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MAXIM INTEGRATED / ANALOG DEVICES MAX5943EEEE FireWire Power Controller
The MAX5943 is a comprehensive power-management IC designed for FireWire applications, offering current limiting, power supply ORing, and hot-swap capabilities. It controls external MOSFETs to regulate input-to-load current, performs low-voltage-drop power routing, and provides overcurrent fault detection with configurable fault management modes. Featuring a wide input range of 7.5V to 37V, UL recognition, and programmable timeout settings, the MAX5943 ensures safe peripheral insertion/removal, efficient power routing, and protection against short circuits, making it essential for FireWire desktop, laptop, hub, and peripheral device applications, ensuring reliability and safety.
MAXIM INTEGRATED / ANALOG DEVICES MAX5943EEEE FireWire Power Controller Specifications:
- Supply Voltage Range: 7.5V to 37V
- Operating Temperature: -40°C to +85°C
- Package: 16-pin QSOP
- UL Recognized FireWire/IEEE 1394 Circuit
- Typical Supply Current: 13-23 mA at 12V
- Shutdown Current: Less than 10μA
- Undervoltage Lockout Threshold: 6.5V (default), programmable
- Current Limit Threshold: 40mV, 50mV, or 60mV options
- Current Limit / Circuit Breaker Timeout: 0.5ms to 12.9ms depending on model
- Reverse Current Protection: Enabled via ONQ1 pin
- Fault Detection: FAULT open-drain output, latch or autoretry modes
- Fast Response to Short Circuits: Typically within hundreds of nanoseconds
- External MOSFETs: Controlled via GATE1 and GATE2, low RDS(ON) recommended
- Power Dissipation: 667mW at Ta=+70°C, with derating above 70°C
- ESD Rating: 2000V Human Body Model
- Designed for Hot Swap, Power Distribution, and Surge Protection
Buy the Maxim Series FireWire Current Limiter: MAX5943EEE
Enhance your FireWire system with the MAX5943EEE, a power management IC offering robust current limiting, UL-certified protection, and efficient power supply ORing. Designed for desktop, laptop, hub, and peripheral applications, it ensures safe insertion and removal of devices, prevents short circuits, and manages high-current transients with programmable timeouts. Easy to implement with external MOSFET control, this device guarantees long-lasting durability and system safety. Purchase online now to equip your system with advanced power protection and reliable performance.
Get Maxim MAX5943EEE today—built for reliable power management and safe hot swapping in FireWire systems.
Frequently Asked Questions
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You can download the MAX5943EEEE datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.
Who is the manufacturer of MAX5943EEEE?
MAXIM INTEGRATED / ANALOG DEVICES