MAX15059
76V, 300mW Boost Converter and Current Monitor for APD Bias Applications
High-Voltage Boost Converter and Current Monitor Reduce Cost and Board Space for Avalanche Photo-Diode Applications
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Overview
Features and Benefits
- 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
Product Details
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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Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
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MAX15059 Companion Parts
Design Resources
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.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX15059AATE+ | Material Declaration | Reliability Data | Thin Quad Flatpack, No Leads | |
| MAX15059AATE+T | Material Declaration | Reliability Data | Thin Quad Flatpack, No Leads | |
| MAX15059AETE+ | Material Declaration | Reliability Data | Thin Quad Flatpack, No Leads | |
| MAX15059AETE+T | Material Declaration | Reliability Data | Thin Quad Flatpack, No Leads | |
| MAX15059BATE+ | Material Declaration | Reliability Data | Thin Quad Flatpack, No Leads | |
| MAX15059BATE+T | Material Declaration | Reliability Data | Thin Quad Flatpack, No Leads | |
| MAX15059BETE+ | Material Declaration | Reliability Data | Thin Quad Flatpack, No Leads | |
| MAX15059BETE+T | Material Declaration | Reliability Data | Thin Quad Flatpack, No Leads | |
| Wafer Fabrication Data | MAX15059 Reliability Data |
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.