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Boost Drivers for White LEDs
Boost Drivers for White LEDs
Arcotek Elektronik GmbH offers products manufactured by PREMA Semiconductor, an independent wafer and IC supplier. The company offers a range of 0.9 V Boost Drivers for White LEDs: PR4401, PR4402 and PR4406. PREMA Semiconductor GmbH was founded in 1970, and the Semiconductor Division since 1977. It has more than 30 years of experience in IC design and wafer processing, with innovative bipolar and BiCMOS processes. Located in Mainz/Germany, only 30 minutes away from Frankfurt airport, it’s activities include: ASIC design, production and test; foundry service; and standard ICs, ASSPs.
Product highlights:
- Small SOT23-3L package, tiny circuit
- Drives white, blue or UV LEDs from a single battery cell/min 0.9 V
- Constant output current
- Simple and easy to use.
- Miniature pocket torches
- Indicator lights for low-voltage circuits
- LCD backlighting for watches and clocks
- Toys, model making
- Medical lights, etc.
- Boost driver with stabilised LED current over wide input voltage range
- LED current up to 20 mA for PR4401, up to 40 mA for PR4402 and up to 50 mA or 80 mA for PR4406 (actual current depends on circuit and components used)
- Minimum input voltage 0.9 V - allows use of single alkaline or NiMH cells with all LED types
- PR4401, PR4402 for up to 1.9 V, PR4406 up to 5 V supply
- SOT-23 package, lowest total cost
- Requires only a small inductor as external
- Component at low LED currents
- Simple circuit for high LED currents
- High efficiency of 80% and more
- Battery deep discharge protection
- Compatible with all LED types
- LED current set by inductance.
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