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| 型号： | LT1186FCS#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC SWTCH REG CCFL DAC PROG16SOIC |
| 标准包装： | 50 |
| 系列： | Bits-to-Nits™ |
| 类型： | CCFL 控制器 |
| 频率： | 175 ~ 225 kHz |
| 电流 - 电源： | 6mA |
| 电源电压： | 3 V ~ 6.5 V |
| 工作温度： | 0°C ~ 100°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
LT1186F
ABSOLUTE M AXI M U M RATINGS
PACKAGE/ORDER I N FOR M ATIO N
V CC ........................................................................... 7V
BAT, Royer, BULB .................................................. 30V
CCFL V SW ............................................................... 60V
Shutdown ................................................................. 6V
I CCFL Input Current .............................................. 10mA
DIO Input Current (Peak, < 100ms).................... 100mA
Digital Inputs ................................ – 0.3V to V CC + 0.3V
Digital Outputs .............................. – 0.3V to V CC + 0.3V
CCFL PGND 1
I CCFL 2
DIO 3
CCFL V C 4
AGND 5
SHDN 6
CLK 7
TOP VIEW
16 CCFL V SW
15 BULB
14 BAT
13 ROYER
12 V CC
11 I OUT
10 D OUT
ORDER PART
NUMBER
LT1186FCS
LT1186FIS
DAC Output Voltage ....................... – 20V to V CC + 0.3V
Junction Temperature (Note 1) ........................... 100 ° C
CS 8
S PACKAGE
9
D IN
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
16-LEAD PLASTIC SO
T JMAX = 100 ° C, θ JA = 100 ° C/W
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
T A = 25 ° C, V CC = SHUTDOWN = D IN = CS = 3.3V, BAT = Royer = BULB = 12V, I CCFL = CCFL V SW = Open, D OUT = Three-State, DIO = I OUT
= CLK = GND, CCFL V C = 0.5V, unless otherwise specified.
xSYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I Q
I SHDN
Supply Current
SHUTDOWN Supply Current
SHUTDOWN Input Bias Current
SHUTDOWN Threshold Voltage
3V ≤ V CC ≤ 6.5V, 1/2 Full-Scale DAC Output Current
SHUTDOWN = 0V, CCFL V C Open (Note 2)
SHUTDOWN = 0V, CCFL V C = Open
q
q
0.45
6
35
5
0.85
9.5
70
10
1.2
mA
μ A
μ A
V
f
DC(MAX)
Switching Frequency
Maximum Switch Duty Cycle
Measured at CCFL V SW , I SW = 50mA,
I CCFL = 100 μ A, CCFL V C = Open
Measured at CCFL V SW
q
175
160
80
200
200
85
225
240
kHz
kHz
%
q
75
85
%
BV
Switch Breakdown Voltage
Switch Leakage Current
Measured at CCFL V SW
V SW = 12V, Measured at CCFL V SW
V SW = 30V, Measured at CCFL V SW
60
70
20
40
V
μ A
μ A
I CCFL Summing Voltage
? I CCFL Summing Voltage for
? Input Programming Current
CCFL V C Offset Sink Current
3V ≤ V CC ≤ 6.5V
I CCFL = 0 μ A to 100 μ A
CCFL V C = 1.5V, Positive Current Measured into Pin
q
0.425
0.385
–5
0.465
0.465
5
5
0.505
0.555
15
15
V
V
mV
μ A
? CCFL V C Source Current for
? I CCFL Programming Current
CCFL V C to DIO Current Servo Ratio
CCFL V C Low Clamp Voltage
CCFL V C High Clamp Voltage
CCFL V C Switching Threshold
I CCFL = 25 μ A, 50 μ A, 75 μ A, 100 μ A,
CCFL V C = 1.5V
T J < 0 ° C
DIO = 5mA out of Pin, Measure I(V C ) at CCFL V C = 1.5V
V BAT – V BULB = BULB Protect Servo Voltage
I CCFL = 100 μ A
CCFL V SW DC = 0%
q
q
q
q
q
q
4.70
4.60
94
1.7
0.6
4.95
4.95
99
0.1
2.1
0.95
5.20
5.20
104
0.3
2.4
1.3
μ A/ μ A
μ A/ μ A
μ A/mA
V
V
V
2
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