參數(shù)資料
型號: MC7818CT
廠商: ON SEMICONDUCTOR
元件分類: 固定正電壓單路輸出標準穩(wěn)壓器
英文描述: THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
中文描述: 18 V FIXED POSITIVE REGULATOR, SFM3
封裝: TO-220, 3 PIN
文件頁數(shù): 31/33頁
文件大?。?/td> 289K
代理商: MC7818CT
MC7800, MC7800A, MC7800AE, NCV7800
http://onsemi.com
7
ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 500 mA, TJ = Tlow to 125°C (Note 9), unless otherwise noted)
MC7808B/NCV7808B
MC7808C
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C)
VO
7.7
8.0
8.3
7.7
8.0
8.3
Vdc
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
VO
Vdc
10.5 Vdc ≤ Vin ≤ 23 Vdc
7.6
8.0
8.4
11.5 Vdc ≤ Vin ≤ 23 Vdc
7.6
8.0
8.4
Line Regulation, TJ = 25°C, (Note 10)
Regline
mV
10.5 Vdc ≤ Vin ≤ 25 Vdc
6.0
160
6.0
32
11 Vdc ≤ Vin ≤ 17 Vdc
1.7
80
1.7
16
Load Regulation, TJ = 25°C (Note 10)
Regload
1.4
160
1.4
35
mV
5.0 mA ≤ IO ≤ 1.5 A
Quiescent Current
IB
3.3
8.0
3.3
8.0
mA
Quiescent Current Change
DIB
mA
10.5 Vdc ≤ Vin ≤ 25 Vdc
1.0
5.0 mA ≤ IO ≤ 1.0 A
0.5
0.5
Ripple Rejection
RR
62
56
62
dB
11.5 Vdc ≤ Vin ≤ 18 Vdc, f = 120 Hz
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
VI VO
2.0
2.0
Vdc
Output Noise Voltage (TA = 25°C)
Vn
10
10
mV/VO
10 Hz ≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz
rO
0.9
0.9
mW
Short Circuit Current Limit (TA = 25°C)
ISC
0.2
0.2
A
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Imax
2.2
2.2
A
Average Temperature Coefficient of Output Voltage
TCVO
0.4
0.4
mV/°C
9. Tlow =0°C for MC78XXC, MC78XXAC,
= *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB
10.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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