STMicroelectronics GSAC-8.507BC Battery charger Datasheet

GSAC-8.507BC
BATTERY CHARGER
Type
Vin
Vout
Iout
GSAC-8.507BC
230 VRMS
8.5 V
700 mA
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 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 NiCd and NiMH 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
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GSAC-8.507BC
ELECTRICAL CHARACTERISTICS (Tamb = 25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Typ
Max
Unit
Vin
AC Input Voltage
Ich = 0 to 0.7A
187
230
264
Vrms
Ichf
Fast Charge Current
Vin = 187 to 264 Vrms
Vbattery = 5 to 8.2V
0.65
0.70
0.75
A
Icht
Trickle Charge Current
Vin = 187 to 264 Vrms
Vbattery = 1 to 5V or
0°C < Tbatt < 10°C
or charge completed
20
30
40
mA
8.2
8.5
C
Returned Charge
Vin = 187 to 264 Vrms
Vbatt
Maximum Battery
Voltage Protection
Vin = 187 to 264 Vrms
Ich = 0.7A
Tco
Battery
Temperature Cut Off
Vin = 187 to 264 Vrms
Ich = 0.0A
50
°C
tout
Time Out Protection
Duration
Vin = 187 to 264 Vrms
Ich = 0.7A
2
hours
fs
Switching Frequency
Vin = 187 to 264 Vrms
Ich = 0.03 to 0.7A
100
kHz
Top
Operating Ambient
Temperature Range
-20
+60
°C
Tstg
Storage Temperature
Range
-25
+85
°C
Status
Red ON
Green ON
Red Flashing
Green Flashing
OFF
95
%
8.7
V
Condition
- Fast charge
(Ich = 0,7A)
- Charge Completed
(Ich = 0.03A)
- Timer elapsed
Anomalous battery conditions
(Ich = 0.0A)
- Initial Tbattery < 0 °C
- Initial Tbattery > 40 °C
- Tbattery > 50 °C
- Faulty battery
(Ich = 0.03A)
- Initial charge of deeply discharged batteries
- 0 °C < Tbatt < 10 °C
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 fast charge and trickle charge currents,
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Min
and different time out are available on request
(Maximum charge current cannot exceed 1A).
3 - For connector to the battery pack please consult
factory.
GSAC-8.507BC
CONNECTION DIAGRAM AND MECHANICAL DATA
European Plug Version
36 (1.42)
92 (3.62)
2 (0.07)
3 (0.12)
77 (3.03)
20 (0.79)
15 (0.59)
Bicolor LED
5 (0.20)
18
(0.71)
52.5
(2.07)
6 (0.24)
90
(3.54)
1 (0.04)
8.5
(0.33)
8 (0.31)
18.5
(0.73)
4 (0.16)
7 (0.28)
3 Wires:
8.8 (0.35)
18.5
(0.73)
4 (0.16)
+ Vout RED
- Vout BLACK
NTC Green
34 (1.34)
13.5 (0.53)
Total cable length
= 2000 (78.8)
UK Plug Version
36 (1.42)
92 (3.62)
2 (0.07)
3 (0.12)
77 (3.03)
20 (0.79)
15 (0.59)
Bicolor LED
5 (0.20)
18
(0.71)
52.5
(2.07)
6 (0.24)
87
(3.43)
1 (0.04)
8.5
(0.33)
22.2 (0.87)
11.5
(0.45)
18
(0.71)
8 (0.31)
22.5
(0.86)
4 (0.16)
European View
6.35
(0.25)
8 (0.31)
4 (0.16)
50 (1.97)
9.8
(0.39)
22.2
(0.87)
14
(0.55)
Output connector to be defined according to customer specifications
Dimensions in mm (inches).
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GSAC-8.507BC
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
© 1994 SGS-THOMSON Microelectronics – All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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