TPS61182RTET

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TPS61182RTET Introduction

TPS61182RTET is a high-efficiency, step-up boost LED driver IC that supports constant-current mode with wide-input voltage range and adjustable output current. It has a wide input voltage range, from 3.2 V to 18 V, and adjustable output current from 6 to 28 mA. It is suitable for driving high-current LEDs with low power dissipation and wide input voltage range.

TPS61182RTET Application Field

TPS61182RTET can be used in various applications, such as automotive, industrial equipment, consumer, and general lighting. It is also suitable for driving high-current LEDs with low power dissipation and wide input voltage range. This IC is ideal for LED solutions, such as LED lighting, LED backlighting and LED automotive lighting.

TPS61182RTET Working Principle

The TPS61182RTET is a step-up LED driver working in constant-current mode. It consists of a power switch, voltage reference, and error amplifier. The power switch is used to generate and regulate a current for driving LEDs, based on the constant-current reference from the voltage reference. The output-voltage error and current-regulating feedback from the load is amplified by the error amplifier to control the pulse-width modulated power switch. The PWM switching frequency is set at around 400 kHz. The TPS61182RTET can be used to drive any LED configuration from a wide-range input voltage, from 3.2 V to 18 V. The LED drive current accuracy is typically ±3% with output current programmed via external resistor.

Conclusion

The TPS61182RTET is a high-efficiency, step-up boost LED driver IC that supports constant-current mode with wide-input voltage range and adjustable output current. It is suitable for driving high-current LEDs having low power dissipation and wide input voltage range, making it ideal for LED solutions, such as LED lighting, LED backlighting and LED automotive lighting. Its working principle involves using a power switch, voltage reference, and error amplifier to generate and regulate a current for driving LEDs based on the constant-current reference from the voltage reference, controlled by a PWM switching frequency of around 400 kHz. The TPS61182RTET can be used in various applications and its LED drive current accuracy of ±3% is programmed via external resistor.

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