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UC2823A

Category:ACDC- and -DCDC-power supply
Product Name:High-speed PWM controller
Manufacturers:TI
Production Batch Number:09+
Encapsulation:16PDIP, 16SOIC, 20PLCC
Stock Status:There is stock
Stock Quantity:3500
Minimum order quantity: 1
Details:

Product introduction

The UC3823A with UC3823B and UC3825A with UC3825B PWM controller series are improved standard UC3823 with UC3825 family versions. The number of circuit blocks that have been made with the performance enhancement. The error amplifier has a gain-bandwidth product of 12 MHz and an input offset voltage of 2 millivolts. The current limit threshold is guaranteed to a tolerance of 5%. The discharge current of the oscillator is specified as 10 mA for accurate dead time control. Frequency accuracy increased to 6%. The start-up supply current, typically 100μA, is ideal for off-line applications. Output drivers are redesigned to actively sink during UVLO without current starting current specification charges. In addition, the peak current capability of 2 per output is in transition.

characteristic

Improved PWM for UC3823/UC3825 versions
Suitable for voltage-mode or current-mode control methods
In practice, the switching frequency is 1 MHz
50 - ns propagation delay to output
High-current dual totem (peak of 2) pole output
Side vibration discharge current
Low 100μA start-up current
The pulse passes through a pulsed current limiting comparator
The latch is restarted with a full-cycle overcurrent comparator

parameter

		UC2823A
topology		Boost, buck, reverse, forward
Control method		Current mode
Duty cycle (max.) (%)		100
Frequency (max) (khertz)		1000
On/Off of Undervoltage Lockout Threshold (5)		16/10
Pins/Packets		16PDIP，16SOIC，20PLCC
(#) Regulated output		One
Operating temperature range(°C)		-40 to 85

andUC2823ARelated ICs are:

Model	Manufacturers	lot number	encapsulation	illustrate
ULQ2823A	ALLEGRO	00+	DIP-18	Brand new inventory
UC2823ADWTR	TI	08+	SOP-16	Original
CY74FCT162823ATPAC	CY	00+	TSSOP-56 (Ultra-thin foot)	Brand new original
UC2823A	TI	09+	16PDIP, 16SOIC, 20PLCC	High-speed PWM controller
SN74ABT162823A	TI	10+	SOP	18-bit bus interface trigger with three-state output

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