LX1691
Enhanced Multi-Mode CCFL Controller
®
TM
PRODUCTION DATA SHEET
RECOMMENDED OPERATING CONDITIONS
LX1691
Parameter
Units
Min
Typ
Max
Supply Voltage (VDDP
)
2.8
0
5.5
5.5
2
V
V
Digital Input (ENABLE)
Analog Inputs (I_SNS, OC_SNS, OV_SNS)
BRITE_IN Linear DC Voltage Range
-2
0
VPK
V
2
BRITE_OUT, BRITE_R Maximum Source Current
Digital Inputs (DIM_MODE, DD_CLK)
100
5.5
250
20
µA
V
0
Internal Oscillator Frequency (I_R Resistor Range 42K to 175K)
60
KHz
nC
Maximum Output Gate Charge (AOUT, BOUT
)
10
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, OVSNS = OCSNS = 0V,
DD_CLK = DIM_MODE = Floating
LX1691
Typ
Parameter
Symbol
Test Conditions
Units
Min
Max
POWER
`
`
Power Supply Input Voltage
Regulator Output Voltage
VDDA Drop Out Voltage
VDDP Operating Current
Sleep Mode Current
V_BATT
VDDA
2.8
2.85
5.5
3.15
150
15
V
V
mV
mA
µA
VDDP= 3.3 to 5.5V, I Load = 0 mADC
3.0
50
10
10
VDROPOUT I Load = 0 mADC
IBB
CAOUT = CBOUT = 1000pF; fOSC = 130kHz
IDD_SLEEP VENABLE = 0.8V, VDDP = 5.5V
ENABLE INPUT
Run Threshold
VTH_ENRUN
1.5
1.1
2
2.8
V
Shutdown Threshold
Input High Current
Input High Current
Input Low Current
UNDER VOLTAGE LOCKOUT
Startup Threshold
UVLO Threshold
VTH_ENSHDN
0.8
-1
V
IIH_ENABLE ENABLE = 2V
IIH_ENABLE ENABLE = 5V
IIL_ENABLE ENABLE = 0V
12
80
1
µA
µA
µA
35
0
`
VTH_UVLO Run Mode
Shutdown Mode
VH_UVLO
2.55
2.35
200
2.8
V
2.1
UVLO Hysteresis
mV
BIAS BLOCK
`
Voltage at Pin I_R
Pin I_R Max Source Current
V_IR
80.6K
0.975
1.98
1.025
2.02
V
IMAX_IR
100
µA
Voltage Reference Voltage
(Internal node)
V2P0
V
OUTPUT BUFFER BLOCK
Output Sink Current
`
ISK_OUTBUF VAOUT, VBOUT = VDDP
IS_OUTBUF VAOUT, VBOUT = 0V
100
100
mA
mA
Output Source Current
Copyright © 2003
Rev. 1.0, 7/16/2004
Microsemi
Page 5
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
MICROSEMI [ Microsemi ]
