|
If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
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 |
Price & Availability of M62240FP |
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
[Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |