TPS61161A White LED Driver with PWM Brightness Control in 2mm x 2mm WSON Package. Up to 10 LEDs in Series | TI.com

TPS61161A (ACTIVE)

White LED Driver with PWM Brightness Control in 2mm x 2mm WSON Package. Up to 10 LEDs in Series

 

Description

With a 40-V rated integrated switch FET, the TPS61160A/61A is a boost converter that drives LEDs in series. The boost converter runs at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use of small external components.

The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200 mV, as shown in the typical application. During the operation, the LED current can be controlled by a pulse width modulation (PWM) signal applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In PWM dimming mode, the TPS61160A/61A does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the TPS61160A/61A to prevent the output from exceeding the absolute maximum ratings during open LED conditions.

The TPS61160A/61A is available in a space-saving, 2-mm × 2-mm WSON package with thermal pad.

For all available packages, see the orderable addendum at the end of the data sheet.

Features

  • Input Voltage Range: 2.7 V to 18 V
  • 26-V Open LED Protection for TPS61160A
    38-V Open LED Protection for TPS61161A
  • 200mV Reference Voltage With ±2% Accuracy
  • PWM Interface for Brightness Control
  • Built-in Soft Start
  • Up to 90% Efficiency
  • 2-mm × 2-mm × 0.8-mm 6-Pin WSON Package With Thermal Pad

View more

Parametrics Compare all products in Backlight LED drivers

 
Channels (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switching Frequency (Max) (kHz)
Type
LED current per channel (mA)
LED (#)
Topology
Shutdown Current (Typ) (uA)
Peak efficiency (%)
LED configuration
Features
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
TPS61161A TPS61160 TPS61160A TPS61161 TPS61165
1     1     1     1     1    
2.7     2.7     2.7     2.7     3    
18     18     18     18     18    
2.7     2.7     2.7     2.7     3    
38     26     26     38     38    
600     600     600     600     1200    
Inductive     Inductive     Inductive     Inductive     Inductive    
20     20     20     20     400    
10     6     6     10     27    
Boost     Boost     Boost     Boost     Boost    
0.7     1     1     1     1    
90     90     90     90     90    
Series     Series     Series     Series     Parallel
Series    
EasyScale 1-Wire Interface
Load Disconnect During Shutdown    
EasyScale 1-Wire Interface
Load Disconnect During Shutdown    
EasyScale 1-Wire Interface
Load Disconnect During Shutdown    
EasyScale 1-Wire Interface
Load Disconnect During Shutdown    
EasyScale 1-Wire Interface
Load Disconnect During Shutdown    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
WSON | 6     WSON | 6     WSON | 6     WSON | 6     SOT-23 | 6
WSON | 6    
See datasheet (WSON)     See datasheet (WSON)     See datasheet (WSON)     See datasheet (WSON)     6SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 6)
See datasheet (WSON)