Key Summary: The MP5990, introduced by MPS (CoreSource Systems), is the industry’s first fully integrated 16V, 50A hot-swap protection device with a PMBus interface. It integrates a hot-swap controller, a 1 mΩ RDS(ON) power MOSFET, a current mirror, and an on-chip temperature sensor within a 5 mm × 7 mm LGA package, while providing full digital telemetry capabilities for VIN, IIN, VOUT, IOUT, PIN, and POUT. Shenzhen Mingjiada Electronics Co., Ltd. (Mingjiada) has long supplied genuine, in-stock MP5990GMA series products and offers high-price buyback services for idle MP5990 inventory from manufacturers and end customers, providing one-stop inventory monetization services including buyback, consignment, and consignment sales.
I. What Is the MP5990: Condensing a “Hot-Swap Protection Cabinet” into a Single Chip
Traditional high-current hot-swap protection solutions typically require a hot-swap controller, one (or more) external power MOSFETs, a precision current-sensing resistor, and several temperature sensors. This results in a dispersed BOM, a large layout footprint, and parasitic parameters that are difficult to control. The design logic of the MP5990 systematically consolidates this architecture.
The MP5990 integrates a hot-swap controller and an Intelli-Fuse slave; in standalone mode, it functions as a complete hot-swap protection solution. When connected in parallel with multi-phase MP5991 devices, the MP5990 acts as the hot-swap master controller, extending protection capabilities to output current scenarios exceeding 50A. This “master + slave expansion” architecture enables a single device to provide both single-channel 50A board-level protection and multi-phase, parallel 100A-class system-level protection.
At the physical level, the MP5990 directly integrates a high-side power MOSFET with 1 mΩ RDS(ON) onto the chip and incorporates a current mirror to monitor IOUT and the Intelli-Fuse junction temperature, thereby eliminating the need for external current-sensing power resistors, external power MOSFETs, and discrete temperature-sensing devices. For a high-density server motherboard or accelerator card, this level of integration not only streamlines the BOM but also simultaneously reduces thermal loop area, parasitic inductance, and layout complexity.
II. Key Specifications and Features at a Glance
The MP5990’s core parameters cover the mainstream requirements for 12V-class high-current hot-swap protection:
Operating Input Voltage (VIN): 4V – 16V
Maximum Continuous Output Current (IOUT): 50 A (at room temperature); 60 A (under airflow conditions)
Integrated MOSFET RDS(ON): 1 mΩ
Digital Interface: PMBus / I2C 1.3 compatible
IMON Reporting Accuracy: ±1%
Telemetry Parameters: VIN, IIN, EIN, VOUT, IOUT, PIN, POUT
Protection Features: VIN OVP, OCP, SCP, OTP; MOSFET Gate/Source/Drain Short-Circuit Detection
Fault Storage: Built-in NVM, automatic fault logging (“black box”), configurable storage
Status Indicators: GOK, PG, UVW, D_OC, FLT_TYPE
Package: LGA-45 (5 mm × 7 mm)
Operating Junction Temperature (TJ): -40°C to 125°C
Regarding protection response strategies, the MP5990’s OVP, SCP, OCP, and OTP can all be configured for no-action, latch, retry, or hiccup modes, allowing system designers to make flexible trade-offs based on the end product’s reliability grade and safety policies. The built-in non-volatile memory (NVM) is used not only to store custom configurations but also supports automatic logging of fault conditions, providing data traceability for in-the-field failure analysis—a capability that typically requires an additional “black box” chip.
The addition of the PMBus interface transforms the MP5990 from “passive protection” to “observable protection.” Through the internal ADC, the system can read input voltage, input current, input energy, output voltage, output current, input power, and output power in real time, and remotely detect fault conditions. In data center and server environments, telemetry data at this level of granularity serves as the foundation for capacity planning, energy efficiency optimization, and predictive maintenance.
III. Typical Application Scenarios: The Foundation for “Live-Line Operations” in Servers, Data Centers, and 5G Infrastructure
The MP5990 is officially positioned for core applications including servers, PCIe cards, 5G telecommunications and networking equipment, as well as hot-swap protection scenarios in data centers.
In servers and data centers, hot-swap operations (online capacity expansion, daughter card repair/replacement) must be completed while the system remains operational, without causing unacceptable voltage drops or surge impacts to the live backplane power supply. The MP5990 uses configurable current-limiting thresholds and soft-start ramp control to regulate the gate voltage of its internal MOSFETs, thereby limiting inrush current during insertion, suppressing backplane voltage drops, and enabling the safe execution of online expansion and daughter card replacement. When a single 50A device (60A with airflow) is insufficient to meet load requirements, the MP5990 can function as a master controller in conjunction with the multiphase MP5991 to extend protection coverage to output currents exceeding 50A.
Furthermore, the MP5990’s PMBus telemetry capability makes it equally valuable in 5G telecommunications and connected devices: since base stations and network equipment are often located in areas where frequent on-site maintenance is difficult, remotely reading voltage, current, power, and temperature data via a digital interface allows operations and maintenance teams to identify abnormal trends before failures occur, thereby reducing unplanned downtime.
IV. Mingjiada: Dual Channels for MP5990 Spot Supply and High-Value Buyback
4.1 Spot Supply: Brand-new, factory-sealed MP5990GMA, supporting bulk purchases
Shenzhen Mingjiada Electronics Co., Ltd. has long supplied the full range of MPS products. The MP5990 is available as brand-new, factory-sealed stock and supports bulk purchases, meeting the needs of various stages—from R&D and pilot production to small-batch validation and mass production replenishment. Available models include the MP5990GMA-0000-Z, MP5990GMA-0000-P, and custom suffix (xxxx) series; packaging types (Z/P) can be confirmed based on procurement requirements. For customers requiring MP5990 components for server board design iterations, repair spare parts for hot-swap protection modules, or urgent restocking due to material shortages, Mingjiada offers rapid quoting and shipping responses.
Contact Information: Phone 86-755-83294757 / 13410018555; Email sales@hkmjd.com; Official Website: www.integrated-ic.com.
4.2 High-Priced Buyback: Bringing MP5990 Obsolete Inventory Back into Circulation
As a highly integrated, high-unit-price hot-swap protection device, the MP5990 tends to accumulate in factory warehouses, distributor inventories, and repair channels—in the form of full reels, loose parts, or salvaged components—following project changes, design revisions, excess procurement, or product line upgrades. Mingjiada purchases the full range of MPS chips from manufacturers, distributors, EMS factories, and end-user brands, and the MP5990 falls within its procurement scope.
Mingjiada’s inventory disposal solutions extend beyond simple buyouts to include flexible models such as consignment, agency sales, and full-warehouse liquidation. These options can be tailored to the condition of the goods (brand-new and factory-sealed, full reels, loose parts, mixed lots) and the customer’s preferences regarding payment speed and returns. End-user demand for the MP5990 is concentrated in the server, data center, and telecommunications equipment sectors. Compliant circulation through Mingjiada’s channel network better reflects the chip’s true market value than treating it as “scrap.”
V. Frequently Asked Questions (FAQ)
Q1: What is the relationship between the MP5990 and MP5991? Which one should I choose?
The MP5990 is a fully integrated hot-swappable protection device that contains a controller and a 1 mΩ MOSFET internally and can operate independently; the MP5991 is an integrated single-chip controller and switch, typically used as a slave device in conjunction with the MP5990 to extend the protection current to 50 A or higher. For single-channel board-level protection up to 50A (60A with airflow), the MP5990 standalone solution should be evaluated first; for system-level protection exceeding 50A, a master-slave architecture using the MP5990 combined with multiple MP5991 devices is required.
Q2: What data can be read via the MP5990’s PMBus interface?
VIN, IIN, EIN, VOUT, IOUT, PIN, and POUT can be telemetried, and fault conditions can be monitored and reported via PMBus; IMON reporting accuracy is ±1%. Fault conditions are also automatically logged to the built-in NVM for easy post-event traceability.
Q3: Are the MP5990 chips supplied by Mingjiada genuine original products? Which models are supported?
Mingjiada adheres to a policy of supplying only genuine original products. Our in-stock MP5990 inventory includes the MP5990GMA-0000-Z / -P series and models with custom suffixes. Specific batch numbers, packaging formats, and quality inspection information can be confirmed with our sales team when requesting a quote.
Q4: I have a batch of obsolete MP5990 inventory. Does Mingjiada purchase these?
Yes, we do. Mingjiada provides MPS chip recycling services to customers nationwide and overseas, and the MP5990 is included in our recycling categories. Whether you have full, original-packaged reels or loose components, please contact the Mingjiada sales team for device identification and a quote. You may choose from disposal options such as outright purchase, consignment, or agency sales.
담당자: Mr. Sales Manager
전화 번호: 86-13410018555
팩스: 86-0755-83957753
Korean
