TPS61160 White LED Driver with Digital and PWM Brightness Control in 2mm x 2mm Package | TI.com

TPS61160 (ACTIVE)

White LED Driver with Digital and PWM Brightness Control in 2mm x 2mm Package

 

Description

With a 40-V rated integrated switch FET, the TPS61160 and TPS61161 are boost converters that drive LEDs in series. The boost converters run at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow 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 . During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale protocol) through the CTRL pin. Alternatively, a pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61160 and TPS61161 do not burst the LED current; therefore, they do not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disable the TPS61160 and/or TPS61161 to prevent the output voltage from exceeding the device's absolute maximum voltage ratings during open LED conditions.

The TPS61160 and TPS61161 are 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

  • 2.7-V to 18-V Input Voltage Range
  • 26-V Open LED Protection (TPS61160)
  • 38-V Open LED Protection (TPS61161)
  • 200-mV Reference Voltage With ±2% Accuracy
  • Flexible Digital and PWM Brightness Control
  • Built-in Soft Start
  • Up to 90% Efficiency

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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)
TPS61160 TPS61160A TPS61161 TPS61161A 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    
26     26     38     38     38    
600     600     600     600     1200    
Inductive     Inductive     Inductive     Inductive     Inductive    
20     20     20     20     400    
6     6     10     10     27    
Boost     Boost     Boost     Boost     Boost    
1     1     1     0.7     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)