PT16940
DESCRIPTION
The PT16940 is a serial-in parallel-out controlled LED driver with 35V output voltage rating. With the input of 3-line serial data, it turns the 12ch open drain output on/off. Due to its pact size, it is optimal for small space.
FEATURES
- Open Drain Output.
- 3-line Serial Control + Enable Signal.
- Cascade Connection patible.
- TSSOP-20 Package.
- Internal 12ch Power Transistor.
- Output Slew Rate Typical 20V/μs
(for Low EMC Noise)
BLOCK DIAGRAM
SERIN
SEROUT
RST_B
LATCH OEN_B
Latch & Logic Shift Register
PT16940 Serial-In Parallel-Out 12CH LED Driver with 3-Line Serial Interface
KEY SPECIFICATIONS
- Input voltage range:
3.0V to 5.5V
- Output voltage range:
35V (Max.)
- DC Output Current (per CH):
50m A(Max.)
- Output ON Resistance:
6Ω(Typ.)
- Standby current:
0μA (Typ.)
- Operating temperature range: -40℃ to +105℃
APPLICATION
- For indicator of Cluster Panel
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11
Figure 1. Block Diagram
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