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U6081B Datasheet

  • U6081B

  • PWM Power Control with Low Duty Cycle Switch Off

  • 122.54KB

  • 8頁

  • TEMIC

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U6081B
PWM Power Control with Low Duty Cycle Switch Off
Description
U6081B is a PWM IC in bipolar technology for the
control of an N-channel power MOSFET used as a high
side switch. The IC is ideal for the use in the brightness
control (dimming) of lamps e.g., in dashboard
applications.
Features
D
Pulse width modulation up to 2 kHz clock frequency
D
Protection against short circuit, load dump overvol-
tage and reverse V
S
D
Interference and damage protection according to
VDE 0839 and ISO/TR 7637/1.
D
Duty cycle 0 to 100%
D
Output stage for power MOSFET
D
Ground wire breakage protection
D
Charge pump noise suppressed
Ordering Information
Extended Type Number
U6081B
Package
DIP8
Remarks
Block Diagram
V
S
1
5
Current monitoring
+ short circuit detection
Charge
pump
6
C
5
R
sh
V
Batt
C
1
47 k
W
4
RC oscillator
PWM
Logic
Control input
7
C
3
47 nF
8
Output
C
2
3
Duty cycle
range
0/13 to 100 %
2
Voltage
monitoring
95 9752
150
W
R
3
Ground
Figure 1. Block diagram with external circuit
TELEFUNKEN Semiconductors
Rev. A1, 14-Feb-97
1 (8)

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