TPS61193 Low-EMI, High-Performance 3-Channel LED Driver | TI.com

TPS61193 (ACTIVE)

Low-EMI, High-Performance 3-Channel LED Driver

 

Description

The TPS61193 is a high-efficiency, low-EMI, easy-to-use LED driver with flexibility to support a wide range of applications. It has three high-precision current sinks that can be combined for higher current capability.

The TPS61193 has an integrated DC-DC supporting both boost and SEPIC mode operation. The converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions. For EMI control the DC-DC converter supports spread spectrum for switching frequency and an external synchronization with dedicated pin.

The TPS61193 has wide input voltage range from 4.5 V to 40 V for robust support of different types of applications. The TPS61193 integrates extensive fault detection features. The device supports PWM brightness dimming ratio of 10 000:1 for 100-Hz input PWM frequency.

Features

  • Input Voltage Operating Range 4.5 V to 40 V
  • Three High-Precision Current Sinks
    • Current Matching 1% (Typical)
    • LED String Current up to 100 mA per Channel
    • Outputs can be Combined Externally for Higher Current Capability
  • High Dimming Ratio of 10 000:1 at 100 Hz
  • Integrated Boost/SEPIC for LED String Power
    • Output Voltage up to 45 V
    • Switching Frequency 300 kHz to 2.2 MHz
    • Switching Synchronization Input
    • Spread Spectrum for Lower EMI
  • Extensive Fault Detection Features
    • Fault Output
    • Input Voltage OVP, UVLO, and OCP
    • Open and Shorted LED Fault Detection
    • Thermal Shutdown
  • Minimum Number of External Components

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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)
TPS61193 TPS61165 TPS61194 TPS61195 TPS61196 TPS61500
3     1     4     8     6     1    
4.5     3     4.5     4.5     8     2.9    
40     18     40     21     30     18    
6     3     6     15     8     2.9    
45     38     45     45     120     38    
2200     1200     2200     1000     800     2200    
Inductive     Inductive     Inductive     Inductive     Inductive     Inductive    
100     400     100     30     200     400    
36     27     48     96     120     10    
Boost     Boost     Boost     Boost     Boost     Boost    
4.5     1     4.5     4     25     1.5    
92     90     92     94     96     93    
Parallel
Series    
Parallel
Series    
Parallel
Series    
Series     Series     Series    
Adjustable Switch Frequency
Integrated Switch
OVP
PWM Control    
EasyScale 1-Wire Interface
Load Disconnect During Shutdown    
Adjustable Switch Frequency
Integrated Switch
OVP
PWM Control    
Load Disconnect During Shutdown     OVP      
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
HTSSOP | 20     SOT-23 | 6
WSON | 6    
HTSSOP | 20     WQFN | 28     HTSSOP | 28     HTSSOP | 14    
20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)     6SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 6)
See datasheet (WSON)    
20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)     28WQFN: 16 mm2: 4 x 4 (WQFN | 28)     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     14HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 14)