參數(shù)資料
型號: MC7808BT
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: 8 V FIXED POSITIVE REGULATOR, SFM3
封裝: TO-220, 3 PIN
文件頁數(shù): 23/33頁
文件大?。?/td> 289K
代理商: MC7808BT
MC7800, MC7800A, MC7800AE, NCV7800
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (Vin = 10 V, IO = 500 mA, TJ = Tlow to 125°C (Note 1), unless otherwise noted)
Characteristic
Symbol
MC7805B, NCV7805
MC7805C
Unit
Min
Typ
Max
Min
Typ
Max
Output Voltage (TJ = 25°C)
VO
4.8
5.0
5.2
4.8
5.0
5.2
Vdc
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
7.0 Vdc ≤ Vin ≤ 20 Vdc
8.0 Vdc ≤ Vin ≤ 20 Vdc
VO
4.75
5.0
5.25
4.75
5.0
5.25
Vdc
Line Regulation (Note 4)
7.5 Vdc ≤ Vin ≤ 20 Vdc, 1.0 A
8.0 Vdc ≤ Vin ≤ 12 Vdc
Regline
5.0
1.3
100
50
0.5
0.8
20
10
mV
Load Regulation (Note 4)
5.0 mA ≤ IO ≤ 1.0 A
5.0 mA ≤ IO ≤ 1.5 A (TA = 25°C)
Regload
1.3
0.15
100
50
1.3
25
mV
Quiescent Current
IB
3.2
8.0
3.2
6.5
mA
Quiescent Current Change
7.0 Vdc ≤ Vin ≤ 25 Vdc
5.0 mA ≤ IO ≤ 1.0 A (TA = 25°C)
DIB
0.5
0.3
0.08
1.0
0.8
mA
Ripple Rejection
8.0 Vdc ≤ Vin ≤ 18 Vdc, f = 120 Hz
RR
68
62
83
dB
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
VI VO
2.0
2.0
Vdc
Output Noise Voltage (TA = 25°C)
10 Hz ≤ f ≤ 100 kHz
Vn
10
10
mV/VO
Output Resistance f = 1.0 kHz
rO
0.9
0.9
mW
Short Circuit Current Limit (TA = 25°C)
Vin = 35 Vdc
ISC
0.2
0.6
A
Peak Output Current (TJ = 25°C)
Imax
2.2
2.2
A
Average Temperature Coefficient of Output Voltage
TCVO
0.3
0.3
mV/°C
1. Tlow =0°C for MC78XXC, MC78XXAC,
= *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB
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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