DM13C
DM13C is 16-Bit Constant Current LED Driver manufactured by Siti.
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: 5m A to 90m A 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 patible to conventional LED drivers (ST2221C, DM134/5/6)
- Power supply voltage: 3.3V to 5.5V
- Bit-to-bit skew : ±3% @ 25m A~90m A Chip-to-chip skew : ±6% @ 25m A~90m A
±6% @ 5m A~25m A
±10% @ 5m A~25m A
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)
16-bit Constant Current LED Driver with Error Detection
Version:A.006
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Block Diagram
LED O/S Detection Selector
OUT 0
OUT 15
VCC GND
LED Open / Short Detector
REXT
Temperature Sensor Voltage Reference
16-channel Constant Current Driver
EN 16
LAT 16 bit Latch Register
16 bit Shift...
