TPS92663-Q1 High-Brightness LED Matrix Manager for Automotive Headlight Systems | TI.com

TPS92663-Q1 (ACTIVE)

High-Brightness LED Matrix Manager for Automotive Headlight Systems

High-Brightness LED Matrix Manager for Automotive Headlight Systems - TPS92663-Q1
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Description

The TPS92663-Q1 LED matrix manager device enables fully dynamic adaptive lighting solutions by providing individual pixel-level LED control.

The device includes two sub-strings of three series-connected integrated switches for bypassing individual LEDs. The individual sub-strings allow the device to accept either single or multiple current sources. It also allows a parallel connection of two switches to bypass high-current LEDs.

A master microcontroller may be used to control and manage the TPS92663-Q1 devices via a multi-drop universal asynchronous receiver transmitter (UART) serial interface. The serial interface supports the use of CAN transceivers for a more robust physical layer. An application can use the TPS92663-Q1 device and the TPS92662-Q1 device on the same bus.

An on-device, 8 bit ADC with two multiplexed inputs can be used for system temperature compensation and used to measure a binning value which allows for LED binning and coding.

The internal charge pump rail supplies the gate drive voltage for the LED bypass switches. The low on-resistance (RDS(on)) of the bypass switch minimizes conduction loss and power dissipation.

The phase shift and pulse width for each individual LED in the string are programmable. The device uses an internal register to adjust the PWM frequency. Multiple devices can be synchronized. The switch transitions during PWM dimming operation have a programmable slew rate to mitigate EMI concerns.

The device features open LED protection with programmable threshold. The serial interface reports open LED and short LED faults.

Features

  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to 125°C, TA
    • Device HBM Classification Level: H1C
    • Device CDM Classification Level: C5
  • Input Voltage Range: 4.5 V to 60 V
  • Six Integrated Bypass Switches
    • Two Sub-Strings of Three Series Switches
    • 20 V (Maximum) Across Switch
    • 62 V (Maximum) Switch to GND
  • Multi-Drop UART Communication Interface
    • Up to 16 Addressable Devices
    • Integrates on same bus with the TPS92662
  • Compatible with CAN Physical Layer
    • Minimum Number of Wires in Cable Harness
  • 8-bit ADC with Two MUX Inputs
  • Crystal Oscillator Driver
  • Programmable 10-bit PWM Dimming
    • Individual Phase Shift and Pulse Width
    • Device-to-device Synchronization
  • LED Open and Short Detection and Protection

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Topology
Channels (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Operating Temperature Range (C)
Features
Applications
Package Group
Package Size: mm2:W x L (PKG)
Rating
TPS92663-Q1 TPS92662-Q1
Floating Switch     Floating Switch    
6     12    
4.5     4.5    
60     60    
0     0    
62     62    
-40 to 125     -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    
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    
Adaptive Headlamp
Daytime Running
Headlamp
Stop/Tail
Turn    
HTSSOP | 24     HTQFP | 48    
24HTSSOP: 50 mm2: 6.4 x 7.8 (HTSSOP | 24)     48HTQFP: 81 mm2: 9 x 9 (HTQFP | 48)    
Automotive     Automotive