NJM2340 JRC, NJM2340 Datasheet
NJM2340
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NJM2340 Summary of contents
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... HIGH PRECISION DC/DC CONVERTER CONTROL IC ■GENERAL DESCRIPTION NJM2340 is a high precision DC/DC converter control IC with current sense amplifier. It uses a low side current sensing which reduces external components and improves accuracy applicable for a wide range of application since it features high operating voltage and small outline packages. ...
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... NJM2340 www.DataSheet4U.com ■BLOCK DIAGRAM 0.15V IN1 ■ABSOLUTE MAXIMUM RATINGS (Ta=25°C ) PARAMETER Maximum Supply Voltage Output Sink Current Power Dissipation Operating Temperature Range Storage Temperature Range ■RECOMMENDED OPERATING CONDITIONS (Ta=25°C) PARAMETER Supply Voltage Oscillation Frequency Oscillator Timing Resistance - REF 8 7 REF ...
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... SYMBOL TEST CONDITION V duty·cycle=0% TH0 (note) V duty·cycle=100% TH100 (note) SYMBOL TEST CONDITION V I =10mA OL SINK SYMBOL TEST CONDITION I R =∞, duty·cycle=50% CCAV L NJM2340 MIN. TYP. MAX. UNIT 1.98 2.00 2.02 V – 4 – 6 MIN. TYP. MAX. UNIT 315 350 385 kHz MIN ...
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... NJM2340 www.DataSheet4U.com ■TYPICAL APPLICATION REF 0.15V 1 IN1 GND 27k Ω 220pF OUT REF 7 6 OSC ERROR AMP PWM CURRENT SENSE AMP 2 3 IN2 F.B GND ...
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... OR Average Quiescent Current (R = ,duty·cycle=50%,Ta=25°C) ∞ 2.5 2 1 電源電圧 V (V) NJM2340 Oscillator Frequency vs. Timing Capacitor + (V =12V,Ta=25°C) R =47kΩ =100kΩ T 100 1000 Timing Capacitor C (pF Output Voltage vs. Source Current + (V =12V,Ta=25°C) 0 ...
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... NJM2340 www.DataSheet4U.com ■TIPICAL CHARACTERISTICS Oscillation Frequency vs. Temperature + (V =12V,R =27kΩ,C T 400 380 360 340 320 300 -50 - Ambient Temperature Ta (°C) L Level Output Voltage vs. Temperaure + (V =12V,I 0.5 0.4 0.3 0.2 0.1 0 -50 - Ambient Temperature Ta (°C) 153 152 151 150 149 148 147 - 6 - =220pF ...