UCC2805

所属类别：ACDC-和-DCDC-电源
产品名称：汽车类低功率 BiCMOS 电流模式 PWM
厂商：TI
生产批号：10+
封装：8PDIP, 8SOIC, 8TSSOP
库存状态：有库存
库存量：22500
最低订购量：1
详细资料：

Product Introduction

The high-speed, low-power IC contains all the control and driver components required for UCC1800/1/2/3/4/5 home switching power supplies for offline and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts.

These devices feature the same pinout configuration as the UC1842/3/4/5 series, and also offer internal full-cycle soft-start and internally leading current-sense input blanking value-added capabilities.

The UCC1800/1/2/3/4/5 series offers a choice of packages, temperature ranges, maximum duty cycles, and a selection of key various voltage levels. For example UCC1803 it is best to mate with UCC1805 reference parts to a battery-powered system, while higher reference and UCC1802 with UCC1804 higher UVLO hysteresis are ideal for use in off-line power supplies.

characteristic

Typical starting power supply current of 100μA
Typical operating current is 500μA
to 1 MHz operation
Internal soft start
Internal soft start failure
Built-in current sense signal with cutting-edge blanking
1 amp totem pole output
The typical response of the 70NS ball valve ranges from current detection to gate drive output
1.5% tolerance voltage reference
The same pin is the sum UC3842A of UC3842

parameter

		UCC2805
topology		Boost, reverse, forward
Control method		Current mode
Duty Cycle (Max) (%)		50
Frequency (max) (kHz)		1000
On/off of undervoltage lockout threshold (5)		4.1/3.6
Pin/Pack		8PDIP，8SOIC，8TSSOP
(#) Regulated output		One
Operating Temperature Range (°C)		-40 to 85

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UCC2805

parameter

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