16-bit Constant Current LED Driver with Error Detection

Version:A.006

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DM13C

DM13C

16-bit Constant Current LED Driver

with Error Detection

General Description

DM13C is a constant-current sink driver specifically designed for LED display applications.

The device incorporates shift registers, data latches, and constant current circuitry on the silicon

CMOS chip. The maximum output current value of all 16 channels is adjustable by a single external

resistor. Its built-in open/short detection circuits help users detect LED failures. System retrieve the

error messages to indicate which channel has failure by serial output data. The thermal shutdown

function provides the over temperature protection.

Features

 Constant-current outputs: 5mA to 90mA adjustable by one external resistor

 Maximum output voltage: 17V

 Maximum clock frequency: 25MHz

 Built-in real-time LED open/short detection

 Fast detecting response: 0.1us (min.)

 Over temperature protection: thermal shutdown (junction temperature > 180°C)

 Package and pin assignment compatible to conventional LED drivers (ST2221C, DM134/5/6)

 Power supply voltage: 3.3V to 5.5V

 Bit-to-bit skew : ±3% @ 25mA~90mA

Chip-to-chip skew :

±6% @ 25mA~90mA

±6% @

5mA~25mA

±10% @

5mA~25mA

Applications

 Indoor/Outdoor LED Video Display

 LED Variable Message Signs (VMS) System

Package Types

 DIP24, SOP24, SOP24B, SSOP24, TSSOP24 (with exposed pad), QFN32 (with exposed pad)