CAT3612HV2-T2 Integrated Circuits (ICs)

Voltage - Output:	7V
Base Part Number:	CAT3612
Supplier Device Package:	12-TDFN (3x3)
Package / Case:	12-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Camera Flash
Dimming:	Multi-Step
Frequency:	1MHz
Current - Output / Channel:	150mA (Flash)
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	3V
Number of Outputs:	2
Internal Switch(s):	Yes
Topology:	Switched Capacitor (Charge Pump)
Type:	DC DC Regulator
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The CAT3612HV2-T2 is an integrated LED driver that is capable of driving up to 8 LED strings with a maximum current of 5A per LED string. The device has a number of features designed to enable efficient LED driving and thermal performance. The device is targeted for a variety of LED lighting applications such as outdoor lighting, industrial lighting and automotive lighting.

Features

The device includes a number of features that are designed to enable efficient LED driving and thermal performance. These features include:

• Over-temperature protection which reduces power consumption and helps improve lifetime of the LEDs when used in high temperature environments.
• High frequency constant current regulation to reduce ripple current in the LED string and to minimize EMI.
• Integrated power supply and dimming controls including a step up DC/DC converter with up to 3V output voltage, a voltage regulator, as well as a number of dimming/fading modes including PWM, analog voltage and digital inputs.
• Thermal compensation which allows for current reduction at increasing temperature to ensure reliable LED operation.
• Robust protection features that ensure safe LED operation and longevity.

Application Field

The CAT3612HV2-T2 is a versatile LED driver suitable for a variety of LED lighting applications such as outdoor lighting, industrial lighting, and automotive lighting. Its features make it useful in applications where efficient LED driving and thermal performance are important such as in high temperature environments.

Working Principle

The CAT3612HV2-T2 is a step-up, buck-boost LED driver that works by taking in a DC input voltage, boosting it to a higher voltage, and then regulating the output current to the LED string. The device features constant current regulation with a PWM dimming capability. The device also has an over-temperature protection feature that reduces the output current as the temperature increases. This helps to ensure the long term reliability of the LED string.

Conclusion

The CAT3612HV2-T2 is an integrated LED driver suitable for a variety of LED lighting applications. Its features, such as over-temperature protection, high frequency constant current regulation, and integrated power supply and dimming controls, enable efficient LED driving and thermal performance. The device works by taking in a DC input and boosting it to a higher voltage, and then regulating the output current to the LED string. The device also has an over-temperature protection feature that reduces the output current as the temperature increases.

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