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UC1825A-SP データシート(PDF) 7 Page - Texas Instruments

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部品番号 UC1825A-SP
部品情報  Class-V, Radiation Hardened High-Speed PWM Controller
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

UC1825A-SP データシート(HTML) 7 Page - Texas Instruments

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130
120
110
100
90
80
70
60
50
40
30
20
10
0
-10
-20
-30
Gain-Full Load
10
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
Frequency (Hz)
Ove
rall Ga
in
– F
ull L
oad
EA
Comp
ensa
tio
n
CTL–
Output Full Load
0
-90
180
Full
Phase
130
120
110
100
90
80
70
60
50
40
30
20
10
0
-10
-20
-30
Gain-Light Load
10
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
Frequency (Hz)
Ove
rall Ga
in
– Lig
ht L
oad
EA
Comp
ensa
tio
n
CTL–
Outpu Light Load
0
-90
180
Light
Phase
7
UC1825A-SP
www.ti.com
SLUS873C – JANUARY 2009 – REVISED DECEMBER 2016
Product Folder Links: UC1825A-SP
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
Electrical Characteristics (continued)
TA = –55°C to 125°C, RT = 3.65 kΩ, CT = 1 nF, VCC = 12 V, TA = TJ (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CURRENT LIMIT, START SEQUENCE, FAULT
ISS
Soft-start charge current
VSS = 2.5 V
8
14
20
μA
VSS
Full soft-start threshold voltage
4.3
5
V
IDSCH
Restart discharge current
VSS = 2.5 V
100
250
350
μA
ISS
Restart threshold voltage
0 V
≤ VILIM ≤ 1.5 V
0.3
0.5
V
IBIAS
ILIM bias current
15
μA
ICL
Current limit threshold voltage
0.95
1
1.05
V
Overcurrent threshold voltage
1.14
1.2
1.26
V
td
Delay-to-output time, ILIM(1)
VILIM = 0-V to 2-V step
50
80
ns
OUTPUT
Low-level output saturation voltage
IOUT = 20 mA
0.25
0.45
V
IOUT = 200 mA
1.2
2.2
High-level output saturation voltage
IOUT = –20 mA
1.9
2.9
V
IOUT = –200 mA
2
3
tr, tf
Rise/fall time(1)
CL = 1 nF
20
45
ns
UNDERVOLTAGE LOCKOUT (UVLO)
Start threshold voltage
8.3
9.2
9.6
V
UVLO hysteresis
0.4
0.8
1.25
V
SUPPLY CURRENT
Isu
Start-up current
VC = VCC = 8 V
100
300
μA
ICC
Input current
28
36
mA
7.6 Typical Characteristics
Figure 1. Gain: Light Load
Figure 2. Gain: Full Load


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