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參數(shù)資料
| 型號： | 5962-9462201Q2A |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | FLUORESCENT LIGHT CONTROLLER, 78 kHz SWITCHING FREQ-MAX, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 848K |
| 代理商： | 5962-9462201Q2A |
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Open Lamp Detect Section
Soft Start Threshold
VEA(-) = 0V
2.9
3.4
3.8
V
Error Amp Threshold
VSS = 4.2V
0.7
1.0
1.3
V
Soft Start Current
VSS = 2V
10
20
40
A
Error Amp 2 Section
Input Offset Voltage
VO = 2V
0
10
mV
Input Bias Current
-0.2
-1
A
Input Offset Current
0.5
A
Open Loop Gain
VO = 0.5 to 3V
65
90
dB
Output High
VID = 100mV, VO = 2V
3.6
4
4.4
V
Output Low
VID = -100mv, VO = 2V
0.1
0.2
V
Output Source Current
VID = 100mV, VO = 2V
-350
-500
A
Output Sink Current
VID = -100mV, VO = 2V
10
20
mA
Common Mode Range
0VIN-2V
V
Unity Gain Bandwidth
TJ = 25
°C (Note 4)
1
MHz
Isense Section
Threshold
0.475
0.525
0.575
V
Output Section
Output Low Level
IOUT = 0, Outputs A and B
0.05
0.2
V
IOUT = 10mA
0.1
0.4
V
IOUT = 100mA
1.5
2.2
V
Output High Level
IOUT = 0, Outputs C and D
14.7
14.9
V
IOUT = -10mA
13.5
14.3
V
IOUT = -100mA
12.5
13.5
V
Rise Time
TJ = 25
°C, Cl = 1nF(Note 4)
30
80
ns
Fall Time
TJ = 25
°C, Cl = 1nF(Note 4)
30
80
ns
Output Dynamics
Out A and B Duty Cycle
48
49.9
50
%
Out C Max Duty Cycle
VEA1(-) = 1V
100
%
Out C Min Duty Cycle
VEA1(-) = 2V
0
%
Out D Max Duty Cycle
VEA2(+)- VEA2(-) = 100mV
92
96
%
Out D Min Duty Cycle
VEA2(+)- VEA2(-) = -100mV
0
%
Under Voltage Lockout Section
Start-Up Threshold
3.7
4.2
4.5
V
Hysterisis
120
200
280
mV
Enable Section
Input High Threshold
2V
Input low Threshold
0.8
V
Input Current
VENABLE = 5V
150
400
A
Supply Current Section
VCC Supply Current
VCC = 20V
8
14
mA
VC Supply Current
VC=20V
7
12
mA
ICC Disabled
VCC = 20V, VENABLE = 0V
1
10
A
UC1871
UC2871
UC3871
ELECTRICAL
CHARACTERISTICS (cont.)
Unless otherwise stated, these parameters apply for TA = -55
°C to +125°C for the UC1871;
-25
°C to +85°C for the UC2871; 0°C to +70°C for the UC3871; VCC = 5V, VC = 15V,
VENABLE = 5V, CT = 1nF, Zero Det = 1V.
Note 3: Unless otherwise specified, all voltages are with respect to ground.
Currents are positive into, and negative out of the specified terminal.
Note 4: Guaranteed by design but not 100% tested in production.
Note 5: Impedance below specified maximum guarantees proper operation of the Open Lamp Detect.
3
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