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MC33349 데이터시트 PDF




ON Semiconductor에서 제조한 전자 부품 MC33349은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 MC33349 기능
기능 Lithium Battery Protection Circuit for One Cell Battery Packs
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MC33349 데이터시트, 핀배열, 회로
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




MC33349 pdf, 반도체, 판매, 대치품
Vcell
5
Ct
4
MC33349
VD1
VD2
VD3
Level
Shift
Delay
10 kOhm
Short Circuit
Detector
6
Gnd
Rshort
1
Do
Figure 2. Detailed Block Diagram
3
Co
2
P–
PIN FUNCTION DESCRIPTION
Pin Symbol
1 DO
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ2 P–
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ3 CO
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ4 Ct
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ5 Vcell
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ6 Gnd
Description
This output connects to the gate of the discharge MOSFET allowing it to enable or disable battery pack
discharging.
This pin monitors cell discharge current.
The excess current detector sets when the combined voltage drop of the charge MOSFET and the discharge
MOSFET exceeds the discharge current limit threshold voltage, V(DET3). The short circuit detector activates when
V(P–) is pulled within 0.8V of the cell voltage by a short circuit.
This output connects to the gate of the charge MOSFET allowing it to enable or disable battery pack charging.
This pin connects to the external capacitor for setting the output delay of the overvoltage detector (VD1).
This input connects to the positive terminal of the cell for voltage monitoring and provides operating bias for the
integrated circuit.
This is the ground pin of the IC.
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MC33349 전자부품, 판매, 대치품
MC33349
3.90
3.85
3.80
3.75
3.70
3.65 IOH = –50µA
VDD = 3.9V
3.60
–60 – 40 – 20
0
20 40
60 80 100
TA, AMBIENT TEMPERATURE (°C)
Figure 15. Cout Pch Driver On Voltage (Voh1)
vs Temperature
MC33349N–3X
0.30
0.25
0.20
0.15
0.10
0.05
0.00
–60 – 40 – 20
0
20 40
IOL = 50µA
VDD = 2.4V
60 80 100
TA, AMBIENT TEMPERATURE (°C)
Figure 16. Dout Nch Driver On Voltage (Vol2)
vs Temperature
MC33349N–3X
3.90
IOH = –50µA
3.85 VDD = 3.9V
3.80
3.75
3.70
3.65
3.60
–60 – 40 – 20
0
20 40
60
TA, AMBIENT TEMPERATURE (°C)
80 100
Figure 17. Dout Pch Driver On Voltage (Voh2)
vs Temperature
MC33349N–3X
10000
1000
100
10
0
0.001
R2 = 1kW
VDD = 3.0V
0.01 0.1
EXTERNAL CAPACITANCE C2 (µF)
1
Figure 18. Short Protection Delay Time
vs Capacitance C2
MC33349N–3X
25.00
20.00
15.00
10.00
5.00
0.00
2.5
3.0 3.5 4.0
SUPPLY VOLTAGE VDD (V)
4.5
Figure 19. Excess Current Delay Time vs VDD
MC33349N–3X
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