LX1689CPW 参数 Datasheet PDF下载

LX1689

I N T E G R A T E D

P R O D U C T S

Third Generation CCFL Controller

P

RODUCTION

D

ATA

S

HEET

RECOMMENDED OPERATING CONDITIONS

Parameter

Supply Voltage (V

_BATT

)

Digital Input (ENABLE)

Analog Inputs (I_SNS, OC_SNS, OV_SNS)

BRITE_IN Linear DC Voltage Range

BRITE_IN PWM Logic Signal Voltage Range

Digital Inputs (DIM_MODE, DIV_248,DIM_CLK)

Maximum Output Gate Charge (A

OUT

, B

OUT

)

WWW .

Microsemi

.C

OM

Min

3

0

-3

0.5

0

0

LX1689

Typ

Max

28

6.5

3

2

5

5.5

Units

V

V

V

PK

V

V

V

nC

10

20

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, the following specifications apply over the operating ambient temperature: LX1689CPW: 0

°

C

≤

T

A

≤

70

°

C,

LX1689IPW: -40°C

≤

T

A

≤

85°C, except where otherwise noted.

Test conditions: V_BATT =3.3 to 28 V

DC

, I_R =80.6K

Ω

, BRITE_R = BRITE_OUT = 10K

Ω

, BRITE_C =open, ICOMP =100pf

Parameter

POWER

Regulator Output Voltage

V

DD_P

Drop Out Voltage

Regulator Output Voltage

V

DD_A

Dropout Voltage

V

BATT

Static Current

V

BATT

Dynamic Current

Sleep Mode Current

Sleep Mode Current

ENABLE INPUT

Run Threshold

Shutdown Threshold

Input High Current

Input High Current

Input Low Current

UNDER VOLTAGE LOCKOUT

Startup Threshold

UVLO Threshold

UVLO Hysteresis

V

T_UVLO

V

H_UVLO

Run Mode

Shutdown Mode

2.1

2.55

2.35

200

2.8

V

V

mV

V

TH_ENRUN

V

TL_ENSHDN

I

IH_ENABLE

I

IH_ENABLE

I

IL_ENABLE

ENABLE = 2V

ENABLE = 5V

ENABLE = 0V

-1

0.4

1.1

1.1

2

35

0

12

80

1

1.4

V

V

µA

µA

µA

V

DD_P

∆V

DD_P

V

DD_A

∆V

DD_A

I

BATT

I

BATT

I

BATT_SLEEP

I

BATT_SLEEP

C

AOUT

= C

BOUT

= 1000pF

V

ENABLE

≤

0.4V; V

BATT

= 5V

V

ENABLE

≤

0.4V; V

BATT

= 28V

V

_BATT

= 6 to 28 V, I Load = 0 – 5mADC

∆V

DD_P

= -1% , I Load = 5mADC; T

A

= 25°C

V

_BATT

= 3.5 to 28V, I Load = 0 – 5mADC

∆V

DD_A

= -1% , I Load = 5mADC; T

A

= 25°C

2.75

5.05

5.3

50

2.95

100

5.5

10

2.8

22

9

17

5

35

3.15

5.55

V

mV

V

mV

mA

mA

µA

µA

Symbol

Test Conditions

Min

LX1689

Typ

Max

Units

E

LECTRICALS

E

LECTRICALS

Copyright



2000

Rev. 1.0b, 2003-03-31

Microsemi

Integrated Products

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

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