Product Summary

The TPS61151DRCR is a high frequency boost converter with two regulated current outputs for driving WLEDs. Each current output can be individually programmed through external resistors. There is dedicated selection pin for each output, so the two outputs can be turned on separately or simultaneously. The output current can be reduced by a pulse width modulation (PWM) signal on the select pins or an analog voltage on the ISET pin, resulting in PWM dimming of the WLEDs. The TPS61151DRCR runs at 1.2 MHz fixed switching frequency to reduce output ripple and avoid audible noises associated with PFM control. The applications of the TPS61151DRCR include Sub and Main Display Backlight in Clam Shell Phones, Display and Keypad Backlight, Up to 14 WLED Driver.

Parametrics

TPS61151DRCR absolute maximum ratings: (1)Supply voltages on pin VIN(2): –0.3 to 7V; (2)Voltages on pins SEL1/2, ISET1/2(2): –0.3 to 7V; (3)Voltage on pin IOUT, SW, IFB1 and IFB2(2): 30V; (4)Continuous power dissipation See Dissipation Rating Table; (5)Operating junction temperature range: –40 to 150℃; (6)Storage temperature range: –65 to 150℃; (7)Lead Temperature (soldering, 10 sec): 260℃.

Features

TPS61151DRCR features: (1)2.5-V to 6-V Input Voltage Range; (2)Two Outputs Each up to 27V; (3)0.7A Integrated Switch; (4)Built-In Power Diode flexibility.; (5)1.2-MHz Fixed PWM Frequency; (6)Individually Programmable Output Current; (7)Input-to-Output Isolation; (8)Built-In Soft Start; (9)Overvoltage Protection; (10)Up to 83% Efficiency; (11)Up to 30 kHz PWM Dimming Frequency; (12)Available in a 10 Pin, 3×3 mm QFN Package.

Diagrams

TPS61151DRCR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TPS61151DRCR
TPS61151DRCR

Texas Instruments

LED Lighting Drivers Dual 700mA Switch 1.2MHz Boost Cnvrtr

Data Sheet

0-1: $1.72
1-25: $1.42
25-100: $1.28
100-250: $1.18
TPS61151DRCRG4
TPS61151DRCRG4

Texas Instruments

LED Lighting Drivers Dual 700mA Switch 1.2MHz Boost Cnvrtr

Data Sheet

0-2230: $0.93
2230-3000: $0.90
3000-6000: $0.86