View M62240FP_357370.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

MITSUBISHI Dig./Ana.INTERFACE
M62240FP
SINGLE CHIP BATTERY CHARGER CONTROL IC GENERAL DESCRIPTION
The M62240FP is a general purpose battery charger control IC. It can control all of the sequence needed for battery charging, it also has functions such as detection of battery temperature, a protection against over-current/voltage, a safety timer and so on. Moreover, it can adapt to charge Ni-Cd, Ni-MH batteries by adding few peripheral components. The IC has the feedback control of the charge current and output voltage.
PIN CONFIGURATION (TOP VIEW)
ISET2 Vref1 LED Rc Cc ChgSW GND BattSW VTRSW
FEATURES
* Low voltage (3V) operation * Built-in following functions and circuits ; * CR oscillator for internal logic * Initialization timer and safety timer for V error detection and over-charging * D-A converter and shift registers to maintain the peak voltage of battery. * Main output SW driving circuits * LED driving circuit for displaying the status of the charging * System reset circuit for detecting the power supply voltage * Temperature detection circuit for the Ni-MH battery * Voltage and current control circuits for feedback to the primary side of the SMPS. * Protective functions including detection of over-voltage in charge mode and over-current in adapter mode and so on
1 2 3 4 5 6 7 8 9
20 ISET1 19 OC SET 18 IDET
M62240FP
17 Vcc 16 VDET 15 P.C 14 Batt T 13 Vref2 12 Batt 11 Batt +
TEST 10
Outline 20P2N-A
APPLICATION
Battery charger for video cameras and handheld telephones, etc.
BLOCK DIAGRAM
Vcc
17
SYSTEM RESET CHT.
Vref1 Vref2 2 13
STABLED PWR. SUP.
VDET IDET
16 18
LED 3
LED DRIVER
ChgSW 6
OUTPUT SW DRIVER
P.C 15
VOLTAGE SET-UP CKT.
8 BattSW CONTROL LOGIC 9 VTRSW
CURRENT SET-UP CKT.
ISET1 20 ISET2 1
OSCILLATOR CLOCK GEN. CKT.
OVER-CURRENT DET. CKT.
BATTERY TEMP DET. CKT
14 Batt T 11 Batt + 12 Batt -
-V ERROR DET. PREV. LOGIC
BATT. VOLTAGE DET. CKT.
TEST CKT.
7 GND
4 Rc
5 Cc
10
19
Test OCSET
(1/ 6)
9703
MITSUBISHI Dig./Ana.INTERFACE
M62240FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
EXPLANATION OF TERMINALS
Pin No. 3 4, 5 6 7 8 9 10 11 12 14 13 15 16 18 19 20, 1 2 17 Symbol LED Rc, Cc Chg SW GND Batt SW VTR SW Test Batt + Batt Batt T Vref2 P.C V DET I DET OC SET Iset1, 2 Vref1 Vcc LED drive (Open collector outputs) Setting the oscillating frequency of the internal clocks. The SW drive terminal used for charging battery. (Open collector outputs) Ground Checking whether a bettery is mounted or not. (It has a pull-up resistor) Detecting VTR connection. (It has a pull-up resistor) Test mode set-up. (It has a pull-up resistor) This is connected to the + terminal of the battery. This is connected to the - terminal of the battery. This is connected to the the temperature detecting terminal of the battery. The voltage reference terminal for temperature detection. This is connected to the photo-coupler used for feedback. (It has a pull-up resistor) Monitoring the output voltage. Detecting the charging current or output current. Setting the over-current detection value in the adapter mode. These are used to the charging current. (Iset1 is for quick charge and Iset2 is for trickle charge) Setting the standard voltage for over-current set-up value and the charge current set-up. Power supply.
Function
(2/ 6)
9703
MITSUBISHI Dig./Ana.INTERFACE
M62240FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
ABSOLUTE MAXIMUM RATINGS (Ta=25C, unless otherwise noted)
Symbol Parameter Supply voltage Conditions Ratings Unit
Vcc
16 50 20 20 -0.5 -1 650 Ta=25C Ta>25C 6.5 -20 to +75 -40 to +125
V mA mA mA mA mA mW mW/C C C
IChgSW ChgSW terminal drive current ILED I P.C Iref1 Iref2 Pd K Topr Tstg
LED drive current P.C drive current Vref1 output current Vref2 output current Power dissipation Thermal derating Operating temperature Storage temperature
Note Polarity of current: The direction of current flowing into the IC is equivalent to the positive (+). The direction of current flowing out of the IC is equivalent to the negative (-). The voltage applied to the open collector output terminal should be less than the absolute maximum voltage of the power supply. The voltage difference between the negative terminal of the battery and the GND terminal should be 0 to 0.6V.
(3/ 6)
9703
MITSUBISHI Dig./Ana.INTERFACE
M62240FP
SINGLE CHIP BATTERY CHARGER CONTROL IC ELECTRICAL CHARACTERISTICS (Vcc=7V,Ta=25C,unless otherwise noted) All device
Symbol Vcc Icc Parameter Supply voltage Circuit current Vcc=7V when quick charge Test conditions Min 3.0 10.0 2.70 20.0 2.80 Limits Typ Max 15.0 30.0 2.90 Unit V mA V
VTHVCC Power supply detecting voltage
Reference
Symbol Vref1 Vref2 Symbol IOCSET ISET1-1 ISET1-2 ISET2-1 ISET2-2 Parameter
Vref1 output voltage Vref2 output voltage
Test conditions Iref1=150A Iref2=350A Test conditions VOCSET=220mV
Excluding charging time When charging Excluding trickle charging time When trickle charging
Limits Min Typ 1.21 1.25 1.73 1.80 Limits Typ 50 50
Max 1.30 1.87
Unit V V Unit A
Parameter
OCSET terminal flow out current ISET1 terminal flow out current 1 ISET1 terminal flow out current 2 ISET2 terminal flow out current 1 ISET2 terminal flow out current 2
Min -1 30 -1 30 -1
Max 85 85
A A A A
Driver
Symbol VsatChgSW VsatLED Parameter
ChgSW terminal output flow out current
Test conditions IChgSW=30mA ILED=10mA
Min
Limits Typ 0.3 0.3
Max 0.6 0.6
Unit V V
LED output low voltage
Control Section
Symbol VIN IBias VPCL Parameter
Range of input voltage Input bias current P.C output low voltage
Test conditions
Min 0 -1
Limits Typ
Max Vcc
Unit V A V
IP.C=10mA
0.3
0.6
Each SW Detection Terminal
Symbol IBattSW Parameter
Batt SW terminal flow out current
Test conditions
Vcc=7V,VBattSW=0V Vcc=7V Vcc=7V,VVTRSW=0V Vcc=7V
Limits Min Typ -240 -140 3.0 -240 3.0 4.0 -140 4.0
Max -80 5.0 -80 5.0
Unit A V A V
VTHBatt Batt SW terminal threshold voltage IVTRSW VTR SW terminal flow out current VTHVTR VTR SW terminal threshold voltage
(4/ 6)
9703
MITSUBISHI Dig./Ana.INTERFACE
M62240FP
SINGLE CHIP BATTERY CHARGER CONTROL IC Internal Voltage Set-up
Symbol VVTR VCHG Parameter
Set-up output voltage at VTR mode Set-up output voltage at charge mode When quick charging When trickle charging When VTR mode
Test conditions
Min 828 1.21 124.8 11.52 211.2 0.40 0.91 70 0.91 0.82
Limits Typ 864 1.26 130 12.0 220 0.54 0.95 100 0.97 0.86
Max 900 1.30 135.2 12.48 228.8 0.68 0.99 130 1.01 0.90
Unit mV V mV mV mV V V mV V V
VISET1 Iset1 set-up voltage VISET2 Iset2 set-up voltage VOCSET OCSET set-up voltage VCHG VOVP V- V VO/H
Voltage at the start of quick charging Over-voltage set-up voltage -V detection set-up voltage
after initialization timer has passed
VVTHH1 Temperature detection set-up voltage
Temperature at the start of charging
Over-heating detection set-up voltage Charge stop temperature
Internal Voltage Set-up
Symbol fosc Tm1 Tm2 Tms1 Tms2 Toc Parameter
Oscillation frequency Initialization timer 1 Initialization timer 2 Safety timer 1 Safety timer 2 Over-current detection time
Test conditions
Rc=30K,Cc=2200pF Battery voltage < 5V Battery voltage 5V When quick charging When trickle charging When VTR mode
Min 9.42 18.4 4.6 4.6 4.6 9.2
Limits Typ 20.0 5.0 5.0 5.0 10.0
Max 21.6 5.4 5.4 5.4 10.8
Unit KHz min min hr hr sec
10.24 11.06
Note: Each timer is set at an oscillation frequency of 10.24KHz.
(5/ 6)
9703
R2 8.8K R3 1.2K
To VTR
R1 0.1 R5 D2 Q1 P.C R4 CP1 CP2 15 P.C VDET IDET Chg SW R8 Batt 9K R9 1K Batt 12
T
APPLICATION EXAMPLE
D1
C2
17 R6 6 11
16
18
Vcc
LED1
(6/ 6)
3 C1 (CHARGE LED)
To Battery
T
M62240FP
Batt R10 Vref2 13 3K 14 Batt SW 8 ISET1 ISET2 Test GND 7 R13 11.26K R14 1.12K R15 120 20 10 N.C 1 VTR SW 9
SW2
Rc 2 19 R11 20.6K R12 4.4K
Cc
Vref1 OCSET
SW3
4
Rc
5
30K Cc 2200P
SINGLE CHIP BATTERY CHARGER CONTROL IC
MITSUBISHI Dig./Ana.INTERFACE
M62240FP
9703

▲Up To Search▲

Price & Availability of M62240FP

	To Download M62240FP Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .