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ZLSL7025 Boost LED Driver
 The ZSLS7025 is a constant current boost converter designed for driving high-brightness LEDs. It is optimal for driving multiple white LEDs connected in series so that the LED current is uniform for better brightness and color control. The wide input range and high output current enables diverse industrial, after-market automotive, and consumer lighting applications.
The ZSLS7025 output current is adjustable via an external current sense resistor and can deliver stable constant output current from a few milliamps up to 2A or higher.
The ZSLS7025 drives a constant current into the load. The control loop features a pulse frequency modulated architecture that is inherently stable and does not need loop compensation. PWM or linear voltage dimming is supported, which allows flexible control of the LED luminance.
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ZLED7015 Boost Converter LED Driver
with Internal Switch
 The ZLED7015 is a constant current boost converter with an internal high power 35V switch. It is optimal for driving multiple white LEDs connected in series so that the LED current is uniform for better brightness and color control. It can also drive devices that require a constant voltage and is capable of operating efficiently with voltage supplies ranging from 6VDC to 30VDC. It is ideal for diverse lighting applications requiring low supply voltages such as SELV applications. Typically, smaller, less expensive external components can be used since the ZLED7015 switches at 1.0 MHz (typical).
The ZLED output current is adjustable via an external current sense resistor Rs connected from the FB pin to ground. The ZLED improves efficiency and minimizes power losses in the current setting resistor Rs by use of an internal 0.3V feedback reference voltage.
Dimming can be controlled using a pulse-width modulation (PWM) waveform or a DC voltage applied to the FB pin.
The ZLED7015 provides a "soft-start" function to prevent excessive in-rush current on start-up and ensures a controlled rise of the output voltage.
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The TSYS01 is a versatile, new technology temperature sensor chip. The TSYS01 provides factory-calibrated temperature information. It includes a temperature sensing chip and a 24-bit ADC. Highly accurate temperature information (±0.1°C) and high resolution results from the 24 bit ADC and factory calibration.
