MP4653—REAL LIPS CC/CV MODE LLC TV LED DRIVER

MP4653 Rev 1.01

www.MonolithicPower.com

4

6/28/2012

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

© 2012 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

Gate driver GL, GR

Gate Pull-Down

Igate = 20mA

2

Ω

Gate Pull-Up

Igate = 20mA

7.5

Ω

Output Source Current

With 1nF load

1

[5]

A

Output Sink Current

With 1nF load

2

[5]

A

Dead time

600

750

900

ns

Gate Driver Supply Voltage (VCC)

9

9.4

9.8

V

Voltage

8.8

9.3

V

Current

20

50

mA

Vin UVLO threshold

VCC rising

4.2

4.35

4.5

V

VCC UVLO Hysteresis

240

mV

Brightness Dimming Control Range

Analog Dimming Full Scale

Analog dimming

1.13

1.18

1.23

V

PWM Logic Input Threshold

PWM dimming

1.6

1.9

2.2

V

PWM Logic Input Hysteresis

PWM dimming

0.5

V

Supply Current

Supply Current

No driver output

1.6

2.5

mA

Operating Frequency

Minimum Frequency Set Voltage

0.95

1

1.05

V

SS pin voltage

Vss

At normal operation

1.45

1.49

1.53

V

Minimum operating frequency

IFB=0.1V(ICOMP=2.2V),

PWMIN=high

35.6

38.6

41.6

kHz

Maximum Operating Frequency

IFB=0.21V(ICOMP=1V),

PWMIN=high

2.2

2.5

2.8

Fmin

Output PWM Dimming Signal for LED (PWMOUT)

Logic High Voltage

Normal Operation

9V

9.4

9.8

V

Logic Low Voltage

At Fault Condition,

or PWMIN=0

0.3

V

Output PWM Source Current

5

mA

Output PWM Sink Current

100pF on PWMOUT pin

100

mA

LED Current Feedback (IFB)

Magnitude

0.192

0.2

0.208

V

LED

Short

Threshold

for

Immediate action

540

600

660

mV

LED short detection blanking time

100

140

180

ns