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| 型號(hào)： | U429B-FP |
| 英文描述： | Driver For IR Transmitter Diodes (Current Sink) |
| 中文描述： | 驅(qū)動(dòng)紅外發(fā)射二極管（電流水槽） |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大小： | 64K |
| 代理商： | U429B-FP |
U429B-FP
TELEFUNKEN Semiconductors
Rev. A1, 27-Feb-96
1 (4)
Driver For IR Transmitter Diodes (Current Sink)
Technology:
Bipolar
Features
Constant current for IR
signal 320 mA
Undervoltage control with indicator driver
Constant current output for control LED 100 mA
Current stabilisation starts at V
CE
= 1 V
Control voltage V
4
= 2 to 13.2 V
Minimum driver current I
4
= 0.4 mA
Additional switching transistor I
C
= 20 mA
Package:
SO8
Figure 1. Block diagram
Pin Description
Pin
1
2
Symbol
Ground
V
O
Function
Negative supply terminal
Switching output
(standby/ operation)
Control input
(standby/ operation)
Signal input to drive the current
source
3
V
I
4
V
I
Pin
5
6
Symbol
V
S1
I
O
Function
Positive supply voltage terminal
Undervoltage indicator output
(battery control)
IR
diode output signal
Supply voltage for the control
stages of constant current outputs
7
8
I
O
V
S2
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