MITSUBISHI (Dig./Ana. INTERFACE) M62258FP GENERAL PURPOSE BATTERY CHARGER CONTROL IC DESCRIPTION PIN CONFIGURATION (TOP VIEW) The M62258FP is designed as general purpose battery charger control. The M62258FP has function which require for the batterycharge control on single chip. Not only the combination of M62258 and microcomputer capable of handing battery charge 16 VDET GND 1 control, but also it is capable of monitoring battery temperature, P.C 2 prevent from over current or voltage, using minimal peripherals. It 15 IDET MSW 3 14 CS REF 4 13 CK output voltage. IN1 5 12 DI IN2 6 11 VB FEATURES ISENSE 7 10 VCC DOUT 8 9 VDD also has feedback function to the primary side of SW power supply, which can used to control feedback of charge current and •Built-in 3 wire serial data interface function for MCU. •Built-in multiplexer and level magnification circuit with 2input ports. •Built-in low input/output operation 5V voltage regulator function. 16P2N-A (Pre drive type) •Built-in charge current/output voltage control circuit. APPLICATION Video camera, hand held telephone and general battery charger for other digital equipment BLOCK DIAGRAM P.C VDET IDET VCC VB VDD MSW 16 15 10 11 9 3 2 VOLTAGE CONTROL OP VOLTAGE CONTROL CIRCUIT VOLTAGE REGULATOR 9 MAIN SW CIRCUIT 1 7 ISENSE 5 IN1 6 IN2 4 REF Amp1 CURRENT CONTROL OP CURRENT CONTROL CIRCUIT SERIAL/PARALLEL Amp2 CONVERSION CIRCUIT 3 1 14 12 13 GND CS DI CK ( 1 / 7 ) 8 DOUT 1 MITSUBISHI (Dig./Ana. INTERFACE) M62258FP GENERAL PURPOSE BATTERY CHARGER CONTROL IC EXPLANATION OF TERMINALS Symbol Pin No. 12 DI 13 CK 14 CS 8 4 5 , 6 7 3 9 11 10 15 16 2 1 DOUT REF IN1,2 ISENSE MSW1 VDD VB VCC IDET VDET P.C GND Function The serial data input pin which used to receive 8 bit wide serial data The shift clock input pin which tales the input signal of DI pin to 8 bit shift register by the rising edge of clock signal When this pin is "Low", DI pin can receive the data into the 8 bit shift register. The each bit will be latched at rising edge of the clock signal The output pin of the amplified A-D data The reference voltage output pin of the A-D converter The A-D converter input pin The current sense input pin The main switch driver output pin (Open collector) The stabilized +5V output pin The pre-drive pin which used to connect the external PNP Tr The power supply pin The current detection input pin The voltage detection input pin The feedback pin for voltage and current control The ground pin ABSOLUTE MAXIMUM RATINGS Symbol VCC ISW IB IPC VSW VPC Pd K Topr Tstg Parameter Supply voltage Main switch drive current Regulator output current P.C drive current Main switch max. voltage P.C max.voltage Power dissipation Thermal derating Operating temperature Storage temperature Ratings 16 200 20 10 VCC VCC 650 6.5 -20to+85 -40to+125 ( 2 / 7 ) Unit V mA mA mA V V mW mW/ °C °C °C MITSUBISHI (Dig./Ana. INTERFACE) M62258FP GENERAL PURPOSE BATTERY CHARGER CONTROL IC ELECTRICAL CHARACTERISTICS (Ta=25°C, Vcc=12V, ISW=50mA, unless otherwise noted) Symbol Parameter Test conditions VCC ICC VDD Reg-in Reg-L R.R VDEF VsatM VIN IIB VPCL VISENSE Supply voltage Circuit current Stabilized voltage output Input regulation Load regulation Ripple rejection ratio Min. input-output voltage difference Main-SW output saturation voltage Input voltage range Input bias current P.C output "L" voltage VIN-IN IN input voltage range IIN IN input current IB=10mA VDD+0.2V Min VDD+0.2 4.75 IDD=1 to 100mA f=120Hz,Vin=0dbm ISW=50mA 0.2 IPC=5mA VCC≥7V VCC=5.5V TYPICAL CHARACTERISTICS THERMAL DERATING (MAXIMUM RATING) 800 650 600 400 200 0 25 50 75 85 15 5.00 50 10 60 0.2 0.8 0 -1 ISENSE input voltage range 0 Limits Typ 100 125 AMBIENT TEMPERATURE Ta (°C) ( 3 / 7 ) 0.2 0.2 -100 Max 15 5.25 200 100 1.2 VCC-2 0.4 0.5 5 3.5 Unit V mA V mV mV dB V V V µA V V V V nA MITSUBISHI (Dig./Ana. INTERFACE) M62258FP GENERAL PURPOSE BATTERY CHARGER CONTROL IC DIGITAL DATA FORMAT LSB First Last DI MSB 8-BIT SHIFT RESISTER D7 CK D6 CS D5 D4 D3 D2 D1 D0 ADDRESS DECORDER 3 6 LATCH LATCH LATCH LATCH LATCH LATCH MPX MPX MPX MPX MPX MPX CURRENT CONTROL SW VOLTAGE CONTROL SW MAIN SW AMP SELECT INPUT SELECT A-D REFERENCE SELECT DATA TIMING CHART (MODEL) LSB DI MSB D0 D1 D3 D2 D4 D5 D6 D7 CK CS DATA SETTINGS Control function D7 Address D6 D5 D4 D3 Data D2 D1 D0 RESET 0 0 0 0 - - - - Current control Voltage control Main SW Amp. select Input select A-D reference select 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 0 - - - - - - - - ( 4 / 7 ) Description Main-SW is OFF, A-D reference voltage=0.8V Voltage setting reference voltage=4.0V Current setting reference voltage=45mV See Table 1 See Table 2 See Table 3 See Table 4 See Table 5 See Table 6 MITSUBISHI (Dig./Ana. INTERFACE) M62258FP GENERAL PURPOSE BATTERY CHARGER CONTROL IC Table 1. Current control data D2 0 0 0 0 1 1 1 D1 0 0 1 1 0 0 1 D0 0 1 0 1 0 1 0 Current control input voltage 0V 45mV 80mV 160mV 240mV 320mV Current ratio 0 1/8 1/4 1/2 3/4 1 Trickle *During trickle charge mode, use constant voltage mode and charge directly to the battery using external resister *45mV selected at RESET Table 2. Voltage control data D2 0 0 0 0 1 1 1 D1 0 0 1 1 0 0 1 D0 0 1 0 1 0 1 0 Voltage control input voltage 0V 0.8V 1.6V 2.4V 3.2V 4.0V 4.8V Voltage ratio 0 1 2 3 4 5 6 *Output port of microcomputer can be used to control voltage and current setting *4.0V setting at RESET Table 3. Main SW select D0 0 1 SW1 OFF ON Table 4. Amp. select D1 0 0 1 *Main SW is off at RESET D0 0 1 0 State Select Amp.1 output Select Amp.2 input Select Amp.2 output *Amp.1 output is selected at RESET Table 6. A-D Reference voltage select D2 0 D1 0 D0 0 0 0 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 0 State Select 0V Select 0.8V Select 1.6V Select 2.4V Select 3.2V Select 4.0V Select 4.8V *0.8V is selected at RESET ( 5 / 7 ) Table 5. Input select D0 0 1 State Select in1 Select in2 *IN1 selected at RESET MITSUBISHI (Dig./Ana. INTERFACE) M62258FP GENERAL PURPOSE BATTERY CHARGER CONTROL IC Function block description (1).A-D converter input REF 4.8V 3 VOLTAGE REGULATOR REFERENCE VOLTAGE 1 * 0.8V *Connect few 1000pF capacitor to stabilize the reference voltage Select the desire reference voltage to be detected by serial data This magnified data will be return to the A-D input port of the from the microcomputer. microcomputer. The input voltage level of IN1 and IN2 will be magnified 4 times As result, accuracy of the A-D converter of the microcomputer will using selected reference voltage as a canter. be increased by 2 bit. (2).+5V voltage regulator IDD Q1 +5V Since it capable of driving external PNP Tr. base up to 20mA, it can supply current of IDD MAX=20mAXQ1hFE. Also, since this is low I/O type power source, it can be operate VCC-VDD=0.1V VCC VB VDD ( 6 / 7 ) MITSUBISHI (Dig./Ana. INTERFACE) M62258FP GENERAL PURPOSE BATTERY CHARGER CONTROL IC APPLICATION EXAMPLE TRICKLE CHARGE CURRENT SETTING RESISTER MAIN SW TRANSISTOR To VDD TO BATTERY photo coupler CURRENT DETECTION RESISTER VOLTAGE REG. REFERENCE VOLTAGE VOLTAGE CONTROL OP AMP. CURRENT CONTROL OP AMP. MAIN SW DRIVER VOLTAGE CONTROL CIRCUIT SERIAL PARALLEL CONVERSION CIRCUIT CURRENT CONTROL CIRCUIT CS DI CK MULTIPLEXER LEVEL MAGNIFICATION CIRCUIT BATTERY TEMPERATURE DETECT VDD F0 F3 F2 MAX 30mA F1 K0 K1 VREF AVDD VDD 4-BIT MICROCOMPUTER (BUILT-IN A-D CONVERTER) RESET S0 M34XXX SERIES XIN AVSS INT S1 S2 S3 D0 D1 D2 D3 D4 D5 D6 D7 D8 ( 7 / 7 ) CNTR VSS BATTERY MOUNT DETECTION SWITCH