Integrated Circuits (ICs)

UC1843BHKU/EM

Unknown

RADIATION-HARDENED QMLV, 30-V INPUT, 1-A SINGLE-OUTPUT 500-KHZ PWM CONTROLLER, 100% DUTY CYCLE

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Search across all available documentation for this part.

DocumentsHeavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A)UC1843B-SP total ionizing dose (TID) radiation report +12

Integrated Circuits (ICs)

UC1843BHKU/EM

Unknown

Texas Instruments

RADIATION-HARDENED QMLV, 30-V INPUT, 1-A SINGLE-OUTPUT 500-KHZ PWM CONTROLLER, 100% DUTY CYCLE

Deep-Dive with AI

DocumentsHeavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A)UC1843B-SP total ionizing dose (TID) radiation report +12

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UC1843BHKU/EM

Applications	PWM Controller
Current - Supply	11 mA
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	10-CDFF
Supplier Device Package	10-CFP
Voltage - Input [Max]	6.3 V
Voltage - Input [Min]	-3 V
Voltage - Supply [Max]	25 V
Voltage - Supply [Min]	12 VDC

UC1843B-SP Series

Radiation-hardened QMLV, 30-V input, 1-A single-output 500-kHz PWM controller, 100% duty cycle

Part	Package / Case	Mounting Type	Current - Supply	Voltage - Input [Max]	Voltage - Input [Min]	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Applications	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments UC1843BHKU/EM	10-CDFF	Surface Mount	11 mA	6.3 V	-3 V	10-CFP	25 V	12 VDC	PWM Controller	125 °C	-55 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	0	$ 0.00
Texas Instruments	TUBE	1	$ 256.47
		10	$ 235.09
		100	$ 213.72

Description

General part information

UC1843B-SP Series

The UC1843B-SP control IC is a radiation hardened pin-for-pin compatible version of the UC1843A-SP. Providing the necessary characteristics to control current-mode switched-mode power supplies, this device has improved features. Start-up current is specified to be less than 0.5 mA and oscillator discharge is trimmed to 8.3 mA. During UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCCover 5 V.