MP4033—PRIMARY-SIDE–CONTROL, OFFLINE LED CONTROLLER WITH PFC

MP4033 Rev. 1.0

www.MonolithicPower.com

7

10/22/2014

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© 2014 MPS. All Rights Reserved.

guaranteed by characterization.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Current Sense Comparator

Leading-Edge-Blanking Time

t

LEB

350

500

750

ns

Over-Current-Protection

Leading-Edge-Blanking Time

t

LEB_OCP

260

350

550

ns

Over-Current-Protection

Threshold

V

OCP

2.56

2. 70

2.86

V

Current Sense Upper Clamp

Voltage

V

S CLAMP H

1.97

2.07

2.17

V

Current Sense Lower Clamp

Voltage

V

S CLAMP L

0.01

0.035

0.09

V

Zero-Current Detector

Zero-Current–Detect Threshold

V

ZCD T

Falling Edge

0.27

0.30

0.33

V

Zero-Current–Detect Hysteresis

V

ZCD HYS

550

590

625

mV

ZCD Pin Short Circuit

Threshold

V

ZCD_SC

78

100

122

mV

ZCD Pin Short Circuit Blanking

time

t

ZCD_SC_LEB

33

ms

Zero-Current–Detect LEB

t

ZCD_LEB

Starts at Gate Turn Off

when V

1.90

2.30

3.36

µs

Starts at Gate Turn Off

when V

0.95

1.18

1.68

µs

Over-Voltage Threshold

V

ZCD OVP

4.90

5.30

5.70

V

OVP Detect LEB

t

OVP_LEB

Starts at Gate Turn Off

when V

1.90

2.30

3.36

µs

Starts at Gate Turn Off

when V

0.95

1.18

1.68

µs

Minimum Off Time

t

OFF_MIN

Normal

4

5.3

8

µs

NTC≤1.0V

10

µs

Weak/Strong DP Mode detector

current

(for

leading

edge

dimmer)

140

180

220

µA

Strong

DP

Mode

Enable

Threshold (for leading edge

dimmer)

1.13

1.18

1.23

V

Weak/Strong

DP

Mode

Detection Time (for leading

edge dimmer)

150

215

320

µs

Starter

Start Timer Period

t

START

100

130

165

µs