LT1186F 查看數據表（PDF） - Linear Technology
零件编号
产品描述 (功能)
生产厂家
LT1186F Datasheet PDF : 16 Pages
| |||
LT1186F
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.
SYMBOL PARAMETER
SERIAL INTERFACE (Notes 4, 5)
tCSLO
tCSHI
CS Low Time
CS High Time
CONDITIONS
fCLK = 2MHz
MIN TYP MAX UNIT
q 4550
ns
q 400
ns
The q denotes specifications which apply over the specified operating
temperature range.
Note 1: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formula:
LT1186FCS: TJ = TA + (PD)(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 ILIM = 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 PERFORMANCE CHARACTERISTICS
Supply Current
vs Temperature
10
9
8
7
6
5
4
3
2
1
0
–75 – 50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1186F • G01
Shutdown Threshold Voltage
vs Temperature
1.2
1.1
1.0
0.9
0.8
0.7
0.6
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1186F • G04
Shutdown Current
vs Temperature
100
90
8O
70
60
50
40
VCC = 5V
30
VCC = 3V
20
10
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1186F • G02
Frequency vs Temperature
240
230
220
210
200
190
180
170
160
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1186F • G05
4
Shutdown Input Bias Current
vs Temperature
6
5
4
3
VCC = 5V
2
VCC = 3V
1
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1186F • G03
Maximum Duty Cycle
vs Temperature
95
93
91
89
87
85
83
81
79
77
75
–75 – 50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1186F • G06
Share Link: 