M62254FP Datasheet PDF - Mitsubishi
| Part Number | M62254FP | |
| Description | Standard Battery Charger Controller | |
| Manufacturers | Mitsubishi | |
| Logo |  |
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Mitsubishi Semiconductor < DIGI•ANA Interface >
M62254FP
Standard Battery Charger Controller
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.
FEATURE
Built-in Reset circuit and WDT function
Built-in Multiplexer and Level magnification circuit with
4 input ports
Built-in two standard stand alone OPAmp
Built-in Sub-switch circuit with feedback function
Built-in 3 line serial data interface function
Built-in Low inputÅEoutput operation 5V voltage
regulator function
Built-in Charge current/output voltage control circuit
Pin layout(Top view)
OPIN1+ 1
OPIN1- 2
LED1 3
LED2 4
LED3 5
P.GND 6
MSW1 7
MSW2 8
SSW 9
CD 10
REF 11
IN1 12
IN2 13
IN3 14
IN4 15
ISENSE 16
DOUT 17
RESET 18
36P2R
APPLICATIONS
Video camera, Hand carry telephone and general battery
charger for other digital equipments
36 OPOUT1
35 OPOUT2
34 OPIN2+
33 OPIN2-
32 P.C
31 GND
30 Iadj
29 IDET
28 V DET
27 TC
26 WD
25 Ctd
24 CS
23 CK
22 DI
21 VB
20 Vcc
19 VDD
Block diagram
V DET Iadj IDET
28 30 29
Vcc VB VDD LED1 LED2 LED3 MSW1 MSW2
20 21 19 3 4 5
78
SSW
9
P.C 32
OPOUT1 36
OPOUT2 35
Voltage
control OP
+
-
Current
control OP
+
-
+
-
+
-
Voltage
regulator
Voltage
ccoirncturiot l
/
Current
control
circuit
/
/
LED driver
circuit
/
Main SW
driver
/
Serial Parallel
conversion circuit
/
/
CS IN CLOCK
Reset
circuit
WDT
31
GND
33 34 2 1 25 6
18 27 26 24 22 23 17
OPIN2- OPIN2+ OPIN1-OPIN1+ Ctd P.GND RESET TC WD CS DI CK DOUT
Sub SW
driver
Driver
detection
circuit
Amp1
91
+-
Amp2
+-
31
10 CD
16 ISENSE
12 IN1
13 IN2
14 IN3
15 IN4
11 REF
|
| |
 
Mitsubishi Semiconductor < DIGI•ANA Interface >
M62254FP
(3) Watch Dog Timer
V DD
TC
5V
VTH+∆VTH
0V
2.7V
0.2V
0V
Standard Battery Charger Controller
VTH
WD
0V
RESET
0V
t RT(1)
td t RT(2)
t WD
t WDIN
12
34
5 67
89
1 When VDD reaches 4.75V (VTH1+∆VTH1); after fixed amount of time (td), Reset pin outputs "High"
and begin charging of the condenser connected TC pin.
2 3 When TC pin reaches 2.7V (VTH2(H)); the condenser connected TC pin begin discharge, and the
Reset pin outputs "Low". During the Reset outputs "High" for the first time; the time of charge will
be tWD + tRT(1), since TC pin begin charging its condenser starting from 0V.
4 When TC pin drops to 0.2V (VTH2(L)); the Reset will outputs "High" again. At same time, TC pin will
begin charging again. Unless correct clock input is given to WD pin, the TC pin will repeats the
charging from 0.2V to 2.7V, and the Reset will also repeats "High" during the tWD cycle, and "Low"
during tRT(2) cycle.
5 6 When correct clock input is given to WD pin before TC pin reaches 2.7V, the Reset holds "High"
output.
7 8 When incorrect clock is given to WD pin, the TC pin will repeats the charging from 0.2V to 2.7V, and
the Reset will also repeats "High" during the tWD cycle, and "Low" during tRT(2) cycle.
9 When VDD drops down to 4.25V (VTH1), the Reset circuit will function, and it will output "Low" to
Reset pin and TC pin changes to discharging state.
(4) Reset circuit
∆VTH1
VTH1
VDD
0.65
RESET
Output
td
1
td
23
1 When VDD reaches 4.75V (VTH1+∆VTH1), the Reset outputs
"High" after fixed amount of time (td).
2 When VDD drops below 4.25V (VTH1), the Reset outputs
"Low"
3 When VDD reaches 4.75V (VTH1+∆VTH1) again, the Reset
outputs "High" after fixed amount of time (td). Also, Reset
output will be "Low" until VDD reaches 0.65V(typ).
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for M62254FP electronic component. |
| Information | Total 11 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ M62254FP.PDF Datasheet ] | |
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