MP44019

– CRM/DCM MULTI-MODE PFC CONTROLLER WITH SECOND OVP

MP44019 Rev. 1.0

MonolithicPower.com

7

4/30/2021

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2021 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS (continued)

VCC = 20V, TA = TJ = -40°C to +125°C, min and max values are guaranteed by characterization,

typical values are tested under 25°C, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Current Sense (ZCD/CS)

Protection current for

ZCD/CS open fault

ICS_BIAS

60

nA

Over-current limit threshold

VOCL

460

500

530

mV

LEB time for OCL

tOCL_LEB

300

ns

Driver delay time

tCS_DELAY

100

ns

Over-current protection

threshold

VOCP

600

750

1000

mV

Voltage difference between

OCP and OCL

VOCP_OCL

100

200

500

mV

LEB time for OCP

tOCP_LEB

250

ns

OCP recovery time

tOCP_R

80

ms

Zero-Current Detection (ZCD/CS)

Upper clamp voltage

VZCD_CLAMP

IZCD = 3mA

7.2

7.8

V

Zero-current sensing

threshold

VZCD_H

VZCD rising

0.6

0.75

0.9

V

VZCD_L

VZCD falling

0.2

0.25

0.3

V

Turn-on delay after ZCD is

detected

tZCD_DELAY

150

ns

ZCD timeout

tZCD_TO

130

180

250

µs

ZCD leading-edge blanking

time (5)

tZCD_LEB

0.3

µs

Minimum off time

tOFF_MINI

1

1.4

1.9

µs

Error Amplifier Output (COMP)

Comp voltage at max on

time (5)

VCOMP_H

3.8

V

Comp voltage at zero on

time (5)

VCOMP_L

0.8

V

Internal COMP voltage

transient from CrM to DCM

(5)

VCOMPI_C2D

0.38

V

Internal COMP voltage to

enter burst-off mode (6)

VCOMPI_BOFF

30

60

90

mV

Internal COMP voltage to

enter burst-on mode

VCOMPI_BON

95

120

150

mV

Burst hysteresis

VBURST_HYS

30

60

95

mV

Soft-off burst pulse counter

(5)

NSOFTOFF

5

Soft-on burst pulse counter

(5)

NSOFTON

5

Maximum dead time

tDEAD_MAX

19

23.5

29

µs