MP4050 – NON-ISOLATED, HIGH BRIGHTNESS, LED DRIVER

MP4050 Rev.1.02

www.MonolithicPower.com

3

1/18/2016

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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

4.5

5

6

mA

Leakage Current from Pin Drain

14

20

μA

Supply Voltage Management (VCC Pin)

VCC Increasing Level at which the

internal regulator stops

4.05

4.25

4.45

V

VCC Decreasing Level at which the

internal regulator Turns-On

3.85

4.05

4.25

V

VCC Hysteresis between regulator

ON/OFF

0.14

0.20

0.26

V

VCC Decreasing level at which the

IC stops working

3.17

3.27

3.37

V

VCC Hysteresis between regulator

OFF to VCC stop

STOP

1.23

1.38

1.52

V

VCC Decreasing Level at which the

protection Phase Ends

2.10

2.35

2.60

V

Internal IC Consumption

D=84%

350

400

uA

Internal IC Consumption, Latch off

Phase

18

21

μA

Internal MOSFET (Drain Pin)

Break Down Voltage

500

V

On-State resistance

7.2

10

Ω

Current Sampling Management (Source Pin)

Peak Current Limit

0.42

0.45

0.49

V

Leading edge blanking

200

ns

Feedback Threshold to turn on the

primary MOSFET

0.188

0.194

0.200

V

Minimum OFF time limitation

3.5

4.7

5.9

μs

Maximum ON time limitation

18

25

33

μs