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MC7800A bảng dữ liệu(PDF) 6 Page - Motorola, Inc

tên linh kiện MC7800A
Giải thích chi tiết về linh kiện  THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
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nhà sản xuất  MOTOROLA [Motorola, Inc]
Trang chủ  http://www.freescale.com
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MC7800A bảng dữ liệu(HTML) 6 Page - Motorola, Inc

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MC7800, MC7800A, LM340, LM340A Series
6
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS (continued) (Vin = 14 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7808C
Characteristic
Symbol
Min
Typ
Max
Unit
Output Resistance f = 1.0 kHz
rO
0.9
m
Short Circuit Current Limit (TA = 25°C)
ISC
0.2
A
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Imax
2.2
A
Average Temperature Coefficient of Output Voltage
TCVO
–0.4
mV/
°C
ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7808AC
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C)
VO
7.84
8.0
8.16
Vdc
Output Voltage (5.0 mA
≤ IO ≤ 1.0 A, PD ≤ 15 W)
VO
7.7
8.0
8.3
Vdc
10.6 Vdc
≤ Vin ≤ 23 Vdc
Line Regulation (Note 2)
Regline
mV
10.6 Vdc
≤ Vin ≤ 25 Vdc, IO = 500 mA
6.0
15
11 Vdc
≤ Vin ≤ 17 Vdc, IO = 1.0 A
1.7
18
10.4 Vdc
≤ Vin ≤ 23 Vdc, TJ = 25°C
5.0
15
Load Regulation (Note 2)
Regload
mV
5.0 mA
≤ IO ≤ 1.5 A, TJ = 25°C
1.4
25
5.0 mA
≤ IO ≤ 1.0 A
1.0
25
250 mA
≤ IO ≤ 750 mA
0.22
15
Quiescent Current
IB
3.3
6.0
mA
Quiescent Current Change
∆IB
mA
11 Vdc
≤ Vin ≤ 25 Vdc, IO = 500 mA
0.8
10.6 Vdc
≤ Vin ≤ 23 Vdc, IO = 1.0 A, TJ = 25°C
0.8
5.0 mA
≤ IO ≤ 1.0 A
0.5
Ripple Rejection
RR
56
62
dB
11.5 Vdc
≤ Vin ≤ 21.5 Vdc, f = 120 Hz, IO = 500 mA
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
VI – VO
2.0
Vdc
Output Noise Voltage (TA = 25°C)
Vn
10
µV/VO
10 Hz
≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz
rO
0.9
m
Short Circuit Current Limit (TA = 25°C)
ISC
0.2
A
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Imax
2.2
A
Average Temperature Coefficient of Output Voltage
TCVO
–0.4
mV/
°C
NOTES: 1. Tlow = –40°C for MC78XXAC, C
Thigh = +125°C for MC78XXAC, C
2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.


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