MP171 –NON-ISOLATED OFFLINE REGULATOR

MP171 Rev. 1.0

www.MonolithicPower.com

4

9/30/2015

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© 2015 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)

Internal regulator supply current

2.2

4.1

6

mA

DRAIN leakage current

10

17

μA

Breakdown voltage

700

V

On resistance

20

25

Ω

Supply Voltage Management (VCC)

VCC level (increasing) where the internal

regulator stops

5.4

5.7

6

V

VCC level (decreasing) where the

internal regulator turns on

5.1

5.5

5.8

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

2.5

2.8

V

Internal IC consumption

720

μA

Internal IC consumption (no switching)

200

µA

Internal IC consumption, latch-off phase

16

24

μA

Internal Current Sense

Peak current limit

85

105

125

mA

Leading-edge blanking

350

ns

SCP threshold

220

300

400

mA

Leading-edge blanking for SCP

(1)

180

ns

Feedback Input (FB)

Minimum off time

7.5

10

12.5

μs

Maximum on time

13

18

23

μs

Primary MOSFET feedback turn-on

threshold

2.45

2.55

2.65

V

OLP feedback trigger threshold

1.64

1.74

1.84

V

OLP delay time

175

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

NOTE:

1) This parameter is guaranteed by design.