M62255FP MITSUBISHI, M62255FP Datasheet
M62255FP
Related parts for M62255FP
M62255FP Summary of contents
Page 1
... DESCRIPTION The M62255FP is intended to be used a general purpose battery charger control for Note PC. The M62255FP contains the functions which are required for the battery charge control ,on single chip using low peripheral component requirement . The M62255FP can handle battery charge control, monitor battery temperature and prevent from over current and voltage with microcomputer ...
Page 2
... The pin used to connect capacitor to determine the frequency of ocelot 5 The control pin of power save mode (H : power save mode normal mode Vcc The power supply pin The ground pin GND The ground pin of power unit GND MITSUBISHI<Dig./Ana. INTERFACE> GENERAL PURPOSE BATTERY CHARGER CONTROL IC Function ( / M62255FP ...
Page 3
... GENERAL PURPOSE BATTERY CHARGER CONTROL IC Conditions Ta=25°C Ta>25° 100 AMBIENT TEMPERATURE Ta (° MITSUBISHI<Dig./Ana. INTERFACE> M62255FP Ratings Unit Vcc 7 V 950 mW mW/ °C 9.5 °C -20 – +75 -40 – +125 °C 125 ...
Page 4
... MITSUBISHI<Dig./Ana. INTERFACE> GENERAL PURPOSE BATTERY CHARGER CONTROL IC (Ta=25°C, Vcc=15V) Test condition PS input voltage V =2.0v PS Isw=50mA Vref=5.0v, Voltage control data is 4.2v selected at Reset Vref=5.0v, Current control data is 160mV selected Vref=5.0v Cosc = 390pF M62255FP Limits Unit Min Typ Max V 7 10.0 4.0 7.0 µ ...
Page 5
... MITSUBISHI<Dig./Ana. INTERFACE> M62255FP First LSB LATCH LATCH MPX MPX A-D INPUT REFERENCE SELECT SELECT MSB D6 D7 Description D0 A-D Reference voltage = 2.5V Voltage control setting = 4.2V - Voltage fine control setting = 0V Current control setting = 20mV ...
Page 6
... Set-up voltage; 4.20V(Ref. voltage) - 100mV(fine cntl. voltage) = 4.10V table 1 table Set-up voltage; 3.56V(Ref. voltage) - 150mV(fine cntl. voltage) = 3.41V ( MITSUBISHI<Dig./Ana. INTERFACE> M62255FP Current ratio 0 1/16 1/8 1/4 1/2 3/4 1 Trickle ...
Page 7
... IN2 1 select IN3 0 select IN4 1 D0 State 0 select 5.0V 1 select 4.69V 0 select 4.38V select 4.06V 1 0 select 3.75V select 3.44V 1 select 3.13V 0 select 2.81V 1 select 2.50V 0 select 2.19V 1 select 1.88V 0 select 1.56V 1 select 1.25V 0 select 0.94V 1 select 0.63V 0 select 0.31V M62255FP ...
Page 8
... This multiplied voltage is supplied to A-D input of MCU from D converter of MCU is improved by 2-Bit as against the difference of IN1-IN4 input. GENERAL PURPOSE BATTERY CHARGER CONTROL 5.0V 0.31V D OUT to A-D input of MCU OUT ( / MITSUBISHI<Dig./Ana. INTERFACE> M62255FP 1 I SENSE2 - x10 I SENSE2+ I SENSE1 - x10 I SENSE1+ IN1 IN2 IN3 ...
Page 9
... IN1(or IN2,IN3,IN4) is between 1.9V and 3.1V. (This range of input voltage is difference from selected Reference Voltage.) GENERAL PURPOSE BATTERY CHARGER CONTROL IC 4times Amplifier (V) ---------------- (1) ref OUT D . OUT is between 0V and 5V Fig.2 the range of input D OUT ( / MITSUBISHI<Dig./Ana. INTERFACE> M62255FP 3.1V 2.8V 0.3V Reference 2.5V Voltage 2.2V 1.9V input voltage ...
Page 10
... To 10times Amplifier To 4times Amplifier Fig.3 Detector Circuit of Battery Voltage / Charge Current MITSUBISHI<Dig./Ana. INTERFACE> GENERAL PURPOSE BATTERY CHARGER CONTROL IC I SENSE+ I SENSE - IN1 - M62255FP . OUT Charge Current Detect R ...
Page 11
... GENERAL PURPOSE BATTERY CHARGER CONTROL IC 200K 600K ( / MITSUBISHI<Dig./Ana. INTERFACE> M62255FP ...
Page 12
... PACKAGE OUTLINE MITSUBISHI<Dig./Ana. INTERFACE> GENERAL PURPOSE BATTERY CHARGER CONTROL M62255FP ...