LED Driver for Solar Applications
The new DM13G from Silicon Touch has been specially designed for Solar applications...
The DM13G is a 16-bit constant current sink LED Driver with error detection, specifically designed for LED display applications that utilize solar power for charging batteries.
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 register. The global current also can be further adjusted by 7-bit serial shift-in data.
Its built-in LED open/short detection, output channels short to GND detection and thermal alarm circuits help users detect LED failures, output shorts and overheating.
There are two methods to communicate the error messages to the system. One is through serial output data to indicate which channel has failed. The other is by means of dedicated alarm pin.
Features:
*Constant-current outputs: 5mA to 90mA adjustable by one external resistor
*Maximum output voltage: 17V
*Maximum clock frequency: 30MHz
*7-bit linear global brightness control
*Built-in LED open/short detection: Real-time detection or Smart detection
*Outputs short to GND detection: Smart detection
*Fast detecting response: 100ns (min.)
*Over temperature protection: Alarm (junction temperature > 130 C)
*Shutdown (junction temperature > 170 C)
*Sleep mode selection (sleep current : 20uA)
*Ghost image elimination
*In-rush current control
*Schmitt trigger input
*Power supply voltage: 3.0V to 5.5V
Applications:
*LED Variable Message Signs (VMS)
*Indoor/Outdoor LED Video Display
Packages:
*SSOP28, TSSOP28E, QFN32
Contact TRG Components for more information or to request samples.