MPX2003

– UP TO 140kHz ALL-IN-ONE FLYBACK CONTROLLER

MPX2003 Rev. 1.0

MonolithicPower.com

9

8/5/2022

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© 2022 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS (continued)

Typical values tested at TJ = -40°C to +125°C, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Turn-off delay

tSR-OFFD

CL = 4.7nF

35

62

ns

Minimal on time

tON-MIN

0.4

0.7

1

µs

Driver voltage low level

VDRV-L

VDD = VDD-OFF + 0.1V

0.1

V

VDD = 5V

0.1

Driver voltage high level

VDRV-H

VDD = VDD-OFF + 0.1V

4.1

4.3

4.6

V

VDD = 5V

5

VDD = 12V

9

10

VDD = 24V

9

10

Max sourcing current (5)

ISON

VDD = 12V

0.5

A

Max sinking current (5)

ISOFF

VDD = 12V

3

A

Driver pull-down resistance

RPULL-DOWN

CL = 4.7nF, VDD = 12V

0.65

1.05

Ω

Dead time under CCM

conditions

tDT

15

ns

Secondary Side (IS)

Overload protection

threshold

VOLP

37

42

47

mV

Overload protection delay

tOLP

55

66

77

ms

Maximum CDC voltage on

FB

VCDC_MAX

VIS = 40mV

50

mV

Secondary Side (COMP)

Transconductance

GM

430

µA/V

Maximum sink current

ISINK

56

86

120

µA

Maximum source current

ISOURCE

-125

-88

-60

µA

Maximum COMP voltage

VCOMP-S

VDD = 5V

2.5

2.6

2.7

V

Threshold for the max

frequency limitation

VFS-MAX

2.12

2.24

2.36

V

Threshold for burst entry

VBURST

0.3

0.33

0.36

V

Burst exit hysteresis

VBURST-HYS

0.018

V

Maximum PFM frequency

fPFM-MAX

TJ = 25°C

135

140

145

kHz

Minimal PFM (burst entry)

frequency

fPFM-MIN

TJ = 25°C

18

20

kHz

Burst exit frequency

fPFM-MIN

TJ = 25°C

18

20

kHz

Secondary Side

– Internal Thermal Protection

OTP threshold (5)

TOTP-S

150

°C

Hysteresis to recover from

OTP (5)

TΔ-S

40

°C

Note:

5)

These parameters are guaranteed by design.