參數(shù)資料
型號(hào): MC7812CT
廠商: ON SEMICONDUCTOR
元件分類: 固定正電壓?jiǎn)温份敵鰳?biāo)準(zhǔn)穩(wěn)壓器
英文描述: 1.0A positive voltage regulators
中文描述: 12 V FIXED POSITIVE REGULATOR, SFM3
封裝: TO-220, 3 PIN
文件頁(yè)數(shù): 5/33頁(yè)
文件大小: 289K
代理商: MC7812CT
MC7800, MC7800A, MC7800AE, NCV7800
http://onsemi.com
13
ELECTRICAL CHARACTERISTICS (Vin = 23 V, IO = 500 mA, TJ = Tlow to 125°C (Note 21), unless otherwise noted)
MC7815B/NCV7815B
MC7815C
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C)
VO
14.4
15
15.6
14.4
15
15.6
Vdc
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
VO
Vdc
17.5 Vdc ≤ Vin ≤ 30 Vdc
14.25
15
15.75
18.5 Vdc ≤ Vin ≤ 30 Vdc
14.25
15
15.75
Line Regulation, TJ = 25°C (Note 22)
Regline
mV
17.9 Vdc ≤ Vin ≤ 30 Vdc
8.5
300
8.5
30
20 Vdc ≤ Vin ≤ 26 Vdc
3.0
150
3.0
28
Load Regulation, TJ = 25°C (Note 22)
Regload
1.8
300
1.8
55
mV
5.0 mA ≤ IO ≤ 1.5 A
Quiescent Current
IB
3.5
8.0
3.5
6.5
mA
Quiescent Current Change
DIB
mA
17.5 Vdc ≤ Vin ≤ 30 Vdc
0.8
17.5 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A, TJ = 25°C
1.0
0.7
5.0 mA ≤ IO ≤ 1.0 A
0.5
0.5
Ripple Rejection
RR
58
54
58
dB
18.5 Vdc ≤ Vin ≤ 28.5 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
1.2
1.2
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
1.0
1.0
mV/°C
21.Tlow =0°C for MC78XXC, MC78XXAC,
= *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB
22.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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