ISL97698 datasheet(8/21 Pages) RENESAS

Part #	ISL97698

Description	High Efficiency 2-Channel White LED Driver for Smartphone Backlighting

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Manufacturer	RENESAS [Renesas Technology Corp]

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ISL97698

FN8417 Rev.1.00

Page 8 of 21

Sep 7, 2017

FIGURE 14. START-UP WAVEFORMS (100% BRIGHTNESS)

FIGURE 15. START-UP WAVEFORMS (50% BRIGHTNESS)

FIGURE 16. SHUTDOWN WAVEFORMS (100% BRIGHTNESS)

Typical Performance Curves T

A = +25°C, VIN = VIN_IO = EN = 3.7V, L = TDK VLF302510MT-10uH,

COUT = 3.3µF/25V, fSW = 850kHz, ILED = 25mA/string, 2P6S Configuration, default register settings, unless otherwise noted. (Continued)

VIN = 3.7V, 2P6S, PWMI DUTY CYCLE = 100%

VOUT = 10V/DIV

PWMI = 5V/DIV

CH0 Current = 20mA/DIV

Inductor Current = 200mA/DIV

Time = 4ms/DIV

VOUT = 10V/DIV

CH0 Current = 20mA/DIV

Time = 2ms/DIV

VIN = 3.7V, 2P6S, PWMI Duty Cycle = 50%

PWMI = 5V/DIV

Inductor Current = 200mA/DIV

VIN = 3.7V, 2P6S, PWMI Duty Cycle = 100%

VOUT = 10V/DIV

CH0 Current = 20mA/DIV

Time = 1ms/DIV

Inductor Current = 200mA/DIV

PWMI = 5V/DIV

VOUT = 10V/DIV

CH0 Current = 20mA/DIV

Time = 1ms/DIV

VIN = 3.7V, 2P6S, PWMI Duty Cycle = 50%

PWMI = 5V/DIV

Inductor Current = 200mA/DIV

FIGURE 17. SHUTDOWN WAVEFORMS (50% BRIGHTNESS)

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