Varnitronics
UC3845B-JSM JSMSEMI
JSMSEMI

UC3845B-JSM

Converter Offline 500kHz SOP-8

SOP-8ROHS CompliantActive

Pulse Width Modulation (PWM) circuit

Manufacturer
JSMSEMI
Manufacturer part #
UC3845B-JSM
Store part #
C41421787
Package / case
SOP-8
Packaging
Tape & Reel (TR)
Datasheet (PDF)

Every Order Guarantee

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

2,160 in stock

#C41421787

Stock & price checked 3 days ago

QuantityUnit pricePack price
5+₹30.36₹151.80
50+₹26.51₹1,325.50
150+₹24.86₹3,729.00
500+₹22.81₹11,405.00
2,500+₹21.90₹54,750.00
5,000+₹21.34₹1,06,700.00

5 × ₹30.36

₹151.80

excl. GST

₹179.12 incl. 18% GST

Need volume or a scheduled delivery? Request a quote
  • Dispatch in 15-18 working days
  • GST invoice with every order
  • Standard pack: 2,500 per reel

UC3845B-JSM

₹151.80 for 5 + GST

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Specifications

Operating Temperature
0℃~+70℃
Output Current
1A
Frequency - Switching
500kHz
Pd - Power Dissipation
1W
Voltage - Supply
30V
Features
Under-voltage lockout;Under Voltage Protection
Duty Cycle(Max)
50%
Working Mode
PWM Modulation

Packaging & compliance

RoHS
ROHS Compliant
Lifecycle
Active
Moisture sensitivity
MSL 3 (168 hours)
Packaging
Tape & Reel (TR)
Standard pack
2,500 / Reel
Sold per
Piece
Minimum order
5 (multiples of 5)
Unit weight
0.519 g

Overview

UC3845 is a current-mode PWM IC designed for switching power supplies. Compared to voltage-mode control, it offers significant advantages in load transient response and line regulation. Available in SOP8 and DIP8 packages.

Key features

  • Built-in undervoltage lockout circuit
  • Low startup current (typical 60uA)
  • Stable internal voltage reference
  • High-current push-pull output (drive current up to 1A)
  • Operating frequency up to 500kHz
  • Automatic negative feedback compensation circuit
  • Double pulse suppression
  • Superior load transient response

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