Datasheet > IW1810

IW1810

更新时间： 2022-02-26 13:57:43

品牌	Logo	应用领域
DIALOG		/
页数	文件大小	规格书
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Off-Line Digital Green-Mode PWM Controller Integrated

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IW1810 数据手册

iW1810

Off-Line Digital Green-Mode PWM Controller

Integrated with Power BJT

1.0 Features

2.0 Description

● Primary-side feedback eliminates opto-isolators and The iW1810 is a high performance AC/DC power supply

simpliﬁes design

control device which uses digital control technology to

build peak current mode PWM ﬂyback power supplies.

This device includes an internal power BJT and operates in

quasi-resonant mode to provide high efﬁciency along with a

number of key built-in protection features while minimizing

the external component count, simplifying EMI design and

lowering the total bill of material cost. The iW1810 removes

● Internal 800-V bipolar junction transistor (BJT)

● 64kHz PWM switching frequency

● No-load power consumption < 100mW at 230V_acwith

typical application circuit

● Adaptive multi-mode PWM/PFM control improves the need for secondary feedback circuitry while achieving

efﬁciency

excellent line and load regulation. It also eliminates the

need for loop compensation components while maintaining

stability over all operating conditions. Pulse-by-pulse

waveform analysis allows for a loop response that is much

faster than traditional solutions, resulting in improved

dynamic load response. The built-in power limit function

● Quasi-resonant operation for highest overall efﬁciency

●

EZ-EMI^®design to easily meet global EMI standards

● Dynamic BJT base drive current control

● Very tight constant voltage and constant current enables optimized transformer design in universal off-line

regulation with primary-side-only feedback

applications and allows for a wide input voltage range.

● No external compensation components required

iWatt’s innovative proprietary technology ensures that

power supplies built with iW1810 can achieve both highest

average efﬁciency and less than 100 mW no-load power

consumption in a compact form factor.

● Complies with EPA 2.0 energy-efﬁciency speciﬁcations

with ample margin

● Low start-up current (8μA typical)

● Built-in soft start

3.0 Applications

● Low-powerAC/DC power supply for smart meters, motor

● Built-in short circuit protection and output overvoltage

protection

control and industrial applications

● Built-in current sense resistor short circuit protection

● Linear AC/DC replacement

● Low-power AC/DC LED driver

● No audible noise over entire operating range

OUT

GND

iW1810

SENSE

GND

Figure 3.1: iW1810 Typical Application Circuit

WARNING:

The iW1810 is intended for high voltage AC/DC ofﬂine applications. Contact with live high voltage ofﬂine circuits

or improper use of components may cause lethal or life threatening injuries or property damage. Only qualiﬁed

professionals with safety training and proper precaution should operate with high voltage ofﬂine circuits.

Rev. 1.2

iW1810

aPRil 6, 2012

Page 1

12 3 4 5 6 7...13

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与IW1810相关器件

型号	品牌	描述	获取价格	数据表
IW1810-00	DIALOG	Off-Line Digital Green-Mode PWM Controller Integrated	获取价格
IW1812	DIALOG	Off-Line Digital Green-Mode PWM Controller Integrated with Power BJT and OTP	获取价格
iW1812	RENESAS	AccuSwitch? Off-Line Digital PWM Converter with 800V Bipolar Power Transistor	获取价格
IW1812-20	DIALOG	Off-Line Digital Green-Mode PWM Controller Integrated with Power BJT and OTP	获取价格
IW1816	DIALOG	Off-Line Digital Green-Mode PWM Controller Integrated	获取价格
iW1816	RENESAS	AccuSwitch? Off-Line Digital PWM Converter with 800V Bipolar Power Transistor	获取价格

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