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LX1691A

Enhanced Multi-Mode CCFL Controller

Microsemi Corporation 

LX1691A

TM

®

Enhanced Multi-Mode CCFL Controller

PRODUCTION DATA SHEET

RECOMMENDED OPERATING CONDITIONS

Parameter

Supply Voltage (VDDP)

Digital Input (ENABLE)

Analog Inputs (I_SNS, OP_SNS, VIN_SNS)

BRITE_IN Linear DC Voltage Range

BRITE_OUT, BRITE_R Maximum Source Current

Digital Inputs (DIM_MODE, DD_CLK)

Internal Oscillator Frequency (I_R Resistor Range 42K to 175K)

Maximum Output Gate Charge (AOUT, BOUT)

LX1691A

Min

Typ

2.8

0

-2

0

0

60

10

Max

5.5

5.5

2

2

100

5.5

250

20

Units

V

V

VPK

V

µA

V

KHz

nC

ELECTRICAL CHARACTERISTICS (CONTINUED)

Unless otherwise specified, the following specifications apply over the operating ambient temperature -40°C ≤ TA ≤ 85°C except where

otherwise noted. Test conditions: VDDP =3.3 to 5.5 V, I_R =80.6KΩ, BRITE_R = BRITE_OUT = 20KΩ, OP_SNS = VIN_SNS = 0V,

DD_CLK = DIM_MODE = Floating

Parameter

` POWER

Power Supply Input Voltage

Regulator Output Voltage

VDDA Drop Out Voltage

VDDP Operating 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

` BIAS BLOCK

Voltage at Pin I_R

Pin I_R Max Source Current

Voltage Reference Voltage

(Internal node)

` OUTPUT BUFFER BLOCK

Output Sink Current

Output Source Current

Output low Voltage

Output high Voltage

Symbol

Test Conditions

V_BATT

VDDA

VDROPOUT

IBB

IDD_SLEEP

VDDP= 3.3 to 5.5V, I Load = 0 mADC

I Load = 0 mADC

CAOUT = CBOUT = 1000pF; fOSC = 130kHz

VENABLE = 0.8V, VDDP = 5.5V

VTH_ENRUN

VTH_ENSHDN

IIH_ENABLE ENABLE = 2V

IIH_ENABLE ENABLE = 5V

IIL_ENABLE ENABLE = 0V

VTH_UVLO

VH_UVLO

Run Mode

Shutdown Mode

V_IR

IMAX_IR

V2P0

80.6K

ISK_OUTBUF VAOUT, VBOUT = VDDP , VDDP = 3.3V

IS_OUTBUF VAOUT, VBOUT = 0V, VDDP = 3.3V

VOL_OUTBUF AOUT, BOUT =Low , VDDP = 5V

VOHJ_OUTBUF AOUT, BOUT = High, VDDP = 5V

LX1691A

Units

Min Typ Max

2.8

5.5

V

2.85 3.0 3.15

V

50

150 mV

10

15

mA

10

µA

1.5

2.8

V

0.8

1.1

V

2

12

µA

35

80

µA

-1

0

1

µA

2.55 2.8

V

2.1 2.35

200

mV

0.975

1.025 V

100

µA

1.98

2.02

V

50

100 150 mA

50

100 150 mA

0

0.4

V

4.9

5

V

Copyright © 2003

Rev. 1.0, 8/31/2004

Microsemi

Integrated Products

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

Page 5

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