UCC3952-1 Datasheet, PDF (1/8 Pages) Texas Instruments – SINGLE-CELL LITHIUM-LON BATTERY PROTECTION IC

UCC3952-1, UCC3952-2, UCC3952-3, UCC3952-4
SingleĆCell LithiumĆIon Battery Protection IC
D Protects Sensitive Lithium-Ion Cells From
Overcharging and Over-Discharging
D Dedicated for One-Cell Applications
D Integrated Low-Impedance MOSFET Switch
and Sense Resistor
D Precision Trimmed Overcharge and
Overdischarge Voltage Limits
D Extremely Low Power Drain
D 3-A Current Capacity
D Overcurrent and Short-Circuit Protection
D Reverse Charger Protection
D Thermal Protection
TCLK
NC
BNEG
BNEG
BNEG
BNEG
BNEG
BNEG
SLUS400D – AUGUST 2000
PW PACKAGE
(TOP VIEW)
1
16
PACK+
2
15
CBPS
3
14
NC
4
13
PACK–
5
12
PACK–
6
11
PACK–
7
10
PACK–
8
9
PACK–
description
The UCC3952 monolithic BiCMOS lithium–ion
battery protection circuit increases the useful
operating life of a one-cell rechargeable battery
pack. Cell protection features include internally
trimmed charge and discharge voltage limits,
discharge current limit with a delayed shutdown,
and an ultra-low-current sleep mode state when
the cell is discharged. Additional features include
an on-chip MOSFET for reduced external compo-
nent count and a charge pump for reduced power
losses while charging or discharging a low-cell-
voltage battery pack. This protection circuit
requires one external capacitor and can operate
and safely shut down in a short circuit condition.
DP PACKAGE
(TOP VIEW)
TCLK 1
NC 2
NC 3
SUB 4
SUB 5
BNEG 6
BNEG 7
BNEG 8
16 PACK+
15 CBPS
14 NC
13 SUB
12 SUB
11 PACK–
10 PACK–
9 PACK–
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
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testing of all parameters.
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Copyright © 2000, Texas Instruments Incorporated
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