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PDF 78LR05 Data sheet ( Hoja de datos )
| Número de pieza | 78LR05 | |
| Descripción | NJM78LR05 | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 78LR05 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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NJM78LR05
SERIES REGULATOR WITH RESET FUNCTION
■ GENERAL DESCRIPTION
The NJM78LR05 is a series regulator with reset
function.
In case of shut down or output voltage drop, the IC
generates reset signal to a microcomputer.
That is suitable for items with microcomputer, such
as TV sets, remote controller, refrigerator and others.
■ PACKAGE OUTLINE
NJM78LR05BD / CD / DD NJM78LR05BM / CM / DM
■ FEATURES
● Output Current
IO=150mA max.
● Reset Function Including
● Reset Delay Time can be Adjusted
NJM78LR05BL / CL / DL
by an External Capacitance.
● Internal Over Current Protection
● Thermal Shut Down
● Bipolar Technology
● package Outline DIP8, DMP8, SIP8, SOT-89 (5Pin)
NJM78LR05BU / CU / DU
■ RESET THRESHOLD VOLTAGE LINE-UP
Reset Threshold Voltage
Version
Part Number
4.0V D NJM78LR05DX
4.2V C NJM78LR05CX
4.3V B NJM78LR05BX
“X” is package suffix.
■ BLOCK DIAGRAM
Ver.2009-05-18
-1-
1 page  
■ TIMING CHART
NJM78LR05
1 When the input voltage is up to about 0.8V, some voltage is outputted at the reset output because the NJM78LR05
operation is unstable.
2 When the input voltage goes over about 0.8V, the reset output becomes “L”.
3 The output voltage is rising up with the input voltage.
4 When the output voltage goes over (VRT+VRTH), the delay circuit of reset output activates.
VRT : Reset Threshold Voltage
VRTH : Reset Threshold Hysterisis Voltage
5 After the reset output delay time td has passed, the reset output becomes “H”.
6 The output voltage is falling down with the input voltage.
7 When the output voltage is less than VRT, the reset output becomes “L”.
Ver.2009-05-18
-5-
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 78LR05.PDF ] | |
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