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Atmel Electronic Components Datasheet

U6083B Datasheet

PWM Power Control IC with Interference Suppression

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Features
Pulse-width Modulation up to 2 kHz Clock Frequency
Protection Against Short-circuit, Load Dump Overvoltage and Reverse VS
Duty Cycle 18 to 100% Continuously
Internally Reduced Pulse Slope of Lamp's Voltage
Interference and Damage Protection According to VDE 0839 and ISO/TR 7637/1
Charge-pump Noise Suppression
Ground-wire Breakage Protection
Description
The U6083B 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 use in brightness control sys-
tems (dimming) of lamps, for example, in dashboard applications.
PWM Power
Control IC with
Interference
Suppression
U6083B
Rev. 4770A–AUTO–11/03


Atmel Electronic Components Datasheet

U6083B Datasheet

PWM Power Control IC with Interference Suppression

No Preview Available !

Figure 1. Block Diagram with External Circuit
VS
1
C5
5
Current monitoring
+ short circuit detection
Rsh
6
C1
RC oscillator
4
47 k
Control input
C2 3
PWM
Logic
Charge 7
pump
8
Output
Duty cycle
range
18 to 100%
Duty cycle
reduction
GND 2
Voltage
monitoring
Slew rate
control
VBatt
C3
47 nF
150 R3
Ground
2 U6083B
4770A–AUTO–11/03


Part Number U6083B
Description PWM Power Control IC with Interference Suppression
Maker ATMEL Corporation
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U6083B Datasheet PDF






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