M62254FP Просмотр технического описания (PDF) - Renesas Electronics
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M62254FP Datasheet PDF : 12 Pages
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M62254FP
Standard Battery Charger Controller
REJ03F0244-0200
Rev.2.00
Jun 16, 2008
Description
The M62254FP is designed as standard battery charger controller. The M62254FP has functions which require for the
battery charge control on single chip. Not only the combination of M62254 and MCU capable of handling 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 source of SW power supply, which can used to control
feedback of charge current and output voltage.
Features
• Built-in reset circuit and WDT function
• Built-in multiplexer and level magnification circuit with 4 input ports
• Built-in two standard stand alone OP-amp
• Built-in sub-switch circuit with feedback function
• Built-in 3 line serial data interface function
• Built-in low input/output operation 5 V voltage regulator function
• Built-in charge current/output voltage control circuit
Applications
Video camera, mobile phone and general battery charger for other digital equipments
Block Diagram
P.C 32
OPOUT1 36
VDET Iadj IDET
28 30 29
VCC VB VDD LED1 LED2 LED3 MSW1MSW2
20 21 19 3 4 5
78
Voltage
control OP
Voltage
regulator
Voltage
control
circuit
LED driver
circuit
Main SW
driver
Current
control OP
Current
control
circuit
Serial ⇒ Parallel
conversion circuit
CS IN CLOCK
SSW
9
Sub SW
driver
Driver
detection
circuit
Amp1
9
1
OPOUT2 35
Reset
circuit
WDT
Amp2
3
1
31
33 34 2 1 25 6
18 27 26 24 22 23 17
GND OPIN2− OPIN2+ OPIN1− OPIN1+ Ctd P.GND RESET TC WD CS DI CK DOUT
10 CD
16 ISENSE
12 IN1
13 IN2
14 IN3
15 IN4
11 REF
REJ03F0244-0200 Rev.2.00 Jun 16, 2008
Page 1 of 11
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