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19-3689; Rev 1; 2/07
KIT ATION EVALU ABLE AVAIL
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
General Description Features
93% Max/85% Avg. Efficiency (PLED/PBATT) Over Li+ Battery Discharge 1% LED Current Accuracy 125mA Total Drive Capability Adaptive 1x/1.5x Mode Switchover Single-Wire, Serial-Pulse Dimming (MAX8630Z) Independent On/Off/Dimming for Main and Sub Linear--Full, 31/32nd, 30/32nd, ... 1/32nd Direct-PWM Dimming (MAX8630Y) 15, 18, 20, and 25mA Full-Scale Versions Low 0.1A Shutdown Current Soft-Start Eliminates Inrush Current Output Overvoltage Protection Thermal-Derating Function Protects LEDs 14-Pin, 3mm x 3mm TDFN Package
MAX8630Y/MAX8630Z
The MAX8630Y/MAX8630Z charge pumps drive up to 5 white LEDs with regulated constant current up to 125mA total. By utilizing adaptive 1x/1.5x charge-pump modes and very low-dropout current regulators, they achieve high efficiency over the full 1-cell Li+ battery input voltage range. The 1MHz fixed-frequency switching allows for tiny external components, and the regulation scheme is optimized to ensure low EMI and low input ripple. An integrated derating function protects the LEDs from overheating during high ambient temperatures. The MAX8630Y/MAX8630Z are factory trimmed for fullscale LED current options of 15mA, 18mA, 20mA, and 25mA. The MAX8630Z uses two enable inputs (ENM for 3 main LEDs and ENS for 2 sub LEDs) for simple on/off control and single-wire, serial-pulse dimming in 32 linear steps. The MAX8630Y uses a single direct PWM input (PWM) to control all 5 LEDs with DC current proportional to the PWM duty cycle. If both ENM and ENS (or PWM) are kept low for more than 4ms, the MAX8630_ enters shutdown. The MAX8630Y/MAX8630Z are available in a 14-pin, 3mm x 3mm TDFN package (0.8mm max height).
Ordering Information
PART MAX8630YETD15+T PINPACKAGE 14 TDFN (3mm x 3mm) TOP MARK AAS PKG CODE T1433-2
Applications
Display Backlight (Up to 5 LEDs) Main (3 LEDs) + Sub (2 LEDs) Displays Cell Phones and Smartphones PDAs, Digital Cameras, and Camcorders
Note: All devices are specified to operate over the -40C to +85C operating temperature range. +Denotes a lead-free package. Ordering Information continued at end of data sheet. Selector Guide appears at end of data sheet.
Typical Operating Circuit
TOP VIEW
1F
Pin Configuration
ENM (CPWM) 9 6 C1P ENS (PWM) 8 7 OUT
LED1
LED2
LED3
LED4 11 4 C2N
INPUT 2.7V TO 5.5V 1F
C1P IN
C1N
OUT
OUTPUT 1F
14
13
12
10
GND
MAX8630Z
LED1 LED2
MAIN
ENABLE MAIN ON/OFF AND DIMMING ENABLE SUB ON/OFF AND DIMMING
ENM
LED3 SUB LED4
MAX8630Y MAX8630Z
ENS C2P C2N
LED5
1 GND
2 C1N
3 IN
1F
( ) ARE FOR MAX8630Y
TDFN 3mm x 3mm
________________________________________________________________ Maxim Integrated Products
C2P
LED5 5
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.
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN MAX8630Y/MAX8630Z
ABSOLUTE MAXIMUM RATINGS
IN, OUT to GND.....................................................-0.3V to +6.0V C1N, C2N, ENM, CPWM, ENS, PWM to GND ............................................-0.3V to (VIN + 0.3V) LED_ to GND ............................................-0.3V to (VOUT + 0.3V) C1P, C2P to GND ...-0.3V to greater of (VOUT + 1V) or (VIN + 1V) OUT Short Circuit to GND ..........................................Continuous Continuous Power Dissipation (TA = +70C) 14-Pin TDFN 3mm x 3mm (derate 18.2mW/C above +70C) .............................1454mW 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 = 3.6V, VGND = 0V, EN_ (PWM) = IN, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER IN Operating Voltage Undervoltage-Lockout Threshold Undervoltage-Lockout Hysteresis Output Overvoltage Protection Threshold No-Load Supply Current Shutdown Supply Current Soft-Start Time (tSOFT-START) MAX8630_ETD15 Full-Scale LED Current MAX8630_ETD18 MAX8630_ETD20 MAX8630_ETD25 Full-Scale LED Current Accuracy Derating Function Start Temperature Derating Function Slope LED_ Dropout Voltage 1x to 1.5x Mode Transition Threshold Input Voltage Mode Transition Hysteresis 1.5x Mode Regulation Voltage OUT Pulldown Resistance in Shutdown Minimum of VLED_ ENM = ENS (PWM) = GND TA = +40C to +85C 100% LED setting (Note 2) VLED_ falling TA = +25C TA = -40C to derating function start temperature -1 -3.5 VOUT rising, any LED_ = GND 1/32nd setting, 1.5x mode 1/32nd setting, 1x mode ENM = ENS (PWM) = GND TA = +25C TA = +85C VIN rising or falling CONDITIONS MIN 2.7 2.20 2.45 100 5 1.4 0.35 0.01 0.1 2 15 18 20 25 0.3 0.3 40 -1.67 40 88 70 122 5 75 +1 +3.5 % C %/C mV mV mV mV k mA 2 TYP MAX 5.5 2.65 UNITS V V mV V mA A ms
2
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125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 3.6V, VGND = 0V, EN_ (PWM) = IN, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER Open-Loop OUT Resistance Maximum OUT Current OUT Short-Circuit Current Limit Switching Frequency Direct-PWM Dimming Filter Corner Frequency (MAX8630Y) EN_ (PWM) High Voltage EN_ (PWM) Low Voltage EN_ (PWM) Minimum Input Slew Rate EN_ (PWM) Input Current EN_ (PWM) Low Shutdown Delay (tSHDN) EN_ tLO (See Figure 4) EN_ tHI (See Figure 4) Initial EN_ tHI (See Figure 4) Thermal Shutdown Thermal-Shutdown Hysteresis First EN_ (PWM) high pulse CCPWM = 0.1F, (PWM frequency of 900Hz to 200kHz recommended) VIN = 2.7V to 5.5V VIN = 2.7V to 5.5V VIN = 2.7V to 5.5V (recommended minimum slew rate) VEN_ (PWM) = 0V or 5.5V TA = +25C TA = +85C 4 0.5 0.5 50 +160 20 500.0 1 0.01 0.1 1 1.4 0.4 CONDITIONS 1x mode, (VIN - VOUT) / IOUT 1.5x mode, (1.5VIN - VOUT) / IOUT VIN 3.2V, VOUT = 3.9V VOUT < 1.25V 125 57 1 10 MIN TYP 0.8 3.2 MAX 1.5 7.2 UNITS mA mA MHz Hz V V V/s A ms s s s C C
MAX8630Y/MAX8630Z
Note 1: Limits are 100% production tested at TA = +25C. Limits over the operating temperature range are guaranteed by design. Note 2: Dropout voltage is defined as the LED_ to GND voltage at which current into LED_ drops 10% from the value at VLED_ = 0.2V.
Typical Operating Characteristics
(VIN = 3.6V, ENM = ENS = IN, TA = +25C, unless otherwise noted.)
EFFICIENCY vs. INPUT VOLTAGE DRIVING 5 LEDs
MAX8630Y/Z toc01
INPUT CURRENT vs. INPUT VOLTAGE DRIVING 5 LEDs
MAX8630Y/Z toc02
INPUT CURRENT vs. INPUT VOLTAGE DRIVING 3 MAIN LEDs
VIN FALLING 140 INPUT CURRENT (mA) 120 100 80 60 40 ILED = 1.875mA 20 0 ILED = 8.125mA ILED = 20mA
MAX8630Y/Z toc03
100 90 80 EFFICIENCY (%) 70 60 50 40 30 20 10 0 2.7 3.0 3.3 3.6 3.9 VIN FALLING ILED = 8.125mA ILED = 1.875mA ILED = 20mA
160 VIN FALLING 140 INPUT CURRENT (mA) 120 100 ILED = 8.125mA 80 60 40 20 0 ILED = 1.875mA ILED = 20mA
160
4.2
2.7
3.0
3.3
3.6
3.9
4.2
2.7
3.0
3.3
3.6
3.9
4.2
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
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3
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN MAX8630Y/MAX8630Z
Typical Operating Characteristics (continued)
(VIN = 3.6V, ENM = ENS = IN, TA = +25C, unless otherwise noted.)
INPUT RIPPLE VOLTAGE vs. SUPPLY VOLTAGE DRIVING 5 WHITE LEDs
MAX8630Y/Z toc04
INPUT CURRENT vs. INPUT VOLTAGE DRIVING 2 SUB LEDs
160 VIN FALLING 140 INPUT CURRENT (mA) 120 100 80 60 ILED = 8.125mA 40 20 0 2.7 3.0 3.3 3.6 3.9 4.2 INPUT VOLTAGE (V) ILED = 1.875mA ILED = 20mA 140
LED CURRENT MATCHING vs. INPUT VOLTAGE (25mA/LED)
MAX8630Y/Z toc05
20mA/LED INPUT RIPPLE VOLTAGE (mVP-P) 120 100 80 60 40 20 0 2.7 3.2 3.7 2mA/LED 15mA/LED 8mA/LED
27 26 LED CURRENT (mA) 25 24 23 22 21 20
4.2
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
LED CURRENT MATCHING vs. INPUT VOLTAGE (2.5mA/LED)
MAX8630Y/Z toc07
OUTPUT CURRENT vs. TEMPERATURE (5 LEDs AT 25mA EACH)
MAX8630Y/Z toc08
2.80 2.70 2.60 LED CURRENT (mA) 2.50 2.40 2.30 2.20 2.10 2.00 2.7 3.1 3.5 3.9 4.3 4.7 5.1
140 120 OUTPUT CURRENT (mA) 100 80 60 40 20 0 TEMPERATURE DERATING
5.5
-40
-15
10
35
60
85
INPUT VOLTAGE (V)
TEMPERATURE (C)
1x MODE OPERATING WAVEFORMS (VIN = 4.0V)
MAX8630Y/Z toc09
1.5x MODE OPERATING WAVEFORMS (VIN = 3.6V)
MAX8630Y/Z toc10
VOUT
200mV/div (AC-COUPLED)
VOUT
200mV/div (AC-COUPLED)
VIN
200mV/div (AC-COUPLED)
VIN IIN
200mV/div (AC-COUPLED) 100mA/div
IIN
100mA/div
1s/div
1s/div
4
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MAX8630Y/Z toc06
28
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN MAX8630Y/MAX8630Z
Typical Operating Characteristics (continued)
(VIN = 3.6V, ENM = ENS = IN, TA = +25C, unless otherwise noted.)
STARTUP AND SHUTDOWN
MAX8630Y/Z toc11
MAIN STARTUP AND SHUTDOWN WITH SUB ENABLED
MAX8630Y/Z toc12
5V/div VENM AND VENS 2V/div
VENM
5V/div
2V/div VOUT
VOUT
0 100mA/div IIN 0 100mA/div IOUT 1ms/div
0 100mA/div 0 100mA/div 0
IIN
IOUT 1ms/div
0
STARTUP AND DIMMING
MAX8630Y/Z toc13
LINE-TRANSIENT RESPONSE WITH MODE CHANGE (VIN = 3.8V TO 3.2V TO 3.8V)
MAX8630Y/Z toc14
VENM AND VENS
5V/div 1V/div
VIN
1V/div
VOUT
VOUT
500mV/div 3V
IOUT
20mA/div
IOUT
50mA/div 0
20ms/div
200s/div
Pin Description
PIN MAX8630Z 1 MAX8630Y 1 NAME FUNCTION Ground. Connect GND to system ground and the input bypass capacitor as close to the IC as possible. Connect GND to the exposed pad directly under the IC. Transfer Capacitor 1 Negative Connection. Connect a 1F ceramic capacitor from C1P to C1N. Supply Voltage Input. Connect a 1F ceramic capacitor from IN to GND. The input voltage range is 2.7V to 5.5V. Transfer Capacitor 2 Negative Connection. Connect a 1F ceramic capacitor from C2P to C2N.
GND
2 3 4
2 3 4
C1N IN C2N
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5
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN MAX8630Y/MAX8630Z
Pin Description (continued)
PIN MAX8630Z 5 6 MAX8630Y 5 6 NAME C2P C1P FUNCTION Transfer Capacitor 2 Positive Connection. Connect a 1F ceramic capacitor from C2P to C2N. Transfer Capacitor 1 Positive Connection. Connect a 1F ceramic capacitor from C1P to C1N. Output. Connect a 1F ceramic capacitor from OUT to GND. Connect OUT to the anodes of all the LEDs. In shutdown, OUT is pulled down by an internal 5k resistor. Enable and Dimming Control for Sub LEDs (LED4 and LED5). Drive ENS logiclow for greater than 4ms to disable the sub LEDs. Drive both ENM and ENS logic-low for greater than 4ms to shut down the IC. Drive ENS logic-high to begin soft-start and enable maximum (100%) sub LED current. Subsequent pulses on ENS cause the sub LED current to decrease in 32 linear steps. Because of the soft-start delay, it is possible to turn on the IC and quickly set a dim level so the sub LED current never transitions through the maximum setting. See the ENM/ENS Dimming Control section. Enable and Dimming Control for Main LEDs (LED1, LED2, and LED3). Drive ENM logic-low for greater than 4ms to disable the main LEDs. Drive both ENM and ENS logic-low for greater than 4ms to shut down the IC. Drive ENM logichigh to begin soft-start and enable maximum (100%) main LED current. Subsequent pulses on ENM cause the main LED current to decrease in 32 linear steps. Because of the soft-start delay, it is possible to turn on the IC and quickly set a dim level so the main LED current never transitions through the maximum setting. See the ENM/ENS Dimming Control section. Direct PWM input. PWM controls output current as a percentage of full-scale current in proportion to PWM signal duty cycle. The frequency range is 900Hz to 200kHz. PWM Filter Capacitor Connection. Connect a capacitor from CPWM to GND to form a filter with the internal 150k resistor. The recommended capacitor for 10Hz corner is 0.1F. Sub LED Cathode Connections and Charge-Pump Feedback. Current flowing into LED_ is based on the ENS (or PWM) description above. The charge pump regulates the lowest LED_ voltage to 0.12V. Connect LED_ to OUT if the corresponding LED is not populated. Main LED Cathode Connections and Charge-Pump Feedback. Current flowing into LED_ is based on the ENM (or PWM) description above. The charge pump regulates the lowest LED_ voltage to 0.12V. Connect LED_ to OUT if the corresponding LED is not populated. Exposed Paddle. Connect to GND directly under the IC.
7
7
OUT
8
--
ENS
9
--
ENM
--
8
PWM
--
9
CPWM
10 11 12 13 14 --
10 11 12 13 14 --
LED5 LED4 LED3 LED2 LED1 EP
6
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125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN MAX8630Y/MAX8630Z
1F 1F
2.7V TO 5.5V 1F
C1P IN
C1N OUT 1F
2.7V TO 5.5V 1F
C1P IN
C1N OUT 1F
GND
MAX8630Z
LED1 LED2
MAIN
GND
MAX8630Y
LED1 LED2 LED3 LED4
ENABLE MAIN ON/OFF AND SERIAL DIMMING ENABLE SUB ON/OFF AND SERIAL DIMMING
CPWM 0.1F SUB
ENM
LED3 LED4
ENS C2P C2N
LED5
DIRECT PWM SIGNAL
PWM C2P C2N
LED5
1F
1F
Figure 1. Typical Applications Circuit with the MAX8630Z
C1 1F C2 1F
Figure 2. Typical Applications Circuit with the MAX8630Y
INPUT 2.7V TO 5.5V CIN 1F
C1P IN
C1N
C2P
C2N OUT COUT 1F
1x/1.5x REGULATING CHARGE PUMP
GND ERROR AMP 1 MAX8630Y MAX8630Z OVD 1.25V ENS (PWM) ENM (CPWM) CONTROL AND REFERENCE 0.12V SUB CONTROL MAIN CONTROL 0.6V LED1 LED2 MAX8630Y ONLY LED3 LED4 LED5 ERROR AMP 2 0.6V RSET + - + - + - + - + - D1 D2 D3 D4 D5
MIN SELECT
( ) ARE FOR MAX8630Y
Figure 3. Functional Diagram _______________________________________________________________________________________ 7
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN MAX8630Y/MAX8630Z
Detailed Description
The MAX8630_ charge pump drives up to 5 white LEDs (3 main LEDs and 2 sub LEDs) with regulated constant current for uniform intensity. By utilizing adaptive 1x/1.5x charge-pump modes and very low-dropout current regulators, it achieves 125mA guaranteed output-drive capability and high efficiency over the 1-cell Li+ battery input voltage range. 1MHz fixed-frequency switching allows for tiny external components and the regulation scheme is optimized to ensure low EMI and low input ripple. The MAX8630Z provides independent on/off/dimming control for main and sub displays (see Figure 1). The MAX8630Y allows direct-PWM dimming of all five LEDs together (see Figure 2). A functional diagram for the MAX8630Z/MAX8630Y is shown in Figure 3. and the LED output current is then ramped up in 32 linear steps. If the current regulators are in dropout at the end of this time, the charge pump switches to 1.5x mode and the current regulators are ramped again. If the output is shorted to ground (VOUT < 1.25V), the part stays in the initial soft-start stage and output current is limited by the ramped current source. Additionally, when the main or sub LED current rolls over from 1/32 to full, the LED current regulators soft-start again to eliminate input current spikes.
ENM/ENS Dimming Control (MAX8630Z)
When the LEDs are enabled (by driving EN_ high), the MAX8630Z goes through soft-start and brings the LED current up in 32 linear steps. Dim the MAX8630Z by pulsing EN_ low (500ns to 500s pulse width). Each pulse reduces the LED current by 1/32nd. After 31 pulses, the current reaches 1/32, and the next pulse restores the current to 100%. Figure 4 shows a timing diagram for EN_. If dimming control is not required, ENM and ENS work as simple on/off controls. Drive ENM/ENS high to enable the LEDs, or drive ENM/ENS low for shutdown. The LEDs operate at 100% brightness under these simple on/off conditions.
1x to 1.5x Switchover
When VIN is higher than VOUT, the MAX8630_ operates in 1x mode and VOUT is pulled up to VIN. The internal current regulators regulate the LED current. As V IN drops, VLEDMIN_ eventually falls below the switchover threshold of 88mV, and the MAX8630_ starts switching in 1.5x mode, and VLEDMIN is regulated to 122mV by the charge pump. To switch back to 1x mode, the MAX8630_ determines if VIN - VOUT is sufficient to keep V LEDMIN greater than 88mV. The comparator that makes this judgment is adaptive and matches the switchover for the conditions.
PWM Dimming Control (MAX8630Y)
Dim the MAX8630Y by applying a direct-PWM logiclevel signal to PWM. An internal resistor combined with the capacitor at CPWM forms a lowpass filter that converts the PWM signal to DC LED current that is proportional to the PWM signal's duty cycle. All five LEDS are controlled together on the MAX8630Y. The PWM frequency range is 900Hz to 200kHz. If dimming control is not required, PWM works as a simple on/off control. Drive PWM high to enable the LEDs, or drive PWM low for shutdown.
Soft-Start
The MAX8630_ includes soft-start circuitry to eliminate inrush current at turn-on. When starting up, the output capacitor is charged directly from the input with a ramped current source (with no charge-pump action) until the output voltage approaches the input voltage. Once this occurs, the charge pump enters 1x mode,
0 EN_ INITIAL tHI > 50s tSOFT-START FULL
1
2
3
4
5
27
28
29
30
31
32
tLO 31/32 30/32 500ns TO 500s 29/32 28/32 27/32 6/32
tHI >500ns
FULL
31/32
tSHDN 4ms
ILED_ SHUTDOWN
5/32
4/32
3/32
2/32
1/32
SHUTDOWN
Figure 4. MAX8630Z EN_ Timing Diagram
8
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125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
Shutdown Mode
When both ENM and ENS (or PWM) are held low for 4ms or longer, the MAX8630_ is shut down and put in a low-current mode. OUT is internally pulled to GND with 5k during shutdown.
Applications Information
Driving Fewer than 5 LEDs
To avoid overvoltage protection mode when using fewer than five LEDs, connect any unused LED_ to OUT. The MAX8630_ contains special circuitry to detect this condition and disables the corresponding current regulator to avoid wasting battery current.
MAX8630Y/MAX8630Z
Overvoltage Protection
If any LED fails as an open circuit, the corresponding VLED_ goes to 0V, and the output voltage is limited to about 5V by gating on/off the charge pump. In case any LED_ is floating or grounded, the MAX8630_ operates in the same overvoltage protection mode. To avoid overvoltage protection mode when using fewer than five LEDs, connect any unused LED_ to OUT. The MAX8630_ contains special circuitry to detect this condition and disables the corresponding current regulator to avoid wasting battery current.
Input Ripple
For LED drivers, input ripple is more important than output ripple. Input ripple depends on the source supply's output impedance. Adding a lowpass filter to the input of the MAX8630_ further reduces input ripple. Alternatively, increasing CIN to 2.2F (or 4.7F) cuts input ripple in half (or in fourth) with only a small increase in footprint. The 1x mode always has very low input ripple.
Thermal Shutdown
The MAX8630_ includes a thermal-protection circuit that shuts down the IC when the die temperature reaches about +160C. The part turns on after the IC cools by approximately 20C.
Component Selection
Ceramic capacitors are recommended due to their small size, low cost, and low ESR. Select ceramic capacitors that maintain their capacitance over temperature and DC bias. Capacitors with X5R or X7R temperature characteristics generally perform well. See Table 1 for a list of recommended components. Using a larger value input capacitor helps to reduce input ripple (see the Input Ripple section).
Temperature Derating Function
The MAX8630 contains a derating function that automatically limits the LED current at high temperatures in accordance with the recommended derating curve of popular white LEDs. The derating function enables the safe usage of higher LED currents at room temperature, thus reducing the number of LEDs required to backlight the display. The derating circuit protects the LEDs from overheating at high PC board temperatures. The derating circuit limits the LED current by reducing the internal 600mV reference voltage above +40C at approximately -1.67%/C. The typical derating function characteristic is shown in the Typical Operating Characteristics.
PC Board Layout and Routing
The MAX8630_ is a high-frequency, switched-capacitor voltage regulator. For best circuit performance, use a solid ground plane and place CIN, COUT, C1, and C2 as close to the MAX8630_ as possible. See the MAX8630Z evaluation kit for an example layout.
Chip Information
PROCESS: BiCMOS
Table 1. Recommended Components
DESIGNATION CIN, COUT, C1, C2 D1-D5 VALUE 1F -- MANUFACTURER Taiyo Yuden TDK Nichia PART NUMBER JMK105 BJ105MV C1005X5R0J105M NSCW215T DESCRIPTION 1F 20%, 6.3V X5R ceramic capacitors (0402) 1F 20%, 6.3V X5R ceramic capacitors (0402) White LEDs
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9
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN MAX8630Y/MAX8630Z
Ordering Information (continued)
PART MAX8630YETD15-T MAX8630YETD18+T MAX8630YETD18-T MAX8630YETD20+T MAX8630YETD20-T MAX8630YETD25+T MAX8630YETD25-T MAX8630ZETD15+T MAX8630ZETD15-T MAX8630ZETD18+T MAX8630ZETD18-T MAX8630ZETD20+T MAX8630ZETD20-T MAX8630ZETD25+T MAX8630ZETD25-T PINPACKAGE 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) 14 TDFN (3mm x 3mm) TOP MARK AAS AAT AAT AAU AAU AAV AAV AAW AAW AAX AAX AAY AAY AAZ AAZ PKG CODE T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 T1433-2 PART MAX8630YETD15 MAX8630YETD18 MAX8630YETD20 MAX8630YETD25 MAX8630ZETD15 MAX8630ZETD18 MAX8630ZETD20 MAX8630ZETD25
Selector Guide
FULL-SCALE CURRENT (mA) 15 18 20 25 15 18 20 25 DIMMING INTERFACE Direct PWM Direct PWM Direct PWM Direct PWM Serial Pulse Serial Pulse Serial Pulse Serial Pulse
Note: All devices are specified to operate over the -40C to +85C operating temperature range. +Denotes a lead-free package.
10
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125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
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.)
MAX8630Y/MAX8630Z
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11
6, 8, &10L, DFN THIN.EPS
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN MAX8630Y/MAX8630Z
Package Information (continued)
(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.)
COMMON DIMENSIONS SYMBOL A D E A1 L k A2 MIN. 0.70 2.90 2.90 0.00 0.20 MAX. 0.80 3.10 3.10 0.05 0.40
PACKAGE VARIATIONS PKG. CODE T633-2 T833-2 T833-3 T1033-1 T1033-2 T1433-1 T1433-2 N 6 8 8 10 10 14 14 D2 1.500.10 1.500.10 1.500.10 1.500.10 1.500.10 1.700.10 1.700.10 E2 2.300.10 2.300.10 2.300.10 2.300.10 2.300.10 2.300.10 2.300.10 e 0.95 BSC 0.65 BSC 0.65 BSC 0.50 BSC 0.50 BSC 0.40 BSC 0.40 BSC JEDEC SPEC MO229 / WEEA MO229 / WEEC MO229 / WEEC MO229 / WEED-3 MO229 / WEED-3 ------b 0.400.05 0.300.05 0.300.05 0.250.05 0.250.05 0.200.05 0.200.05 [(N/2)-1] x e 1.90 REF 1.95 REF 1.95 REF 2.00 REF 2.00 REF 2.40 REF 2.40 REF
0.25 MIN. 0.20 REF.
Revision History
Pages changed at Rev 1: 1, 3, 6, 8-12
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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.

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