參數(shù)資料
型號(hào)： MC7818CTG
廠商： ON SEMICONDUCTOR
元件分類： 固定正電壓單路輸出標(biāo)準(zhǔn)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： LEAD FREE, TO-220, 3 PIN
文件頁數(shù)： 8/33頁
文件大?。?/td> 289K
代理商： MC7818CTG
MC7800, MC7800A, MC7800AE, NCV7800
http://onsemi.com
16
ELECTRICAL CHARACTERISTICS (Vin = 27 V, IO = 1.0 A, TJ = Tlow to 125°C (Note 27), unless otherwise noted)
Characteristic
Symbol
MC7818AC
Unit
Min
Typ
Max
Output Voltage (TJ = 25°C)
VO
17.64
18
18.36
Vdc
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
VO
17.3
18
18.7
Vdc
21 Vdc ≤ Vin ≤ 33 Vdc
Line Regulation (Note 28)
Regline
mV
21 Vdc ≤ Vin ≤ 33 Vdc, IO = 500 mA
9.5
22
24 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A
3.2
25
24 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A, TJ = 25°C
3.2
10.5
20.6 Vdc ≤ Vin ≤ 33 Vdc, IO = 1.0 A, TJ = 25°C
8.0
22
Load Regulation (Note 28)
Regload
mV
5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C
2.0
25
5.0 mA ≤ IO ≤ 1.0 A
1.8
25
250 mA ≤ IO ≤ 750 mA
1.5
15
Quiescent Current
IB
3.5
6.0
mA
Quiescent Current Change
DIB
mA
21 Vdc ≤ Vin ≤ 33 Vdc, IO = 500 mA
0.8
21.5 Vdc ≤ Vin ≤ 30 Vdc, TJ = 25°C
0.8
5.0 mA ≤ IO ≤ 1.0 A
0.5
Ripple Rejection
RR
53
57
dB
22 Vdc ≤ Vin ≤ 32 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
mV/VO
10 Hz ≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz
rO
1.3
mW
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
1.5
mV/°C
27.Tlow =0°C for MC78XXC, MC78XXAC,
= *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB
28.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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