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S-8231BDFN/CCD, S-8231BDFN-CCD, S-8232

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Info of S-8231BDFN/CCD
Info of S-8231BDFN-CCD
Info of S-8232

S-8231BDFN/CCD, S-8231BDFN-CCD, S-8232 Selling Leads, Datasheet

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S-8232 General Description

This IC is provided with the two overcurrent detection levels (VIOV1 and VIOV2) and the two overcurrent detection delay time (tIOV1 and tIOV2) corresponding to each overcurrent detection level.

If the discharging current becomes equal to or higher than a specified value (the VM terminal voltage is equal to or higher than the overcurrent detection voltage) during discharging under normal condition and it continues for the overcurrent detection delay time (tIOV) or longer, the discharging FET turns off to stop discharging. This condition is called an overcurrent condition. The VM and VSS terminals are shorted by the Rvsm resistor at this time. The charging FET turns off.

When the discharging FET is off and a load is connected, the VM terminal voltage equals the VCC potential.

The overcurrent condition returns to the normal condition when the load is released and the impedance between the EB- and EB+ terminals (see Figure 6 for a connection example) is 200MW or higher. When the load is released, the VM terminal, which and the VSS terminal are shorted with the Rvsm resistor, goes back to the VSS potential. The IC detects that the VM terminal potential returns to overcurrent detection voltage 1 (VIOV1) or lower and returns to the normal condition.

S-8232 Maximum Ratings

Item	Symbol	Applied Pins	Rating	Unit
Input voltage between VCC and VSS	VDS	VCC	VSS-0.3 to VCC+18	V
SENS Input terminal voltage	VSENS	SENS	VSS-0.3 to VCC+0.3	V
ICT Input terminal voltage	VICT	ICT	VSS-0.3 to VCC+0.3	V
VM Input terminal voltage	VVM	VM	VCC-18 to VCC+0.3	V
DO output terminal voltage	VDO	DO	VSS-0.3 to VCC+0.3	V
CO output terminal voltage	VCO	CO	VVM-0.3 to VCC+0.3	V
Power dissipation	PD		300	mW
Operating temperature range	Topr		-40 to +85	°C
Storage temperature range	Tstg		-40 to +125	°C

S-8232 Features

High input-voltage device (absolute maximum rating: 18 V)
Wide operating voltage range: 2.0 V to 16 V
The delay time for every detection can be set via an external capacitor. Each delay time for Overcharge detection, Overdischarge detection, Overcurrent        detection are"Proportion of hundred to ten to one."
Two overcurrent detection levels (protection for short-circuiting)
Internal auxiliary over voltage detection circuit (Fail safe for over voltage)
Internal charge circuit for 0V battery (Unavailable is option)
Low current consumption
        --Operation                     7.5 A typ.       14.2 A max (-40 to +85 °C)
        --Power-down mode       0.2 nA typ.        0.1 A max (-40 to +85 °C)
TSSOP package (8-pin) 6.4 mm*3.1 mm

S-8232 Typical Application

Lithium-ion rechargeable battery packs

S-8232 Connection Diagram

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