EMLB180 EM Microelectronic, EMLB180 Datasheet - Page 4

• Manufacturer Part Number: EMLB180
• Description: Lithium Ion Battery Protection Module
• Manufacturer: EM Microelectronic

Charge Overcurrent
If an overcurrent is detected, charging is interrupted by opening the power switch. After 4 seconds, the switch is
closed again. If an overcurrent is detected again, the power switch reopens. This process is repeated every 4
seconds until:
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•
Discharge Overcurrent or short circuit
If an overcurrent is detected, discharging is interrupted by opening the power switch. The overcurrent counter is
incremented. After 2 seconds the switch is closed again. If an overcurrent is detected again, the power switch
reopens. This process is repeated every 2 seconds until:
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•
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Tabs
Nickel connection tabs are available to customer requirements. The following standard tab configurations exist:
The tab material is 99% Ni, 0.1mm thick.
The overcurrent is removed.
The battery voltage rises over the overcharge voltage limit.
The overcurrent is removed.
The battery voltage falls under the discharge voltage limit.
The overcurrent still exists after 64 attempts (which corresponds to a short circuit of 2 minutes). In this case
the power switch will be shut down permanently in order to interrupt the short circuit. The switch will be
closed again if a charge current is detected.
2.5 mm
4 mm
Tab Configuration 1
B-
P-
18 mm
9 mm
P+
4 mm
B+
EM MICROELECTRONIC-MARIN SA
2.5 mm
B-
© EM Microelectronic-Marin SA, 03/01 Rev.A/351, Preliminary
Tab configuration 2
4.5 mm
P-
PRELIMINARY
9 mm
P+
4.5 mm
4 mm
B+
4