TPS61500 High Brightness LED Driver with Integrated 3-A, 40-V Power Switch | TI.com

TPS61500 (ACTIVE)

High Brightness LED Driver with Integrated 3-A, 40-V Power Switch

 

Description

The TPS61500 is a monolithic switching regulator with integrated 3-A, 40-V power switch. It is an ideal driver for high brightness 1-W or 3-W LED. The device has a wide input voltage range to support application with input voltage from multi-cell batteries or regulated 5-V or 12-V power rails.

The LED current is set with an external sensor resistor R3, and the feedback voltage that is regulated to 200 mV by current mode PWM (pulse width modulation) control loop, as shown in Typical Application Circuit. The device supports analog and pure PWM dimming methods for LED brightness control. Connecting a capacitor to the DIMC pin configures the device to be used for analog dimming, and the LED current varies proportional to the duty cycle of an external PWM signal. Floating the DIMC pin configures the device for pure PWM dimming with the average LED current being the PWM signal’s duty cycle times a set LED current.

The device features a programmable soft-start function to limit inrush current during start-up, and it has other built-in protection features, such as pulse-by-pulse overcurrent limit, overvoltage protection, and thermal shutdown. The TPS61500 is available in 14-pin HTSSOP package with PowerPAD.

Features

  • 2.9-V to 18-V Input Voltage Range
  • 3-A, 40-V Internal Power Switch
    • Four 3-W LEDs From 5-V Input
    • Eight 3-W LEDs From 12-V Input
  • High-Efficiency Power Conversion: Up to 93%
  • Frequency Set by External Resistor: 200 kHz to 2.2 MHz
  • User-Defined Soft Start Into Full Load
  • Programmable Overvoltage Protection
  • Analog and Pure PWM Brightness Dimming
  • 14-Pin HTSSOP Package With PowerPAD™

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