Datasheet LT3492 (Analog Devices) - 22

LT3492
TYPICAL APPLICATION Triple Buck-Boost Mode 100mA
×
4 LED Driver
PVIN 10V TO 16V C1 2.2μF 100mA 4 LEDs 100mA 4 LEDs 100mA 4 LEDs L1 L2 L3 22μH 22μH 22μH
3000:1 PWM Dimming at 100Hz
PWM TG1 M1 TG2 M2 TG3 M3 5V/DIV 3.9M 3.9M 3.9M ISN1 ISN2 ISN3 I OVP1 OVP2 OVP3 LED 1Ω 1Ω 1Ω 0.1A/DIV 100k 100k 100k ISP1 ISP2 ISP3 IL D1 D2 D3 0.5A/DIV C2 C3 C4 C5 C6 C7 1μs/DIV 3492 TA06b 0.1μF 1μF 0.1μF 1μF 0.1μF 1μF PV PV IN IN PVIN SW1 SW2 SW3 TG1-3 ISP1-3 OVP1-3 ISN1-3 V LT3492 C1-3 VIN VIN V 5V TO 16V REF 18.2k C8 PWM1-3 CTRL1-3 1μF 2.2nF SHDN 150k 3492 TA06 GND FADJ 49.9k C1: MURATA GRM31MR71E225KA93 D1-D3: ROHM RB160M-60 C2, C4, C6: MURATA GRM21BR71H104KA01B L1-L3: TDK VLF5014AT-220MR62 1.3MHz C3, C5, C7: MURATA GRM31MR71H105KA88 M1-M3: ZETEX ZXMP6A13F C8: MURATA GRM31MR71E105KA93
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT3496 Triple 0.75A, 2.1MHz, 45V LED Driver VIN: 3V to 30V, VOUT(MAX) = 45V, Dimming = 3000:1, ISD < 1μA, 4mm × 5mm QFN and TSSOP16E Packages LT3474 36V, 1A (ILED), 2MHz, Step-Down LED Driver VIN: 4V to 36V, VOUT(MAX) = 13.5V, True Color PWM Dimming = 400:1, ISD < 1μA, TSSOP16E Package LT3475 Dual 1.5A (ILED), 36V, 2MHz Step-Down LED Driver VIN: 4V to 36V, VOUT(MAX) = 13.5V, True Color PWM Dimming = 3000:1, ISD < 1μA, TSSOP20E Package LT3476 Quad Output 1.5A, 36V, 2MHz High Current LED Driver VIN: 2.8V to 16V, VOUT(MAX) = 36V, True Color PWM Dimming = 1000:1, with 1000:1 Dimming ISD < 10μA, 5mm × 7mm QFN Package LT3477 3A, 42V, 3MHz Boost, Buck-Boost, Buck LED Driver VIN: 2.5V to 25V, VOUT(MAX) = 40V, Dimming = Analog/PWM, ISD < 1μA, QFN and TSSOP20E Packages LT3478/LT3478-1 4.5A, 42V, 2.5MHz High Current LED Driver with VIN: 2.8V to 36V, VOUT(MAX) = 42V, True Color PWM Dimming = 3000:1, 3000:1 Dimming ISD < 3μA, TSSOP16E Package LT3486 Dual 1.3A, 2MHz High Current LED Driver VIN: 2.5V to 24V, VOUT(MAX) = 36V, True Color PWM Dimming = 1000:1, ISD < 1μA, 5mm × 3mm DFN and TSSOP16E Packages LT3517 1.5A, 2.5MHz, 45V LED Driver VIN: 3V to 30V, VOUT(MAX) = 45V, Dimming = 3000:1, ISD < 1μA, 4mm × 4mm QFN and TSSOP16E Packages LT3518 2.3A, 2.5MHz, 45V LED Driver VIN: 3V to 30V, VOUT(MAX) = 45V, Dimming = 3000:1, ISD < 1μA, 4mm × 4mm QFN and TSSOP16E Packages LT3755/LT3755-1 40VIN, 75VOUT, Full Featured LED Controller VIN: 4.5V to 40V, VOUT(MAX) = 75V, True Color PWM Dimming = 3000:1, ISD < 1μA, 3mm × 3mm QFN-16 and MS16E Packages LT3756-1 100V High Current LED Controller VIN: 6V to 100V, VOUT(MAX) = 100V, True Color PWM Dimming = 3000:1, ISD < 1μA, 3mm × 3mm QFN-16 and MS16E Packages LTC®3783 High Current LED Controller VIN: 3V to 36V, VOUT(MAX) = Ext FET, True Color PWM Dimming = 3000:1, ISD < 20μA, 5mm × 4mm QFN10 and TSSOP16E Packages 3492fa 22 Linear Technology Corporation LT 0410 REV A • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2009