MP1048 – FULL BRIDGE CCFL CONTROLLER

MP1048 Rev. 0.9

www.MonolithicPower.com

2

9/24/2007

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2007 MPS. All Rights Reserved.

PACKAGE REFERENCE

Part Number*

Package

Temperature

MP1048EM

TSSOP28

–20

°C to +85°C

MP1048EY

SOIC28

–20

°C to +85°C

* For Tape & Reel, add suffix –Z (eg. MP1048EM–Z)

For RoHS Compliant Packaging, add suffix –LF

(eg. MP1048EM–LF–Z)

ABSOLUTE MAXIMUM RATINGS

(1)

Input Voltage VPRR, VPRL ............................... 24V

Logic Inputs ................................ –0.3V to +6.5V

Inputs SI, LI, LV ................................ –5V to +5V

Junction Temperature...............................150

°C

Power Dissipation...................................... 0.6W

Junction Temperature...............................150

°C

Lead Temperature (Solder) ......................260

°C

Operating Frequency............................. 150KHz

Storage Temperature ..............–55

°C to +150°C

Recommended Operating Conditions

(2)

Input Voltage VPRR, VPRL .................... 10V to 22V

Analog Brightness Voltage VABRT....... 0V to 1.2V

Digital Brightness Voltage VDBRT........ 0V to 1.2V

Enable Voltage VEN............................ 0V to 5.0V

Operating Frequency............. 20KHz to 100KHz

Operating Frequency (Typical) ................ 60KHz

Operating Temperature .............–20

°C to +85°C

Thermal Resistance

(3)

θJA

θJC

TSSOP28 ............................... 82 ...... 20...

°C/W

SOIC28................................... 60 ...... 30...

°C/W

Notes:

1) The device is not guaranteed to function outside of its

operating conditions.

2) Exceeding these ratings may damage the device.

3) Measured on approximately 1” square of 1 oz copper.

ELECTRICAL CHARACTERISTICS

VPRR = VPRL = 17.5V, VBRC = VLCC = GND, TA = +25°C, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Output

Gate Pull-Down

RGD

2.0

Ω

Gate Pull-Up

RGU

20

Ω

Damper On Resistance

RON

1.2

kΩ

EN

Threshold

VTH

1.2

2.0

V

Hysteresis

VTH_HYS

0.3

V

Sync Timing

DBRT Logic Input Threshold

VTH

VBRS = VCC

1.8

2.0

2.3

V

DBRT Logic Input Hysteresis

VTH_HYS

VBRS = VCC

0.2

V

Burst Rate Generator

Source Current

ISRC(BRS)

VBRS = 2V

125

150

175

µA

Lower Threshold

VV(BRS)

2.2

2.35

2.5

V

Upper Threshold

VP(BRS)

3.2

3.4

3.6

V

SI

LI

LV

COMP

AG

FT

LCS

LCC

BRC

BRS

DBRT

ABRT

EN

N/C

PGL

LGL

VCCL

OUTL

UGL

BTL

PRL

PGR

LGR

VCCR

OUTR

UGR

BTR

PRR

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

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