LQH31MN101K01L - Brand New Murata Electronics IC Chips
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Description
The LQH31MN101K01L is a step-up DC/DC converter designed specifically for driving white LEDs with a constant current. It is capable of driving two, three, or four LEDs in series from a Li-ion cell. By connecting the LEDs in series, it ensures identical LED currents, resulting in uniform brightness and eliminating the need for ballast resistors. The device operates at a switching frequency of 1.2 MHz, enabling the use of small external components. It requires a minimal 0.22μF output capacitor, saving space and cost compared to other solutions. With a low 95mV feedback voltage, it minimizes power loss in the current setting resistor, resulting in better efficiency.
Specifications and features
- Inherently matched LED current
- High efficiency: 84% typical
- Can drive up to four LEDs from a 2.8V supply
- Can drive up to six LEDs from a 5V supply
- Rugged bipolar switch with a voltage rating of 36V
- Fast switching frequency of 1.2MHz
- Uses tiny 1 mm tall inductors
- Requires only 0.22μF output capacitor
- Low-profile TSOT package
Application Scenarios
The LQH31MN101K01L is ideal for applications that require driving white LEDs with a constant current. It can be used in various portable devices powered by Li-ion batteries, such as smartphones, tablets, and portable lighting solutions. The device's high efficiency and small form factor make it suitable for space-constrained applications.
Comparison
Advantages- Inherently matched LED current ensures uniform brightness
- High efficiency results in better energy utilization
- Small form factor saves space
- Low power loss in the current setting resistor improves overall efficiency
DisadvantagesNo known disadvantages have been identified for the LQH31MN101K01L at this time.
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
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Popular parts of the same kind
- Datasheet: Download LQH31MN101K01L
- Chipdatas Part: CD94-LQH31MN101K01L
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/13 16:16 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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