MAX8831EWE+T Maxim Integrated Products, MAX8831EWE+T Datasheet
MAX8831EWE+T
Specifications of MAX8831EWE+T
Related parts for MAX8831EWE+T
MAX8831EWE+T Summary of contents
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... Open/Short LED and Open-Circuit Diode Detection o Thermal-Shutdown and Output Overvoltage Protection o Ultra-Low 0.1µA Shutdown Current o Tiny 2mm x 2mm, 16-Bump WLP Package PART Applications MAX8831EWE+T + Denotes a lead(Pb)-free/RoHS-compliant package Tape and reel. Features Ordering Information TEMP RANGE PIN-PACKAGE 16 WLP -40°C to +85°C ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP ABSOLUTE MAXIMUM RATINGS IN to GND ..............................................................-0.3V to +6. COMP to GND.....................................-0. SDA, SCL to GND.......................................-0. OUT, LX, ...
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High-Efficiency, White LED Step-Up Converter with I ELECTRICAL CHARACTERISTICS (continued 3.6V 0V 1.8V GND PGND DD PARAMETER LX Leakage Current V IN OSCILLATOR Operating Frequency Maximum Duty Cycle V LED1 ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP INTERFACE TIMING CHARACTERISTICS (V = 1.6V to 5.5V -40°C to +85°C, unless otherwise noted.) (Note PARAMETER SYMBOL ...
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High-Efficiency, White LED Step-Up Converter with 3.6V 1.8V 1µ OUT 5mA, unless otherwise noted.) LED3 LED4 LED5 CONVERTER EFFICIENCY vs. INPUT VOLTAGE (LED1 ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP (V = 3.6V 1.8V 1µ OUT 5mA, unless otherwise noted.) LED3 ...
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High-Efficiency, White LED Step-Up Converter with 3.6V 1.8V 1µ OUT 5mA, unless otherwise noted.) LED3 LED4 LED5 LED1 RAMP-UP I LED1 RAMP-UP TIMES ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP PIN NAME 25mA LED Current Regulator. Connect LED1 to the cathode of the LED1 diode string. LED1 is high A1 LED1 impedance in shutdown. Analog ...
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High-Efficiency, White LED Step-Up Converter with I IN UVLO AND BIAS GND COMP INTERFACE SDA SCL MAX8831 Figure 1. MAX8831 Functional Diagram _______________________________________________________________________________________ 2 C Interface in 2mm x 2mm WLP OSC PWM LOGIC REF ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP The other three regulators (LED3, LED4, LED5) are suit- able for keyboard backlight functions or for driving sig- nal indicators, and are programmable up to ...
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High-Efficiency, White LED Step-Up Converter with I Table 1. LED1, LED2 Programmable Current Levels and Register Values ILED_CNTRL I (mA) LED_ REGISTER VALUE 0x00 0.05 0x01 0.1 0x02 0.2 0x03 0.25 0x04 0.35 0x05 0.45 0x06 0.55 0x07 0.65 0x08 ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP Table 1. LED1, LED2 Programmable Current Levels and Register Values (continued) ILED_CNTRL I (mA) LED_ REGISTER VALUE 0x26 5.25 0x27 5.45 0x28 5.6 0x29 5.8 ...
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High-Efficiency, White LED Step-Up Converter with I Table 2. LED3, LED4, and LED5 Programmable Current Levels and Register Values ILED_CNTRL ILED_CNTRL REGISTER I (mA) REGISTER LED_ VALUE VALUE 0x00 0.05 0x10 0x01 0.1 0x11 0x02 0.15 0x12 0x03 0.20 0x13 ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP ENABLE BIT CLEARED FOR FAULTED LED_ STRING AND STAT1 REGISTER IS UPDATED WITH FAULT CONDITION. ENABLE BIT TSD OR OVP FAULT CLEARED FOR ALL LED_, ...
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High-Efficiency, White LED Step-Up Converter with I SDA t SU,DAT t LOW SCL t HIGH t HD,STA START CONDITION 2 Figure Interface Timing Diagram SDA SCL S START CONDITION 2 Figure START and STOP ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP SDA SCL DATA LINE STABLE, CHANGE OF DATA DATA IS VALID IS ALLOWED 2 Figure Bit Transfer 1 0 SDA MSB SCL ...
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High-Efficiency, White LED Step-Up Converter with I 7-BIT SLAVE S ADDRESS LAST DATA BYTE 2 Figure 11 Multiple-Byte Write 7-BIT SLAVE S ADDRESS DATA BYTE 2 Figure 12 Single-Byte Read 7-BIT SLAVE S ADDRESS FIRST DATA ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP LED_ current regulator. Write the LED#_EN bit to disable that LED_ current regulator. Overvoltage, open Schottky diode, and thermal-shutdown faults automati- cally ...
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High-Efficiency, White LED Step-Up Converter with I The typical value for the input capacitor is 1µF, and the typical value for the output capacitor is 1µF. Higher value capacitors can reduce input and output ripple, but at the expense of ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP Table 3. MAX8831 Register Map COMMAND/ REGISTER ADDRESS BYTE (HEX) ON/OFF_CNTL 0x00 LED1_RAMP_CNTL 0x03 LED2_RAMP_CNTL 0x04 LED3_RAMP_CNTL 0x05 LED4_RAMP_CNTL 0x06 LED5_RAMP_CNTL 0x07 ILED1_CNTL 0x0B ILED2_CNTL ...
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High-Efficiency, White LED Step-Up Converter with I Table 4. ON/OFF_CNTL Register (Address 0x00) BIT NAME B7 (MSB) — Reserved for future use B6 — Reserved for future use B5 — Reserved for future use 0 = Disable LED5 current regulator ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP Table 6. ILED#_CNTL Registers for LED1, LED2 (Addresses: 0x0B, 0x0C) BIT NAME DESCRIPTION B7 (MSB) — Reserved for future use Programs LED# ...
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High-Efficiency, White LED Step-Up Converter with I Table 9. BOOST_CNTL Register (Address: 0x1D) BIT NAME B7 (MSB) — Reserved for future use B6 — Reserved for future use B5 — Reserved for future use 0 = LED5 is powered fr ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP Table 11. STAT2 Register (Address 0x2E) BIT NAME DESCRIPTION B7 (MSB) Reserved for future use B6 Reserved for future use B5 Reserved for future use ...
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High-Efficiency, White LED Step-Up Converter with 10μH 2.7V TO 5.5V C1 1μ SCL SDA 1.6V TO 5.5V C3 0.1μF COMP C4 0.22μF Figure 15. MAX8831 Applications Circuit ______________________________________________________________________________________ 2 C ...
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High-Efficiency, White LED Step-Up Converter 2 with I C Interface in 2mm x 2mm WLP VIN 10μH 2.7V TO 5.5V 1μ 1.6V TO 5.5V 0.1μF 0.22μF 26 ______________________________________________________________________________________ V OUT UP TO 28V LX OUT LX 1μF MAX8831 ...
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High-Efficiency, White LED Step-Up Converter with I Pin Configuration TOP VIEW (BUMPS ON BOTTOM MAX8831 LED1 GND LED3 LED2 LED4 LED5 SDA PGND ...
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... 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. 28 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products ...