Product Descriptions

The  DM134、DM135、DM136  are  constant  current  drivers  specifically  designed  for  LED  display applications. The value of constant current can be varied using an external resistor. The devices include a 16-bit shift register, latches, and constant current drivers on a single Silicon CMOS chip.

Product Features

5V CMOS Compatible Input

Maximum Clock Frequency:  25MHz (Cascade Operation)

Maximum Output Voltage:     17V

Package:  DIP24, SOP24, SSOP24,  QFN32, TSSOP24-exposedPAD(DM135)

Package and Pin Layout:  Pin layout and functionality are similar to those of the ST2221C.(Each characteristic value is different.)

Constant Current Matching:    (Ta = 25°C、VDD = 5.0V) o-Chip: ± 10.0 percent

Bit-to-Bit:

DM134: ± 4.0 percent @ IOUT = 30 ~ 90mA,± 6.0 percent @ IOUT = 20 ~ 30mA  

DM135: ± 4.0 percent @ IOUT = 10 ~ 50mA,± 6.0 percent @ IOUT = 5 ~ 10mA  

DM135: ± 4.0 percent @ IOUT = 3 ~ 15mA

Specifications

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