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TLC6C5716QDAPRQ1

Automotive 16 channel Full diagnostics constant current RGB LED driver

Manufacturer: TI
Mfr.Part #: TLC6C5716QDAPRQ1
Datasheet: TLC6C5716QDAPRQ1 Datasheet (PDF)
Package/Case: HTSSOP-38
Product Type: Optoelectronics
RoHS:
Lifecycle: Active
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TLC6C5716QDAPRQ1 General Description

There are automotive applications for indicators and for LCD local-dimming backlighting. For these applications, more persons think multi-channel constant-current LED drivers are necessary. The requirement is to get the same intensity and color temperature of LEDs. For system-level safety, it is necessary that the LED drivers can sense faults.

The TLC6C5716-Q1 device is an automotive 16-channel constant-current RGB LED driver that can do tests on the LEDs. The TLC6C5716-Q1 device supplies a maximum of 50-mA output current set by an external resistor. The device has a 7-bit dot correction with two ranges for each output. The device also has an 8-bit intensity control for the outputs of each color group.

A 12-,10-, or 8-bit grayscale control adjusts the intensity of each output. The device has circuits that sense faults in the system, including LED faults, adjacent-pin short faults, reference-resistor faults, and more. A slew rate control has 2 positions for adjustment to get the largest decrease in system noise. There is an interval between the changes of output level from one LED group to a different one. This interval helps to decrease the starting electrical current. The SDI and SDO pins let more than one device be connected in series for control through 1 serial interface.

Key Features

AEC-Q100 Qualified for Automotive Applications
- Device Temperature Grade 1: –40°C to 125°C, T_A
16 Constant-Current-Sink Output Channels
- 50-mA Maximum Output Current
- 8-V Maximum Output Voltage
- Two Output Groups: OUTRn, OUTBn
Output Current Adjustment
- 7-Bit Dot Correction (DC) for Each Channel
- 8-Bit Brightness Control (BC) for Each Group
Integrated PWM Grayscale Generator
- PWM Dimming for Each Individual Channel
- Adjustable Global Grayscale Mode: 12-Bit, 10-Bit, 8-Bit
Protection and Diagnostics
- LED-Open Detection (LOD), LED-Short Detection (LSD), Output Short-to-GND Detection (OSD)
- Adjacent-Pin Short (APS) Detection
- Pre-Thermal Warning (PTW), Thermal Shutdown (TSD)
- IREF Resistor Open- (IOF) and Short-Detection (ISF) and -Protection
- Negate Bit Toggle for GCLK Error Detect and LOD_LSD Register Error Check
- LOD_LSD Circuit Self-Test
Programmable Output Slew Rate
Output Channel Group Delay
Serial Data Interface

Specifications

Number of channels	16	Topology	Current Sink
Rating	Automotive	Operating temperature range (°C)	-40 to 125
Vin (min) (V)	3	Vin (max) (V)	5.5
Vout (min) (V)	0	Vout (max) (V)	7
Iout (max) (A)	0.8	Features	Adjacent-Pin Short Detection, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, LED Shorted Detection, LED Weak Supply Diagnostics, Reference Resistor Open or Short Detection, SPI Register Lock for Content Protection, Thermal Prewarning and Shutdown