STP04CM05 Datasheet, PDF (1/24 Pages) STMicroelectronics – 4-bit constant current power-LED sink driver

STP04CM05
4-bit constant current power-LED sink driver
Features
■ 4 constant current output channels
■ Adjustable output current through one external
resistor
■ Can be driven by a 3.3 V microcontroller
■ Serial data IN/parallel data OUT
■ Output current: 80-400 mA
■ 20 V of output driving capability
■ 30 MHz clock frequency
■ UVLO (under voltage lockout) and
POR (power ON reset)
■ TSD, thermal shutdown, output off when
junction temperature exceeds limit
■ Operating free-air temperature range -40 to
125 ºC
■ ESD protection 2.5 kV HBM, 200 V MM
■ Available in high thermal TSSOP exposed pad.
Description
The STP04CM05 is a high-power LED driver and
4-bit shift register designed for Power-LED
applications.
The STP04CM05 contains a 4-bit serial IN,
parallel OUT shift register that feeds a 4-bit
D-type storage register. In the output stage, four
regulated current sources were designed to
provide 80-400 mA constant current to drive high
power LEDs.
Dip-14
SO-14
TSSOP16
(Exposed pad)
The STP04CM05 guarantees 20 V output driving
capability, allowing users to connect more LEDs in
series. The high clock frequency, 30 MHz, also
satisfies the system requirements which include
high volume data transmission.
The STP04CM05 is well suited for very high
brightness displays and special lighting
applications.
The STP04CM05 is offered in DIP-14, SO-14 and
TSSOP16 exposed pad packages.
Table 1. Device summary
Order codes
Package
STP04CM05B1R
DIP-14
STP04CM05MTR
STP04CM05XTTR
SO-14 (tape and reel)
TSSOP16 exposed-pad (tape and reel)
Packaging
25 parts per tube
2500 parts per reel
2500 parts per reel
June 2008
Rev 4
1/24
www.st.com
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