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SC8201 PDF даташит
| Спецификация SC8201 изготовлена «Silan Microelectronics» и имеет функцию, называемую «ONE-CELL LI BATTERY PROTECTION CIRCUIT». |
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Детали детали
| Номер произв | SC8201 |
| Описание | ONE-CELL LI BATTERY PROTECTION CIRCUIT |
| Производители | Silan Microelectronics |
| логотип |  |
9 Pages
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SC8201
ONE-CELL LI+ BATTERY PROTECTION CIRCUIT
DESCRIPTION
SC8201 is a LiFePO4 battery protection circuit. It is suitable for
protecting LI+ battery against damage from over charge, over
discharge, and over current. It contains high accurate voltage
Detection and delay circuits.
FEATURES
* Low consumption current
VDD=3.4V, IDD=(Typ. 3μA)
VDD=1.8V, IDD=(Typ. 0.3μA)
* Wide supply voltage range: (1.8V~8V)
* Over-charge detection voltage 3.65V, Over-charge release
voltage 3.45V.
* Over-discharge detection voltage 2.00V, Over-discharge
release voltage 2.50V.
* Over current detect voltage 0.15V, Short Current detection
voltage 1.00V.
* Overcharge/over-discharge/over-current detection delay times
are generated by an internal circuit
* Charger detection
* Over current protection
* Small package
ORDERING INFORMATION
Device
SC8201
Package
SOT-23-6
Seal Name
8201
APPLICATIONS
* Protection IC for One-Cell LiFePO4
Battery Pack
BLOCK DIAGRAM
www.DataSheet4U.com
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.3 2008.06.25
Page 1 of 10
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SC8201
ABSOLUTE MAXIMUM RATING
Characteristics
Supply Voltage
OC Output Pin Voltage
OD Output Pin Voltage
CSI Input Pin Voltage
Operating Temperature Range
Storage Temperature Range
Symbol
VDD
VOC
VOD
VCSI
Topr
Tstg
Value
VSS-0.3 ~ VSS+12
VDD-15 ~ VDD+0.3
VSS-0.3 ~ VDD+0.3
VDD-15 ~ VDD+0.3
-40 ~ + 85
-40 ~ +125
Unit
V
V
V
V
°C
°C
ELECTRICAL CHARACTERISTICS (Tamb=25°C, unless otherwise specified)
Characteristics
Operating Voltage
Operating Voltage
Current Consumption
Supply Current
Power Down Current
Detection Voltage
Over Charge Detection Voltage
Over Charge Release Voltage
Over Discharge Detection Voltage
Over Discharge Release Voltage
Over Current 1 Detection Voltage
Over Current (Short Current)Detection
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Over Current Reset Resistor
Charger Detection Voltage
Delay Time
Over Charge Detection Delay Time
Over Discharge Detection Delay Time
Over Current 1 Detection Delay Time
Over Current 2(Short Current)Detection
Delay Time
Other
Symbol
VDD
IDD
IPD
VOCU
VOCR
VODL
VODR
VOI1
VOI2
Rshort
VCH
TOC
TOD
TOI1
TOI2
OC Pin Output “H” Voltage
Voh1
Conditions
VDD=3.4V
VDD=1.8V
VDD=3.6V
VDD=3.6V
VDD=3.6V~2.0V
VDD=3.6V
VDD=3.6V
OC Pin Output “L” Voltage
Vol1
OD Pin Output “H” Voltage
Voh2
OD Pin Output “L” Voltage
Vol2
Min. Typ. Max.
1.8 8.0
3.0 6.0
0.3 0.6
3.620
3.415
1.90
2.40
0.13
0.80
400
-0.8
3.650
3.450
2.00
2.50
0.15
1.00
500
-0.5
3.680
3.485
2.10
2.60
0.17
1.20
600
-0.2
150 340 500
80 200 300
5 13 20
5 50
VDD-0.1 VDD-0.02
0.01
VDD-0.1 VDD-0.02
0.01
0.1
0.1
Unit
V
μA
μA
V
V
V
V
V
V
kΩ
V
ms
ms
ms
μs
V
V
V
V
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.3 2008.06.25
Page 2 of 10
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PIN CONFIGURATION
SC8201
PIN DESCRIPTIONS
PIN No.
1
2
3
4
5
6
Symbol
OD
CSI
OC
TD
VDD
VSS
I/O Description
O FET gate connection pin for discharge control.
I/O Detecting pin for current sense, charger detect.
O FET gate connection pin for charge control.
I Test pin for delay time.
I Positive power input pin.
I Negative power input pin.
FUNCTION DESCRIPTIONS
Normal state
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If VODL<VDD<VOCU and VCH<VCSI<VOI1, M1 and M2 (refer to the typical application circuit, they are used to
control the charge/discharge state) are both turned on. The charging and discharging processes can be operated
normally at this time.
Overcharge Detection
When enter overcharge state from normal state, the battery voltage can be detected from VDD. When the
battery voltage VDD is larger than VOCU over a delay time of TOC, then enter the overcharge state from normal
state and M2 is to be turned off.
Release of Overcharge State
There are two ways to return to normal state from overcharge state.
• If the battery is self discharging and VDD<VOCR occurs, M2 is to be turned on and back to normal state.
• Remove the charger and connected to a load. If VOCR<VDD<VOCU and VCSI>VOI1 occurs, M2 is to be turned
on and back to normal state.
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.3 2008.06.25
Page 3 of 10
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