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MITSUBISHI (Dig./Ana. INTERFACE)
M62258FP
GENERAL PURPOSE BATTERY CHARGER CONTROL IC
DESCRIPTION
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 control, but also it is capable of monitoring battery temperature, prevent from over current or voltage, using minimal peripherals. It also has feedback function to the primary side of SW power supply, which can used to control feedback of charge current and output voltage.
PIN CONFIGURATION (TOP VIEW)
GND 1 P.C 2 MSW 3 REF 4 IN1 5 IN2 6
16 VDET 15 IDET 14 CS 13 CK 12 DI 11 VB 10 VCC 9 VDD
FEATURES
*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.
(Pre drive type)
ISENSE 7 DOUT 8
16P2N-A
*Built-in charge current/output voltage control circuit.
APPLICATION
Video camera, hand held telephone and general battery charger for other digital equipment
BLOCK DIAGRAM
VDET 16
IDET 15
VCC 10
VB 11
VDD 9
MSW 3
P.C
2 VOLTAGE REGULATOR MAIN SW CIRCUIT 9 1
VOLTAGE CONTROL OP
VOLTAGE CONTROL CIRCUIT
7 Amp1 5
ISENSE
IN1
CURRENT CONTROL OP
CURRENT CONTROL CIRCUIT
SERIAL/PARALLEL CONVERSION CIRCUIT Amp2 6 4 3 1 IN2 REF
1 GND
14 CS
12 DI
13 CK
8 DOUT
(1/7)
MITSUBISHI (Dig./Ana. INTERFACE)
M62258FP
GENERAL PURPOSE BATTERY CHARGER CONTROL IC
EXPLANATION OF TERMINALS
Pin No.
12 13
Symbol DI CK CS 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
14 8 4 5
,
7 3 9 11 10 15 16 2 1
6
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 Unit V mA mA mA V V mW mW/ C C C
(2/7)
MITSUBISHI (Dig./Ana. INTERFACE)
M62258FP
GENERAL PURPOSE BATTERY CHARGER CONTROL IC
ELECTRICAL CHARACTERISTICS (Ta=25C, Vcc=12V, ISW=50mA, unless otherwise noted)
Symbol VCC ICC VDD Reg-in Reg-L R.R VDEF VsatM VIN IIB VPCL VISENSE VIN-IN IIN Parameter 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 ISENSE input voltage range IN input voltage range IN input current VCC7V VCC=5.5V 0.2 0.2 -100 Test conditions Min VDD+0.2 4.75 Limits Typ 15 5.00 50 10 60 0.2 0.8 Max 15 5.25 200 100 Unit V mA V mV mV dB V V V A V V V V nA
IB=10mA VDD+0.2V IDD=1 to 100mA f=120Hz,Vin=0dbm ISW=50mA
0 -1 IPC=5mA 0.2
1.2 VCC-2 0.4 0.5 5 3.5
TYPICAL CHARACTERISTICS
THERMAL DERATING (MAXIMUM RATING)
800
650
600
400
200
0 0 25 50
75 85
100
125
AMBIENT TEMPERATURE Ta (C)
(3/7)
MITSUBISHI (Dig./Ana. INTERFACE)
M62258FP
GENERAL PURPOSE BATTERY CHARGER CONTROL IC
DIGITAL DATA FORMAT
LSB DI CK CS D7 D6 D5 First 8-BIT SHIFT RESISTER D4 D3 D2 D1 D0 Last MSB
ADDRESS DECORDER 6 3
LATCH MPX CURRENT CONTROL SW
LATCH MPX VOLTAGE CONTROL SW
LATCH MPX MAIN SW
LATCH MPX AMP SELECT
LATCH MPX INPUT SELECT
LATCH MPX
A-D REFERENCE SELECT
DATA TIMING CHART (MODEL)
LSB DI D0 D1 D2 D3 D4 D5 D6 MSB D7
CK
CS
DATA SETTINGS
Control function RESET Current control Voltage control Main SW Amp. select Input select A-D reference select D7 0 0 0 0 0 0 0 Address D6 D5 0 0 0 0 1 1 1 0 0 1 1 0 0 1 D4 0 1 0 1 0 1 0 D3 Data D2 D1 D0 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
(4/ 7 )
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 D0 0 1 0 State Select Amp.1 output Select Amp.2 input Select Amp.2 output
Table 5. Input select
D0 0 1 State Select in1 Select in2
*Main SW is off at RESET
*IN1 selected at RESET
*Amp.1 output is selected at RESET
Table 6. A-D Reference voltage select
D2 0 0 0 0 1 1 1 D1 0 0 1 1 0 0 1 D0 0 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)
MITSUBISHI (Dig./Ana. INTERFACE)
M62258FP
GENERAL PURPOSE BATTERY CHARGER CONTROL IC
Function block description (1).A-D converter input
REF 4.8V VOLTAGE REGULATOR REFERENCE VOLTAGE 0.8V *Connect few 1000pF capacitor to stabilize the reference voltage 3 1
*
Select the desire reference voltage to be detected by serial data from the microcomputer. The input voltage level of IN1 and IN2 will be magnified 4 times using selected reference voltage as a canter.
This magnified data will be return to the A-D input port of the microcomputer. As result, accuracy of the A-D converter of the microcomputer will 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 photo coupler CURRENT DETECTION RESISTER
VOLTAGE REG. REFERENCE VOLTAGE VOLTAGE CONTROL CIRCUIT
TO BATTERY
VOLTAGE CONTROL OP AMP.
MAIN SW DRIVER
CURRENT CONTROL OP AMP.
SERIAL PARALLEL CONVERSION CIRCUIT
CURRENT CONTROL CIRCUIT
CS
DI
CK
MULTIPLEXER LEVEL MAGNIFICATION CIRCUIT
BATTERY TEMPERATURE DETECT
VDD
MAX 30mA VDD
F0 F3 F2
F1
K0
K1
VREF AVDD
RESET
4-BIT MICROCOMPUTER (BUILT-IN A-D CONVERTER) M34XXX SERIES
S0
BATTERY MOUNT DETECTION SWITCH
XIN AVSS INT S1 S2 S3 D0 D1 D2 D3 D4 D5 D6 D7 D8 CNTR VSS
(7/7)

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