MAX17595
Peak-Current-Mode Controllers for Flyback and Boost Regulators
Enable Compact, Cost-Effective, and Highly Flexible Isolated/Nonisolated Power Supplies
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Overview
Features and Benefits
- Programmable Switching Frequency Allows Optimization of the Magnetic and Filter Components, Resulting in Compact, Cost-Effective, Efficient Isolated/Non-Isolated Power Supplies
- 100kHz to 1MHz Programmable Switching Frequency with Optional Synchronization
- Peak Current Mode Control Provides Excellent Transient Response
- Offline (Universal Input AC) and Telecom (36V to 72V) Flyback Controller—MAX17595
- DC-DC (4.5V to 36V) Flyback Controller—MAX17596
- Nonsynchronous (4.5V to 36V) Boost PWM Controller—MAX17597
- 3mm x 3mm TQFN Package
- Programmable Frequency Dithering Enables Low-EMI Spread-Spectrum Operation
- Integrated Protection Features Enhance System Reliability
- Adjustable Current Limit with External Current-Sense Resistor
- Fast Cycle-By-Cycle Peak Current Limiting
- Hiccup-Mode Short-Circuit Protection
- Overtemperature Protection
- Programmable Soft-Start and Slope Compensation
- Input Overvoltage Protection
Product Details
The MAX17595/MAX17596/MAX17597 is a family of peak-current-mode controllers for design of wide input-voltage flyback and boost regulators. The MAX17595 offers optimized input thresholds for universal input AC-DC converters and telecom DC-DC (36V to 72V input range) power supplies. The MAX17596/MAX17597 offer input thresholds suitable for low-voltage DC-DC applications (4.5V to 36V). The MAX17597 implements a boost converter. All three controllers contain a built-in gate driver for external n-channel MOSFETs.
The MAX17595/MAX17596/MAX17597 house an internal error amplifier with 1% accurate reference, eliminating the need for an external reference. The switching frequency is programmable from 100kHz to 1MHz with an accuracy of 8%, allowing optimization of magnetic and filter components, resulting in compact and cost-effective power conversion. For EMI-sensitive applications, the MAX17595/MAX17596/MAX17597 family incorporates a programmable frequency dithering scheme, enabling low-EMI spread-spectrum operation.
Users can start the power supply precisely at the desired input voltage, implement input overvoltage protection, and program soft-start time. A programmable slope compensation scheme is provided to ensuree stability of the peak-current-mode control scheme.
Hiccup-mode overcurrent protection and thermal shutdown are provided to minimize dissipation in overcurrent and overtemperature fault conditions.
Applications
- Battery-Powered Applications
- Industrial and Telecom Applications
- Universal Input Offline AC-DC Power Supplies
- Wide-Range DC-Input Flyback/Boost Battery Chargers
Product Categories
Product Lifecycle
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 (4)
Documentation & Resources
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MAX17595 Reliability Data1/12/2023PDF42K
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UG-5861: EE-SIM Design and Simulation Environment User Guide5/5/2014PDF3M
Tools & Simulations
SIMPLIS Models
Reference Designs (9)
Design Resources
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