Overview
The CAT4237TD-GT3, produced by onsemi, is a High Voltage CMOS Boost White LED Driver. This integrated circuit is designed as a DC/DC step-up converter, ideal for driving white LEDs with an accurate constant current. Although the CAT4237TD-GT3 is currently obsolete and no longer manufactured, it remains relevant for existing designs and maintenance of older systems.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage - Min | 2.8 V |
| Input Voltage - Max | 5.5 V |
| Output Voltage | 30 V |
| Output Current / Channel | 40 mA |
| Switching Frequency | 1 MHz |
| Maximum Operating Temperature | +85°C |
| Low Level Output Current | 1 mA |
Key Features
- High Voltage CMOS Boost Converter
- Constant Current Output ideal for driving LEDs
- Operation at a constant switching frequency of 1 MHz
- Wide input voltage range from 2.8 V to 5.5 V
- High output voltage capability up to 30 V
- Low level output current of 1 mA
Applications
- White LED backlighting in LCD displays
- LED lighting in consumer electronics
- Automotive LED lighting systems
- General LED driver applications requiring high voltage and constant current
Q & A
- What is the primary function of the CAT4237TD-GT3?
The CAT4237TD-GT3 is a High Voltage CMOS Boost White LED Driver, designed to deliver an accurate constant current for driving LEDs.
- What is the input voltage range for the CAT4237TD-GT3?
The input voltage range is from 2.8 V to 5.5 V.
- What is the maximum output voltage of the CAT4237TD-GT3?
The maximum output voltage is 30 V.
- What is the switching frequency of the CAT4237TD-GT3?
The switching frequency is 1 MHz.
- What is the maximum operating temperature for the CAT4237TD-GT3?
The maximum operating temperature is +85°C.
- Is the CAT4237TD-GT3 still in production?
No, the CAT4237TD-GT3 is currently obsolete and no longer manufactured.
- What are some common applications for the CAT4237TD-GT3?
Common applications include white LED backlighting in LCD displays, LED lighting in consumer electronics, and automotive LED lighting systems.
- What is the output current capability per channel for the CAT4237TD-GT3?
The output current capability per channel is 40 mA.
- What is the low level output current of the CAT4237TD-GT3?
The low level output current is 1 mA.
- Where can I find detailed specifications for the CAT4237TD-GT3?
Detailed specifications can be found in the datasheet available from sources like Mouser, DigiKey, or the official onsemi website.
