MP174 – NON-ISOLATED OFF-LINE REGULATOR

MP174 Rev. 1.01

www.MonolithicPower.com

4

8/18/2016

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

© 2016 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

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

2.2

4.1

6

mA

Drain pin leakage current

10

17

μA

Breakdown Voltage

700

V

13.5

17

Ω

ON resistance

21

25

Ω

Supply Voltage Management (VCC Pin)

VCC level (increasing) where the internal

regulator stops

5.4

5.6

6

V

VCC level (decreasing) where the

internal regulator turns on

5.1

5.3

5.7

V

VCC regulator on and off hysteresis

130

250

mV

VCC level (decreasing) where the IC

stops

3

3.4

3.6

V

VCC level (decreasing) where the

protection phase ends

2.4

2.8

V

Internal IC consumption

720

μA

Internal IC consumption (No switching)

200

uA

Internal IC consumption, latch-off phase

VCC=5.3V

16

24

μA

Internal Current Sense

Peak current limit

600

660

720

mA

Leading-edge blanking

350

ns

SCP threshold

750

900

mA

Leading-edge blanking for SCP

(1)

180

ns

Feedback Input (FB Pin)

Minimum off time

9.5

12

15

μs

Maximum on time

19

24

31

μs

Primary MOSFET feedback turn-on

threshold

2.45

2.55

2.65

V

OLP feedback trigger threshold

1.6

1.7

1.8

V

OLP delay time

220

ms

Open-loop detection

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.