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UC2823B

Category:ACDC- and -DCDC-power supply
Product Name:High-speed 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 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

	UC2823B
topology	Boost, buck, reverse, forward
Control method	Current mode
Duty cycle (max.) (%)	100
Frequency (max) (khertz)	1000
On/Off of Undervoltage Lockout Threshold (5)	9.2/8.4
Pins/Packets	16PDIP，16SOIC
(#) Regulated output	One
Operating temperature range(°C)	-40 to 85

andUC2823BRelated ICs are:

Model	Manufacturers	lot number	encapsulation	illustrate
UC2823BN	TI	00+	N／A	Brand new inventory
UC2823B	TI	10+	16PDIP, 16SOIC	High-speed PWM controller

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TI brand product recommendation

Model	Manufacturers	lot number	encapsulation	illustrate
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UC2525B	TI	07+	16SOIC	Regulated pulse width modulator
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UC2524	TI	08+	16PDIP, 16SOIC	Advanced regulated pulse width modulator
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