NJM2392 查看數據表（PDF） - Japan Radio Corporation

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NJM2392

PWM DC/DC Converter IC

Japan Radio Corporation  

NJM2392

■ELECTRICAL CHARACTERISTICS

DC Characteristics (V+=5V, Ta=25°C)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN. TYP. MAX. UNIT

OSCILLATOR BLOCK

Oscillation Frequency

Charge Current

Discharge Current

Voltage Swing

Discharge to Charge

Current Ratio

fOSC

Ichg

Idis

VOSC

Iratio

IN-=0V, CT=1nF

CT=1nF

Ichg/Idis

CURRENT LIMIT

Peak Current

Sense Voltage

Vipk

OUTPUT SWITCH

Saturation Voltage 1

Saturation Voltage 2

Output Transistor

Bias Resistance

DC Voltage Gain

Collector Off-State Current

Vsat1

Vsat2

Rbias

hFE

IC(Off)

Darlington Connection

(CS=CD), ISW=0.7A

ISW=0.7A, IC(driver)=50mA

(Forced β≈14)

ISW=0.7A,VCE=5.0V

VCE=40V

ERROR AMPLIFIER

Threshold Voltage

Input Bias Current

Vth

IIB IN-=0V

GENERAL CHARACTERISTICS

Operating Current

ICC

CT=1nF, SI=V+, IN->Vth, ES=GND

18

27

36 kHz

11

18

27

µA

110 180 300 µA

–

0.5

–

VP-P

–

9

–

–

250 300 350 mV

–

1.0

1.3

V

–

0.5

0.7

V

–

160

–

Ω

35

120

–

–

–

0.01

1

µA

1.225 1.250 1.275 V

–

300 900 nA

–

2.8

4.0 mA

(note) Output switch tests are performed under pulsed conditions to minimize power dissipation.

Ver.2008-08-29

-3-

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