CF8140A 查看數據表（PDF） - Nippon Precision Circuits
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CF8140A Datasheet PDF : 6 Pages
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BLOCK DIAGRAM
SM8140A
ENA
CPO
CP1
CP2
Enable Circuit
Charge Pump
Circuit
High Voltage
Switching Circuit
Level Shifter
Divider
Divider
Oscillation Circuit
for Voltage Booster
Oscillasion Circuit
for output
PIN DESCRIPTION
SSOP
1
−
2
3
−
4
5
6
7
8
9
10
11
12
13
14
chip Pin Name
i/o
11
CHV
i
12
MONG
o
13
LDR
o
14
VSS1
−
4
VSS2
−
15
OCL2
o
16
OCL1
i
1
OCE2
i
2
OCE1
o
3
ENA
ip1
5
VDD
−
6
CPO
o
7
CP1
o
8
CP2
o
9
OUT2
o
10
OUT1
o
1. "ip" defines input pin with pull down internal resistor
DC high voltage pin
Monitor gate
Step − up inductor driver output
GND
GND
Function
CR oscillator pin for step − up inductor and charge pump.
External resistor at this pin determines oscillator frequency.
CR oscillator pin for output
External resistor at this pin determines oscillator frequency
Output control pin. Output from OUT1 and OUT2 pins are stopped When "L".
Power supply pin
Charge pump output (Voltage output for driving high voltage MOS)
Charge pump external capacitor pin
Charge pump external capacitor pin
Output for EL
Output for EL
NIPPON PRECISION CIRCUITS—3
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