LD7832GS datasheet(5/16 Pages) LEADTREND

номер детали	LD7832GS

подробное описание детали	High Power Factor LED Controller with HV Start-up

PDF	16 Pages

Scroll/Zoom	100%

производитель	LEADTREND [Leadtrend Technology]

домашняя страница	https://www.leadtrend.com.tw/

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LD7832

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD7832-DS-00 April 2013

Electrical Characteristics

(VCC=14.0V, TA = 25

C unless otherwise specified.)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

High voltage Supply(HV Pin)

High-voltage Current Source

VCC<6V , HV=80V

0.8

1.2

6V<VCC<UVLO(ON)

2.5

3.5

Off-state Leakage Current

VCC>UVLO(ON), HV=600V

A

Supply Voltage (VCC Pin)

Startup Current

VCC<UVLO(ON) @VCC=14V

280

350

A

Operating Current

(with 1nF Load on OUT pin)

COMP pin open, ZCD=12V

1.2

1.6

VCC OVP tripped

0.4

0.6

UVLO(OFF)

7.5

8.5

UVLO(ON)

16.5

17.5

18.5

VCC OVP Level

HV Self Bias (Linear Regulator)

De-latch VCC Voltage

PDR

6.0

6.5

7.5

Compensation (COMP Pin)

Open Loop Voltage

COMP pin open

5.5

On Time

VCOMP=2V

s

Current Sensing (SOURCE Pin)

Reference Voltage(VREF)

0.194

0.2

0.206

OCP Threshold (cycle-by-cycle)

0.9

1.1

LEB Time

(1)

250

The trip level for Rs Short protection

0.05

0.08

0.1

Delay Counter for RsSP

Zero Current Detector (ZCD Pin)

IZCD_OVP Threshold

180

200

220

A

Upper Clamp Voltage

ZCDIN=12V

4.9

5.3

5.7

Lower Clamp Voltage

ZCDIN=0V

0.2

0.3

0.4

Input Voltage Threshold

(1)

Hysteresis

0.3

IZCD_OVP Threshold at ZCD pin

VZCD_OVP=IZCD*RZCD+5.3V

180

200

220

A

The trip level for ZCD UVP

(1)

4.2

Delay Counter of ZCD UVP

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