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| NJM2337 Battery Charger IC GENERAL DESCRIPTION The NJM2337 is a voltage and current control IC which contains precision voltage reference. It is suitable for battery charger, second controller of switching regulator systems, and other battery systems. NJM2337AF/BF/CF PACKAGE OUTLINE FEATURES Operating Voltage 2.2V to 13V Internal Precision Voltage Reference PC Terminal Current Operating Current Bipolar Technology Package Outline PIN CONFIGURATION VREF(A) 1.24V1% 20mA max. 280A max. MTP6 1 RFB -A + 6 5 2 3 VREF(B) + PIN FUNCTION 1 : A -INPUT 2 : GND 3 : B +INPUT 4 : V+ 5 : PC 6 : A +INPUT -B 4 NJM2337 ABUSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Differential Input Voltage Power Dissipation PC Terminal Current Operating Temperature Range Storage Temperature Range SYMBOL V+ VID PD IPC Topr Tstg RATINGS +14 (Ach) 14V (Bch) 14V 200 20 -40 to +85 -50 to +150 (Ta=25C) UNIT V V mW mA C C RECOMMENDED OPERATING CONDITIONS PARAMETER Operating Voltage SYMBOL Vopr RATINGS 2.2 to 13 UNIT V (V+=5V, Ta=25C) MAX. UNIT 280 A 1 A 0.3 V 1.3 MAX. 75 113 157 160 MAX. 1253 80 UNIT mV mV mV nA dB V dB dB V/s MHz UNIT mV nA dB V dB dB V/s MHz ELECTRICAL CHARACTERISTICS PARAMETER Operating Current Leakage Current Saturation Voltage Feedback Resistance [Ach] PARAMETER Reference Voltage Input Bias Current Large Signal Voltage Gain Input Common Mode Voltage Range Common Mode Rejection Ratio Supply Voltage Rejection Ratio Slew Rate Gain Bandwidth Product [Bch] PARAMETER Reference Voltage Input Bias Current Large Signal Voltage Gain Input Common Mode Voltage Range Common Mode Rejection Ratio Supply Voltage Rejection Ratio Slew Rate Gain Bandwidth Product SYMBOL VREF(B) IB AV VICM CMR SVR SR GB CONDITIONS MIN. 1227 TYP. 1240 20 80 0.5 to 4.0 80 80 0.5 1 SYMBOL VREF(A) IB AV VICM CMR SVR SR GB CONDITIONS A version B version C version MIN. 69 105 145 TYP. 72 109 151 40 80 -0.2 to 3.0 70 80 0.5 1 SYMBOL ICC IPCLEAK VPC(SAT) RFB CONDITIONS IPC=off V+=VPC=13V IPC=20mA MIN. 0.7 TYP. 200 0.1 1.0 f=10kHz f=10kHz NJM2337 TYPICAL APPLICATION * TYPICAL APPLICATION1 + PC R1 VI CONTROL IC 1 PC 6 4 VREF(A) RFB - + A 5 NJM2337A/B/C B + - 3 Battery R2 RSC 2 VREF(B) VOUT = VREF( B ) x CURRENT LIMIT = R1 + R2 R2 VREF( A ) RSC (V) (A) * TYPICAL APPLICATION2 + PC R1 VI CONTROL 1 4 VREF(A) 5 NJM2337A/B/C B + - 3 - + PC 6 A Battery R2 RFB VREF(B) RSC 2 OUTPUT= { VREF ( B ) + ( IL x RSC ) } x VREF(A) RSC (A) R1+R2 R2 - ( IL x RSC ) ( V ) CURRENT LIMIT= NJM2337 TYPICAL CHARACTERISTICS Ach Voltage Gain , Phase vs. Frequency C haracteristic ( V+=5V ,Ta=25C ) Bch Voltage Gain , Phase vs. Frequenc y Characteristic ( V+=5 V ,Ta =2 5C ) 50 dB 20 10 0 -10 -20 -30 -40 -50 100 1,000 10 -10 -30 -50 100 1,000 P hase 90 45 0 -45 -90 -135 -180 -225 P h a se 10,000 100,000 1,000,000 10,000,000 10,000 100,000 1,000,000 10,000,000 Frequency Hz Frequency Hz Su pply C urrent(Icc) vs. S upp ly Voltage(Vcc) Supply Current(Icc) vs. Temperature 300 250 200 300 250 200 Icc (uA) Vcc=13V Ic c (uA ) 150 100 50 0 0 2 4 6 8 10 12 14 150 100 50 0 -40 -20 Vcc=5V 0 20 40 60 80 V cc (V ) Ambient Temperature (C) INPUT BIAS CURRENT 70 60 Input Bias Current nA 50 40 30 20 10 0 -40 -20 0 20 Bch Ach 40 60 80 Ambient Temperature (C) V oltageP hase (deg) V oltage Gain dB 30 225 180 135 90 45 0 -45 -90 -135 -180 -225 50 40 dB 225 180 135 VoltagePhase (deg) 30 V oltage Gain dB NJM2337 VOLTAGE REFERENCE (A Version) 74 73 112 111 VOLTAGE REFERENCE (B Version) Vref (A) mV 72 71 70 69 68 -40 10 60 Vref ( A ) mV 110 109 108 107 106 105 -40 10 60 Ambient Temperature (C) Ambient Temperature (C) VOLTAGE REFERENCE (C Version) 154 153 152 SATURATION VOLTAGE vs. OUTPUT CURRENT (Ach.) 0.4 151 150 149 148 Saturation Voltage (V) Vref ( A ) mV 0.2 0.0 147 -40 10 Ambient Temperature(C) 60 0 5 10 15 20 25 30 35 40 Output Current (mA) SATURATION VOLTAGE vs. OUTPUT CURRENT (Bch) 0.4 Saturation Voltage (V) 0.2 0.0 0 5 10 15 20 25 30 35 40 Output Current (mA) NJM2337 Amp.Gain vs. Ambient Temperature ( Bch ) 120 110 Amp.Gain vs. Ambient Temperature 120 110 100 ( Ach ) AV dB AV SVR+ 100 90 80 70 dB 90 80 70 60 -40 SVR+ SVR- CMR SVR-40 -20 0 20 40 60 80 CMR -20 0 20 40 60 80 60 Ambient Temperature (C) Ambient Temperature (C) Input Common Mode Voltage Range vs. Ambient Temperature (Ach) Vcc=5V Input Common Mode Voltage Range vs. Ambient Temperature (Bch) Vcc=5V 5.0 4.0 VICM+ 5.0 Vicm V Vicm V 4.0 3.0 2.0 1.0 0.0 -1.0 -40 10 60 Ambient Temperature (C) VICM+ VICM- 3.0 2.0 1.0 0.0 -1.0 -40 10 VICM- \ 60 Ambient Temperature (C) The specifications on this data book are only given for information, without any guarantee as regards either mistakes or omissions. The application circuit in this data book are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. |
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