MP157 –SMALLEST ENERGY EFFICIENT OFF-LINE REGULATOR WITH EXTENDED POWER RANGE

MP157 Rev. 1.04

www.MonolithicPower.com

5

6/27/2016

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© 2016 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameter

Symbol Condition

Min

Typ

Max

Units

Start-up Current Source (Drain Pin)

Internal regulator supply current

2.5

3.5

4.5

mA

Leakage Current from Pin Drain

--

10

25

μA

Break Down Voltage

500

--

--

V

Supply Voltage Management (VCC Pin)

VCC Increasing Level at which the

internal regulator stops

4.5

4.6

4.9

V

VCC Decreasing Level at which the

internal regulator Turns-On

4.3

4.45

4.7

V

VCC Regulator on and off Hysteresis

--

230

--

mV

VCC Decreasing level at which the IC

stops working

3.2

3.35

3.5

V

VCC Decreasing Level at which the

protection Phase Ends

2.05

2.35

2.65

V

Internal IC Consumption

Duty= 40%

--

--

500

μA

Internal IC Consumption (No Switch)

--

--

165

uA

Internal IC Consumption, Latch off

Phase

--

16

--

μA

Internal MOSFET (Drain Pin)

Break Down Voltage

500

--

--

V

On-State resistance

--

10

--

Ω

Internal Current Sense

Peak Current Limit

500

640

780

mA

Leading edge blanking

--

400

--

ns

SCP point

--

900

1200

mA

Leading edge blanking for SCP

(5)

--

180

--

ns

Feedback input (FB Pin)

Minimum off time

10.6

13.1

15.6

us

Feedback Threshold to turn on the

primary MOSFET

2.45

2.55

2.65

V

Feedback Threshold to trigger the

OLP

1.6

1.7

1.8

V

Over Load Protection Delay time

Fs=37kHz

--

150

--

ms

Open loop detection

--

60

--

mV

Thermal Shutdown

Thermal shutdown threshold

(5)

--

150

--

ºC

Notes:

5) Guarantee by Characterization