LX1691
TM
®
Enhanced Multi-Mode CCFL Controller
P
RODUCTION
D
ATA
S
HEET
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage (V
DDP
)
Digital Input (ENABLE)
Analog Inputs (I_SNS, OC_SNS, OV_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 (A
OUT
, B
OUT
)
0
60
10
WWW .
Microsemi
.C
OM
Min
2.8
0
-2
0
LX1691
Typ
Max
5.5
5.5
2
2
100
5.5
250
20
Units
V
V
V
PK
V
µA
V
KHz
nC
ELECTRICAL CHARACTERISTICS (CONTINUED)
Unless otherwise specified, the following specifications apply over the operating ambient temperature -40°C
≤
T
A
≤
85°C except where
otherwise noted. Test conditions: V
DDP
=3.3 to 5.5 V, I_R =80.6KΩ, BRITE_R = BRITE_OUT = 20KΩ, OVSNS = OCSNS = 0V,
DD_CLK = DIM_MODE = Floating
Parameter
POWER
Power Supply Input Voltage
Regulator Output Voltage
V
DDA
Drop Out Voltage
V
DDP
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
V
_IR
I
MAX_IR
V
2P0
1.98
80.6K
0.975
100
2.02
1.025
V
µA
V
V
H_UVLO
V
TH_UVLO
Run Mode
Shutdown Mode
2.1
2.55
2.35
200
mV
2.8
V
V
TH_ENRUN
V
TH_ENSHDN
I
IH_ENABLE
I
IH_ENABLE
I
IL_ENABLE
ENABLE = 2V
ENABLE = 5V
ENABLE = 0V
-1
0.8
1.5
1.1
2
35
0
12
80
1
2.8
V
V
µA
µA
µA
V
_BATT
V
DDA
V
DROPOUT
I
BB
I
DD_SLEEP
V
DDP
= 3.3 to 5.5V, I Load = 0 mADC
I Load = 0 mADC
C
AOUT
= C
BOUT
= 1000pF; f
OSC
= 130kHz
V
ENABLE
= 0.8V, V
DDP
= 5.5V
2.8
2.85
3.0
50
10
10
5.5
3.15
150
15
V
V
mV
mA
µA
Symbol
Test Conditions
Min
LX1691
Typ
Max
Units
E
LECTRICALS
E
LECTRICALS
I
SK_OUTBUF
I
S_OUTBUF
V
AOUT
, V
BOUT
= V
DDP
V
AOUT
, V
BOUT
= 0V
100
100
mA
mA
Copyright
©
2003
Rev. 1.0, 7/16/2004
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
MICROSEMI [ MICROSEMI CORPORATION ]
