LTC4226CMS-1 16-Lead MSOP Integrated Circuit Chip Wide Operating Range Dual Hot Swap Controller
The LTC4226CMS-1 is a dual Hot Swap controller that lets two power paths be inserted into and removed from a live backplane or a powered connector safely. Each channel drives an external N-channel pass MOSFET, and the supply voltage is ramped up at an adjustable rate so the inrush current stays under control.
The device operates from 4.5 V to 44 V, which covers 5 V, 12 V and 24 V backplanes as well as telecom and industrial rails. On-chip undervoltage lockout holds the channels off until the supply passes its rising threshold, with 200 mV of hysteresis to ignore rail noise.
Three selectable ratios of current limit to circuit breaker threshold, set by the three-state CLS pin, accommodate noisy loads and momentary high peak currents without interruption. The circuit breaker threshold is 50 mV typical, and a dual-rate fault timer protects the MOSFET during extended output overcurrent events.
FAULT outputs report the circuit breaker status of each channel. The LTC4226-1 version latches off after an overcurrent fault and stays off until it is reset, while the LTC4226-2 version retries automatically after a 0.5 s delay. Two channels can also be combined as parallel power paths for higher current, or configured as a bidirectional current limiter and circuit breaker.
The LTC4226CMS-1 is the commercial grade part in the 16-lead MSOP package, specified from 0 to 70 degrees C. It is RoHS compliant and lead free, and every order ships with full traceability. Samples and volume pricing are available on request.
Company Profile
Shenzhen Mingjiada Electronics Co., Ltd. is an independent distributor of electronic components from established manufacturers. Founded in Shenzhen in 1996, Mingjiada has established branches in Hong Kong, Japan, Russia, and Taiwan.
Certified under ISO9001:2014 for quality management systems and ISO14001:2014 for environmental management systems. With an experienced team in sales, R&D and management, we specialize in distributing products from more than 500 established suppliers.
Adhering to the principle of "maximizing benefits for customers," we offer comprehensive product ranges and provide high-quality, responsive service through professional logistics and customer service teams.
Frequently Asked Questions
Are your LTC4226CMS-1 products new stock?
Yes. Every part we ship is new stock sourced through established supply channels, with full traceability.
Which package does the LTC4226CMS-1 use?
It is supplied in the 16-lead MSOP package, the commercial grade version specified from 0 to 70 degrees C.
What supply voltage range does the LTC4226CMS-1 support?
It operates from 4.5 V to 44 V, with an absolute maximum VCC rating of 55 V.
How does the LTC4226CMS-1 limit inrush current?
Each channel drives an external N-channel MOSFET through a high-side gate drive, and the gate ramps at an adjustable rate so the supply rises in a controlled manner.
What happens after an overcurrent fault?
The -1 version latches both the channel and the FAULT output off after a fault, and the channel stays off until it is reset. The -2 version retries automatically after a 0.5 s delay.
Can the two channels be used together?
Yes. Two channels may be configured as parallel power paths for high current applications, and the device can also work as a bidirectional current limiter and circuit breaker.
How do you ship my order? Is it safe?
We use express carriers including DHL, FedEx, UPS, TNT, and EMS. We can also use your preferred forwarder. Products are carefully packaged to ensure safety, and we take responsibility for any damage to your order.
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