NJM2559 查看數據表（PDF） - Japan Radio Corporation
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产品描述 (功能)
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NJM2559
Japan Radio Corporation
NJM2559 Datasheet PDF : 10 Pages
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NJM2559
s APPLICATION CIRCUIT: Power Supply Short-circuit for 18Vmax)
1
NC
2 GND
75Ω
75Ω
500Ω
3 REF
4 VOUT
360Ω
+
33uF
120Ω
NC
8
Power
Save
7
0.1uF
VIN
6
75Ω
V+
5
10uF 0.1uF
s APPLICATION
Please connect the capacitor of power supply terminal (pin 5) near IC.
DC coupling is recommended. Please do not connect the output coupling capacitor.
The power dissipation of external resistance is as follows.
When the power supply short-circuit voltage is 18Vmax, the current that flows to each resistance is as follows.
- 75Ω (series resistance): about 60mA
- 360Ω,120Ω (power supply short-circuit detection resistance): about 30mA
- 500Ω(pull-down resistance): about 30mA
The power dissipation recommendation value of each resistance is as follows.
- 75Ω (series resistance): 300mW or more
- 360Ω(power supply short-circuit detection resistance): 400mW or more
- 120Ω(power supply short-circuit detection resistance): 125mW or more
- 500Ω(pull-down resistance): 500mW or more
The load resistance of NJM2559 is about 93Ω in this application circuit.
Please use it more than 93Ω.
Moreover, supply current increases by 1mA when comparing with test circuit.
Ver.0
-4-
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