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| 型号： | MC33348D-2 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 电源管理 |
| 英文描述： | LITHIUM BATTERY PROTECTION CIRCUIT FOR ONE CELL SMART BATTERY PACKS |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | PLASTIC, SOP-8 |
| 文件页数： | 1/12页 |
| 文件大小： | 184K |
| 代理商： | MC33348D-2 |
SEMICONDUCTOR
TECHNICAL DATA
LITHIUM BATTERY
PROTECTION CIRCUIT
FOR
ONE CELL
SMART BATTERY PACKS
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
1
8
7
6
5
2
3
4
(Top View)
Cell Voltage
Test
Ground
Charge Pump
Output
PIN CONNECTIONS
Order this document by MC33348/D
Discharge Gate
Drive Output
VCC
Charge Gate
Drive Output
Charge Gate Drive
Common/Discharge
Current Limit
1
The MC33348 is a monolithic lithium battery protection circuit that is
designed to enhance the useful operating life of a one cell rechargeable
battery pack. Cell protection features consist of internally trimmed charge
and discharge voltage limits, discharge current limit detection with a
delayed shutdown, and a virtually zero current sleepmode state when the
cell is discharged. An additional feature includes an on–chip charge pump
for reduced MOSFET losses while charging or discharging a low cell
voltage battery pack. This protection circuit requires a minimum number of
external components and is targeted for inclusion within the battery pack.
This MC33348 is available in standard SOIC 8 lead surface mount
package.
Internally Trimmed Charge and Discharge Voltage Limits
Discharge Current Limit Detection with Delayed Shutdown
Virtually Zero Current Sleepmode State when Cells are Discharged
Charge Pump for Reduced Losses with a Low Cell Voltage Battery Pack
Dedicated for One Cell Applications
Minimum Components for Inclusion within the Battery Pack
Available in a Low Profile Surface Mount Package
Ordering Information shown on following page.
Typical One Cell Smart Battery Pack
This device contains 1170 active transistors.
VCC
Charge Pump
Output
8
Charge
Gate Drive
Output
Discharge
Gate Drive
Output
4
6
5
Charge
Gate Drive
Common/
Discharge
Current Limit
7
1
3
2
Ground
Test
MC33348
Cell
Voltage
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
Motorola, Inc. 1997
Rev 1
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