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AG103 Datasheet(PDF) 16 Page - Silver Telecom 2019
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AG103 Datasheet(HTML) 16 Page - Silver Telecom 2019
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V1.2 Sept 2019
© Silver Telecom 2019
Sealed Lead Acid Solar Battery Charger Module
6 Operating Temperature Range
For most applications the Ag103 will be positioned close to the battery and the maximum
operating temperature will be limited by the battery to 50
˚C. However if the battery is being
charged remotely, then the Ag103 can be operated from -20
˚C to +70˚C.
The Ag103 offers four primary protection circuits: -
7.1 Over Current & Short Circuit Protection
The Ag103 output has over current and short circuit protection. This is triggered when the
output current exceeds 200mA above the bulk charge current shown in Table 3. If an over
current fault is detected, the Ag103 will shut-down the DC-DC converter and the STAT
output will report an over current error.
7.2 Over Temperature Protection
This can only be activated if the thermal compensation thermistor is fitted. If the battery
temperature exceeds 50
˚C, the Ag103 will shut-down the DC-DC converter and the STAT
output will report an over temperature error.
7.3 Low Battery Terminal Voltage Protection
If the battery terminal voltage is <7V, the Ag103 Status output will report Mode 4 and the
Ag103 will remain idle and wait until a 12V battery has been connected.
This is primarily to protect the user from accidentally connecting a 6V battery to the Ag103.
It also protects the Ag103 from being connected to a damaged or a deep discharged
7.4 Deep Discharge Protection
The Ag103 constantly monitors the terminal voltage of the battery. If the load connected
draws too much power or has been constantly drawing power from the battery causing the
terminal voltage to fall below 10.5V, the Ag103 will disconnect the load from the battery to
stop it being deep discharged. The Ag103 will only allow the load to be reconnected once
the terminal voltage on the battery recovers to 12.5V or higher.
7.5 Battery Reversal
The Ag103 does not provide battery reversal protection, however Figure 9 shows a simple
method of providing this safety feature. This also provides protection for an over-current or
short on the Load Output pin.
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