LT1186F 查看數據表（PDF） - Linear Technology
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LT1186F Datasheet PDF : 16 Pages
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LT1186F
ABSOLUTE MAXIMUM RATINGS
VCC ........................................................................... 7V
BAT, Royer, BULB .................................................. 30V
CCFL VSW ............................................................... 60V
Shutdown ................................................................. 6V
ICCFL Input Current .............................................. 10mA
DIO Input Current (Peak, < 100ms).................... 100mA
Digital Inputs ................................ – 0.3V to VCC + 0.3V
Digital Outputs .............................. – 0.3V to VCC + 0.3V
DAC Output Voltage ....................... – 20V to VCC + 0.3V
Junction Temperature (Note 1) ........................... 100°C
Operating Ambient Temperature Range
LT1186FC ............................................ 0°C to 100°C
LT1186FI .......................................... – 40°C to 100°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
CCFL PGND 1
ICCFL 2
DIO 3
CCFL VC 4
AGND 5
SHDN 6
CLK 7
CS 8
16 CCFL VSW
15 BULB
14 BAT
13 ROYER
12 VCC
11 IOUT
10 DOUT
9 DIN
S PACKAGE
16-LEAD PLASTIC SO
TJMAX = 100°C, θJA = 100°C/W
ORDER PART
NUMBER
LT1186FCS
LT1186FIS
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
TA = 25°C, VCC = SHUTDOWN = DIN = CS = 3.3V, BAT = Royer = BULB = 12V, ICCFL = CCFL VSW = Open, DOUT = Three-State, DIO = IOUT
= CLK = GND, CCFL VC = 0.5V, unless otherwise specified.
xSYMBOL PARAMETER
IQ
ISHDN
Supply Current
SHUTDOWN Supply Current
SHUTDOWN Input Bias Current
SHUTDOWN Threshold Voltage
f
Switching Frequency
DC(MAX) Maximum Switch Duty Cycle
CONDITIONS
3V ≤ VCC ≤ 6.5V, 1/2 Full-Scale DAC Output Current
SHUTDOWN = 0V, CCFL VC Open (Note 2)
SHUTDOWN = 0V, CCFL VC = Open
Measured at CCFL VSW, ISW = 50mA,
ICCFL = 100µA, CCFL VC = Open
Measured at CCFL VSW
BV
Switch Breakdown Voltage
Switch Leakage Current
ICCFL Summing Voltage
Measured at CCFL VSW
VSW = 12V, Measured at CCFL VSW
VSW = 30V, Measured at CCFL VSW
3V ≤ VCC ≤ 6.5V
∆ICCFL Summing Voltage for
∆Input Programming Current
CCFL VC Offset Sink Current
∆CCFL VC Source Current for
∆ICCFL Programming Current
CCFL VC to DIO Current Servo Ratio
CCFL VC Low Clamp Voltage
CCFL VC High Clamp Voltage
CCFL VC Switching Threshold
ICCFL = 0µA to 100µA
CCFL VC = 1.5V, Positive Current Measured into Pin
ICCFL = 25µA, 50µA, 75µA, 100µA,
CCFL VC = 1.5V
TJ < 0°C
DIO = 5mA out of Pin, Measure I(VC) at CCFL VC = 1.5V
VBAT – VBULB = BULB Protect Servo Voltage
ICCFL = 100µA
CCFL VSW DC = 0%
MIN
q
q 0.45
175
q 160
80
q 75
60
0.425
q 0.385
–5
q 4.70
q 4.60
q 94
q
q 1.7
q 0.6
TYP
6
35
5
0.85
200
200
85
85
70
0.465
0.465
5
MAX
9.5
70
10
1.2
225
240
20
40
0.505
0.555
15
5
15
4.95 5.20
4.95 5.20
99 104
0.1 0.3
2.1 2.4
0.95 1.3
UNITS
mA
µA
µA
V
kHz
kHz
%
%
V
µA
µA
V
V
mV
µA
µA/µA
µA/µA
µA/mA
V
V
V
2
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