UC2844A

所属类别：ACDC-和-DCDC-电源
产品名称：电流模式 PWM 控制器
厂商：TI
生产批号：09+
封装：14SOIC, 8PDIP, 8SOIC
库存状态：有库存
库存量：2500
最低订购量：1
详细资料：

Product Introduction

The control IC UC1842A/3A/4A/5A family is a pin-compatible series of improved versions of the UC3842/3/4/5 pins. Providing the necessary functions to control the current mode switching power supply, this home has the following improved features. The starting current is guaranteed to be less than 0.5 mA. The oscillator discharge is trimmed to 8.3 milliamps. In undervoltage lockout, the output stage can absorb at least 10 milliamps less than the 1.2V 5V V CC.

characteristic

Optimize offline and DC-to-DC converters
低启动电流“（
Side vibration discharge current
Automatic feedforward compensation
The pulse is limited by the pulse current
Enhanced load response characteristics
Undervoltage locking hysteresis
Dual pulse suppression
The totem pole outputs a large current
Internal fine-tuning bandgap datum
500kHz operation
Low voltage reverse osmosis error amplifier

parameter

			UC2844A
topology			Boost, buck, reverse, forward
Control method			Current mode
Duty Cycle (Max) (%)			50
Frequency (max) (kHz)			450
On/off of undervoltage lockout threshold (5)			16/10
Pin/Pack			14SOIC，8PDIP，8SOIC
(#) Regulated output			One
Operating Temperature Range (°C)			-40 to 125, -40 to 85

UC2844A-related ICs include:

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UC2844AD	TI	15+	SOP-14P	New original stock in stock
UC2844AN	ST/UCC	03+	DIP-8	Brand new original
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