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See Technical Specifications

UC3875N +BOM

Phase shift resonant controller UC3875N

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

UC3875N
Datasheet:

UC3875N Datasheet (PDF)
Output Isolation:

Non-Isolated
Topology:

Full-Bridge
Voltage - Start Up:

10.75 V
Voltage - Supply (Vcc/Vdd):

9.5V ~ 20V
EDA/CAD Models:

Request Free CAD Models for UC3875N

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UC3875N General Description

When it comes to power supply control, the UC3875N stands out as a top-notch pulse width modulation controller IC crafted by Texas Instruments. Its exceptional abilities include operating at a fixed frequency of 100kHz and providing adjustable overcurrent, overvoltage, and overtemperature protection for an extra layer of security. The UC3875N also boasts a voltage feedforward circuit that enhances line regulation, a soft-start feature that reduces in-rush current, and a programmable dead-time for improved power efficiency

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)AC DC Converters, Offline Switches	Series	-
Output Isolation	Non-Isolated	Internal Switch(s)	-
Voltage - Breakdown	-	Topology	Full-Bridge
Voltage - Start Up	10.75 V	Voltage - Supply (Vcc/Vdd)	9.5V ~ 20V
Duty Cycle	100%	Frequency - Switching	1MHz
Fault Protection	Current Limiting	Control Features	Frequency Control, Soft Start, Sync
Operating Temperature	0°C ~ 70°C (TA)	Mounting Type	Through Hole
Base Product Number	UC3875	feature-type	Resonant Controllers
feature-control-method		feature-topology	Full-Bridge
feature-number-of-pwm-outputs	4	feature-switching-frequency-khz	1000
feature-maximum-duty-cycle-	100	feature-process-technology
feature-output-voltage-v		feature-minimum-operating-supply-voltage-v	10.75
feature-maximum-operating-supply-voltage-v	20	feature-maximum-supply-current-ma	44
feature-maximum-power-dissipation-mw		feature-synchronous-pin	Yes
feature-packaging	Tube	feature-rad-hard
feature-pin-count	20	feature-cecc-qualified	No
feature-esd-protection		feature-escc-qualified
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No