M62240 Datasheet | Mitsubishi Electric

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 ponents. The IC has the feedback control of the charge current and output voltage. PIN CONFIGURATION (TOP VIEW) ISET2 Vref1 LED Rc Cc Chg SW GND Batt SW 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 SYSTEM RESET CHT. Vref1 Vref2 2...