AOZ9256DI

AOZ9256DI Datasheet

AOZ9256DI

Part	Datasheet
AOZ9256DI	AOZ9256DI (pdf)

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AOZ9256DI Single-Cell Battery Protection IC with Integrated MOSFET The AOZ9256DI is a battery protection IC with integrated dual common-drain N-channel MOSFET. The device includes accurate voltage detectors and delay circuits, and is suitable for protecting single-cell lithium-ion/lithium-polymer rechargeable battery packs from overcharge, over-discharge, and over-current conditions. The AOZ9256DI is available in a 2mm x 4mm 6-pin DFN package and is rated over a -40°C to +85°C ambient temperature range. Integrated Common-Drain N-Channel MOSFET typ. source to source on resistance High-accuracy voltage detection circuit Overcharge detection accuracy 25mV 45mV -10°C to Overcharge release accuracy 40mV Over-discharge detection accuracy 100mV Over-discharge release accuracy 100mV Discharge over-current detection accuracy 10mV Charge over-current detection accuracy 15mV 20% accurate internal detection delay times external capacitors are unnecessary Charger connection pin withstands up to 24V Wide operating temperature range -40°C to Low current consumption typ. , max. in operation mode at Small 2mm x 4mm 6-pin DFN package Lithium-ion rechargeable battery packs Lithium-polymer rechargeable battery packs Typical Applications Circuit C1 0.1uF OUTM NC AOZ9256DI NC 330Ω R2 1kΩ Page 1 of 16 AOZ9256DI Ordering Information Over- Overcharge discharge Detection Release Detection Voltage Voltage Overdischarge Release Voltage VDU1 Overdischarge Release Voltage VDU2 Discharge Load Short- Charge Over- circuiting Over- current Threshold VDIOV * Detection Threshold VSHORT current Power 0V Battery Threshold Down Charge VCIOV * Function AOZ9256DI 4.375V 4.175V 2.50V 2.90V 2.51V 0.13V 0.50V -0.125V No AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit for additional information. * Please refer to page 9 for calculation of charge and discharge current limit. Table Delay Time Part Number AOZ9256DI Overcharge Detection Delay Time tCU 1.0s Over-discharge Detection Delay Time tDL 64ms Discharge Over-current Detection Delay Time tDIOV Load Shortcircuiting Detection Delay Time tSHORT Charge Over-current Detection Delay Time tCIOV Pin Configuration VSS 1 NC 2 VDD 3 2x4 DFN-6 Top View 6 OUTM 5 NC 4 VM Pin Description Pin Name NC VSS

PDF Datasheet Preview

AOZ9256DI

Single-Cell Battery Protection IC with Integrated MOSFET

The AOZ9256DI is a battery protection IC with integrated dual common-drain N-channel MOSFET. The device includes accurate voltage detectors and delay circuits, and is suitable for protecting single-cell lithium-ion/lithium-polymer rechargeable battery packs from overcharge, over-discharge, and over-current conditions.

The AOZ9256DI is available in a 2mm x 4mm 6-pin DFN package and is rated over a -40°C to +85°C ambient temperature range.

Integrated Common-Drain N-Channel MOSFET typ. source to source on resistance

High-accuracy voltage detection circuit Overcharge detection accuracy 25mV 45mV -10°C to Overcharge release accuracy 40mV Over-discharge detection accuracy 100mV Over-discharge release accuracy 100mV Discharge over-current detection accuracy 10mV Charge over-current detection accuracy 15mV
20% accurate internal detection delay times external capacitors are unnecessary

Charger connection pin withstands up to 24V Wide operating temperature range -40°C to Low current consumption
typ. , max. in operation mode at

Small 2mm x 4mm 6-pin DFN package

Lithium-ion rechargeable battery packs Lithium-polymer rechargeable battery
packs

Typical Applications Circuit

C1 0.1uF

OUTM

NC AOZ9256DI NC
330Ω

R2 1kΩ

Page 1 of 16

AOZ9256DI
Ordering Information

Over-

Overcharge discharge

Detection Release Detection

Voltage

Voltage

Overdischarge Release

Voltage VDU1

Overdischarge Release

Voltage VDU2

Discharge Load Short- Charge

Over- circuiting Over-
current Threshold

VDIOV *

Detection Threshold VSHORT
current Power 0V Battery Threshold Down Charge

VCIOV * Function

AOZ9256DI 4.375V 4.175V 2.50V 2.90V 2.51V 0.13V
0.50V -0.125V No

AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit for additional information.
* Please refer to page 9 for calculation of charge and discharge current limit.

Table Delay Time

Part Number AOZ9256DI

Overcharge Detection Delay Time tCU
1.0s

Over-discharge Detection Delay Time tDL
64ms

Discharge Over-current

Detection Delay Time
tDIOV

Load Shortcircuiting Detection Delay Time tSHORT

Charge Over-current

Detection Delay Time
tCIOV

Pin Configuration

VSS 1 NC 2

VDD 3
2x4 DFN-6 Top View
6 OUTM 5 NC 4 VM

Pin Description

Pin Name NC VSS

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AOZ9256DI Datasheet file may be downloaded here without warranties.

Datasheet ID: AOZ9256DI 516343