TPS61165-Q1 Automotive High Brightness White LED Driver | TI.com

TPS61165-Q1 (ACTIVE)

Automotive High Brightness White LED Driver

 

Description

With a 40-V rated integrated switch FET, the TPS61165-Q1 device is a boost converter that drives LEDs in series. The boost converter runs at a 1.2-MHz fixed switching frequency with 1.2-A switch current limit, and allows for the use of a high brightness LED in general lighting.

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 section. During the operation, the LED current can be controlled using the 1-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 TPS61165-Q1 device does not burst the LED current; therefore, the device does not generate audible noises on the output capacitor. For maximum protection, the TPS61165-Q1 device features integrated open LED protection that disables it to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.

The TPS61165-Q1 device is available in a SOT-23 package.

Features

  • Qualified for Automotive Applications
  • 40-V Maximum Breakdown Voltage of Internal
    MOSFET
  • 38-V Open LED Protection
  • 200-mV Reference Voltage With 2% Accuracy
  • 1.2-A Switch FET With 1.2-MHz Switching
    Frequency
  • Flexible 1-Wire Digital and PWM Brightness
    Control
  • Built-in Soft Start
  • Up to 90% Efficiency
  • SOT-23 Package

View more

Parametrics Compare all products in Automotive LED drivers

 
Topology
Channels (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Iq (Typ) (mA)
LED current per channel (mA)
Switching Frequency (Max) (kHz)
Operating temperature range (C)
Features
Applications
Package Group
Package size: mm2:W x L (PKG)
Rating
TPS61165-Q1 LP8861-Q1 TPS61161-Q1 TPS61194-Q1 TPS61196-Q1
Boost     Boost
Sepic    
Boost     Boost
Sepic    
Boost    
1     4     1     4     6    
3     4.5     2.7     4.5     8    
18     40     18     40     30    
3     7     2.7     6     120    
38     40     38     40     120    
0.4     0.4     0.02     0.4     0.2    
1.5     5     1.5     5     2    
100     100     20     100     200    
1200     2200     600     2200     800    
-40 to 105     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
Load Disconnect During Shutdown
Synchronous Rectification    
Adjustable Switch Frequency
Boost Sync
Fault Detection
Power-Line FET
Sepic Sync
Spread Spectrum
Temperature Compensation    
Load Disconnect During Shutdown
Synchronous Rectification    
Boost Sync
Spread Spectrum    
Adjustable Switch Frequency    
Backlight     Backlight
Dome
Foot Well    
Backlight     Backlight     Backlight    
SOT-23 | 6     HTSSOP | 20     WSON | 6     HTSSOP | 20     HTSSOP | 28    
6SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 6)     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)     See datasheet (WSON)     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)    
Automotive     Automotive     Automotive     Automotive     Automotive