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參數資料
| 型號： | UA7918Y |
| 英文描述： | NEGATIVE-VOLTAGE REGULATORS(167.63 k ) |
| 中文描述： | 負穩壓器（167.63十一） |
| 文件頁數： | 6/10頁 |
| 文件大小： | 167K |
| 代理商： | UA7918Y |
μ
A7900 SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS058A – JUNE 1976 – REVISED OCTOBER 1996
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= –19 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7912C
TYP
–12
UNITS
TJ
MIN
–11.5
MAX
–12.5
25
°
C
Output voltage
IO = 5 mA to 1 A,
P
≤
15 W
VI = –14.5 V to –30 V
VI = –16 V to –22 V
VI = –15 V to –25 V, f = 120 Hz
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
VI = –14.5 V to –27 V,
0
°
C to 125
°
C
–11.4
–12.6
V
Input regulation
5
3
80
30
mV
Ripple rejection
0
°
C to 125
°
C
54
60
15
5
dB
Output regulation
200
75
mV
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
–0.8
300
1.1
mV/
°
C
μ
V
V
mA
2
3
Bias current change
VI = –14.5 V to –30 V
IO = 5 mA to 1 A
0.04
0.06
2.1
0.5
0.5
mA
Peak output current
Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken into account separately. All characteristics are measured with a 2-
μ
F capacitor across the input and a 1-
μ
F capacitor across the output.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
25
°
C
A
electrical characteristics at specified virtual junction temperature, V
I
= –23 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7915C
TYP
–15
UNITS
TJ
MIN
–14.4
MAX
–15.6
25
°
C
Output voltage
IO = 5 mA to 1 A,
P
≤
15 W
VI = –17.5 V to –30 V
VI = –20 V to –26 V
VI = –18.5 V to –28.5 V, f = 120 Hz
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
VI = –17.5 V to –30 V,
0
°
C to 125
°
C
–14.25
–15.75
V
Input regulation
5
3
100
50
mV
Ripple rejection
0
°
C to 125
°
C
54
60
20
8
–1
375
1.1
dB
Output regulation
300
150
mV
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
mV/
°
C
μ
V
V
mA
2
3
Bias current change
VI = –17.5 V to –30 V
IO = 5 mA to 1 A
0.04
0.06
2.1
0.5
0.5
mA
Peak output current
Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken into account separately. All characteristics are measured with a 2-
μ
F capacitor across the input and a 1-
μ
F capacitor across the output.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
25
°
C
A
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