MP4031—PRIMARY-SIDE–CONTROLLED, OFFLINE LED CONTROLLER WITH PFC

MP4031 Rev.1.03

www.MonolithicPower.com

5

5/8/2013

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Parameter

Symbol

Condition

Min

Typ

Max

Units

Current Sense Comparator

Leading-Edge Blanking Time

τ

LEB

360

450

540

ns

Current Sense Upper Clamp

Voltage

V

S clamp H

2.2

2.3

2.4

V

Current Sense Lower Clamp

Voltage

V

S clamp L

0.12

0.15

0.18

V

Zero-Current Detector

Zero-Current–Detect Threshold

V

ZCD_T

Falling Edge

0.32

0.35

0.37

V

Zero-Current–Detect Hysteresis

V

ZCD_Hy

520

550

580

mV

Zero-Current–Detect LEB

V

ZCD_LEB

Starts at Gate Turn Off

1.8

2.5

3.1

µs

Over-Voltage Threshold

V

ZCD_OVP

5.2

5.5

5.8

V

OVP Detect LEB

τ

OVP_LEB

Starts at Gate Turn Off

1.5

2

2.5

µs

Minimum Off Time

τ

off_min

4.2

5.6

7

µs

Starter

Start-Timer Period

τ

start

90

115

140

µs

Internal Main MOSFET

Breakdown Voltage

BV

DSS_main

V

GS=0

30

V

Drain-Source On-Resistor

R

DS(on)_main

I

200

250

300

mΩ

Notes:

5) The multiplier output is given by: Vs=K•V