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| 型号： | MC33346DTB |
| 厂商： | MOTOROLA INC |
| 元件分类： | 电源管理 |
| 英文描述： | LITHIUM BATTERY PROTECTION CIRCUIT FOR THREE OR FOUR CELL SMART BATTERY PACKS |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24 |
| 封装： | PLASTIC, TSSOP-24 |
| 文件页数： | 1/3页 |
| 文件大小： | 105K |
| 代理商： | MC33346DTB |
LITHIUM BATTERY
PROTECTION CIRCUIT
FOR
THREE OR FOUR CELL
SMART BATTERY PACKS
DTB SUFFIX
PLASTIC PACKAGE
CASE 948H
(TSSOP–24)
24
1
Order this document from Analog Marketing
DW SUFFIX
PLASTIC PACKAGE
CASE 751E
(SO–24L)
24
1
1
The MC33346 is a monolithic lithium battery protection circuit that is
designed to enhance the useful operating life of three or four cell
rechargeable battery packs. Cell protection features consist of
independently programmable charge and discharge limits for both voltage
and current with a delayed current shutdown, cell voltage balancing with
on–chip balancing resistors, and virtually zero current sleepmode state
when the cells are discharged. Additional features consists of a six wire
microcontroller interface bus that can selectively provide a pulse output that
represents the internal reference voltage, cell voltage, cell current and
temperature, as well as control the states of four internal balancing and two
external MOSFET switches. A microcontroller time reference output is
available for gas gauge implementation. This protection circuit requires a
minimum number of external components and is targeted for inclusion within
the battery pack. The MC33346 is available in standard and low profile 24
lead surface mount packages.
Independently Programmable Charge and
Discharge Limits for Both Voltage and
Current
Delayed Current Shutdown
Cell Voltage Balancing with On–Chip
Resistors
Six Wire Microcontroller Interface Bus
Data Output for Reference, Voltage, Current,
and Temperature
Microcontroller Time Reference Output for
Gas Gauging
Virtually Zero Current Sleepmode State when
Cells are Discharged
Programmable for Three or Four Cell
Applications
Minimum External Components for Inclusion
within the Battery Pack
Available in Low Profile Surface Mount
Packages
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC33346DW
TA= –40
TA = –40
°
to +85
°
C
SO–24L
MC33346DTB
TSSOP–24
Cell
Program
18
VC
Supply
17
A–to–D
Converter
Period
Typical Four Cell Smart Battery Pack
This device contains 4760 active transistors.
Charge
Gate Drive
Common
21
Cell Voltage
CDischarge
Current Limit
MC33346
Discharge Voltage
Threshold
2
4
Charge Voltage
Threshold
5
1
Data Output
Ref/V/I/T
Cell Voltage
Return
9
Charge Gate
Turn Off/
Test Input
3
Cell 3
24
Cell 2
23
Cell 1
22
Ground
Temp
8
19
Interrupt Output
Reference Clock Output
11
15
16
12
10
Data
Input
13
Address
Input
Discharge
Gate Drive
Output
14
Charge
Current
Limit
6
Current
Sense
Common
7
Charge
Gate Drive
Output
20
This document contains information on a product under development. Motorola reserves the
right to change or discontinue this product without notice.
Motorola, Inc. 1996
Issue 1
相关PDF资料 |
PDF描述 |
|---|---|
| MC33346 | 40 AMP MINI-ISO AUTOMOTIVE RELAY |
| MC33346DW | LITHIUM BATTERY PROTECTION CIRCUIT FOR THREE OR FOUR CELL SMART BATTERY PACKS |
| MC33349N-1 | LITHIUM BATTERY PROTECTION CIRCUIT FOR ONE CELL SMART BATTERY PACKS |
| MC33349N-3R1 | Lithium Battery Protection Circuit for One Cell Battery Packs |
| MC33349N-4R1 | Lithium Battery Protection Circuit for One Cell Battery Packs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33348D-006 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC33348D-2R2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC33350SN-7T1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC33351ADTB-001 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC33351DTB-001 | 制造商:ON Semiconductor 功能描述: |
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