MP174A – NON-ISOLATED OFF-LINE REGULATOR

MP174A Rev. 1.0

www.MonolithicPower.com

5

2/27/2019

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

© 2019 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VCC = 5.5V, TJ=-40°C~125°C, Min & Max are guaranteed by characterization, typical is tested

under 25°C, unless otherwise specified.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Start-Up Current Source and Internal MOSFET (Drain Pin)

Internal regulator supply current

IRegulator

VCC=4V;VDrain=100V

2.2

4.1

6

mA

Drain pin leakage current

ILeak

VCC=5.8V;VDrain=500V

10

17

μA

Breakdown voltage

V(BR)DSS

TJ=25

°C

700

V

ON resistance

RON

TJ=25°C

13.5

17

Ω

TJ=125°C

21

25

Ω

Supply Voltage Management (VCC Pin)

VCC level (increasing) where the internal

regulator stops

VCCOFF

5.4

5.6

6

V

VCC level (decreasing) where the

internal regulator turns on

VCCON

5.1

5.3

5.7

V

VCC regulator on and off hysteresis

130

250

mV

VCC level (decreasing) where the IC

stops

VCCStop

3

3.4

3.6

V

VCC level (decreasing) where the

protection phase ends

VCCPro

2.4

2.8

V

Internal IC consumption

ICC

fs=28kHz, D=66.7%

720

μA

No switching

200

μA

VCC=5.3V,

latch-off phase

16

24

μA

Internal Current Sense

Peak current limit

ILimit

TJ=25°C

600

660

720

mA

Leading-edge blanking

τLEB1

350

ns

SCP threshold

ISCP

TJ=25°C

750

900

mA

Leading-edge blanking for SCP (1)

τLEB2

180

ns

Feedback Input (FB Pin)

Minimum off time

τMin_off

9.5

12

15

μs

Maximum on time

τMax_on

19

24

31

μs

Primary MOSFET feedback turn-on

threshold

VFB

2.45

2.55

2.65

V

OLP feedback trigger threshold

VFB_OLP

1.6

1.7

1.8

V

OLP delay time

τOLP

fs=28kHz

220

ms

Open-loop detection

VOLD

0.4

0.5

0.6

V

Thermal Shutdown

Thermal shutdown threshold (1)

150

°C

Thermal shutdown recovery hysteresis (1)

30

°C

Notes:

1) This parameter is guaranteed by design.