MSC1215-XX OKI [OKI electronic componets], MSC1215-XX Datasheet - Page 17
MSC1215-XX
Manufacturer Part Number
MSC1215-XX
Description
17 x 2 Duplex Driver with Dimming, Keyscan and A/D Converter Function
Manufacturer
OKI [OKI electronic componets]
Datasheet
1.MSC1215-XX.pdf
(22 pages)
- Current page: 17 of 22
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¡ Semiconductor
Analog Dimming
The PWM duty cycle is controlled by analog voltage which is the output of the brightness control
volume on a dashboard. The dimming curve is mask-programmable with the following
limitations;
1. Maximum duty cycle is 12.5%.
2. Number of pulse stops is max. 52.
3. Input Voltage to "VD"
Note: The maximum voltage to the VD is 5V.
4. Maximum Threshold Voltage
5. Minimum & Maximum VDIM Input Voltage
The input voltage to "VD" needs to use a voltage divider as shown below.
The maximum threshold voltage is 5.0V.
The minimum threshold voltage step is 20mV.
Only for the first step, the threshold voltage can be any value between 20mV and 3V.
12.5%
Max 12.5%
VD-IN
100% (DUTY)
0
2R
1
max 3V
2
min 20mV
3
R
VD
DUTY CYCLE STEP
512kHz
MSC1215-xx
17/22
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