NJM2337 Battery Charger IC ■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE 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 ■ FEATURES ● Operating Voltage 2.2V to 13V ● Internal Precision Voltage Reference 1.24V±1% 20mA max. 280µA max. ● PC Terminal Current ● Operating Current ● Bipolar Technology ● Package Outline MTP6 ■ PIN CONFIGURATION VREF(A) 1 - A + 6 RFB 2 3 5 VREF(B) - B + 4 PIN FUNCTION 1 : A -INPUT 2 : GND 3 : B +INPUT 4 : V+ 5 : PC 6 : A +INPUT NJM2337 ■ ABUSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage SYMBOL V+ Differential Input Voltage VID Power Dissipation PC Terminal Current Operating Temperature Range Storage Temperature Range PD IPC Topr Tstg RATINGS +14 (Ach) 14V (Bch) 14V 200 20 -40 to +85 -50 to +150 (Ta=25°C) UNIT V V mW mA °C °C ■ RECOMMENDED OPERATING CONDITIONS PARAMETER Operating Voltage SYMBOL Vopr RATINGS 2.2 to 13 UNIT V ■ ELECTRICAL CHARACTERISTICS PARAMETER Operating Current Leakage Current Saturation Voltage Feedback Resistance (V+=5V, Ta=25°C) MAX. UNIT 280 µA 1 µA 0.3 V 1.3 Ω SYMBOL ICC IPCLEAK VPC(SAT) RFB CONDITIONS IPC=off V+=VPC=13V IPC=20mA MIN. 0.7 TYP. 200 0.1 1.0 SYMBOL CONDITIONS A version B version C version MIN. 69 105 145 - MAX. 75 113 157 160 - UNIT mV mV mV nA dB - V - dB dB V/µs MHz MAX. 1253 80 - UNIT mV nA dB V dB dB V/µs MHz [Ach] PARAMETER Reference Voltage VREF(A) Input Bias Current Large Signal Voltage Gain IB AV Input Common Mode Voltage Range VICM - Common Mode Rejection Ratio Supply Voltage Rejection Ratio Slew Rate Gain Bandwidth Product CMR SVR SR GB - TYP. 72 109 151 40 80 -0.2 to 3.0 70 80 0.5 1 MIN. 1227 - TYP. 1240 20 80 0.5 to 4.0 80 80 0.5 1 f=10kHz [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 f=10kHz NJM2337 ■ TYPICAL APPLICATION • TYPICAL APPLICATION1 + PC R1 VI 4 CONTROL IC 1 6 PC NJM2337A/B/C 5 VREF(A) − + A B RFB 3 + − Battery VREF(B) R2 2 RSC R1 + R2 VOUT = VREF( B ) × (V) R2 VREF( A ) CURRENT LIMIT = RSC (A) • TYPICAL APPLICATION2 + PC R1 VI CONTROL 1 4 VREF(A) 5 − + 6 PC NJM2337A/B/C A B RFB − VREF(B) 3 Battery R2 2 RSC OUTPUT= { VREF ( B ) + ( IL × RSC ) } × CURRENT LIMIT= + VREF(A) RSC (A) R1+R2 R2 − ( IL × RSC ) ( V ) NJM2337 ■ TYPICAL CHARACTERISTICS Ach Voltage Gain , Phase vs. Frequency C haracteristic Bch Voltage Gain , Phase vs. Frequenc y Characteristic ( V+=5 V ,Ta =2 5°C ) ( V+=5V ,Ta=25°C ) 10 P h a se -10 -30 -50 100 1,000 10,000 100,000 1,000,000 225 dB 40 180 30 135 20 90 P hase 10 45 0 0 -10 -45 -20 -90 -30 -135 -40 -180 -50 10,000,000 -225 100 1,000 10,000 Frequency Hz 100,000 1,000,000 10,000,000 Frequency Hz Su pply C urrent(Icc) vs. S upp ly Voltage(Vcc) 300 300 250 250 200 200 Icc (uA) Ic c (uA ) Supply Current(Icc) vs. Temperature 150 100 50 50 Vcc=5V 0 0 0 2 4 6 8 10 12 14 INPUT BIAS CURRENT 70 60 Ach 50 40 30 20 10 Bch 0 -20 0 20 -40 -20 0 20 40 Ambient Temperature (°C) V cc (V ) Input Bias Current nA 150 100 -40 Vcc=13V 40 Ambient Temperature (°C) 60 80 60 80 V oltageP hase (deg) 30 50 V oltage Gain dB V oltage Gain dB dB VoltagePhase (deg) 225 180 135 90 45 0 -45 -90 -135 -180 -225 50 NJM2337 VOLTAGE REFERENCE VOLTAGE REFERENCE (B Version) 74 112 73 111 Vref ( A ) mV Vref (A) mV (A Version) 72 71 70 110 109 108 107 106 69 105 68 -40 10 -40 60 10 60 Ambient Temperature (°C) Ambient Temperature (°C) VOLTAGE REFERENCE SATURATION VOLTAGE vs. OUTPUT CURRENT (C Version) (Ach.) 154 0.4 Saturation Voltage (V) 153 Vref ( A ) mV 152 151 150 149 0.2 148 0.0 147 0 10 Temperature(°C) Ambient -40 60 (Bch) Saturation Voltage (V) 0.4 0.2 0.0 5 10 15 20 25 Output Current (mA) 30 10 15 20 25 Output Current (mA) SATURATION VOLTAGE vs. OUTPUT CURRENT 0 5 35 40 30 35 40 NJM2337 Amp.Gain vs. Ambient Temperature Amp.Gain vs. Ambient Temperature ( Bch ) ( Ach ) 120 120 110 110 AV SVR+ 90 SVR- 80 AV 100 dB dB 100 SVR+ 90 80 CMR 70 70 -40 -20 SVR- 60 CMR 60 0 20 40 60 -40 80 -20 Ambient Temperature (°C) 4.0 3.0 4.0 0.0 -1.0 Vicm V Vicm V 5.0 VICM+ 40 60 80 Vcc=5V Vcc=5V 5.0 VICM- 20 Input Common Mode Voltage Range vs. Ambient Temperature (Bch) Input Common Mode Voltage Range vs. Ambient Temperature (Ach) 2.0 1.0 0 Ambient Temperature (°C) 3.0 \ VICM+ 2.0 VICM- 1.0 0.0 -1.0 -40 10 60 Ambient Temperature (°C) -40 10 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.