High Efficiency Car Dashboard Dimmer
AN8353UB
High Efficiency Car Dashboard Dimmer IC
s Overview
The AN8353UB is a dimmer IC to control illumination of the c...
Description
AN8353UB
High Efficiency Car Dashboard Dimmer IC
s Overview
The AN8353UB is a dimmer IC to control illumination of the car dashboard at high efficiency and high performance by pulse width control. It outputs pulses at a duty proprotional to an input voltage.
2.4±0.25 3.3±0.25 6.0±0.3 Unit : mm
8
0.5±0.1
s Features
Low power consumption by pulse control External ON/OFF control by the standby pin Pulse frequency range : 50Hz to 10kHz Built-in overvoltage protective circuit approx. 20V Wide operating ambient temperature range : –40˚C to+100˚C All products temperature cycle, high reliability by normal
and high temperature checks reliability equivalent to the air bags requested in U.S.
23.3±0.3
7 6 5 4
1.5±0.25
2 1 0.3 – 0.05
+ 0.1
3.0±0.3
9-pin SIL Plastic Package (SIP009-P-0000C)
s Block Diagram
4
9 Over Voltage Protector
PWM Comparator
VCC
3
Control Voltage Conversion
1
Triangular Wave Gen.
2
GND
6
5
7
8
1.4±0.3 30˚
3
1.5±0.25
2.54
9
s Pin Descriptions
Pin No. 1 2 3 4 5 Output pin GND Input pin Noise eliminating capacity connection pin 1 Square wave output pin Pin name GND Applies a control voltage. Connect a capacitor to eliminator a noise. Output a triangular wave, which serves as a reference for the PWM signal, to the Pin6 by connecting the resistor RT between the Pins5 and6, and capacity CT between the Pin6 and GND. Output a triangular wave, which serves as a reference for the PWM signal, to this pin by connecting the resistor RT betwe...
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