UCC3818A

所属类别：ACDC-和-DCDC-电源
产品名称：BiCMOS 功率因子前置稳压器
厂商：TI
生产批号：10+
封装：16PDIP, 16SOIC, 16TSSOP
库存状态：有库存
库存量：18000
最低订购量：1
详细资料：

Product Introduction

The UCC3817A and UCC3818A home provide all the features necessary, including an active power factor correction preconditioner. The controller realizes that by shaping the AC input current waveform, the corresponding AC input line voltage and power factor are close. The average current mode control maintains a stable, low-distortion sinusoidal current.

Designed in Texas Instruments' BiCMOS process, UCC3817A/UCC3818A offers features such as low start-up current, reduced power consumption, overvoltage protection, undervoltage lock-out detection shunt circuitry, leading modulation technology to reduce high-capacity capacitance with new features of ripple current through an improved, low-offset (± 2 mV) current amplifier to reduce distortion under light load conditions.

characteristic

Controls the boost pre-regulator to the near power factor
Distortion of boundaries
World Wide Network cable operation
Overvoltage protection
Precise power limits
Average current mode control
Improve anti-interference
Improved feedforward line adjustment
Frontier modulation
Typical start-up current of 150μA
Low-power BiCMOS operation
12 V to 17 V operation
The frequency range of 6 kHz is 220 kHz

parameter

	UCC3818A
On/off of undervoltage lockout threshold (5)	10.5/10
Working power supply (max) (five)	18
Starting Current (mA)	0.15
Operating Supply Current (mA)	4
Vref (V)	7.5
Vref's Thor (%)	1.5
Duty Cycle (Max) (%)	100
Actual operating frequency (max) (MHz)	0.25
Pin/Pack	16PDIP，16TSSOP，16SO

ICs related to UCC3818A include:

Model	Manufacturers	lot number	encapsulation	illustrate
UCC3818AD	TI	10+	SOP-16	Brand new original
UCC3818A	TI	10+	16PDIP, 16SOIC, 16TSSOP	BiCMOS power factor pre-regulator

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UCC3818A

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