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TLC59291

Texas Instruments
Part Number TLC59291
Manufacturer Texas Instruments
Description Constant-Current LED Driver
Published Oct 1, 2019
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TLC59291 SLVSA96A – SEPTEMBER ...
Datasheet PDF File TLC59291 PDF File

TLC59291
TLC59291

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TLC59291 SLVSA96A – SEPTEMBER 2015 – REVISED MARCH 2016 TLC59291 8/16-Channel, Constant Current LED Driver with 7-bit Brightness Control Low Quiescent Current and Full Self Diagnosis for LED Lamp 1 Features •1 8/16 Constant-Current Sink Output Channels with On/Off Control • Current Capability: – 1 - 40 mA (VCC ≤ 3.
6 V) – 1 - 50 mA (VCC > 3.
6 V) • Global Brightness Control: 7-Bit (128 Steps) • Power-Supply Voltage Range: 3 V to 5.
5 V • LED Power-Supply Voltage: Up to 10 V • Constant-Current Accuracy: – Channel-to-Channel = ±3% (Typical) – Device-to-Device = ±2% (Typical) • Low Quiescent Current • SOUT can be Configured for 8-Channel or 16Channel Output • LED Open Detection (LOD)/LED Short Detection (LSD) with Invisible Detection Mode (IDM) • Output Leakage Detection (OLD) Detects 3 µA Leak • Pre-Thermal Warning (PTW) • Thermal Shutdown (TSD) • Current Reference Terminal Short Flag (ISF) • Power-Save Mode with 10-µA Consumption • Undervoltage Lockout Sets the Default Data • 2-ns Delayed Switching Between Each Channel Minimizes Inrush Current • Operating Temperature: –40°C to 85°C 2 Applications • Industry LED Indicator • Illumination • LED Video Display 3 Description The TLC59291 is a 8/16-channel constant current sink LED driver.
Each channel can be turned on-off by writing data to an internal register.
The constant current value of all 16 channels is set by a single external resistor and 128 steps for the global brightness control (BC).
The TLC59291 has six type error flags: LED open detection (LOD), LED short detection (LSD), output leak detection (OLD), reference terminal short detection (ISF), Pre thermal warning (PTW) and thermal error flag (TEF).
In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off.
The error detection results can be read via a serial interface port.
The TLC59291 has low quie...


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