方案LED DisplayConstant Current DriverICN2038

ICN2038

Constant Current Driver

Description
The ICN2038 is a 16-channel constant current sink output LED driver. All 16-channels constant current can be set by a single external resistor, which provides users flexibility in controlling the light intensity of LEDs.
The ICN2038 exploits current precision controlling technologywhich makes error between ICs less than ±2.5%, and error between channels less than ±1.3%. At ICN2038 output stage16-regulated output ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of forward voltage(VF) variations.
ICN2038 contains two 16-bit shift registers and latches which convert serial input data into parallel output format. For integrated dual latch, ICN2038 could get higher refresh rate.
Features
• 16-channel constant current output
• 16-channel constant current output
• Output current setting range
        0.5~45mA×16@VDD=5V constant current output
        0.5~25mA×16@VDD=3.3Vconstant current output
• Current accuracy
        Between channel :< ±1.3%
        Between ICs :< ± 2.5%
• Fast response of output current,
        (min):40ns@VDD=5V
• ESD HBM PASS 8KV
• I/O: Schmitt trigger input
• Data transfer frequency:fMAX=30MHz(Max)
• Power supply voltage: VDD=3.35V
• OperatingTemperature: –40°C to +85°C
• Pre-Charge for Ghosting Reduction
• LED Protection
• Enhanced Circuit for Caterpillar Cancelling
• Low-Gray Scale Enhancement
• Integrated DualLatch for higher refresh rate

http://www.chiponeic.com/Upload/image/20161226/20161226194303_1035.jpg

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