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1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
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Description
Quad 2 channel multiplexer
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FEATURES
● Zero to 100% Duty Cycle Control
● Programmable Output Turn-on Delay
● compatible with Voltage or Current Mode Topologies
● Practical Operation at Switching Frequencies to 1MHz
● Four 2A Totem Pole Outputs
● 10MHz Error Amplifier
● Under voltage Lockout
● Low Startup Current -150μA
● Outputs Active Low During UVLO
● Soft-Start Control
● Latched Over-Current Comparator With Full Cycle Restart
● Trimmed Reference
DESCRIPTION
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 combi-nation 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 under voltage 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 bandwidth 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 0℃ to 70℃ and -25℃ to +85℃ temperature ranges; and in hermetically sealed cerdip, surface mount, and ceramic leadless chip carrier packages for -55℃ to +125℃ operation.
Preview of the first 3 pages of the data sheet
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204 buyer reviews from Australia
Paul
Length of registration:14 years
nicely packaged and on time
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10/12/2022
Prasad
Length of registration:3 years
Product as described great quality and fast delivery recommend!!
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09/28/2022
Harry Tan
Length of registration:1 years
As described, good service, A+++
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04/07/2017
Steve Alford
Length of registration:6 years
Very good service, fast delivery Thank you
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03/30/2017
thomas Nguyen
Length of registration:7 years
great service, thank you
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12/08/2016
Ray Lockhart
Length of registration:13 years
it arrived and is original
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12/01/2016
Garth James
Length of registration:7 years
Look good.
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11/22/2016
Osman Mehmed
Length of registration:12 years
Excellent
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11/05/2016
Lennod Greene
Length of registration:1 years
Thanks
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10/20/2016
John Sobon
Length of registration:10 years
Top and excellent service as always!
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Reply0
10/13/2016
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Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
UC3875N
UC3875N has several brands around the world that may have alternate names for UC3875N due to regional differences or acquisition. UC3875N may also be known as the following names:
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Stock Status: 5000
Minimum: 1
Total Price:
Unit Price:12.82968
UTSOURCE
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United States
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Stop production experts, we can provide a large number of electronic components that have been stopped production and are difficult to find, to facilitate the maintenance company
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