Lamp replacement (continued)

CONTENTS

67

Notes

• When the CALL button is pressed, the “Lamp

 

time” (the approximate amount of time the lamp

 

has been used) will be displayed. 41

The lamp should be replaced if the total working

 

time exceeds about 1,000 hours.

 

When the “Lamp time” is displayed as 1000 hours,

 

the icon

appears. It will disappear when you

 

do some operation.

Attach the lamp cover firmly after replacing the

 

lamp. If it is not set correctly, the power will not

 

turn on.

 

Use a new lamp when replacing it.

The lamp is made of glass and is very fragile. Do

 

not touch the lamp with your bare hands and do

 

not jolt or damage it. Do not try to use an

 

exhausted lamp.

5

Load a new lamp.

Slide until it hits the bottom and tighten the two fixing screws.

A small amount of inorganic mercury harmful to

environment is used for the lamp. Dispose of the

exhausted lamp according to the rules of your

area.

6

3

2

Attach the lamp cover.

Slide the cover into place and tighten the two screws.

1

Maintenance

7

Reset the lamp timer.

 

 

Refer to the lamp instructions for resetting.

Page 67
Image 67
Toshiba TLP381, TLP380 owner manual Load a new lamp, Attach the lamp cover, Reset the lamp timer

TLP381, TLP380 specifications

The Toshiba TLP380 and TLP381 are advanced optoisolators designed for various applications requiring reliable isolation and switching control. These devices are particularly valuable in communication, industrial, and consumer electronics, where signal integrity and noise immunity are crucial.

The TLP380 is a phototransistor optoisolator, featuring a gallium arsenide infrared LED and a phototransistor. With a minimum isolation voltage of 5,000 VRMS, it provides high voltage isolation between input and output, making it an excellent choice for protecting sensitive components from high voltages and surges. The TLP380 offers a high-speed switching capability, with a rise time of around 4 μs, enabling it to transmit signals efficiently in digital circuits.

On the other hand, the TLP381 is also a phototransistor optoisolator but specifically optimized for lower input current, making it more power-efficient. It offers similar isolation voltage ratings and switching characteristics to the TLP380, but with a lower input current threshold, which can be particularly advantageous in battery-powered applications. The lower current requirement helps extend battery life and minimizes power consumption in portable devices.

Both TLP380 and TLP381 devices feature a wide temperature range, making them suitable for various environmental conditions. Their operating temperature ranges from -40°C to +100°C, ensuring reliable performance under extreme conditions. Additionally, with their compact DIP packages, they are easy to integrate into crowded PCB layouts, making them a preferred choice for designers targeting space-constrained applications.

In terms of characteristics, both models provide low output voltage saturation and high-speed operation, which are critical in achieving fast response times in control circuits. The combination of robust isolation, efficient power consumption, and temperature stability makes the TLP380 and TLP381 versatile solutions for isolating signals in a myriad of electronic systems.

In summary, the Toshiba TLP380 and TLP381 optoisolators are engineered for high-performance signal isolation, offering superior technologies and characteristics that cater to a range of applications. Their reliability, efficiency, and compact design make them a compelling choice for engineers and designers looking to enhance their electronic systems.