參數(shù)資料
型號: L7812CT
廠商: 意法半導(dǎo)體
英文描述: positive voltage regulators
中文描述: 正電壓調(diào)節(jié)器
文件頁數(shù): 23/34頁
文件大?。?/td> 1801K
代理商: L7812CT
L7800 SERIES
23/34
Figure 35: Adjustable Output Voltage with Temperature Compensation
NOTE: Q
2
is connected as a diode in order to compensate the variation of the Q
1
V
BE
with the temperature. C allows a slow rise time of the V
O
.
Figure 36: Light Controllers (V
Omin
= V
XX
+ V
BE
)
Figure 37: Protection against Input Short-Circuit with High Capacitance Loads
Application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see fig. 33) to protect the device
against input short circuit. In this case the input voltage falls rapidly while the output voltage decrease slowly. The capacitance discharges by
means of the Base-Emitter junction of the series pass transistor in the regulator. If the energy is sufficiently high, the transistor may be de-
stroyed. The external diode by-passes the current from the IC to ground.
V
O
= V
XX
( R
)
+ V
BE
1
V
O
rises when the light goes up
V
O
falls when the light goes up
相關(guān)PDF資料
PDF描述
L7812CV positive voltage regulators
L7812T Flat Jacketed Cable, 3603/50 28 AWG, .050 (1.27)
L7815 Flat Jacketed Cable, 3603/60 28 AWG, .050 (1.27)
L7815C Flat Jacketed Cable, 3603/64 28 AWG, .050 (1.27)
L7815C-V 5.0 AMP POSITIVE VOLTAGE REGULATOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L7812CV 功能描述:線性穩(wěn)壓器 - 標準 12V 1.0A Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L
L7812C-V 制造商:ST 功能描述:POSITIVE VOLTAGE REGULATORS
L7812CV 3Z 制造商:STMicroelectronics 功能描述:
L7812CV 制造商:STMicroelectronics 功能描述:IC V REG +12V 7812 TO-220-3
L7812CV-DG 功能描述:線性穩(wěn)壓器 - 標準 POS Voltage Reg IC 3-Terminal 1.5A RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L