MPX2003

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

MPX2003 Rev. 1.0

MonolithicPower.com

8

8/5/2022

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

© 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

Primary Side

– Internal Thermal Protection

OTP threshold (5)

TOTP-P

150

°C

Hysteresis to recover from

OTP (5)

TΔ-P

40

°C

Secondary Side (VDD)

Operating current

IOPS

VDD = 5V, fSW = 140kHz,

CL = 4.7nF

7.5

mA

VDD = 12V, fSW = 140kHz,

CL = 4.7nF

10

Quiescent current

IQS

VDD = 5V

370

µA

UVLO falling threshold

VDD-OFF

4.0

4.25

4.5

V

UVLO rising threshold

VDD-ON

4.3

4.5

4.7

V

UVLO hysteresis

VDD-∆

0.3

V

Bleeding current during

protection

IBLD

10

mA

VDD ready threshold

VDD-RDY

4.72

4.92

5.12

V

VDD clamp level when

charged by SRD

VDD-C

4.3

4.5

4.7

V

Secondary Side (FB)

Feedback reference voltage

VREF

TJ = 25°C

1.21

1.22

1.23

V

Feedback current

IFB

VFB = 1.22V, TJ = 25°C

50

nA

FBOLP threshold

VFBO

VDD > VDD-RDY

0.075

0.095

0.115

V

FBOLP delay time

tFBO

200

µs

OVP threshold

VOVP

113%

118%

123%

VREF

OVP delay time

tOVP-D

115

µs

Secondary Side (SRD)

Turn-on threshold

VSR-ON

-105

-90

-75

mV

Regulated forward voltage

VFWD

8

20

32

mV

Turn-off threshold

VSR-OFF

-9

0

9

mV

Turn-off threshold in tON-MIN

VSR-OFFM

1.6

V

Input current at SRD pin

ISRD-L

VSRD = 30V

15

µA

Maximum charging current

to VDD

ISRD-C

VSRD=30V, VDD = 0V

50

mA

VSRD = 30V, VDD = VDD-ON - 0.5V

75

Threshold for driver open

detection

VSGO

TJ = 25°C

-0.52

-0.47

-0.42

V

Minimal time for driver open

detection

tSGO

DCM

0.5

µs

Secondary Side (SDRV)

Blanking for turn-on

detection

tSR-ONB

270

400

570

ns

Turn-on delay

tSR-OND

CL = 4.7nF

150

ns