參數(shù)資料
型號(hào)： μA7885
廠商： Texas Instruments, Inc.
英文描述： General Purpose, High Current Positive-Voltage Regulator(8.5V,通用大電流正電壓穩(wěn)壓器)
中文描述： 通用，高電流正電壓穩(wěn)壓器（8.5V，通用大電流正電壓穩(wěn)壓器）
文件頁數(shù)： 6/19頁
文件大?。?/td> 481K
代理商： ΜA7885
μ
A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056B – MAY 1976 – REVISED OCTOBER 1996
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 11 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7806C
TYP
UNIT
TJ
MIN
5.75
MAX
6.25
O
l
25
°
C
6
V
IO = 5 mA to 1 A,
P
≤
15 W
VI = 8 V to 25 V
VI = 9 V to 13 V
VI = 9 V to 19 V,
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
f = 1 kHz
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
VI = 8 V to 21 V,
0
°
C to 125
°
C
5.7
6.3
Input voltage regulation
°
25
C
5
120
60
mV
1.5
75
14
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
59
dB
Output voltage regulation
°
25
C
120
60
mV
4
Output resistance
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
0
°
C to 125
°
C
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.019
–0.8
mV/
°
C
μ
V
V
mA
45
2
4.3
8
Bias current change
VI = 8 V to 25 V
IO = 5 mA to 1 A
0
°
C to 125
°
C
1.3
0.5
mA
Short-circuit output current
Peak output current
Pulse-testing techniques 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 0.33-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
25
°
C
25
°
C
550
2.2
mA
A
electrical characteristics at specified virtual junction temperature, V
I
= 14 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7808C
TYP
UNIT
TJ
MIN
7.7
MAX
8.3
Output voltage
25
°
C
8
V
IO = 5 mA to 1 A,
P
≤
15 W
VI = 10.5 V to 25 V
VI = 11 V to 17 V
VI = 11.5 V to 21.5 V,
IO = 5 mA to 1.5 A
IO = 250 mA to 750 A
f = 1 kHz
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
VI = 10.5 V to 23 V,
0
°
C to 125
°
C
7.6
8.4
Input voltage regulation
°
25
C
6
2
160
80
mV
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
55
72
12
4
dB
Output voltage regulation
°
25
C
160
80
mV
Output resistance
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
0
°
C to 125
°
C
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.016
–0.8
mV/
°
C
μ
V
V
mA
52
2
4.3
8
1
Bias current change
VI = 10.5 V to 25 V
IO = 5 mA to 1 A
0
°
C to 125
°
C
mA
0.5
Short-circuit output current
Peak output current
Pulse-testing techniques 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 0.33-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
25
°
C
25
°
C
450
2.2
mA
A
相關(guān)PDF資料
PDF描述
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