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PDF MC33349 Data sheet ( Hoja de datos )

Número de pieza MC33349
Descripción Lithium Battery Protection Circuit for One Cell Battery Packs
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MC33349
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, discharge
current limit detection, and a low current standby mode when the cell
is discharged. This protection circuit requires a minimum number of
external components and is targeted for inclusion within the battery
pack.
• Internally Trimmed Charge and Discharge Voltage Limits
• Discharge Current Limit Detection
• Low Current Standby Mode 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
Typical One Cell Smart Battery Pack
5
MC33349
6
4
1 32
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6
1
PLASTIC PACKAGE
N SUFFIX
CASE 1262
(SOT–23)
MARKING DIAGRAMS
1
v = Version code number
xx = Date code
PIN CONNECTIONS
DO 1
6 Gnd
P– 2
CO 3
5 Vcell
4 Ct
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2000
May, 2000 – Rev. 1
1
Publication Order Number:
MC33349/D

1 page




MC33349 pdf
MC33349
TYPICAL CHARACTERISTICS
4.27
4.26
4.25
4.24
4.23
4.22
4.21
4.20
–60
– 40 – 20 0
20 40 60 80
TA, AMBIENT TEMPERATURE (°C)
Figure 3. Overvoltage Threshold
vs Temperature
MC33349N–3X
100
0.210
0.205
0.200
0.195
0.190
–60
– 40 – 20 0 20 40 60
TA, AMBIENT TEMPERATURE (°C)
80
Figure 5. Excess Current Threshold
vs Temperature
MC33349N–3X / MC33349N–7X
100
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
–60
– 40 – 20 0 20 40 60 80
TA, AMBIENT TEMPERATURE (°C)
Figure 4. Undervoltage Threshold
vs Temperature
MC33349N–3X / MC33349N–7X
100
2.40
VDD = 3.0 V
2.35
2.30
2.25
2.20
2.15
2.10
–60
– 40 – 20 0
20 40 60
TA, AMBIENT TEMPERATURE (°C)
80
Figure 6. Short Protection Voltage
vs Temperature
MC33349N–3X
100
100
90
80
70
60
50
40
30
20
–60
C3 = 0.01µF
VDD = 3.6V to 4.3V
– 40 – 20 0
20 40 60 80
TA, AMBIENT TEMPERATURE (°C)
Figure 7. Output Delay of Overvoltage
vs Temperature
MC33349N–3X
100
18
16
14
12
10
8
6 VDD = 3.6V to 2.4V
4
2
–60 – 40 – 20
0
20 40
60 80 100
TA, AMBIENT TEMPERATURE (°C)
Figure 8. Output Delay of Undervoltage
vs Temperature
MC33349N–3X / MC33349N–7X
http://onsemi.com
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MC33349 arduino
MC33349
OUTLINE DIMENSIONS
N SUFFIX
PLASTIC PACKAGE
CASE 1262–01
(SOT–23)
ISSUE O
PIN 1 INK MARK
IDENTIFIER
E
0.20 M C B M
1 A6
25
A
34
A E1 B
A1
A
0.05
C
q ÉÉÇÇÉÉÇÇÉÉÇÇb ÉÉÇÇÉÉÇÇ
HL
b1
SECTION A–A
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSION D DOES NOT INCLUDE FLASH OR
PROTRUSIONS. FLASH OR PROTRUSIONS
SHALL NOT EXCEED 0.23 PER SIDE.
4. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
5. DIMENSIONS D AND E1 ARE TO BE DETERMINED
AT DATUM PLANE H.
MILLIMETERS
DIM MIN MAX
A 0.90 1.45
A1 0.00 0.15
b 0.35 0.50
b1 0.35 0.45
c 0.09 0.20
c1 0.09 0.15
D 2.80 3.00
E 2.60 3.00
E1 1.50 1.75
e 0.95
e1 1.90
L 0.25 0.55
q 0 _ 10_
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