SGS Thomson Microelectronics GSAC-8.507BC Datasheet
GSAC-8.507BC
BATTERY CHARGER
Type V
GSAC-8.507BC 230 V
in
RMS
V
out
8.5 V 700 mA
I
out
FEATURES
Charge of NiCd or NiMH 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 batter ies
Maximum battery voltage protect i on
Maximum battery temperat ure protect i on
Timer back up protection
Output short circuit protection
Detection of fault battery
Charge status displayed by LED
European or UK plug
DESCRIPT ION
The GSAC-8.507BC is a high efficiency battery charger for connection to the mains and to be used with
5 cells NiCd and NiMH batteries.
Two versions of the INPUT PLUG ADA PTOR are available:
EUROPEAN VERSION : GSAC-8.507BC-1 (ORDERING NUMBER)
UK VERSION : GSAC-8.507BC-2 (ORDE RING NUMBER)
(See pag. 3 for mechanical data)
February 1994 1/4
GSAC-8.507BC
ELECTRICAL CHARACTERISTICS (T
Symbol
V
in
I
chf
I
cht
AC Input Voltage Ich = 0 to 0.7A 187 230 264 Vrms
Fast Charge Current V
Trickle Charge Current V
Parameter Test Conditions Min Typ Max Unit
= 25°C unless otherwise specified)
amb
= 187 to 264 V
in
V
battery
= 187 to 264 V
in
V
battery
0°C < Tbatt < 10°C
or charge completed
C Returned Charge Vin = 187 to 264 V
V
T
t
T
T
Maximum Battery
batt
Voltage Protection
Battery
co
Temperature Cut Off
Time Out Protection
out
Duration
Switching Frequency Vin = 187 to 264 V
f
s
Operating Ambient
op
Temperature Range
Storage Temperature
stg
Range
Vin = 187 to 264 V
Ich = 0.7A
Vin = 187 to 264 V
Ich = 0.0A
V
in
Ich = 0.7A
I
ch
= 187 to 264 V
= 0.03 to 0.7A
= 5 to 8.2V
= 1 to 5V or
rms
rms
rms
rms
rms
rms
rms
0.65 0.70 0.75 A
20 30 40 mA
95 %
8.2 8.5 8.7 V
50 °C
2 hours
100 kHz
-20 +60 °C
-25 +85 °C
Status Condition
Red ON
- Fast charge
(Ich = 0,7A)
- Charge Completed
Green ON
(Ich = 0.03A)
- Timer elapsed
Anomalous battery conditions
(Ich = 0.0A)
Red Flashing
- Initial T
- Initial T
-T
battery
- Faulty battery
battery
battery
> 50 °C
< 0 °C
(Ich = 0.03A)
Green Flashing
- Initial charge of deeply discharged batteries
-0 °C < T
batt
< 10 °C
OFF Battery not connected
NOTES
1 - The battery temperature detection is a function
of the characteristics of the NTC resistor used
inside the battery pack. Please consult factory.
2 - Different fas t charge and trickle charge cur rents,
> 40 °C
and different time out are available on request
(Maximum charge current cannot exc eed 1A).
3 - For connector to the batt ery pack please consult
factory .
2/4
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