NJM2346 VOLTAGE AND CURRENT CONTROL IC ■GENERAL DESCRIPTION ■PACKAGE OUTLINE The NJM2346 is a low power operation battery charger IC. It includes a voltage reference and two operational amplifiers for voltage and current control needed for a design of secondary circuit for battery chargers and switching regulators. Low current consumption design contributes low standby power required for 1A class battery chargers. ■FEATURES ● Low Quiescent Current ● Precision AMP. ● Operating Voltage ● Precision Voltage Reference ● PC pin Sink Current ● Bipolar Technology ● Package Outline NJM2346M NJM2346RB1 250uA typ. Vio=0.5mV typ. 2.2V to 13V 1.24V±1% 20mA max. DMP8, TVSP8 ■PIN CONFIGURATION 8 1 A 2 B VREF 7 3 6 4 5 ■ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL Supply Voltage V+ Differential Input Voltage Common Mode Input Voltage PC Terminal Current Power Dissipation Operating Temperature Range Storage Temperature Range VID VIC IPC PD TOPR TSTG PIN FUNCTION 1. PC 2. A -INPUT 3. A +INPUT 4. GND 5. B +INPUT 6. B -INPUT 7. VREF 8. V+ MAXIMUM RATINGS 14 (Ach) 14 (Bch) 14 (Ach) -0.3 ∼ 14 (note) (Bch) -0.3 ∼ 14 (note) 20 (DMP 8) 300 (TVSP 8) 320 -40 ∼ +85 -50 ∼ +150 UNIT V V V mA mW °C °C (note) When the supply voltage is less than 14V, the absolute maximum input voltage is equal to the supply voltage. Ver.2003-05-21 -1- NJM2346 ■RECOMMENDED OPERATING CONDITIONS (Ta=25°C) PARAMETER SYMBOL MAXIMUM RATINGS Operating Voltage Vopr 2.2 ∼ 13 ■ELECTRICAL CHARACTERISTICS (V+=5V,Ta=25°C) GENERAL CHARACTERISTICS PARAMETER SYMBOL TEST CONDITION Operating Current Leakage Current Saturation Voltage Reference Voltage Reference Voltage Load Regulation ICC IPCLEAK VPC(SAT) VREF ∆VREF/ ∆IREF IPC=off V+=VPC=13V IPC=20mA IREF=0mA IREF=0mA ∼ 1mA UNIT V MIN. TYP. MAX. UNIT – – – 1227 250 – 0.1 1240 350 1 0.3 1253 uA uA V mV – – 10 mV MIN. TYP. MAX. UNIT – – – – -0.2 ∼ 3.0 – – – – 0.5 10 40 80 2 50 160 – mV nA nA dB – – V 80 80 0.5 1 – – – – dB dB V/uA MHz MIN. TYP. MAX. UNIT – – – – 0.5 ∼ 4.0 – – – – 0.5 10 20 80 2 50 80 – mV nA nA dB – – V 80 80 0.5 1 – – – – dB dB V/uA MHz [Ach] PARAMETER Input Offset Voltage Input Offset Current 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 TEST CONDITION VIO IIO IB AV VICM CMR SVR SR GB f=10kHz [Bch] PARAMETER Input Offset Voltage Input Offset Current 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 -2- SYMBOL TEST CONDITION VIO IIO IB AV VICM CMR SVR SR GB f=10kHz Ver.2003-05-21 NJM2346 ■ TYPICAL APPLICATIONS PC R5 VI CONTROL IC R1 R3 2 PC A 3 R2 RSC Ver.2003-05-21 8 1 B VREF=1.24V±1% R4 Battery NJM2346 5 6 7 R6 4 -3- NJM2346 Ach Voltage Gain · Phase vs. Frequency 225 Bch Voltage Gain · Phase vs. Frequency (V+=5V,Ta=25°C) 225 50 40 180 40 180 30 135 30 135 Voltage Gain A V (dB) Phase 20 45 10 Gain 0 100 1k 10k 100k 1M Frequency f (Hz) Phase 20 Operating Current vs. Operating Voltage (IPC=off,Ta=25°C) 300 250 200 150 100 50 45 Gain 1.4 0 1.2 1 0.8 0.6 0.4 0.2 2 4 6 8 10 12 0 14 2 4 6 8 10 12 14 + Operating Voltage V (V) Operating Voltage V (V) Saturation Voltage vs. PC Terminal Current (V+=5V,Ta=25°C) 1.4 Reference Voltage VREF (V) Saturation Voltage VPC(SAT) (V) 0 10M 10k 100k 1M Frequency f (Hz) Reference Voltage vs. Operating Voltage (IREF=0mA,Ta=25°C) + 0.2 0.1 Reference Voltage vs. 7pin Output Current (V+=5V,Ta=25°C) 1.2 1 0.8 0.6 0.4 0.2 0 0 0 -4- 1k 0 0 0.3 90 10 0 100 0 10M Reference Voltage VREF (V) 350 Operating Current ICC (uA) 90 Voltage Gain AV (dB) (V =5V,Ta=25°C) 50 Phase Φ (deg) + Phase Φ (deg) ■TYPICAL CHARACTERISTICS 5 10 15 PC Terminal Current IPC (mA) 20 0 1 2 3 7pin Output Current IREF (mA) Ver.2003-05-21 NJM2346 ■TYPICAL CHARACTERISTICS Operating Current vs. Temperature (V+=5V,IPC=off) 300 250 200 150 100 50 0 -50 -25 0 25 50 0.2 0.1 0 -50 -25 75 100 125 150 0 25 50 75 100 125 150 Temperature Ta (°C) Temperature Ta (°C) Reference Voltage vs. Temperature (V+=5V,IREF=0mA) Input Offset Voltage vs. Temperature (V+=5V) Input Offset Voltage Vio (mV) 1.26 Reference Voltage VREF (V) 0.3 Saturation Voltage VPC(SAT) (V) Operating Current ICC (uA) 350 Saturation Voltage vs. Temperature (V+=5V,IPC=20mA) 1.25 1.24 1.23 1.22 -50 -25 0 25 50 2 1.5 1 0.5 Ach 0 -0.5 Bch -1 -1.5 -2 -50 -25 75 100 125 150 Input Bias Voltage IB (nA) 25 50 75 100 125 150 Temperature Ta (°C) Temperature Ta (°C) 150 0 Input Bias Voltage vs. Temperature (V+=5V) 100 Ach 50 0 Bch -50 -100 -150 -50 -25 0 25 50 75 100 125 150 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook 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. Temperature Ta (°C) Ver.2003-05-21 -5-