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UC2847

Category:ACDC- and -DCDC-power supply
Product Name:Current mode PWM controller
Manufacturers:TI
Production Batch Number:10+
Encapsulation:16PDIP, 16SOIC
Stock Status:There is stock
Stock Quantity:4480
Minimum order quantity: 1
Details:

Product introduction

The UC1846/7 family of control ICs provides all the functions necessary to implement a fixed-frequency, current-mode control scheme while maintaining a minimum number of external components. The superior performance of this technology is improved line adjustment, enhanced load response characteristics, and simpler and easier control loop design. The inherent advantages of the topology include pulse-through pulse current limiting, automatic correction of symmetrical push-pull converters, and the ability to parallelize "power modules" while maintaining current equal sharing.

The protection circuitry includes programmable current limit with built-in undervoltage lockout and soft-start removal. A shutdown function is also available, can be started or has an automatic full power off reboot or latch shutdown.

characteristic

Automatic feed-forward compensation
Programmable pulse-by-pulse current limiting
Automatic correction of symmetrical push-pull configurations
Enhanced load response characteristics
Combat capability of modular power systems in parallel
Wide common-mode range of differential current-sense amplifiers
Double pulse suppression
500mA current (peak) totem pole output
± 1% bandgap reference
Undervoltage lockout
Soft-start capability
Close the terminal
500kHz operation

parameter

	UC2847
topology	Boost, flyback, forward, full bridge, half bridge, push and pull
Control method	Current mode
Duty cycle (max.) (%)	50
Frequency (max) (khertz)	450
On/Off of Undervoltage Lockout Threshold (5)	7.7/6.95
Pins/Packets	16PDIP，16SOIC
(#) Regulated output	2
Operating temperature range(°C)	-40 to 85

andUC2847Related ICs are:

Model	Manufacturers	lot number	encapsulation	illustrate
1728470000	Weidmüller Interface GmbH & Co. KG	218+	connector	1728470000 S2L 3.5/6/90F 3.5SN OR
LTC2847IUHF#PBF	Linear Technology	15+	SMD	LTC2847IUHF#PBF
LTC2847IUHF	Linear Technology	15+	SMD	LTC2847IUHF
LTC2847CUHF#PBF	Linear Technology	15+	SMD	LTC2847CUHF#PBF
LTC2847CUHF	Linear Technology	15+	SMD	LTC2847CUHF
V6D1D66B-00000-000/28471?	LITTELFUSE	11+	DIP	connector
UC2847DW	UNITRODE	00+	SOP-16P	Brand new original in stock
2SK2847	Toshiba	04+	TO-3P	900V,8A,85W
UC2847N	UNITRODE	00+	DIP-16P	Brand new original in stock
UC2847	TI	10+	16PDIP, 16SOIC	Current mode PWM controller
ISL28478	INTERISL	08+	SOP	ISL28478, Dual and Quad Micropower Single Rail-to-Rail Input and Output (RRIO) Op-Amp
ISL28476	INTERISL	09+	SOT	ISL28476, Dual and Quad Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Precision Op Amp
ISL28470	INTERISL	09+	QSOP28	ISL28470, quadruple instrumentation amplifier

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TI brand product recommendation

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UC2846	TI	08+	16PDIP, 16SOIC, 20PLCC	Current mode PWM controller
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UC2843A	TI	08+	14SOIC, 20PLCC, 8PDIP, 8SOIC	Current mode PWM controller
UC2843	TI	10+	14SOIC, 8SOIC	Automotive current mode PWM controller
UC2842AQ	TI	09+10+	14SOIC, 8SOIC	Automotive current mode PWM controller
UC2842	TI	09+10+	14SOIC, 8PDIP, 8SOIC	Current mode PWM controller
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UC2825B	TI	09+	16PDIP, 16SOIC	High-speed PWM controller
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