MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC

MP4051 Rev. 1.01

www.MonolithicPower.com

3

1/21/2014

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© 2014 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

Supply Voltage

Operating Range

After turn on

10.3

23

V

Turn-on Threshold

12.6

13.6

14.6

V

Turn-off Threshold

8.4

9.0

9.6

V

Hysteretic Voltage

4.5

V

Supply Current

Start-up Current

20

30

µA

Quiescent Current

No switching

0.75

1

mA

Operating Current

2

3

mA

Multiplier

Operation Range

0

3

V

Gain

K

(5)

1

1/V

Error Amplifier

Feedback Voltage

0.403

0.414

0.425

V

Transconductance

(6)

222

µA/V

Upper Clamp Voltage

5.3

5.65

6

V

Lower Clamp Voltage

1.3

1.5

1.7

V

Max Source Current

(6)

75

µA

Max Sink Current

(6)

-400

µA

Current Sense Comparator

Leading Edge Blanking Time

280

ns

Current Sense Clamp Voltage

2.3

2.5

2.7

V

Zero Current Detector

Zero Current Detect threshold

0.31

V

Zero Current Detect Hysteresis

650

mV

ZCD Blanking Time

After turn-off

1.8

2.5

3.2

μs

Over-voltage Blanking Time

After turn-off

1.5

μs

Over-voltage Threshold

5.1

5.4

5.7

V

Over-current Blanking Time

After turn-on,

280

ns

Over-current Threshold

0.57

0.60

0.63

V

Minimum Off Time

2

3.5

5

µs

Starter

Start Timer Period

130

µs