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MC33349 Datasheet

LITHIUM BATTERY PROTECTION CIRCUIT FOR ONE CELL SMART BATTERY PACKS

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Lithium Battery Protection
Circuit for One Cell
Battery Packs
The MC33349 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, charge and discharge current limit detection,
and a virtually zero current sleepmode state when the cell is discharged.
This protection circuit requires a minimum number of external components
and is targeted for inclusion within the battery pack. This MC33349 is
available in the SOT–23 6 lead surface mount package.
Internally Trimmed Charge and Discharge Voltage Limits
Charge and Discharge Current Limit Detection
Virtually Zero Current Sleepmode State when Cells are Discharged
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.
MC33349
LITHIUM BATTERY
PROTECTION CIRCUIT
FOR
ONE CELL
SMART BATTERY PACKS
SEMICONDUCTOR
TECHNICAL DATA
6
1
Typical One Cell Smart Battery Pack
N SUFFIX
PLASTIC PACKAGE
CASE 1262
(SOT–23)
0.1 µF
100
5
6
0.01 µF 4
0.1 µF
MC33349
1 32
1.0 k
PIN CONNECTIONS
DO 1
6 Gnd
P– 2
CO 3
5 Vcell
4 Ct
(Top View)
This device contains 264 active transistors.
This document contains information on a product under development. Motorola reserves the
rigMhtOtoTcOhaRnOgeLoAr dAiscNonAtiLnuOeGthisICproDdEucVt IwCitEhoDutAnoTtAice.
© Motorola, Inc. 1998
Rev 0
1


Motorola Electronic Components Datasheet

MC33349 Datasheet

LITHIUM BATTERY PROTECTION CIRCUIT FOR ONE CELL SMART BATTERY PACKS

No Preview Available !

MC33349
Device
MC33349N–1
MC33349N–2
MC33349N–3
MC33349N–4
MC33349N–5
MC33349N–6
MC33349N–7
MC33349N–8
MC33349N–9
MC33349N–10
ORDERING INFORMATION
Charge
Charge
Overvoltage Overvoltage
Threshold (V) Hysteresis (mV)
Discharge
Undervoltage
Threshold (V)
Current Limit
Threshold (mV)
4.2 150
4.2 75
4.25 150
4.25 75
4.3 150
200 2.3
4.3 75
4.35 150
4.35 75
4.65 150
4.65 75
Operating
Temperature Range
TA = –40 to 85°C
Package
SOT–23
MAXIMUM RATINGS
Ratings
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInput Voltage
Symbol
VIR
Value
Unit
V
Discharge Gate Drive Output (Pin 1) to Gnd (Pin 6)
5.0 to –1.0
Charge Gate Drive Common/Current Limit (Pin 2) to Vcell
(Pin 5)
1.0 to –18
Charge Gate Drive Output (Pin 3) to Vcell (Pin 5)
1.0 to –18
Overvoltage Delay Capacitor (Pin 4) to Gnd (Pin 6)
Cell Voltage (Pin 5) to Gnd (Pin 6)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁThermal Resistance, Junction–to–Air
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁN Suffix, SOT–23 Plastic Package, Case 1262
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOperating Junction Temperature (Note 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁStorage Temperature
RθJA
TJ
Tstg
5.0 to –1.0
5.0 to –1.0
TBD
–40 to 85
–55 to 125
°C/W
°C
°C
2 MOTOROLA ANALOG IC DEVICE DATA


Part Number MC33349
Description LITHIUM BATTERY PROTECTION CIRCUIT FOR ONE CELL SMART BATTERY PACKS
Maker Motorola
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MC33349 Datasheet PDF






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