LXM1624-12-63 [MICROSEMI]

12V Dual 6W Programmable CCFL Inverter Module; 12V双路6W可编程CCFL逆变器模块


型号：	LXM1624-12-63
厂家：	Microsemi
描述：	12V Dual 6W Programmable CCFL Inverter Module 12V双路6W可编程CCFL逆变器模块
文件：	总6页 (文件大小：235K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

PanelMatch™

LXM1624-12-6x

12V Dual 6W Programmable CCFL Inverter Module

I N T E G R A T E D P R O D U C T S

RODUCTION DATASHEET

KEY FEATURES

DESCRIPTION

The LXM1624-12-6x is a Dual 6W

Output Direct Drive™ CCFL (Cold range dimming, amplitude control results

Cathode Fluorescent Lamp) Inverter in lower ripple on the input supply and

Module specifically designed for driving reduced

LCD backlight lamps. It is ideal for generation. Many STN type panels are

driving typical 10.4” to 15” panels. particularly well suited for current

The modules are available with a amplitude dimming.

For applications not requiring wide

Externally Programmable

Maximum Output Current

Easy to Use Brightness

Control

Analog Current Amplitude

Dimming Method

Output Open/Short-Circuit

Protection and Automatic

Strike-Voltage Regulation and

Timeout

Fixed Frequency Operation

Rated From -20 to 70°C

UL60950 E175910

potential

transient

noise

dimming input that permits brightness

The modules convert DC voltage from

control from either a DC voltage source or the system battery or AC adapter directly

a PWM signal or external Potentiometer. to high frequency, high-voltage waves

The maximum output current is externally required to ignite and operate CCFL

programmable over a range of 5 to 8mA in lamps.

1mA steps to allow the inverter to properly

The modules design is based on

match to a wide array of LCD panel lamp Microsemi’s new LX1689 backlight

APPLICATIONS

current specifications.

LXM1624 modules

controller, which provides a number of

the cost and performance advantages due to

High Brightness Displays

Portable Instrumentation

Desktop Displays

unlike

LXM1623 series does not provide wide the controller’s high level of integration.

range ‘burst’ mode dimming, rather Other benefits of this new topology

Industrial Display Controls

dimming is provided by amplitude control are stable fixed-frequency operation,

of the output current waveform, this limits secondary-side strike-voltage regulation

the potential dim range to typically less and both open/shorted lamp protection

BENEFITS

Compact, Low Profile Design

Programmable output

current allows inverter to

mate with a wide variety of

LCD panel’s specifications

Output Open Circuit Voltage

Regulation Minimizes

than 5:1.

with fault timeout.

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

Protected By U.S. Patents: 5,923,129; 5,930,121; 6,198,234; Patents Pending

Corona Discharge For High

Reliability

PRODUCT HIGHLIGHT

N I V E R S A L

I M

I N G

I N P U T

" P W " , V

N T I O M E T E R

P W M

S ig n a l

D C V o lta g e

S o u rc e

P o te n tio m e te r

L E

I M

5 M A

8 M

M S

PACKAGE ORDER INFO

NVERTER

ATES

DIRECTLY TO

ART

UMBER

OUTPUT CONNECTOR

ANEL

CONNECTORS

LXM1624-12-61 JST SM02(8.0)B-BHS-1-TB or Yeon Ho 20015WR-05A00

LXM1624-12-62 JST SM02B-BHSS-1-TB or Yeon Ho 35001WR-02A00

LXM1624-12-63 Honda QZ-19-A3MYL #02

JST BHR-03VS-1

JST BHSR-02VS-1

Honda QZ-19-3F01

Rev. 1.0c, 2005-01-17

Microsemi

Page 1

Integrated Products

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

PanelMatch™

LXM1624-12-6x

12V Dual 6W Programmable CCFL Inverter Module

I N T E G R A T E D P R O D U C T S

RODUCTION DATASHEET

ABSOLUTE MAXIMUM RATINGS (NOTE 1)

Input Signal Voltage (V_IN1).....................................................................................................................................-0.3V to 15V

Input Power....................................................................................................................................................................... 15W

Output Voltage, no load ............................................................................................................ Internally Limited to 1800V_RMS

Output Current ............................................................................................................................9.5mA_RMS(Internally Limited)

Output Power (each output) ............................................................................................................................................. 6.0W

Input Signal Voltage (

Input)..................................................................................................................... -0.3V to V_IN1

SLEEP

Input Signal Voltage (BRITE) ...............................................................................................................................-0.3V to 5.5V

Ambient Operating Temperature, zero airflow.....................................................................................................-20°C to 70°C

Operating Relative Humidity, non-condensing ................................................................................................................ ≤90%

Storage Temperature Range...............................................................................................................................-40°C to 85°C

Note 1: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified

terminal.

RECOMMENDED OPERATING CONDITIONS (R.C.)

This module has been designed to operate over a wide range of input and output conditions. However, best efficiency and performance

will be obtained if the module is operated under the condition listed in the ‘R.C.’ column. Min. and Max. columns indicate values beyond

which the inverter, although operational, will not function optimally.

Recommended Operating Conditions

Parameter

Symbol

Units

Min

R.C.

Max

Input Supply Voltage Range (Fully Regulated

Lamp Current)

Input Supply Voltage Range (Functional)

Output Power (each output)

Linear BRITE Control Input Voltage Range¹

Lamp Operating Voltage

Lamp Current (Full Brightness)

Operating Ambient Temperature Range

10.8

10.2

13.2

V_IN1

5.5

13.8

6.0

2.0

720

P_O

V_{BRT_ADJ}

V_LAMP

I_OLAMP

T_A

V_RMS

mA_RMS

°C

0.65 to 0.9

480

-20

600

¹ The minimum V_{BRT ADJ}voltage depends on the panel characteristics, depending on the panel it can vary from 0.65V to 0.9V

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of

25°C except where otherwise noted.

LXM1624-12-6x

Parameter

Symbol

Test Conditions

Units

Min

Typ

Max

OUTPUT PIN CHARACTERISTICS

V_{BRT_ADJ}> 2.0V_DC

> 2.0V, V_IN1= 12V_DC

SLEEP

I_SET1= Ground, I_SET2= Ground

V_{BRT_ADJ}> 2.0V_DC

Full Bright Lamp Current (each output)

I_L(MAX)

I_LL%DEV

I_L(MIN)

4.4

5.4

6.4

7.4

5.6

6.6

7.6

8.6

mA_RMS

> 2.0V, V_IN1= 12V_DC

SLEEP

I_SET1= Ground, I_SET2= Open

V_{BRT_ADJ}> 2.0V_DC

Full Bright Lamp Current (each output)

SLEEP

I_SET1= Open, I_SET2= Ground

V_{BRT_ADJ}> 2.0V_DC

SLEEP

I_SET1= Open, I_SET2= Open

V_{BRT_ADJ}> 2.0V_DC

Output Current Lamp to Lamp

Deviation

SLEEP

I_SET1= Open, I_SET2= Open

V_{BRT_ADJ}≤0.5V_DC

Min. Average Lamp Current

(each output)

SLEEP

I_SET1= I_SET2= Ground

-20°C < T_A< 70°C, V_IN1> 10.8V_DC

2²

mA_RMS

Lamp Start Voltage

Operating Frequency

V_LS

f_O

1400

1650

V_RMS

kHz

_{BRT_ADJ}= 2.5V_DC> 2.0V, V_IN1= 12V

SLEEP

² The inverter is capable of a lower output current than may be recommended by the panel manufacturer. It is the user’s responsibility to set

the minimum brightness (BRITE) input at or above the panel specification for minimum current.

Rev. 1.0c, 2005-01-17

Microsemi

Integrated Products

Page 2

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

PanelMatch™

LXM1624-12-6x

12V Dual 6W Programmable CCFL Inverter Module

I N T E G R A T E D P R O D U C T S

RODUCTION DATASHEET

ELECTRICAL CHARACTERISTICS (CONTINUED)

Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of

25°C except where otherwise noted.

LXM1624-12-6x

Parameter

Symbol

Test Conditions

Units

Min

Typ

Max

BRITE INPUT

V_{BRT_ADJ}= 0V_DC

V_{BRT_ADJ}= 3V_DC

-300

2.0

µA_DC

V_DC

Input Current

I_BRT

Minimum Input for Max. Lamp Current V_{BRT_ADJ}I_O(LAMP)= Maximum Lamp Current

Minimum Input for Min. Lamp Current

2.05

V_{BRT_ADJ}I_O(LAMP)= Minimum Lamp Current

0.65*

V_DC

SLEEP INPUT

V_SLEEP

RUN Mode

2.0

V_IN1

0.8

V_DC

SLEEP Mode

SET_1,2INPUT

-0.3

SET_1,2Low Threshold

Input Current

V_L

I_SET

0.4

µA

V_SET≤ 0.4V

-300

POWER CHARACTERISTICS

Sleep Current

I_IN(MIN)

I_IN(RUN)

_IN1= 12V_DC

< 0.8V

0.0

µA_DC

SLEEP

V_IN1= 12V_DC

≥ 2.0V, I_SET1= Open

Run Current

875

mA_DC

I_SET2= Ground, V_LAMP= 600V_RMS

_IN1= 12V_DC≥ 2.0V, I_SET1= Open

SLEEP

I_SET2= Ground, V_LAMP= 600V_RMS

Efficiency

* The Inverter is capable of a lower output current than may be recommended by the panel manufacturer. It is the user’s responsibility to set the minimum brightness

(BRITE) input at or above the panel specification for minimum current. This is likely greater than the 0.65V minimum input.

FUNCTIONAL PIN DESCRIPTION

ONN

DESCRIPTION

CN1 (Molex 53261-0890) Mates with 51021-0800 housing, 50079-8100 pins. Mates with LX9501 input cable assembly

CN1-1

V_IN1

Main Input Power Supply (10.8V < V_IN1< 13.2V)

Power Supply Return

CN1-2

CN1-3

CN1-4

GND

CN1-5

ON/OFF Control. (0V <

< 0.8 = OFF,

>= 2.0V = ON

SLEEP

BRITE

SET₁

SLEEP

CN1-6

CN1-7

CN1-8

Brightness Control (0.65V to 2.0V_DC). 2.0V_DCgives maximum lamp current.

SET₁MSB Connecting this pin to ground decreases the output current (see Table 1)

SET₂LSB Connecting this pin to ground decreases the output current (see Table 1)

SET₂

CN2, CN3 for LXM1624-12-61 and -62 (JST SM02(8.0)B-BHS-1-TB | Yeon Ho 20015WR-05A00 or SM02B-BHSS-1-TB |

Yeon Ho 35001WR-0200)

CN2-1

CN3-1

High voltage connection to high Side of lamp. Connect to lamp terminal with shortest lead length.

DO NOT connect to Ground.

V_HI

CN2-2

CN3-2

Connection to low side of lamp. Connect to lamp terminal with longer lead length.

DO NOT connect to Ground

V_LO

CN2, CN3 for LXM1624-12-63 (Honda QZ-19-A3MYL #02)

CN2-3

CN3-3

High voltage connection to high side of lamp. Connect to lamp terminal with shortest lead length.

DO NOT connect to Ground.

V_HI

CN2-1

CN3-1

Connection to low side of lamp. Connect to lamp terminal with longer lead length.

DO NOT connect to Ground

V_LO

Rev. 1.0c, 2005-01-17

Microsemi

Integrated Products

Page 3

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

PanelMatch™

LXM1624-12-6x

12V Dual 6W Programmable CCFL Inverter Module

I N T E G R A T E D P R O D U C T S

RODUCTION DATASHEET

TABLE 1

OUTPUT CURRENT SETTINGS

SET₁

(Pin 7)

Open*

Ground

SET₂

(Pin 8)

Open*

Ground

Open*

Nominal Output Current

8.0mA

7.0mA

6.0mA

5.0mA

Ground

* If driven by a logic signal it should be open collector or open drain only, not a voltage source.

PHYSICAL DIMENSIONS

L X M1624- 1 2-6X

ROUNDED

OUNTING

HOLE 3MM ±.08 DIA

6MM HEAD CLEARANCE BOTH HOLES

165mm

6.496 in.

151mm

5.945 in.

OUNTING HOLE 3MM ±.08

DIA

CN1

3mm

.118 in

CN2

21mm

0.827in

CN3

18mm

.708 in.

14mm

.551 in

137mm ±0.2mm

5.394 in.

1mm

0.0395 in.

Warning

7.5mm Max

High Voltage Present at

high side of Transformers

and Output Connectors

0.295in.

weight: 20g

PCB tolerances ± 0.5mm , 4-40 recommended mounting screws

Dimensions are in millimeters (inches for reference only)

SIMPLIFIED BLOCK DIAGRAM

+3V

High Voltage

Transformer

V_HI

10K

V_BRITE

Controller

and

Transformer

Driver

V_IN1

0.65 -

2V_DC

+3V

10K

OC_SENSE

SET₁

SET₂

+3V

OV_SENSE

I_SENSE

V_LO

One of Two

Rev. 1.0c, 2005-01-17

Microsemi

Page 4

Integrated Products

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

PanelMatch™

LXM1624-12-6x

12V Dual 6W Programmable CCFL Inverter Module

I N T E G R A T E D P R O D U C T S

RODUCTION DATASHEET

TYPICAL APPLICATION

12V

V_IN1

The brightness control may be a voltage output DAC or

other voltage source, a digital pot or 20K manual pot. The

inverter contains an internal 10K pull-up to 3V to bias the

pot, add a 1.8K to 3.9K resistor to set the lower threshold

voltage. A 3.3V Logic Level PWM signal from a micro-

controller may also be used as shown in Figure 1A.

DAC or

Pot

BRITE

20K

Rx*

V_HI

LXM1624-12-6x

CCFL

TUBE

If you need to turn the inverter ON/OFF remotely, connect

to TTL logic signal to the

input.

SLEEP

SET₁

V_LO

ONE OF

TW O

Connect V_HIto high voltage wire from the lamp. Connect

SET₂

GND

_LOto the low voltage wire (wire with thinner insulation).

Never connect V_LOto circuit ground as this will defeat

lamp current regulation. If both lamp wires have heavy

*Set Rx from 1.8K to 3.9K depending on panel

minimum lamp current requirements

high voltage insulation, connect the longest wire to V_LO

This wire is typically white.≥

Figure 1 – Brightness Control

(Output current set to maximum)

Use the SET₁and SET₂(see Figure 2) inputs to select the

desired maximum output current. Using these two pins in

combination allows the inverter to match a wide variety of

panels from different manufactures. Generally the best

lamp lifetime correlates with driving the CCFL at the

manufactures nominal current setting. However the SET₁

and SET₂inputs allow the user the flexibility to adjust the

current to the maximum allowable output current to

increase panel brightness at the expense of some reduced

lamp life.

PW M Signal

BRITE

from System

P.W .

LXM1624-12-6x

Although the SET pins are designed such that just leaving

them open or grounding them is all that is needed to set the

output current, they can also be actively set. Using a open

collector or open drain logic signal will allow you to

reduce the lamp current for situations where greater dim

range is required, as an example in nighttime situations. In

conjunction with a light sensor or other timer the panel

could be set to higher brightness (maximum output

current) for daytime illumination and lower brightness

(minimum or typical output current) at nighttime. Since

the dim ratio is a factor of both the burst duty cycle and the

peak output current, using this technique the effective dim

ratio can be increased greater than the burst duty cycle

alone. Conversely the SET inputs could be used to

overdrive the lamp temporarily to facilitate faster lamp

warm up at initial lamp turn on. Of course any possible

degradation on lamp life from such practices is the users

responsibility since not all lamps are designed to be

overdriven.

10us to 125uS

26% >P.W. < 100% of

i d

Figure 1A – PWM Brightness Control

12V

V_IN1

BRITE

V_HI

CCFL

TUBE

LXM1624-12-6x

SLEEP

SET₁

V_LO

SET₂

GND

ONE OF

TW O

The inverter has a built in fault timeout function. If the

output is open (lamp disconnected or broken) or shorted

the inverter will attempt to strike the lamp for several

seconds. After about 2 seconds without success the inverter

will shutdown. In order to restart the inverter it is

necessary to toggle the sleep input or cycle the V_IN1input

supply

5.0mA_RMS

6.0mA_RMS

7.0mA_RMS

8.0mA_RMS

L=GND; H=Open

Figure 2 – Max Output Current

(SET₁and SET₂Inputs)

Rev. 1.0c, 2005-01-17

Microsemi

Page 5

Integrated Products

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

PanelMatch™

LXM1624-12-6x

12V Dual 6W Programmable CCFL Inverter Module

I N T E G R A T E D P R O D U C T S

RODUCTION DATASHEET

NOTES

PRODUCTION DATA – Information contained in this document is proprietary to

Microsemi and is current as of publication date. This document may not be modified in

any way without the express written consent of Microsemi. Product processing does not

necessarily include testing of all parameters. Microsemi reserves the right to change the

configuration and performance of the product and to discontinue product at any time.

Rev. 1.0c, 2005-01-17

Microsemi

Page 6

Integrated Products

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

LXM1624-12-63 [MICROSEMI]

相关型号：

LXM1624-12-6X

LXM1626-12-64

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LXM1641-01

LXM1641-02

LXM1641-03

LXM1643-12-61

LXM1643-12-62

LXM1643-12-63

LXM1644-12-61

LXM1653-01

LXM1700-05