HANSCHIP semiconductor

UC2845DRG

1A 47kHz~57kHz 1W 7.6V~30V SOP-8 AC DC Converters, Offline Switchers RoHS

SOP-8ROHS CompliantActive

UC284x/UC384x series PWM controllers (suitable for offline power supplies and DC-DC converters)

Manufacturer: HANSCHIP semiconductor
Manufacturer part #: UC2845DRG
Store part #: C19723752
Package / case: SOP-8
Category: AC DC Converters, Offline Switchers
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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2,145 in stock

#C19723752

Stock & price checked 42 h ago

Quantity	Unit price	Pack price
5+	₹17.19	₹85.95
50+	₹15.00	₹750.00
150+	₹14.08	₹2,112.00
500+	₹12.91	₹6,455.00
2,500+	₹12.38	₹30,950.00
5,000+	₹12.08	₹60,400.00

Quantity (min 5, multiples of 5)

5 × ₹17.19

₹85.95

excl. GST

₹101.42 incl. 18% GST

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Standard pack: 2,500 per reel

UC2845DRG

₹85.95 for 5 + GST

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Specifications

Operating Temperature: -40℃~+85℃
Output Current: 1A
Frequency - Switching: 47kHz~57kHz
Pd - Power Dissipation: 1W
Voltage - Supply: 7.6V~30V
Topology: Boost;Flyback
Features: Under-voltage lockout;Slope compensation;Under Voltage Protection;Over Current 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: 0.248 g

Overview

The UC284x and UC384x are fixed frequency current mode PWM controller. They are specially designed for OFF Line and DC to DC converter applications with a minimal external components. Internally implemented circuits include a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Protection circuitry includes built under voltage lockout and current limiting. The UC2842/44, UC3842/44 have UVLO thresholds of 16V (on) and 10V (off). The corresponding thresholds for the UC2843/45, UC3843/45 are 8.4V (on) and 7.6V (off). The UC2842/43, UC3842/43 can operate within 100% duty cycle. The UC2844/45, UC3844/45 can operate within 50% duty cycle. The UC2842/44/44/45 is characterized for operation from TA = -40°C to 85°C. The UC3842/43/44/45 is characterized for operation from TA = 0°C to 70°C.