MAX15059
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MAX15059

76V, 300mW Boost Converter and Current Monitor for APD Bias Applications

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High-Voltage Boost Converter and Current Monitor Reduce Cost and Board Space for Avalanche Photo-Diode Applications

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Part Models 8
1ku List Price Starting From $2.46
Features
  • Input Voltage Range: +2.8V to +5.5V
  • Wide Output-Voltage Range from (VIN + 5V) to 76V
  • Internal 1Ω (typ) 80V MOSFET
  • Boost Converter Output Power: 300mW
  • 200mW Version Available for Smaller Inductor
  • Accurate ±5% (1:1 and 5:1) High-Side Current Monitor
  • Resistor-Adjustable Ultra-Fast APD Current Limit (1µs Response Time)
  • Open-Drain Current-Limit Indicator Flag
  • 400kHz Fixed-Switching Frequency
  • Constant PWM Frequency Provides Easy Filtering in Low-Noise Applications
  • Internal Soft-Start
  • 2µA (max) Shutdown Current
  • -40°C to +125°C Temperature Range
  • Small, Thermally Enhanced, 3mm x 3mm, Lead-Free, 16-Pin TQFN-EP Package
Additional Details
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The MAX15059 constant-frequency pulse-width modulating (PWM) step-up DC-DC converter features an internal switch and a high-side current monitor with high-speed adjustable current limiting. This device is capable of generating output voltages up to 76V (300mW for the MAX15059A and 200mW for the MAX15059B) and provides current monitoring up to 4mA. The MAX15059 operates from 2.8V to 5.5V.

The constant-frequency (400kHz) current-mode PWM architecture provides low-noise-output voltage that is easy to filter. A high-voltage internal power MOSFET allows this device to boost output voltages up to 76V. Internal soft-start circuitry limits the input current when the boost converter starts. The MAX15059 features a shutdown mode to save power.

The MAX15059 includes a current monitor with more than three decades of dynamic range and monitors current ranging from 500nA to 4mA with high accuracy. Resistor-adjustable current limiting protects the APD from optical power transients. A clamp diode protects the monitor's output from overvoltage conditions. Other protection features include cycle-by-cycle current limiting of the boost converter switch, undervoltage lockout (UVLO), and thermal shutdown if the die temperature reaches +125°C.

The MAX15059 is available in a thermally enhanced, lead-free, 16-pin TQFN-EP package and operates over the -40°C to +125°C temperature range.

Applications

  • Avalanche Photodiode Biasing and Monitoring
  • FBON Modules
  • GPON Modules
  • Low-Noise Varactor Diode Bias Supply
  • PIN Diode Bias Supply
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file View Data Sheet (Rev.4)
Documentation View All Documentation
Part Models 8
1ku List Price Starting From $2.46
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MAX15059

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UPDATED 01/06/2021
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MAX15059: 76V, 300mW Boost Converter and Current Monitor for APD Bias Applications Data Sheet (Rev.4)

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UPDATED 06/01/2011
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MAX15059: 76V、300mW boost转换器和电流监测器，用于APD偏置 Data Sheet (Rev.3)

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UPDATED 01/12/2023
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UPDATED 01/31/2001
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Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

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Jun 20, 2016

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Software & Part Ecosystem

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NOT RECOMMENDED FOR NEW DESIGNS

80V, 300mW Boost Converter and Current Monitor for APD Bias Applications

Evaluation Kits 1

MAX15059EVKIT

Evaluation Kit for the MAX15059A and MAX15059B

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MAX15059EVKIT

Evaluation Kit for the MAX15059A and MAX15059B

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MAX15059EVKIT
Evaluation Kit for the MAX15059A and MAX15059B

Features and Benefits

  • 2.8V to 5.5V Supply Voltage Range
  • 70V Output Voltage (Approximate)
  • 0 to 4mA Output Current
  • Demonstrates APD Fast Current Limit
  • Demonstrates Undervoltage Lockout
  • Demonstrates Thermal-Shutdown Feature
  • MOUT Output Overvoltage Protection Through Clamping Circuit
  • Fully Assembled and Tested
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Product Detail

The MAX15059 evaluation kit (EV kit) demonstrates the MAX15059 APD biasing pulse-width modulation (PWM) step-up DC-DC converter with an internal power switch, current monitor, and adjustable current limiting. The step-up converter switches at 400kHz. The EV kit operates from a DC supply voltage of 2.8V to 5.5V and is configured to deliver approximately 70V, and 0 to 4mA of current at the output. The output voltage can be configured from VIN + 5V to 76V by replacing a resistor or adjusting the CNTRL voltage. The EV kit demonstrates the IC's APD fast current-limit, undervoltage-lockout (UVLO), and thermal-shutdown features.

The EV kit also features an APD input load-simulator circuit for current monitoring and step-response measurements.

The EV kit comes with the MAX15059AETE+ installed, but can also be used to evaluate the MAX15059BETE+.

Warning: Voltages exceeding 42V may exist on the VOUT, APD, MOUT, and PGND PCB pads.

Applications

  • Avalanche Photodiode Biasing and Monitoring
  • FBON Modules
  • GPON Modules
  • Low-Noise Varactor Diode Bias Supply
  • PIN Diode Bias Supply

Evaluation Kits1

MAX15059EVKIT

Evaluation Kit for the MAX15059A and MAX15059B

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