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UC2843AQ

Category:ACDC- and -DCDC-power supply
Product Name:Automotive current mode PWM controller
Manufacturers:TI
Production Batch Number:08+
Encapsulation:14SOIC, 8SOIC
Stock Status:There is stock
Stock Quantity:5000
Minimum order quantity: 1
Details:

Product introduction

The control IC UC2842A/3A/4A/5A family is a pin-compatible family of improved versions of the UC2842/3/4/5-pin. Providing the necessary functions to control current mode switching power supplies, this family has the following improved features. The start-up current is guaranteed to be less than 0.5 mA. The oscillator discharge is trimmed to 8.3 mA. In undervoltage lockout, the output stage can absorb less than 10mA to 1.2 volts_targetV CC at least five

The differences between the members of this family are listed in the table below.

characteristic

Performance with extended temperature from -40°C to 125°C
Optimize offline and DC-DC converters
Low start-up current ("0.5 mA")
Side vibration discharge current
Automatic feed-forward compensation
The pulse is limited by the pulse current
Enhanced load response characteristics
Undervoltage lockout
Double pulse suppression
The totem pole outputs a large current
Internal fine-tuning bandgap reference
500 kHz operation
Low R_OError amplifier

parameter

	UC2843AQ
topology	improve
Control method	Current mode
Duty cycle (max.) (%)	100
Frequency (max) (khertz)	500
On/Off of Undervoltage Lockout Threshold (5)	8.5/7.9
Pins/Packets	14SOIC，8SOIC
(#) Regulated output	One
Operating temperature range(°C)	-40 to 125

andUC2843AQRelated ICs are:

Model	Manufacturers	lot number	encapsulation	illustrate
UC2843AQ	TI	08+	14SOIC, 8SOIC	Automotive current mode PWM controller

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TI brand product recommendation

Model	Manufacturers	lot number	encapsulation	illustrate
UC2843A-Q1	TI	10+	8SOIC	Automotive current mode PWM controller
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
UC2841	TI	09+	18PDIP, 18SOIC	Programmable offline PWM controller
UC2827-2	TI	10+	24SOIC	Current-down/voltage-feed push-pull PWM controller
UC2827-1	TI	10+	24PDIP, 24SOIC	Current-down/voltage-feed push-pull PWM controller
UC2825B	TI	09+	16PDIP, 16SOIC	High-speed PWM controller
UC2825A-Q1	TI	10+	16SOIC	Automotive high-speed PWM controller
UC2825A	TI	09+	16PDIP, 16SOIC, 20PLCC	High-speed PWM controller
UC2825	TI	09+	16PDIP, 16SOIC, 20PLCC	High-speed PWM controller
UC2824	TI	09+10+	16PDIP, 16SOIC	High-speed PWM controller
UC2823B	TI	10+	16PDIP, 16SOIC	High-speed PWM controller
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UC28025	TI	13+	16PDIP, 16SOIC	Economical high-speed PWM controller
UC28023	TI	09+08+	16PDIP, 16SOIC	Economical high-speed PWM controller
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