UC2876N

Mfr. #:: UC2876N
描述:: IC REG CTRLR PWM CM/VM 20DIP
生命週期:: 製造商新產品
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產品屬性
屬性值

Tags: UC287, UC28, UC2

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We provide 90-360 days warranty.

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Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes

UC2876N 描述

***ser: PWM Power Supply Controllers Phase Shift Resonant Controller

***ark: Pulse Width Modulation (PWM) Controller IC; Frequency:1000kHz; No. of Pins:20; Operating Temperature Range:-40°C to +85°C; Control Mode:Current, Voltage; Number of PWM Outputs:4; Output Current:500mA; Package/Case:20-PDIP ;RoHS Compliant: Yes

***as Instruments: The UC1875 family of integrated circuits implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance at high frequencies. This family of circuits may be configured to provide control in either voltage or current mode operation, with a separate over-current shutdown for fast fault protection. A programmable time delay is provided to insert a dead-time at the turn-on of each output stage. This delay, providing time to allow the resonant switching action, is independently controllable for each output pair (A-B, C-D). With the oscillator capable of operation at frequencies in excess of 2MHz, overall switching frequencies to 1MHz are practical. In addition to the standard free running mode, with the CLOCKSYNC pin, the user may configure these devices to accept an external clock synchronization signal, or may lock together up to 5 units with the operational frequency determined by the fastest device. Protective features include an undervoltage lockout which maintains all outputs in an active-low state until the supply reaches a 10.75V threshold. 1.5V hysteresis is built in for reliable, boot-strapped chip supply. Over-current protection is provided, and will latch the outputs in the OFF state within 70nsec of a fault. The current-fault circuitry implements full-cycle restart operation. Additional features include an error amplifier with band-width in excess of 7MHz, a 5V reference, provisions for soft-starting, and flexible ramp generation and slope compensation circuitry. These devices are available in 20-pin DIP, 28-pin "bat-wing" SOIC and 28 lead power PLCC plastic packages for operation over both 0C to 70C and 25C to +85C temperature ranges; and in hermetically sealed cerdip, and surface mount packages for 55C to +125C operation.

Market price

型號	描述	庫存	價格
UC2876N DISTI # UC2876N-ND	IC REG CTRLR PWM CM/VM 20DIP RoHS: Compliant Min Qty: 40 Container: Tube	Limited Supply - Call
UC2876NG4 DISTI # UC2876NG4-ND	IC REG CTRLR PWM CM/VM 20DIP RoHS: Compliant Min Qty: 40 Container: Tube	Limited Supply - Call
UC2876N DISTI # 595-UC2876N	Switching Controllers Phase Shift Resonant Controller RoHS: Compliant	0
UC2876NG4 DISTI # 595-UC2876NG4	Switching Controllers Phase Shift Resonant Controller RoHS: Compliant	0
UC2876N	Switching Controller, Voltage-mode, 3A, 1200kHz Switching Freq-Max, BIPolar, PDIP20 RoHS: Compliant	14307	1000:$11.9100 500:$12.5400 100:$13.0500 25:$13.6100 1:$14.6600

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