Varnitronics
NST03AA WXNSIC
WXNSIC

NST03AA

Battery Charging IC Battery Protection IC Lithium Battery SOP-8

SOP-8ROHS CompliantActive

0.3A charging, 0.7A discharging, automatic power on/off, Bluetooth charging dock, SOC

Manufacturer
WXNSIC
Manufacturer part #
NST03AA
Store part #
C49023239
Package / case
SOP-8
Packaging
Tape & Reel (TR)
Datasheet (PDF)

Every Order Guarantee

100% Authentic · 30-Day Return or Replacement · policy

1,095 in stock

#C49023239

Stock & price checked 26 h ago

QuantityUnit pricePack price
5+₹13.16₹65.80
50+₹10.41₹520.50
150+₹9.04₹1,356.00
500+₹8.00₹4,000.00
2,500+₹7.17₹17,925.00
4,000+₹6.76₹27,040.00

5 × ₹13.16

₹65.80

excl. GST

₹77.64 incl. 18% GST

Need volume or a scheduled delivery? Request a quote
  • Dispatch in 7–10 working days
  • GST invoice with every order
  • Standard pack: 4,000 per reel

NST03AA

₹65.80 for 5 + GST

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Specifications

Operating Temperature
-40℃~+150℃
Quiescent Current
5uA
Type of Battery
Lithium Battery
Operating Voltage
4.5V~5.5V
Features
Constant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Over-discharge protection;Overcurrent Protection;Short-Circuit Protection;Overvoltage protection
The Chip Type
Charging IC;Protection IC
Charge Current - Max
300mA

Packaging & compliance

RoHS
ROHS Compliant
Lifecycle
Active
Moisture sensitivity
MSL 3 (168 hours)
Packaging
Tape & Reel (TR)
Standard pack
4,000 / Reel
Sold per
Piece
Minimum order
5 (multiples of 5)
Unit weight
0.228 g

Overview

NST03AA is a Bluetooth charging dock SOC integrating lithium battery charge management, synchronous boost converter, battery fuel gauge, and protection functions. The chip's complete functional integration minimizes external application components, significantly reducing solution size and BOM cost, while the chip itself draws only 5uA standby current. The NST03AA features a 0.3A charging current, and the synchronous boost converter supports 0.7A output, with single-click power on/off button support and automatic shutdown under no-load conditions. The NST03AA incorporates built-in power path management, supporting pass-through charging (simultaneous charge and discharge), with heavy-load and short-circuit protection during pass-through operation — eliminating the need for an external diode while effectively preventing it from burning out under heavy load or short circuit conditions.

Applications

  • Bluetooth headset charging case
  • Flashlight
  • Battery-powered handheld portable devices

Key features

  • Built-in power path management with protection, supports simultaneous charging and discharging
  • Auto power-on + single key press power-on
  • Auto power-on + single key press power-off
  • Ultra-low standby current of only 5uA
  • Charging current 0.3A
  • Discharging current 0.7A
  • Preset charging voltage 4.2V/4.35V
  • Intelligent temperature regulation
  • Output short-circuit protection / overload protection / input overvoltage protection
  • SOP-8L package

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