LD7523

6

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD7523-DS-00

June 2009

Electrical Characteristics (Continued)

(TA = +25

oC unless otherwise stated, VCC=12.0V)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Brownout Protection & Line Compensation (BNO Pin)

Brownout Turn-On Trip Level

1.20

1.25

1.30

V

Brownout Turn-Off Trip Level

1.05

1.10

1.15

V

Saturation Voltage on LINE Pin

IBNO<1.5uA

5.0

V

Line Compensation Ratio

0.04

V/V

Over Voltage Protection (OVP Pin)

OVP Trip Level

2.35

2.50

2.65

V

OVP de-bounce time

200

μS

Saturation Voltage on OVP Pin

IOVP<1.5uA

5.0

V

OLP (Over Load Protection)

OLP Trip Level

VCOMP(OLP)

4.5

5.0

5.5

V

OLP Delay Time

VCOMP>5.0V

60

mS

OLP De-Latch Counter

500

mS

Soft Start

Soft Start Duration

5

7.5

10

mS

Note 1: When OVP, OLP Protection is tripped.

Note 2: Guaranteed by design because Vcs(off) can’t be measured when VBNO=0V.