MP5520

MP5520

2.7V to 16V, Power Loss Protection Management IC with Dual E-Fuses and Power-Sharing Function

MPL

Datasheet

Description

MPL

Optimized Performance with MPS Inductor

The MP5520 is a high-efficiency, monolithic converter designed for power management in enterprise and datacenter solid-state drives (SSDs). The device integrates dual input current-limit switches (e-fuses), a bidirectional buck-boost converter, and a bidirectional power-sharing converter.

The low on resistance (R_DS(ON)) e-fuses are designed for an input voltage (V_IN) up to 16V and 6V, respectively. Both e-fuses provide input current limiting and can block reverse currents. Soft start (SS) prevents inrush current during system start-up.

The bidirectional buck-boost converter provides energy management. Backup energy is stored in high-voltage capacitors. MPS’s patented energy storage and release management control circuit minimizes the storage capacitor (C_STRG) requirement. The converter pumps V_IN to a higher storage voltage (V_STRG), and if there is a V_IN outage, the converter releases the energy to the system across a hold-up time. The configurable charging current ramps up V_STRG in a controlled manner. Paired with the e-fuses’ reverse-current blocking, the backup energy is fully utilized to support the load during V_IN loss.

Constant-on-time (COT) control is used when the bidirectional converter releases the energy from C_STRG, which minimizes the voltage drop during the transition from charge mode to backup mode. The total solution size is minimized since this converter only requires one inductor.

The bidirectional power-sharing converter provides power sharing between the e-fuses. It can be configured to either boost power-sharing mode or buck power-sharing mode. The internal ADC accurately monitors V_INx, the input current (I_INx), and input power (P_INx). To guarantee long-term reliability, the MP5520 offers C_STRG health monitoring.

The MP5520 requires a minimal number of readily available, standard external components, and is available in a QFN-37 (5mmx6mm) package.

Features & Benefits

Input Current Limit Switches (E-Fuses):
- Wide Input Voltage (V_INx): 2.7V to 16V V_IN1 (E-Fuse 1) and 2.7V to 6V V_IN2 (E-Fuse 2)
- Low On Resistance (R_DS(ON)): 20mΩ E-Fuse 1 and 22mΩ E-Fuse 2
- Selectable Reverse-Current Blocking
- Configurable Input Brownout
- Power Disable Function
36V Charge and Backup Converter (PLP):
- Supports Up to 36V Storage Voltage (V_STRG)
- Charge Operation
  - External Pin to Set V_STRG and Power Failure Threshold
  - Configurable Charging Current
- Backup Operation:
  - Up to 10A Peak Current Capability
  - Up to 7A Valley Current Capability
  - Configurable Switching Frequency (f_SW)
Bidirectional Power-Sharing Converter:
- Selectable Boost-Sharing Mode or Buck-Sharing Mode
- Selectable Standalone Mode or Power-Sharing Mode
- Configurable Regulated Voltage with External FB Resistor or I²C Control in Standalone Buck Mode
System:
- Multiple-Time Programmable (MTP) Memory Configurable Up to 1,000 Times
- Digital I²C for Status Monitoring and Operation Control
- Health Monitoring for Storage Capacitor (C_STRG)
- Internal 8-Bit Analog-to-Digital Converter (ADC) to Monitor Input Current (I_INx), V_INx, and Input Power (P_INx) with a 60kSPS Sampling Rate
- System Power Failure and Interrupt Indicators
- Available in a QFN-37 (5mmx6mm) Package

Active Part Numbers:

MP5520GQJ-xxxx-Z MP5520GQJ-0000-Z MP5520GQJ-xxxx-P MP5520GQJ-0000-P

Meaning of P & Z

Related Products

Optimized Performance with MPS Inductor

EVL5520-QJ-00A 2.7V to 16V, Power-Outage Protection Management IC (PMIC) with Dual E-Fuses and Power-Sharing Function Evaluation Board

MPL

Optimized Performance with MPS Inductor

The EVL5520-QJ-00A is an evaluation board designed to demonstrate the capabilities of the MP5520, a high-efficiency, monolithic converter used for power management in enterprise and datacenter solid-state drive (SSD) applications. The MP5520 integrates dual input current-limit switches (e-fuses), a bidirectional buck-boost converter, and a bidirectional power-sharing converter. The dual e-fuses feature low on resistance (R_DS(ON)) and are designed for input voltages (V_IN1 and V_IN2) up to 16V and 6V, respectively. Both e-fuses provide input current limiting and reverse-current blocking. Soft start (SS) prevents inrush current during system start-up.

The bidirectional buck-boost converter provides energy management. Backup energy is stored in high-voltage capacitors, where the configurable charging current controls the rate at which the storage voltage (V_STRG) ramps up. Paired with the reverse-current blocking function of the e-fuses, the backup energy is fully utilized to support the load during power outages. When the bidirectional converter releases the energy from the storage capacitors, constant-on-time (COT) control minimizes the voltage drop during the transition from charge mode to backup mode. Only one inductor is required, which minimizes the total solution size.

The bidirectional power-sharing converter provides power sharing between the e-fuses. It can be configured to two modes: boost-sharing mode or buck-sharing mode. In buck-sharing mode, the MP5520 can work in either standalone mode or power-sharing mode. The internal analog-to-digital converter (ADC) accurately monitors the input voltages (V_INx), input currents (I_INx), and input powers (P_INx). To guarantee long-term system reliability, the MP5520 provides storage capacitor health monitoring.

The MP5520 requires a minimal number of readily available, standard external components, and is available in a QFN-37 (5mmx6mm) package.

$25.00
+ tax