Product overview
Description
The STLA02H is a boost converter which operates from 4.0 V to 18 V, provides an output voltage as high as 34 V and can drive up to 10 white LEDs connected in series. The total output current capability is 20 mA with an output voltage of 32 V. The total output power capability is up to 650 mW. The regulation is carried out by the internal error amplifier which works with the feedback voltage from the sensing resistor connected in high-side sensing configuration. The device can be turned on/off by the logic signal connected to the EN pin which is also dedicated to PWM dimming of the output current. Current mode control of the regulation allows a fast response to change the enable pin voltage level.
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All features
- Boost DC-DC converter
- Drives up to 10 LEDs with a total current up to 20 mA
- Output power capability up to 650 mW
- Input voltage range from 4.0 V to 18 V
- Output current control
- 2.3 MHz switching frequency
- PWM input for the output current dimming with 300:1 dimming range
- Overvoltage protection
- Chip overtemperature detection and protection
- Soft-start function
- Packaged in DFN6 2x2 mm
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The STMicroelectronics team - STLA02H
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