Datasheet > IW1678-01

IW1678-01

更新时间： 2022-02-26 11:44:06

品牌	Logo	应用领域
DIALOG		/
页数	文件大小	规格书
11页	951K
描述
Low-Power Off-line Digital Green-Mode PWM Controller

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IW1678-01 数据手册

iW1678

Low-Power Off-line Digital Green-Mode PWM Controller

4.0 Pinout Description

iW1678

OUTPUT

GND

SENSE

Figure 4.1: 5 Lead SOT-23 Package

Pin #

Name

V_CC

Type

Pin Description

Power Input Power supply for control logic.

Ground Ground.

GND

Analog Input Auxiliary voltage sense (used for primary regulation).

V_SENSE

I_SENSE

Analog Input Primary current sense. Used for cycle-by-cycle peak current control and limit.

OUTPUT

Output

Base drive for BJT.

5.0 Absolute Maximum Ratings

Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. For

maximum safe operating conditions, refer to Electrical Characteristics in Section 6.0.

Parameter

Symbol

V_CC

Value

-0.3 to 18

Units

DC supply voltage range (pin 1, I_CC= 20mA max)

Continuous DC supply current at V_CCpin (V_CC= 15 V)

Output (pin 5)

I_CC

-0.3 to 4.0

-0.7 to 4.0

-0.3 to 4.0

125

V_SENSEinput (pin 3, I_Vsense≤ 10 mA)

I_SENSEinput (pin 4)

Maximum junction temperature

Storage temperature

°C

T_{J MAX}

T_STG

T_LEAD

θ_JA

–65 to 150

260

°C

Lead temperature during IR reﬂow for ≤ 15 seconds

Thermal Resistance Junction-to-Ambient

ESD rating per JEDEC JESD22-A114

Latch-Up test per JEDEC 78

°C

190

°C/W

2,000

±100

Rev. 1.1

iW1678

3/12/12

Page 2

123 4 5 6 7...11

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