SD5353A 集成电路IC MSO功率同步整流降压转换器
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2024-04-08
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SD5353A
SD5353A
SD5353A
SD 5353A
____________________________________________________________________________________________________________________________
- 1 -
REV0.3
One Cell Lithium-ion/Polymer Battery Protection IC
GENERAL DESCRIPTION
The product is a high
integration solution for lithium-
ion/polymer battery protection.
contains advanced power
MOSFET, high-accuracy voltage
detection circuits and delay circuits.
is put into an ultra-small
SOT23-5 package and only one
external component makes it an ideal
solution in limited space of battery pack.
has all the protection functions
required in the battery application including
overcharging, overdischarging, overcurrent
and load short circuiting protection etc. The
accurate overcharging detection voltage
ensures safe and full utilization charging.
The low standby current drains little current
from the cell while in storage.
The device is not only targeted for digital
cellular phones, but also for any other
Li-Ion and Li-Poly battery-powered
information appliances requiring long-
term battery life.
FEATURES
·
Protection of Charger Reverse
Connection
·
Protection of Battery Cell Reverse
Connection
·
Integrate Advanced Power MOSFET
with Equivalent of 54m
Ω
R
DS(ON)
·
Ultra-small SOT23-5 Package
·
Only One External Capacitor
Required
·
Over-temperature Protection
·
Overcharge Current Protection
·
Two-step Overcurrent Detection:
-Overdischarge Current
-Load Short Circuiting
·
Charger Detection Function
·
0V Battery Charging Function
- Delay Times are generated inside
·
High-accuracy Voltage Detection
·
Low Current Consumption
- Operation Mode: 2.8
μ
A typ.
- Power-down Mode: 1.5
μ
A typ.
·
RoHS Compliant and Lead (Pb) Free
APPLICATIONS
One-Cell Lithium-ion Battery Pack
Lithium-Polymer Battery Pack
Figure 1. Typical Application Circuit
Shouding
SD5353A
www.shouding.net
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