TPS92661-Q1 High-brightness LED matrix manager for automotive headlight systems | TI.com

TPS92661-Q1 (ACTIVE) High-brightness LED matrix manager for automotive headlight systems

 

Recommended alternative parts

  • TPS92662-Q1  -  LED matix manager which can control up to 370 pixels with more flexilble switch configurations and higher switch voltage (20V)

Electronic Products Magazine 2014 Product of the Year Award

Description

The TPS92661 device is a compact, highly-integrated solution for shunt FET dimming for large arrays of high-brightness LEDs in applications such as automotive headlights.

The TPS92661 device includes a 12-switch series array for bypassing individual LEDs in the string and a serial communication interface for control and management by a master microcontroller.

An on-board charge pump rail that can float up to 67 V above GND provides the LED bypass switch gate drive.The low on-resistance (RDS(on)) of the bypass switch minimizes conduction loss and power dissipation.

The TPS92661 device contains a multi-drop universal asynchronous receiver transmitter (UART) for serial communication. The turn-on and turn-off times are programmable for each individual LED in the string. The PWM frequency is adjustable via an internal register and multiple devices can be synchronized to the same frequency and phase.

The TPS92661 device features open LED protection as well as open and short LED fault reporting via the serial interface.

The TQFP package features a feed-through topology to enable easy routing of

Features

  • 12 Series LED Bypass Switches
  • Multi-Drop UART Communication Interface
  • Programmable 10-bit PWM Dimming
    • Individual Turn-on and Turn-off Times
    • Inherent Phase Shift Capability
    • Device-to-Device Synchronization
  • LED Open/Short Detection and Protection
    • Fault Reporting
  • AEC-Q100 Grade 1
  • Thermally Enhanced Package
    • 48-pin, TQFP, Exposed Pad Package

Parametrics

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Part number Order 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) Operating temperature range (C) Features Applications Package Group Package size: mm2:W x L (PKG) Rating
TPS92661-Q1 Order now Floating Switch     12     4.5     5.5     0     60     1     1     1000     -40 to 125     Integrated Switch     Adaptive Headlamp     HTQFP | 48     48HTQFP: 81 mm2: 9 x 9 (HTQFP | 48)     Automotive    
TPS92662-Q1 Order now Floating Switch     12     4.5     60     0     62           -40 to 125     Fault Detection
Fault Diagnostic
Hybrid Dimming/Phase Shift
I2C Control
Integrated Switch
LED Open Detection
LED Shorted Detection
Precision Dimming Control
Synchronization Pin
Temperature Compensation    
Adaptive Headlamp
Daytime Running
Headlamp
Stop/Tail
Turn    
HTQFP | 48     48HTQFP: 81 mm2: 9 x 9 (HTQFP | 48)     Automotive    
TPS92663-Q1 Order now Floating Switch     6     4.5     60     0     62           -40 to 125     Fault Detection
Fault Diagnostic
Hybrid Dimming/Phase Shift
Integrated Switch
LED Open Detection
LED Shorted Detection
Precision Dimming Control
Synchronization Pin
Temperature Compensation    
Adaptive Headlamp
Daytime Running
Headlamp
Stop/Tail
Turn    
HTSSOP | 24     24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)     Automotive