参数资料
型号: LT1186FCS#PBF
厂商: Linear Technology
文件页数: 4/16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
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.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
SERIAL INTERFACE (Notes 4, 5)
t CSLO
t CSHI
CS Low Time
CS High Time
f CLK = 2MHz
q
q
4550
400
ns
ns
The q denotes specifications which apply over the specified operating
temperature range.
Note 1: T J is calculated from the ambient temperature T A and power
dissipation P D according to the following formula:
LT1186FCS: T J = T A + (P D )(100 ° C/W)
Note 2: Does not include switch leakage.
Note 3: For duty cycles (DC) between 50% and 80%, minimum
guaranteed switch current is given by I LIM = 1.4(1.393 – DC) for the
LT1186F due to internal slope compensation circuitry.
Note 4 : Timings for all input signals are measured at 0.8V for a High-to-
Low transition and 2.0V for a Low-to-High transition.
Note 5 : Timings are guaranteed but not tested.
TYPICAL PERFOR M A N CE CHARACTERISTICS
10
9
8
7
6
Supply Current
vs Temperature
100
90
8O
70
60
Shutdown Current
vs Temperature
6
5
4
Shutdown Input Bias Current
vs Temperature
5
50
3
V CC = 5V
4
3
2
40
30
20
V CC = 5V
V CC = 3V
2
1
V CC = 3V
1
10
0
–75 – 50 –25 0
25 50 75 100 125 150 175
0
–75 –50 –25 0
25 50 75 100 125 150 175
0
–75 –50 –25 0
25 50 75 100 125 150 175
1.2
1.1
1.0
0.9
0.8
0.7
TEMPERATURE ( ° C)
LT1186F ? G01
Shutdown Threshold Voltage
vs Temperature
240
230
220
210
200
190
180
170
TEMPERATURE ( ° C)
Frequency vs Temperature
LT1186F ? G02
95
93
91
89
87
85
83
81
79
77
TEMPERATURE ( ° C)
Maximum Duty Cycle
vs Temperature
LT1186F ? G03
0.6
–75 –50 –25 0
25 50 75 100 125 150 175
160
–75 –50 –25
0
25 50 75 100 125 150 175
75
–75 – 50 –25 0
25 50 75 100 125 150 175
4
TEMPERATURE ( ° C)
LT1186F ? G04
TEMPERATURE ( ° C)
LT1186F ? G05
TEMPERATURE ( ° C)
LT1186F ? G06
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