Automotive Power Logic 16-Bit Shift Register LED Driver With Diagnostics

Automotive Power Logic 16-Bit Shift Register LED Driver With Diagnostics - TLC6C5816-Q1


There are various LED indicators in automotive applications. Some applications such as hybrid instrument clusters and E-shifters have safety requirements which must have LED fault diagnostics; other applications such as HVAC panels only have an LED on-off control, which does not require LED diagnostics. To cover both applications, the TLC6C5816-Q1 device implements a flexible LED diagnostics function. By writing to the registers, the output channels can be configured with LED diagnostics features or without LED diagnostics features.

The TLC6C5816-Q1 device is a 16-bit shift register LED driver designed to support automotive LED applications. A built-in LED open and LED short diagnostic mechanism provides enhanced safety protection. The device contains 16 channels with power DMOS transistor outputs. Eight of the channels support LED fault diagnostics by configuring corresponding registers, the device can drive 16 channels without diagnostics or 8 channels with diagnostics. The diagnostics channels DIAGn must connect to DRAINn to realize LED diagnostics. A command error fault implies that a channel is configured for LED diagnostics but a register write command has turned on the channel at the same time. The device provides a cyclic redundancy check to verify register values in the shift registers. In read-back mode, the device provides 6 bits of the CRC remainder. The MCU can read back the CRC remainder and check if the remainder is correct to determine whether the communication loop between MCU and device is good.


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125ºC Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H3A
    • Device CDM ESD Classification Level C6
  • 16 Channels With Power DMOS Transistor Outputs
    • Open-Drain Outputs up to 50 mA per Channel
    • Output Voltage Maximum Rating: 45 V
    • Optimized Slew Rate for Reducing EMI
  • Serial Interface and PWM Inputs
    • Shift Register Compatible With TPIC6C596, TLC6C598-Q1, TLC6C5912-Q1
    • LED Status Read-back
    • 2 PWM Inputs for Group Dimming
  • Diagnostics and Protection
    • Configurable LED Open and Short Diagnostics
    • Overtemperature Protection
    • Serial-Interface Communication-Error Detection
    • Open-Drain Error Feedback

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Parametrics Compare all products in Automotive LED Driver

Channels (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
LED Current Per Channel (mA)
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
TLC6C5816-Q1 TLC6C5912-Q1 TLC6C598-Q1
16    12    8   
3    3    3   
5.5    5.5    5.5   
0    0    0   
40    40    40   
0.8    0.6    0.4   
50    50    50   
-40 to 125    -40 to 125    -40 to 125   
Fault Detection
LED Open Detection
LED Short to Ground Detection
Thermal Error Flag
Thermal Shutdown   
Thermal Shutdown    Thermal Shutdown   
Tell-Tale    Tell-Tale    Tell-Tale   
28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP)    20SOIC: 132 mm2: 10.3 x 12.8(SOIC)
20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP)   
16SOIC: 59 mm2: 6 x 9.9(SOIC)
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)   
Automotive    Automotive    Automotive