NJU7660A 查看數據表（PDF） - Japan Radio Corporation
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NJU7660A Datasheet PDF : 10 Pages
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NJU7660A
TEST CIRCUIT
The measurement circuit diagram of negative voltage is
shown below. VR pin must connect to GND or Open
according to the operating voltage as follows:
V+ < 3.5V :Connected to GND
V+ 3.5V :OPEN
The oscillation frequency can be lowered by connected
external capacitor to the OSC pin, furthermore it can be
also driven by external clock generator.
TYPICAL APPLICATION
C1
10F
NC
V＋
C+
OSC
NJU7660A
GND
VR
VIN=1.5V~10V
C3
10F
COSC
RL
C-
VOUT
(*5)
(*5):Connect the diode as the VOUT pin in the figure above in
the case of V+ is 6.5V or more.
In the case of lee than 6.5V , V+ does not require this diode.
VOUT= -VIN
C2
10F
（1-1）Negative Voltage Output 1
1.5V to 3.5V operation
（1-2）Negative Voltage Output 2
3.5V to 10V operation
VIN=1.5V~3.5V
VIN=3.5V~10.0V
C1 +
10F -
1 N.C V+ 8
2 C+ OSC 7
3 GND VR 6
4 C- VOUT 5
NJU7660A
+ C3
- 10F
VOUT=-VIN
- C2
+ 10F
C1 +
10F -
1 N.C V+ 8
2 C+ OSC 7
3 GND VR 6
4 C- VOUT 5
NJU7660A
+ C3
- 10F
VOUT=-VIN
()
- C2
+ 10F
*Its Can also be used ceramic capacitor.(C1,C2,C3)
*Capacitance of C3 is equal to C1,C2 or more.
*Can also be used ceramic capacitor.(C1,C2,C3)
*Capacitance of C3 is equal to C1,C2 or more.
(*6): VR pin must connect to GND or Open according to the operating voltage as follows:
V+ < 3.5V :Connected to GND
V+ 3.5V :OPEN
(*7): In case of the operation voltage is 6.5V or more, a Diode must be connected to VOUT pin. If it is less than 6.5V, the
Diode is not required
（2）Twofold positive Voltage Output
1 N.C V+ 8
2 C+ OSC 7
3 GND VR 6
4 C-
VOUT 5
NJU7660A
VIN＝3.0V〜10V
C3
10F
＋
−
D1
D2
＋ C1 +
− 10F -
VOUT=2VIN-2VF
*VF:Forward voltage of the diode.
C2
10F
*Can also be used ceramic capacitor.(C1,C2,C3)
*Capacitance of C3 is equal to C1,C2 or more.
Ver.2014-05-20
-5-
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