LX1689 Ver la hoja de datos (PDF) - Microsemi Corporation
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LX1689 Datasheet PDF : 14 Pages
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LX1689
TM
®
Third Generation CCFL Controller
PRODUCTION DATA SHEET
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 (AOUT, BOUT)
LX1689
Min
Typ
3
0
-3
0.5
0
0
10
Max
28
6.5
3
2
5
5.5
20
Units
V
V
VPK
V
V
V
nC
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the operating ambient temperature: LX1689CPW: 0°C ≤ TA ≤ 70°C,
LX1689IPW: -40°C ≤ TA ≤ 85°C, except where otherwise noted.
Test conditions: V_BATT =3.3 to 28 VDC, I_R =80.6KΩ, BRITE_R = BRITE_OUT = 10KΩ, BRITE_C =open, ICOMP =100pf
Parameter
` POWER
Symbol
Test Conditions
LX1689
Units
Min Typ Max
Regulator Output Voltage
VDD_P Drop Out Voltage
VDD_P
∆VDD_P
V_BATT = 6 to 28 V, I Load = 0 – 5mADC
∆VDD_P = -1% , I Load = 5mADC; TA = 25°C
5.05 5.3 5.55
V
50
mV
Regulator Output Voltage
VDD_A V_BATT = 3.5 to 28V, I Load = 0 – 5mADC
2.75 2.95 3.15
V
VDD_A Dropout Voltage
∆VDD_A ∆VDD_A = -1% , I Load = 5mADC; TA = 25°C
100
mV
VBATT Static Current
IBATT
5.5
9
mA
VBATT Dynamic Current
Sleep Mode Current
Sleep Mode Current
` ENABLE INPUT
IBATT
IBATT_SLEEP
IBATT_SLEEP
CAOUT = CBOUT = 1000pF
VENABLE ≤ 0.4V; VBATT = 5V
VENABLE ≤ 0.4V; VBATT = 28V
10
17
mA
2.8
5
µA
22
35
µA
Run Threshold
VTH_ENRUN
1.1
1.4
V
Shutdown Threshold
VTL_ENSHDN
0.4
1.1
V
Input High Current
Input High Current
Input Low Current
` UNDER VOLTAGE LOCKOUT
IIH_ENABLE
IIH_ENABLE
IIL_ENABLE
ENABLE = 2V
ENABLE = 5V
ENABLE = 0V
2
12
µA
35
80
µA
-1
0
1
µA
Startup Threshold
UVLO Threshold
VT_UVLO
Run Mode
Shutdown Mode
2.55 2.8
V
2.1 2.35
V
UVLO Hysteresis
VH_UVLO
200
mV
Copyright © 2000
Rev. 1.1, 2006-02-27
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
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