LED Driver Solutions

Diodes introduces a family of boost and buck LED drivers

To ensure the total cost of ownership of LED lighting is comparable with or lower than traditional lighting, highly efficient and cost effective processes for driving LEDs are vital. That is why Diodes, Inc. has developed a range of dedicated LED driver ICs to tackle a wide range of existing and emerging applications including architectural lighting, automotive lighting, safety and security lights, and portable lighting. Zetex LED driver solutions from Diodes, Inc. are not only characterized by high efficiency and cost effectiveness, but by their incredible versatility.

Image of Diodes Incorporated's AP880X SeriesAP880X Series

AP880X step-down DC/DC converters require the support of only four components and operate at switching frequencies up to 600 kHz, enabling the use of smaller, lower cost inductors and capacitors. Designed to drive series-connected LEDs with a constant current, the AP880X family supports up to 13 LEDs from voltage sources between 8 V and 48 V. The drivers are suitable for a broad range of high-brightness, general illumination applications including signage, architectural, emergency lighting, and MR16 lamp replacement. An integrated soft-start function reduces LED stress and extends lifetime.

Features

  • High efficiency
  • High switching frequency
  • PWM/DC input for dimming control
  • Built-in output open-circuit protection

Applications

  • Commercial and industrial lighting
  • Small LCD panel backlighting
  • Architecture detail lighting
  • Appliances interior lighting

Specifications

  • AP8800 Series
    • Max. output voltage: 28 V
    • Quiescent current: 30 µA
    • Max. switch current: 600 mA
  • AP8801 Series
    • Max. output voltage: 48 V
    • Quiescent current: 120 µA
    • Max. switch current: 500 mA
  • AP8802 Series
    • Max. output voltage: 48 V
    • Quiescent current: 120 µA
    • Max. switch current: 500 mA

Image of Diodes Incorporated's ZXLD132X SeriesZXLD132X Series

The ZXLD132X series are inductive DC/DC converters with an internal switch that are designed for driving single or multiple LEDs in series. The devices include the DC/DC converter, a high-side current monitor, and an NPN switching transistor to provide an integrated solution offering small PCB size, competitive cost and performance, high power efficiency of DC/DC conversion, and maximum LED brightness and reliability. More importantly, they retain design flexibility to add customer specific features. External resistors set nominal average LED current and coil peak current independently.

Features

  • LED current adjustable from 100% down to 2%
  • High output current stability over input voltage and temperature
  • 12 µA typical standby current
  • Adjustable soft-start
  • Power 'OK' flag output
  • Capable of driving multiple LEDs in series

Applications

  • Low voltage halogen lamp replacement LEDs
  • High power LED flashlights
  • LED back-up lighting
  • General LED lighting
  • Automotive lighting
  • Emergency lighting

Specifications

  • ZXLD1320 Series
    • Max. output voltage: 18 V
    • Quiescent current: 12 µA
    • Max. switch current: 2000 mA
  • ZXLD1321 Series
    • Max. output voltage: 18 V
    • Quiescent current: 12 µA
    • Max. switch current: 2000 mA
  • ZXLD1322 Series
    • Max. output voltage: 18 V
    • Quiescent current: 20 µA
    • Max. switch current: 2000 mA

Image of Diodes Incorporated's ZXLD136X SeriesZXLD135X Series

The ZXLD135X is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device provides an externally adjustable output current of up to 350 mA or 550 mA (ZXLD1356). Depending upon supply voltage and external components, this can provide up to 8 W or 30 W (ZXLD1356) of output power. The ZXLD135X includes the output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. The ADJ pin will accept either a DC voltage or a PWM waveform.

Features

  • Simple low parts count
  • Single pin on/off and brightness control using DC voltage or PWM
  • Internal PWM filter
  • High efficiency
  • Wide input voltage range
  • Inherent open-circuit LED protection

Applications

  • Low voltage halogen replacement LEDs
  • Automotive lighting
  • Low voltage industrial lighting
  • LED back-up lighting
  • Illuminated signs

Specifications

  • ZXLD1350 Series
    • Max. output voltage: 30 V
    • Quiescent current: 15 µA
    • Max. switch current: 370 mA
  • ZXLD1352 Series
    • Max. output voltage: 30 V
    • Quiescent current: 20 µA
    • Max. switch current: 370 mA
  • ZXLD1356 Series
    • Max. output voltage: 60 V
    • Quiescent current: 65 µA
    • Max. switch current: 550 mA

Image of Diodes Incorporated's ZXLD136X SeriesZXLD136X Series

The ZXLD1360 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device provides an externally adjustable output current of up to 1 A. The ZXLD136X series includes the output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. Output current can be adjusted above, or below the set value, by applying an external control signal to the 'ADJ' pin. The ADJ pin will accept either a DC voltage or a PWM waveform.

Features

  • Simple low parts count
  • Single pin on/off and brightness control using DC voltage or PWM
  • Internal PWM filter
  • High efficiency
  • Wide input voltage range
  • Inherent open-circuit LED protection

Applications

  • Low voltage halogen replacement LEDs
  • Automotive lighting
  • Low voltage industrial lighting
  • LED back-up lighting
  • Illuminated signs

Specifications

  • ZXLD1360 Series
    • Max. output voltage: 30 V
    • Quiescent current: 20 µA
    • Max. switch current: 1000 mA
  • ZXLD1362 Series
    • Max. output voltage: 60 V
    • Quiescent current: 65 µA
    • Max. switch current: 1000 mA
  • ZXLD1366 Series
    • Max. output voltage: 60 V
    • Quiescent current: 65 µA
    • Max. switch current: 1000 mA

Image of Diodes Incorporated's ZXLD38X SeriesZXLD38X Series

The ZXLD38X is a series of single or multi cell LED drivers designed for applications where step-up voltage conversion from a very low input voltage is required. The IC generates constant current pulses that are ideal for driving single or multiple LEDs over a wide range of operating voltages. These devices use a PFM control technique to drive an internal switching transistor that exhibits a low saturation resistance. This ensures high efficiency even for input voltages as low as 1 V. The IC can start up under full load and operates down to an input voltage of only 0.9 V.

Features

  • 85% efficiency
  • User adjustable output current
  • Single cell operation (0.9 V minimum)
  • Low saturation voltage switching transistor
  • SOT23-3 or TSOT23-5 package
  • Simple application circuit

Applications

  • LED flashlights and torches
  • LED backlights
  • White LED drivers
  • Gated boost supply generator (ZXLD383)
  • Garden lights (ZXLD383)

Specifications

  • ZXLD381 Series
    • Max. output voltage: VIN to 20 V
    • Quiescent current: –
    • Max. switch current: 800 mA
  • ZXLD383 Series
    • Max. output voltage: VIN to 20 V
    • Quiescent current: 3 µA
    • Max. switch current: 800 mA

Image of Diodes Incorporated's ZXSC SeriesZXSC Series

The ZXSC300 and ZXSC380 are single- or multi-cell LED drivers designed for applications where step-up voltage conversion from very low input voltages is required. These applications mainly operate from single 1.5 V or 1.2 V battery cells. The circuit generates constant current pulses that are ideal for driving single or multiple LEDs over a wide range of operating voltages.

The ZXSC310 is a single or multi-cell LED driver designed for LCD backlighting applications. The input voltage range of the device is between 0.8 V and 8 V. This means the ZXSC310 is compatible with single NiMH, NiCd, or Alkaline cells as well as multi-cell or lithium-ion batteries.

The ZXSC400 is a voltage mode boost converter. Its low feedback voltage allows the current in a chain of LEDs to be set and accurately monitored with a single resistor giving minimal losses. Its excellent load and line regulation means that for the full supply range from lithium-ion cells, the LED current will typically change by less than 1%. Using high efficiency Zetex switching transistors with ratings of 20 V and higher allows many LEDs to be chained in a series for the best LED current matching possible.

Features Applications
  • High efficiency
  • Minimum operating input voltage 0.8 V
  • Fixed or adjustable output current
  • Low saturation voltage switching transistor
  • LED flashlights and torches
  • LED backlights
  • White LED driving
  • Multiple LED driving
Specifications
  • ZXSC300 Series
    • Max. output voltage: VIN to VEXT SW
    • Quiescent current: 200 µA
    • Max. switch current: External switch
  • ZXSC310 Series
    • Max. output voltage: VIN to VEXT SW
    • Quiescent current: 200 µA
    • Max. switch current: External switch
  • ZXSC380 Series
    • Max. output voltage: VIN to 20 V
    • Quiescent current: 80 µA
    • Max. switch current: 95 mA
  • ZXSC400 Series
    • Max. output voltage: VIN to VEXT SW
    • Quiescent current: 150 µA
    • Max. switch current: External switch

AP8800 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
AP8800FNG-7 datasheet linkIC LED DRIVER RGLTR DIM 10DFNAP8800FNG-7IC LED DRIVER RGLTR DIM 10DFNDC DC RegulatorStep-Down (Buck)8502 - Immediate
12000 - Factory Stock
AP8800FNG-7 product page link
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AP8801 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
AP8801SG-13 datasheet linkIC LED DRVR RGLTR DIM 500MA 8SOPAP8801SG-13IC LED DRVR RGLTR DIM 500MA 8SOPDC DC RegulatorStep-Down (Buck)18506 - Immediate
AP8801SG-13 product page link
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AP8802 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
AP8802HSP-13 datasheet linkIC LED DRIVER RGLTR DIM 1A 8SOICAP8802HSP-13IC LED DRIVER RGLTR DIM 1A 8SOICDC DC RegulatorStep-Down (Buck)26520 - Immediate
AP8802HSP-13 product page link
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ZXLD1320 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1320DCATC datasheet linkIC LED DRIVER RGLTR DIM 14DFNZXLD1320DCATCIC LED DRIVER RGLTR DIM 14DFNDC DC RegulatorStep-Down (Buck)3000 - Immediate
ZXLD1320DCATC product page link
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ZXLD1321 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1321DCATC datasheet linkIC LED DRIVER RGLTR DIM 1A 14DFNZXLD1321DCATCIC LED DRIVER RGLTR DIM 1A 14DFNDC DC RegulatorStep-Up (Boost)0ZXLD1321DCATC product page link
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ZXLD1322 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1322DCCTC datasheet linkIC LED DRIVER RGLTR DIM 14DFNZXLD1322DCCTCIC LED DRIVER RGLTR DIM 14DFNDC DC RegulatorStep-Down (Buck), Step-Up (Boost)45000 - Factory StockZXLD1322DCCTC product page link
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ZXLD1350 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1350ET5TA datasheet linkIC LED DRIVER RGLTR DIM TSOT23-5ZXLD1350ET5TAIC LED DRIVER RGLTR DIM TSOT23-5DC DC RegulatorStep-Down (Buck)18000 - Immediate
ZXLD1350ET5TA product page link
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ZXLD1352 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1352ET5TA datasheet linkIC LED DRIVER RGLTR DIM TSOT23-5ZXLD1352ET5TAIC LED DRIVER RGLTR DIM TSOT23-5DC DC RegulatorStep-Down (Buck)9000 - Immediate
3000 - Factory Stock
ZXLD1352ET5TA product page link
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ZXLD1356 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1356ET5TA datasheet linkIC LED DRIVER RGLTR DIM TSOT23-5ZXLD1356ET5TAIC LED DRIVER RGLTR DIM TSOT23-5DC DC RegulatorStep-Down (Buck)10080 - Immediate
ZXLD1356ET5TA product page link
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ZXLD1360 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1360ET5TA datasheet linkIC LED DRIVER RGLTR DIM TSOT23-5ZXLD1360ET5TAIC LED DRIVER RGLTR DIM TSOT23-5DC DC RegulatorStep-Down (Buck)63000 - Immediate
ZXLD1360ET5TA product page link
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ZXLD1362 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1362ET5TA datasheet linkIC LED DRIVER RGLTR DIM TSOT23-5ZXLD1362ET5TAIC LED DRIVER RGLTR DIM TSOT23-5DC DC RegulatorStep-Down (Buck)16254 - Immediate
18000 - Factory Stock
ZXLD1362ET5TA product page link
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ZXLD1366 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD1366EN8TC datasheet linkIC LED DRIVER RGLTR DIM 1A 8SOICZXLD1366EN8TCIC LED DRIVER RGLTR DIM 1A 8SOICDC DC RegulatorStep-Down (Buck)11642 - Immediate
5000 - Factory Stock
ZXLD1366EN8TC product page link
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ZXLD381 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD381FHTA datasheet linkIC LED DRIVER RGLTR 320MA SOT23ZXLD381FHTAIC LED DRIVER RGLTR 320MA SOT23DC DC RegulatorStep-Up (Boost)27000 - Immediate
ZXLD381FHTA product page link
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ZXLD383 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXLD383ET5TA datasheet linkIC LED DRVR RGLTR 320MA TSOT23-5ZXLD383ET5TAIC LED DRVR RGLTR 320MA TSOT23-5DC DC RegulatorStep-Up (Boost)3000 - Immediate
72000 - Factory Stock
ZXLD383ET5TA product page link
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ZXSC300 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXSC300E5TA datasheet linkIC LED DRIVER CONTROLLER SOT23-5ZXSC300E5TAIC LED DRIVER CONTROLLER SOT23-5DC DC ControllerStep-Up (Boost)12000 - Immediate
ZXSC300E5TA product page link
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ZXSC310 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXSC310E5TA datasheet linkIC LED DRIVER CONTROLLER SOT23-5ZXSC310E5TAIC LED DRIVER CONTROLLER SOT23-5DC DC ControllerStep-Up (Boost)15000 - Immediate
ZXSC310E5TA product page link
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ZXSC380 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXSC380FHTA datasheet linkIC LED DRIVER RGLTR 80MA SOT23ZXSC380FHTAIC LED DRIVER RGLTR 80MA SOT23DC DC RegulatorStep-Up (Boost)9000 - Immediate
ZXSC380FHTA product page link
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ZXSC400 Series

ImageManufacturer Part NumberDescriptionTypeTopologyAvailable Quantity
ZXSC400E6TA datasheet linkIC LED DRIVER RGLTR 50MA SOT23-6ZXSC400E6TAIC LED DRIVER RGLTR 50MA SOT23-6DC DC RegulatorStep-Up (Boost)48000 - Factory StockZXSC400E6TA product page link
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Published: 2012-07-18