 5k VSTB BSEN 1u Vout 4k 4.7u GND ISET ENA VREF CM9101 VOUT THERM STAT 1k 10k Li-ion Battery 0.1u (c) 2006 California Micro Devices Corp. All rights reserved. 06/30/06 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 1 PRELIMINARY CM9101 Package Pinout PACKAGE / PINOUT DIAGRAM TOP VIEW (Pins Down View) Pin 1 Marking VSTB VIN NC NC BOTTOM VIEW (Pins Up View) 13 14 15 16 15 14 13 NC GND NC VREF 1 12 BSEN 12 11 10 9 16 1 CM9100 00QE 2 3 4 11 VOUT 10 THERM 9 STAT GND PAD 2 3 4 8 7 6 ISET 5 ENA 6 NC 7 CM9101-00QE 16-Lead TQFN Package (4mm x 4mm) Note: This drawing is not to scale. LEAD(s) NAME NC GND NC VREF ISET DESCRIPTION No connect. Ground pin. No connect. 4.2V, 2 mA reference output pin. Pin to set the maximum charging current in the Fast charge (CC) mode. Also, reflects actual charging current. A resistor between this pin and ground sets the charge current, ICH: RISET = 1000 x 2.5V ----------------------------I CC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ENA NC NC STAT THERM VOUT BSEN VSTB NC NC VIN Enable pin. Logic high (default value) enables charging. Logic low disables charging. No connect. No connect. Charging status indicator pin (open-drain output). Thermistor input pin from battery monitoring circuit. Charger output pin. Battery voltage remote sense pin. 4.2V output pin, connect a cap to ground to increase stability. No connect. No connect. Positive input supply voltage pin, which powers the charger. (c) 2006 California Micro Devices Corp. All rights reserved. 2 NC 8 PIN DESCRIPTIONS 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l 5 Fax: 408.263.7846 l www.cmd.com 06/30/06 PRELIMINARY CM9101 Ordering Information PART NUMBERING INFORMATION Lead Free Finish Pins 16 Package TQFN Ordering Part Number1 CM9101-00QE Part Marking CM9101 00QE Note 1: Parts are shipped in Tape & Reel form unless otherwise specified. Specifications ABSOLUTE MAXIMUM RATINGS PARAMETER ESD Protection (HBM) VIN to GND Pin Voltages VOUT, VSTB to GND ENA, ISET, STAT to GND BSEN, THERM, VREF to GND Storage Temperature Range Operating Temperature Range (Ambient) Lead Temperature (Soldering, 10sec) RATING 2 [GND - 0.3] to +6.5 [GND - 0.3] to +6.5 [GND - 0.3] to +6.5 [GND - 0.3] to +6.5 -65 to +150 -40 to +85 300 UNITS kV V V V V C C C ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1) SYMBOL VIN UVLO IQ PARAMETER VIN Supply Voltage UVLO Cut-in Threshold Quiescent Current CONDITIONS VIN All outputs are at no load Charging modes, exclud ing current to ISET and STAT pins. All outputs are at no load. VIN = 5.0V, ENA = low, excluding current to ISET and STAT pins. VIN = 0V (100 - resistor to ground), VBAT = 4.2V VBSEN < 3.2V 0.85 x IPR MIN 4.75 3.3 TYP 3.5 2 MAX 6.5 3.6 UNITS V V mA ISHDN Shutdown Supply Current 50 100 A IDR Battery Drain Current 0.5 1 A Charger Function IPR Precharge Mode Current 250 IPR = ----------------------R SET ( k ) 3.30 1.14 x IPR mA VCC CC Mode Voltage Threshold 3.20 3.40 V (c) 2006 California Micro Devices Corp. All rights reserved. 06/30/06 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 3 PRELIMINARY CM9101 Specifications (cont'd) ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1) SYMBOL ICC PARAMETER CONDITIONS CC Mode Charging Current, VBSEN > 3.5V MIN 0.92 x ICC TYP 2500 ICC = ----------------------RSET ( k ) 4.200 100 ITERM = ----------------------RSET ( k ) 4.100 105 140 1.0 120 4.200 4.200 0.2 MAX 1.08 x ICC 4.210 1.2 x ITERM 4.110 125 150 1.1 150 4.210 4.300 1.0 0.1 0.5 1.5 0.4 VIN = 5.0V (Note 6) VIN = 5.0V (Note 6) 0.9 x VBH 0.9 x VBC 80 VBH = 0.5 x VIN VBC = 7/8 x VIN 100 1.1 x VBH 1.1 x VBC 120 UNITS mA VCV ITERM CV Mode Voltage Threshold Charge Termination Current VBSEN > 4.190V 4.190 0.8 x ITERM 4.090 (Note 2) (Note 3) (Note 4) ICC = 500mA IREF < 1mA 95 130 0.9 100 4.190 4.100 V mA VRCH CT OTPLIMIT OCPLIMIT RDSON VREF VREF VSTB VSTB Recharge Mode Threshold Constant-temperature Mode, Limit Over-temperature Protec tion, Limit Over-current Charging (OCP), Limit RDSON of Charger MOSFET Regulated Voltage VREF Regulated Voltage VSTB V C C A m V V A V V V V V V mV Control Function BSEN Pin Leakage Current VIN = 0 IBSEN STAT (Open Drain) Output ISINK = 5mA VSTAT Low Voltage ISINK = 20mA VIH EN VIL EN ENA Input High Level ENA Input Low Level Thermistor Function (Note 4, 5) Battery HOT Voltage VBH Threshold (THERM Pin) VBC Battery COLD Voltage Threshold (THERM Pin) Hysterezis of VBH, VBC Note 1: VIN = 5.0V. All outputs are on. TA = 25C unless otherwise specified. Note 2: When chip temperature reaches 105C, the IC's internal thermal limit will maintain this temperature by decreasing the pro grammed charge current. Note 3: When chip temperature reaches 140C, the IC goes into a latched shutdown mode. It stops charging, stops supplying VOUT). To resume the charging function, a toggle of VIN is required. Note 4: This feature can be disabled by connecting the THERM pin to GND. Note 5: This function requires a Thermistor connected between the THERM pin and GND. Another resistor connected between THERM pin and VIN is required, its value should equal the Thermistor Hot Value (at 50C). In order to catch both the 0C and 50C thresholds (typical range for Li-ion battery) use Thermistors following 7/1 ratio (Thermistor COLD/Thermistor HOT=7). Note 6: If the battery HOT/COLD detection identifies a condition outside the thresholds, the IC stops charging the battery and waits for the temperature to return to the normal value. (c) 2006 California Micro Devices Corp. All rights reserved. 4 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 06/30/06 PRELIMINARY CM9101 Typical Performance Curves Charging Algorithm Battery Emulator, Cbattery = 30 mF RISET = 5 k Ichg_cc=500mA CV mode = 4.2V Battery voltage Battery voltage Charge current CC mode = 3.3V Charge current Ichg_pr=50mA Ichg_term=25mA Time (2 ms/div) Time (2 ms/div) Battery Current Thresholds Battery Voltage Thresholds Functional Block Diagram VIN OCP CM9101 Current Limit Qc VSTB VOUT BSEN Charger Control ENA THERM OTP GND Over-Temp Limit VREF LDO STAT ISET (c) 2006 California Micro Devices Corp. All rights reserved. 06/30/06 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 5 PRELIMINARY CM9101 Flow Chart 4.75V Yes Stop Charging Sleep mode Iin > 1A OCP Stop charging and Latch ; Set STAT=OFF OTP Tj > 150 oC Shutdown mode No Yes 2.5V Set Precharge Mode STAT=ON Precharge Mode Yes BSEN < 4.200V-100mV Standby Mode No Battery Temperature Checking BSEN > 3.3V CC Mode Yes No Stop charging Set STAT=OFF Set CC mode STAT=ON Charge Done or Battery is not present CV Mode Yes No ICH < Iterm No BSEN >= 4.200 V Set CV Mode Yes Note: If Therm is used, during any charging mode removing a , battery will cause the CV mode, then termination, the equivalent to charge done Until the battery is returned the . charger will cycle between standby mode and recharge cycle. - (c) 2006 California Micro Devices Corp. All rights reserved. 6 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 06/30/06 PRELIMINARY CM9101 Application Information The CM9101 is an integrated charger with a charging profile tailored for single-cell graphite electrode (anode) Li-ion batteries. With single resistor charge current pro gramming, the CM9101 can provide charge currents up to 1A, or limited to 100mA/500mA for USB input applications. The charger features the three modes required for a safe and reliable Li-ion charging profile; Precharge, Fast-charge, and Termination charge. Extensive safety features include battery temperature monitoring, volt age and current monitoring. A status indicator provides charge state information. into High Power mode, the circuit in Figure 1 can be used. Q1 can be the output of the controller. From USB VIN 500 mA 100 mA CM9101 VOUT 6.19k Q1 nmos ISET Charger BSEN 25.5k Figure 1. USB Input Circuit Linear Charger vs. Switching Charger A Li-ion battery charger can be either a switching or a linear regulator. A switching regulator type charger achieves higher efficiency, typical 90% or better, over a wide range of load and line conditions and generally offers a faster charging speed. However, a switching charger requires an external power inductor, which occupies substantial PC board space with added weight. Another issue with switching regulators is the switching noise and the potential EMI it generates. In contrast, The CM9101 linear charger is implemented with a single IC, without the use of an inductor. The CM9101 provides a complete Li-ion charging control system, with integrated power MOSFETs and several important features, requiring just a few external resis tors and capacitors for a compact system design. A sophisticated thermal management system addresses the concerns commonly associated with linear charg ers. Charging Li-ion Batteries Once the CM9101 detects the presence of a valid AC adapter, and checks that the battery voltage at BSEN is less then VIN and that the battery temperature in within the correct range, it is ready to charge the Li-ion battery. If the battery voltage is deeply discharged (less than 3.2V), the CM9101 will start in the Precharge mode, charging at 10% of the programmed Fast-charge cur rent level. See Figure 2. While the battery is charging, the status pins will be set to STAT=0. The Precharge current will gradually bring the battery voltage to above 3.2V. PreCharge 0.8A CC Mode CV Mode Charging Voltage 4.0V Input When using a constant-voltage, 5VDC nominal, AC adapter, the semi-regulated voltage to the charger, after accounting for the conduction losses through the power cord and connector contacts, is a voltage in the range of 5.0V to 6.0V. The USB standard specifies a 5.0V +/-5% bus voltage, capable of 500mA (High Power peripheral configura tion) of current. When using a USB input, the charging current must be limited to <500mA, which is set with the Rset resistor. In a system that requires 100mA starting current until told by the host controller to go (c) 2006 California Micro Devices Corp. All rights reserved. 06/30/06 0.4A Charging Current 3.0V 2.0V Figure 2. Typical Li-ion Battery Charging Process Once the battery voltage exceeds the 3.3V threshold, the CM9101 enters the Fast-charge, constant-current (CC) mode. The status pins will be set to STAT=0. Dur ing the CC mode, the charging current is limited by the 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 7 PRELIMINARY CM9101 Application Information (cont'd) maximum charging current, programmed with a single resistor between ISET and ground, RISET: 2.5V x 1000 IFASTCHG (max) = ------------------------------ RISET Charging Current Foldback in the Overtemperature Condition A limitation of linear chargers is that they are vulnera ble to over-temperature conditions. The CM9101 will throttle down the charging current when the chip junc tion temperature reaches 105C (with 10C of hystere sis). This protects the charger IC and its nearby external components from excessive temperature. The Charger IC junction temperature is determined by several factors in the following equation: TJ = TA + PD + Rth(JA) (1) Most battery manufactures recommend an optimal charging current for their battery. This is typically a time ratio related to the battery capacity, with a value of .7C to 1C, once the battery is above the Precharge voltage level. For example, a 750mAh capacity battery with recommended charge of .7C could have ICC set for about 525mA, with RISET equal to 4.75k, 1%. The actual Fast-charge current might be further limited by either the maximum chip temperature limit, deter mined by the power dissipation on the CM9101 chip, the ambient temperature (TA), and the junction-to ambient thermal resistance, Rth(JA). When the battery terminal voltage, sensed at BSEN, approaches 4.2V, the CM9101 enters the Termination (CV) mode. The charger then regulates its output volt age at 4.20V, and the charging current gradually decreases as the battery's internal voltage, VOC, rises toward 4.2V. The actual charging current is now deter mined by the differential voltage (4.20V - VOC) and the internal impedance, Rinternal, of the Li-ion battery-pack. The CM9101 ends the charging process when Termi nation mode CV charging current drops below 5% of the Fast-charge (CC) mode current level. Once termi nated, the charge current is completely stopped and no trickle charge is applied. Trickle (or float) charging is not required due to the minimal self-discharge of the Li ion cells, and they are unable to absorb overcharge, which causes plating of metallic lithium and shortens the life of the battery. Following the Termination mode, the charger will enter the Standby mode. The status pin will be set to STAT=VIN. If the wall adapter is left plugged-in while in the Standby mode, the charger will continue to monitor the battery voltage. It automatically re-charges the battery when the battery voltage drops below the re-charge threshold. When the adapter is removed, the CM9101 will drain less than 1A from the battery. The Rth(JA) is usually determined by the IC package and the thermal resistance between the package and the PC board. In particular, a SMD IC package relies on the underlying PC board copper to move the heat away from the junction. The key to reducing the ther mal resistance between the IC package and the under lying PC board is using a large copper (Cu) area for solder attach and a large ground plane underneath the charger IC to conduct the heat away. The power dissipation (PD in equation 1) of a linear charger is the product of input-output voltage differen tial and output current. PD = (VIN - V OUT ) x I OUT Highest power dissipation occurs when the battery at its lowest level (3.2V), when it just starts in the Fastcharge (CC) mode. Assuming VIN = 5.0V, VBAT = 3.2V, ICC = 1A, the PD = (5V-3.2V) x 1A = 1.8W. Assuming Rth(JA) = 50C/W, then -T = 1.8W x 50C/W = 90C. If the ambient temperature (TA) is 35C, then the junction temperature (TJ) could reach 125C without over-tem perature current foldback. With over-temperature (OT) current foldback, the CM9101 will throttle down the charging current, allow ing the junction temperature will reach steady-state equilibrium of 105C, which translates into 1.4W of power dissipation, or 0.78A of charge current. As the battery voltage rises during charging, the allowable PD dissipation is increased. When the battery voltage reaches 3.6V, a full 1.0A of charging current is allowed. (c) 2006 California Micro Devices Corp. All rights reserved. 8 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 06/30/06 PRELIMINARY CM9101 Application Information (cont'd) OTP and OCP In addition to chip temperature regulation at 105C, the CM9101 provides absolute over-temperature shutdown protection. In the case of a malfunctioning charger con trol, high ambient temperature or an unexpectedly high IC thermal resistance, Rth(JA) (for example; due to faulty soldering of the charger IC chip). The CM9101 provides an absolute OTP shutdown at junction tem perature of 150C. thermistor attached near the battery-pack. The inter face surveys the voltage on the THERM pin, which an input to a window comparator with thresholds associ ated with two battery-pack fault conditions; Vtherm<1/2 x VIN for Battery Hot Vtherm>7/8 x VIN for Battery Cold To avoid oscillation near the Vtherm thresholds, both windows have an associated hysteresis of 200mV. Charging status CM9101 provides a charging status indicator pin: STAT. This is an open-drain output, which can drive an LED directly, with up to 20mA of current sinking capability. Alternatively, the system supervisory microprocessor can monitor the battery charging status by interfacing with this pin, using a 100k pull-up resistor. See Table 1. CHARGE STATUS Precharge in progress Fast-charge in progress Charge completed Charge suspended (includ ing thermistor fault, OTP, OCP and ENA pulled low) STAT Low Low High High Rc(28K) 30K 20K 10K 0 7/8*Vin Vtherm COLD OK HOT 1/2*Vin Thermistor Resistance + Rh(4K) 0oC 20oC 40oC 60oC Figure 3. Vtherm Windows Table 1: Charge Status for STAT Thermistor interface Li-ion batteries are prone to overheating when exposed to excess current or voltage. High heat, combined with the volatile chemical properties of lithium, can cause fire in some cases. The CM9101 provides a thermal interface for over-temperature protection, allowing safe charging of Li-ion cells. For safety, manufacturers suggest suspending any charging above 45C and below 10C until the battery reaches the normal operating temperature range. Charging below freezing must be avoided because plating of lithium metal could occur. Battery capacity will be reduced if charged between 0C and +10C due to the inefficient charging process at low temperatures. The CM9101 has incorporated a thermistor interface, responsible for the temperature control of the batterypack through a negative temperature coefficient (NTC) (c) 2006 California Micro Devices Corp. All rights reserved. 06/30/06 If the voltage on the THERM pin either exceeds 7/8 x VIN, or goes below 1/2 x VIN, the CM9101 stops charg ing. The charging resumes only when the voltage on the THERM pin returns to within the window of 1/2 x VIN to 7/8 x VIN. Figure 3 illustrates these windows. The thermistor interface consists of a thermistor con nected between THERM pin and ground, and a resis tor, Rtherm, connected between the THERM pin and VIN, as shown in Figure 4. To determine the proper value for Rtherm, the thermistor used in the batterypack should follow the 7:1 ratio on the Resistance vs. Temperature curve (for example, Vishay Dale's R-T Curve 2): * R COLD (at 0C) ------------------------------------------ = 7 R HOT (at 50C) 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 9 PRELIMINARY CM9101 Application Information (cont'd) A thermistor with a room temperature value of about 10k, or higher, will keep the interface current drain from VIN low. Choose the Rtherm value equal to Rhot, with a 0.5% tolerance. A metal film resistor is best for temperature stability. For example, a typically used thermistor for this appli cation is Vishay Dale's NTHS0603N02N1002J. This thermistor has a Rhot (50C) = 4k and Rcold (0C) = 28k. The thermistor interface will work properly if Rtherm is 4.02k, .5%. At 25C the thermistor value is 10k. Therefore, a value of voltage at the THERM pin will be: Vtherm= 10k x5V = 3.57V 25o C 14k When using the CM9101 with a dummy battery, without a thermistor attached, this function can be disabled by connecting the THERM pin to GND. In this case, the THERM interface will never provide a fault condition to stop charge. If there is no need for the thermistor interface, the THERM pin could be used as a second ENABLE pin for charging control. If the system has an additional control condition for stop charge, then the THERM pin could be used as a second control input. Connecting the THERM pin to VIN will stop charging, while pulling to GND will resume charging. Charging Control by the Host System The CM9101 allows a host-system to take active con trol of the charging process by providing actual charg ing current monitoring via the 1000:1 current mirror on RISET. This is especially useful for the system's direct control of the Termination threshold (preset to 5% of CC mode level). 4k Vtherm= x5V = 2.5V 50o C 8k Vtherm= 28k x5V = 4.375V 0o C 32k Mode Summary VIN Rtherm (4k) THERM NTC VOUT Battery Pack Vishay NTHS0603N02N1002 J Thermistor Interface Precharge mode is the typical charge starting mode for pre-conditioning a deeply discharged battery (<3.3V). A constant current of 10% of the programmed Fast-charge current is applied to raise the voltage safely above 3.3V. Fast-charge mode is the constant current charging mode that applies most of the battery charge. A pro grammed constant current is applied to bring the bat tery voltage to 4.2V. Termination mode is the final charging mode, where a constant voltage of 4.2V is applied to the battery until the charge current drops below 5% or the programmed Fast-charge current. Standby mode is entered after a successful Termina tion mode and charging is done. Charging stops. In this mode, the battery is monitored, and when its voltage drops below the re-charge threshold, a new charge cycle begins. Shutdown mode is triggered by a charging fault. These include THERM pin voltage outside the window (battery is too hot, too cold, or removed), Input current that exceeds 2.4A (OCP), the IC junction temperature CM9101 Charger BSEN Figure 4. NTC Thermistor Interface Because the thermistor is typically located on the bat tery-pack, removal of the battery-pack will remove the thermistor, and cause value of voltage at the THERM pin to go above the window and thus stop charging. This allows the THERM interface to function also as a battery present detector. (c) 2006 California Micro Devices Corp. All rights reserved. 10 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 06/30/06 PRELIMINARY CM9101 Application Information (cont'd) exceeds 150C (OTP). Pulling ENA low also puts the charger in Shutdown mode. Charging stops. Sleep mode is entered when the Adapter is removed (or is the wrong voltage). Charging stops. In this mode, the CM9101 draws less than 1 A of current from the battery. Layout Considerations Because the internal thermal foldback circuit will limit the current when the IC reaches 105C it is important to keep a good thermal interface between the IC and the PC board. It is critical that the exposed metal on the backside of the CM9101 be soldered to the PCB ground. The Cu pad should is large and thick enough to provided good thermal spreading. Thermal vias to other Cu layers provide improved ther mal performance. VIN and VOUT are high current paths and the traces should be sized appropriately for the maximum current to avoid voltage drops. BSEN is the battery feedback voltage and should be connected with its trace as close to the battery as possible. Component Selection The constant voltage AC Adapter must be selected carefully to minimize power losses and heat dissipation in the charger. The input supply should be between 5.0 and 6.0V. The lowest allowable input voltage will mini mize heat dissipation and simplify the thermal design. Typical Evaluation Circuit VIN C1 4.7U 16 15 14 13 VIN 1 NC NC VSTB BSENSE VOUT THERM STAT NC 8 Li-ion Battery 12 NC GND NC +VBAT C3 4.7U 3 CM9101 THERMISTOR 2 11 10 THERM R6 500 R7 10K R8 4K C2 0.1U 4 VREF ISET ENSEL NC 6 9 (c) 2006 California Micro Devices Corp. All rights reserved. 06/30/06 ENA R5 * 5K 5 7 R4 499 D1 GLED 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 11 PRELIMINARY CM9101 Mechanical Details TQFN-16 Mechanical Specifications The CM9101-00QE is supplied in a 16-lead, 4.0mm x 4.0mm TQFN package. Dimensions are presented below. For complete information on the TQFN16, see the Cal ifornia Micro Devices TQFN Package Information doc ument. Mechanical Package Diagrams D PACKAGE DIMENSIONS Package Leads Dim. A A1 A3 b D D1 D2 E E1 E2 e L # per tape and reel 0.45 2.00 2.00 3.90 0.25 3.90 Millimeters Min 0.07 0.00 0.20 REF 0.30 4.00 1.95 REF 2.10 4.00 1.95 REF 2.10 0.65 TYP. 0.55 0.65 0.018 3000 pieces E2 TQFN-16 (4x4) 16 Inches Max 0.80 0.05 0.35 4.10 2.20 4.10 2.20 Min 0.28 0.00 .008 0.010 0.154 0.079 0.154 0.079 0.012 0.157 0.077 0.083 0.157 0.077 0.083 0.026 0.022 0.026 0.087 D1 E Pin 1 Marking Nom 0.030 Max 0.031 0.002 0.014 0.161 0.08 C 0.10 C Nom 0.75 0.15 C 0.15 C TOP VIEW 0.087 0.161 SIDE VIEW A3 A1 A Controlling dimension: millimeters E1 D2 L DAP SIZE 1.8 X 1.8 e b 16X 0.10 M CAB BOTTOM VIEW Package Dimensions for 16-Lead TQFN (c) 2006 California Micro Devices Corp. All rights reserved. 12 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 06/30/06 |
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