GSAC-8507BC-1 Datasheet | STMicroelectronics

GSAC-8.507BC BATTERY CHARGER Type GSAC-8.507BC Vin 230 VRMS Vout 8.5 V Iout 700 m A Features Charge of Ni Cd or Ni MH batteries Switch mode constant current generation Three level charging current (fast, trickle, zero charging current) Overcharge detection by - ∆ V and ∆T/∆t under internal microprocessor control No discharge of the battery when charger is turned off Initial trickle charge for deeply discharged batteries Maximum battery voltage protection Maximum battery temperature protection Timer back up protection Output short circuit protection Detection of fault battery Charge status displayed by LED European or UK plug DESCRIPTION The GSAC-8.507BC is a high efficiency battery charger for connection to the mains and to be used with 5 cells Ni Cd and Ni MH batteries. Two versions of the INPUT PLUG ADAPTOR are available: EUROPEAN VERSION : GSAC-8.507BC-1 (ORDERING NUMBER) UK VERSION : GSAC-8.507BC-2 (ORDERING NUMBER) (See pag. 3 for mechanical data) February 1994 1/4 GSAC-8.507BC ELECTRICAL CHARACTERISTICS (Tamb = 25°C unless otherwise specified) Symbol Vin Ichf Icht Parameter AC Input Voltage Fast Charge Current Trickle Charge Current Test Conditions Ich = 0 to 0.7A Vin = 187 to 264 Vrms Vbattery = 5 to 8.2V Vin = 187 to 264 Vrms Vbattery = 1 to 5V or 0°C < Tbatt < 10°C or charge pleted Vin = 187 to 264 Vrms Vin = 187 to 264 Vrms Ich = 0.7A Vin = 187 to 264 Vrms Ich = 0.0A Vin = 187 to 264 Vrms Ich = 0.7A Vin = 187 to 264 Vrms Ich = 0.03 to 0.7A -20 -25 8.2 Min 187 0.65 20 Typ 230 0.70 30 Max 264 0.75 40 Unit Vrms A m A C Vbatt Tco tout fs Top Tstg Returned Charge Maximum Battery Voltage Protection Battery Temperature Cut Off Time Out Protection Duration Switching Frequency Operating Ambient Temperature Range Storage Temperature Range 95 8.5 50 2 100 +60 +85 8.7 % V °C hours k Hz °C °C Status Red ON Green ON - Fast charge (Ich = 0,7A) - Charge pleted (Ich = 0.03A) - Timer elapsed Anomalous battery conditions (Ich = 0.0A) - Initial Tbattery < 0 °C -...