LD5523K datasheet(5/17 Pages) LEADTREND

номер детали	LD5523K

подробное описание детали	Multi-Mode PWM Controller of Flyback with Integrated BNI/BNO and Bulk cap. OVP

PDF	17 Pages

Scroll/Zoom	100%

производитель	LEADTREND [Leadtrend Technology]

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

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5 / 17 page

LD5523K

05/16/2018

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD5523K-DS-00 May 2018

Electrical Characteristics

(TA = +25

oC unless otherwise stated, VCC=15.0V)

PARAMETER

CONDITIONS

SYMBOL

MIN

TYP

MAX

UNITS

Supply Voltage (VCC Pin)

Startup Current

ICC_ST

A

Operating Current

(with 1nF load on OUT pin)

VCOMP=0V, OUT=1nF

ICC_OP1

0.285

VCOMP=1.7V, OUT=1nF

IFB=200A

ICC_OP2

2.4

Auto current protection

ICC_OPA1

0.6

Brown in (Before the first

pulse)/ Brown out

ICC_OPA3

0.7

1.1

1.5

UVLO(OFF)

VCC_OFF

UVLO(ON)

VCC_ON

15.5

16.5

17.5

VCC OVP Level

VCC_OVP

VCC OVP de-bounce time

TVCC_OVP

Cycle

Voltage Feedback (COMP Pin)

Short Circuit Current

VCOMP=0V

ICOMP

0.116

Open Loop Voltage

(1)

VCOMP_OPEN

3.15

Min. OCP Compensation

Current

IFB =100A

(1)

IOCP_MIN

A

Max. OCP Compensation

Current

IFB =300A

IOCP_MAX

200

225

250

A

Current Sensing (CS Pin)

Maximum Input Voltage

VCS_LIMIT

0.48

0.5

0.52

Leading Edge Blanking Time

TLEB

275

Internal Slope Compensation

*ton>3

s

DMAX.

(Linearly increase),

(1)

VSLP_L

165

Delay to Output

(1)

TPD

BNO Protection (FB Pin)

Brown In Trip Level

IBNI

100

A

BNO Hysteresis

IBNO_HYS

A

Brown Out De-bounce Time

VCOMP=1.7V

TDB_BNO

Bulk Cap OVP

IBULK_OVP

370

A

Bulk Cap OVP delay

TFB_BOVP

450

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