AOZ9004DI-00 AOSMD [Alpha & Omega Semiconductors], AOZ9004DI-00 Datasheet

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AOZ9004DI-00

Manufacturer Part Number
AOZ9004DI-00
Description
Single-Cell Battery Protection IC
Manufacturer
AOSMD [Alpha & Omega Semiconductors]
Datasheet
General Description
The AOZ9004D 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 AOZ9004D is available in a 2mm x 5mm 4-pin DFN
package and is rated over a -40°C to +85°C ambient
temperature range.
Typical Application
Rev. 1.1 August 2008
Lithium Polymer
Lithium-Ion or
Single-Cell
Battery
Figure 1. Typical Application
www.aosmd.com
C1
0.1μF
Features
Applications
Integrated common-drain N-channel MOSFET
High-accuracy voltage detection circuit
±20% accurate internal detection delay times
Charger connection pin withstands up to 28V
Wide operating temperature range: -40°C to +85°C
Low current consumption
Small 2mm x 5mm 4-pin DFN package
Lithium-ion rechargeable battery packs
Lithium-polymer rechargeable battery packs
(external capacitors are unnecessary)
Overcharge detection accuracy ±25mV (+25°C),
±30mV (-5°C to +55°C)
Overcharge release accuracy ±50mV
Over-discharge detection accuracy ±50mV
Over-discharge release accuracy ±100mV
Discharge over-current detection accuracy ±15mV
Load short-circuit detection accuracy ±200mV
Charge over-current detection accuracy ±30mV
3.0
+25°C
AOZ9004D
µ
VDD
VSS
A (typ.), 5.5
4
1
R1
200Ω
OUTM
Single-Cell Battery Protection IC
VM
3
2
µ
A (max.) in operation mode at
AOZ9004D
R2
2kΩ
EB+
EB-
Page 1 of 16

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AOZ9004DI-00 Summary of contents

Page 1

General Description The AOZ9004D 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 ...

Page 2

... Notes: 1. The delay times can have the range specified in Table 2. Please contact our Sales department if you wish to order non-standard values and for additional information. 2. Combination 2 is the default delay time combination for AOZ9004DI-00 and AOZ9004DI-01. Table 2. Delay Time Selection Range Symbol ...

Page 3

Pin Configuration Pin Description Pin Number Pin Name 1 VSS Ground. VSS is the source of the internal Discharge MOSFET. Connect VSS directly to the cathode of lithium-ion/lithium polymer battery cell. 2 OUTM Output Pin. OUTM is the source of ...

Page 4

Block Diagram R1 220Ω VDD Single-Cell C1 Lithium-Ion/ 0.1μF Lithium-Polymer Battery VSS Battery Protection IC AOZ9004D Absolute Maximum Ratings Exceeding the Absolute Maximum ratings may damage the device. Parameter MOSFET ...

Page 5

Electrical Characteristics T = 25°C unless otherwise specified. Parameters specified over T A production tested. Symbol Parameter DETECTION VOLTAGE V Overcharge Detection Voltage CU V Overcharge Release Voltage CL V Over-Discharge Detection DL Voltage ( 2.0 to 3.0 V, Adjustable) ...

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Electrical Characteristics (Continued 25°C unless otherwise specified. Parameters specified over T A production tested. Symbol Parameter INPUT CURRENT (Shutdown Function) I Current Consumption During OPE Operation I Current Consumption at PDN Shutdown INTEGRATED MOSFET BV Charge Control MOSFET ...

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Typical Performance Characteristics On-Regions Characteristics (Volts) DS On-Resistance vs. Drain Current and Gate Voltage 2. ...

Page 8

Theory of Operation Please refer to the Timing Diagrams for more informa- tion. Normal Status The AOZ9004D monitors the voltage between the V pin and V pin and the voltage difference between the SS V pin and V pin to ...

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The resistance (R between the V pin and V pin is not connected in the M DD discharge over-current detection status. When a battery is in the normal status, and the discharge current becomes abnormally higher ...

Page 10

Timing Diagrams Battery Voltage Charge Battery Current Discharge Pin DIOV Voltage EB- (1) Mode Mode: 1. Normal Mode 2. Overcharge Mode 3. Over-Discharge Mode Figure ...

Page 11

Battery Voltage Charge Battery Current t DIOV Discharge Pin V short Voltage V DIOV V SS Normal Load (1) Mode Mode: 1. Normal Mode 4. Discharge Over-current Mode Figure ...

Page 12

Battery Voltage Charge Battery Current Discharge Pin Voltage CIOV V EB- (3) Mode Mode: 1. Normal Mode 3. Over-Discharge Mode 5. Charge Over-Current Mode Figure 5. ...

Page 13

Applications Information Single-Cell Lithium-Ion or Lithium Polymer Battery A low-pass filter formed by R1 and C1 reduces supply voltage fluctuation on the VDD pin. R1 also provides ESD protection and serves as an current-limiting resistor in the event of charger ...

Page 14

Package Dimensions D A D/2 INDEX AREA 4 aaa (D/2xE/2) 2x TOP VIEW ccc SIDE VIEW R0.200 E4 EXPOSED TERMINAL TIP 5 D2 BOTTOM VIEW Notes A1, and A3 dimensions ...

Page 15

Tape and Reel Dimensions DFN2X5 Carrier Tape R0.3 Max Unit: mm Package DFN 2X5 2.41 5.34 1.10 1.50 1.50 ±0.10 ±0.10 ±0.10 +0.1/-0 +0.1/-0 DFN 2X5 Reel 30° Tape Size Reel Size M ...

Page 16

AOZ9004D Package Marking Fab & Assembly Location Rev. 1.1 August 2008 Option Code Z9004DIX Part Number Code FAY WLT Assembly Lot Code Year & Week Code www.aosmd.com AOZ9004D Page ...

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