TDSEMIC

UC3843AN-TD

Switching Regulator IC Adjustable 1 Output DIP-8

DIP-8ROHS CompliantActive

Current-mode Pulse Width Modulator

Manufacturer: TDSEMIC
Manufacturer part #: UC3843AN-TD
Store part #: C42422131
Package / case: DIP-8
Category: Voltage Regulators - DC DC Switching Regulators
Packaging: Tube-packed

Datasheet (PDF)

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1,630 in stock

#C42422131

Stock & price checked 4 days ago

Quantity	Unit price	Pack price
5+	₹24.28	₹121.40
50+	₹19.14	₹957.00
150+	₹16.93	₹2,539.50
500+	₹14.20	₹7,100.00
2,500+	₹12.97	₹32,425.00
5,000+	₹12.24	₹61,200.00

Quantity (min 5, multiples of 5)

5 × ₹24.28

₹121.40

excl. GST

₹143.25 incl. 18% GST

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Standard pack: 50 per tube

UC3843AN-TD

₹121.40 for 5 + GST

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Specifications

Operating Temperature: 0℃~+70℃@(TA)
Function: Step-down type;Boost;Buck-Boost
Frequency - Switching: 500kHz
Number of Outputs: 1
Features: Cycle-by-cycle current limiting;Overcurrent Protection
Topology: Flyback
Output Type: Adjustable
Operating Voltage: 12V~25V
Switch tube (built-in/external): External
Output Current: 1A
Quiescent Current: 12mA

Packaging & compliance

RoHS: ROHS Compliant
Lifecycle: Active
Moisture sensitivity: MSL 2 (1 year)
Packaging: Tube-packed
Standard pack: 50 / Tube
Sold per: Piece
Minimum order: 5 (multiples of 5)
Unit weight: 0.914 g

Overview

UC3843 is a constant-frequency current-mode PWM controller designed for off-line and DC-DC switching power supply applications. It integrates a temperature-compensated precision reference, an adjustable oscillator for precise duty cycle control, a high-gain error amplifier, a current sensing comparator, a high-current totem-pole output stage suitable for driving power MOSFETs, along with protection circuits including single-cycle hysteretic current limiting, undervoltage lockout (UVLO), adjustable dead time, and single-pulse metering latch. The UC3843 is available in DIP8 or SOP8 packages.