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Monolithic Power Systems Inc. MPQ5872GRPE-AEC1-Z
- Part No.:
- MPQ5872GRPE-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-VFDFN
- Datasheet:
-
MPQ5872GRPE-AEC1-Z.pdf
- Description:
- 42V LOAD DUMP TEST, 60M, SINGLE-
- Quantity:
- Payment:
- Shipping:
Inventory:4,727
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Product details
Overview
MPQ5872GRPE-AEC1-Z from Monolithic Power Systems is a smart high-side load switch IC designed for automotive power distribution. It integrates a 60mΩ N-channel MOSFET, withstands 42V load dump transients, supports 3.5V cold-crank operation, delivers up to 2A nominal load current, and provides ±4% current-sense accuracy at 1A - deployed in ADAS domain controllers for controlled power sequencing of radar modules.
For engineers reviewing the MPQ5872GRPE-AEC1-Z datasheet, MPQ5872GRPE-AEC1-Z pinout, MPQ5872GRPE-AEC1-Z application, or MPQ5872GRPE-AEC1-Z equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, wettable-flank QFN-8 package compatibility with automated optical inspection (AOI), real-time fault reporting via FT/CS pin, and configurable external current limit down to 500mA using ILIM resistor programming.
Technical Context
The MPQ5872GRPE-AEC1-Z implements a high-side switching architecture with integrated charge pump gate driver, enabling full enhancement of its internal N-MOSFET across 3.5V–28V input range. Its dual-mode diagnostics - enabled by DIAG_EN pin logic level - support both on-state short-to-battery detection and off-state open-load sensing with 1.05V threshold and 700μs deglitch timing.
Current regulation combines fast (<1µs) over-current shutdown with programmable closed-loop current limiting (via ILIM resistor) and adjustable soft-start slew rate (via SS capacitor). Fault reporting is consolidated on the FT/CS pin, which outputs either proportional current sense voltage (1/1000×ILOAD) or a 4.4V fault flag, eliminating need for external comparators or ADC calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 28V continuous; withstands 42V load dump pulses - enables direct battery connection in 12V automotive systems without external TVS clamping. |
| RDS(ON) | 60mΩ typical at 12V/VIN ≥5V, 25°C - limits conduction loss to ≤240mW at 2A, reducing thermal stress in compact infotainment modules. |
| Standby Current | 0.5μA with DIAG_EN = GND - extends vehicle battery life during extended parking mode in always-on ADAS ECUs. |
| Current Sense Accuracy | ±4% at ILOAD ≥1A, ±6% at 300mA - enables precise real-time load monitoring for predictive fault logging without MCU-side calibration. |
| Soft-Start Slew Rate Control | Adjustable via external SS capacitor (ISS = 10μA constant current) - prevents inrush-induced bus droop when powering 47μF output capacitance in head-unit displays. |
| Diagnostic Enable Threshold | DIAG_EN high threshold = 1.2V - compatible with 3.3V and 5V microcontroller GPIOs for flexible system-level fault management. |
| Thermal Shutdown | 175°C with 30°C hysteresis - protects against sustained overload in under-hood environments while allowing safe recovery after transient overloads. |
Pinout & Package
MPQ5872GRPE-AEC1-Z uses a wettable-flank QFN-8 (2mm × 2.5mm) package, optimized for automated optical inspection and high-reliability automotive reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Main power input | Connects directly to 12V battery rail; rated for 42V transient survival - eliminates need for upstream transient suppressors in cost-sensitive modules. |
| EN (Pin 2) | Enable control input | 3.3V/5V-compatible logic enable with 1.2V threshold and 200mV hysteresis - ensures robust noise immunity in electrically noisy vehicle cabins. |
| DIAG_EN (Pin 3) | Diagnostics enable/disable | Pull high to activate off-state open-load and short-to-battery detection; pull low to reduce standby current to 0.5μA - selectable per system power budget. |
| FT/CS (Pin 4) | Fault reporting & current sense | Outputs 1/1000×ILOAD voltage (0–3V linear range) or pulls up to 4.4V during faults - enables single-pin bidirectional communication with MCU ADC or comparator. |
| GND (Pin 5) | Power ground reference | Low-impedance return path for MOSFET source, current sense, and diagnostics - requires solid copper pour beneath exposed pad for thermal and EMI performance. |
| ILIM (Pin 6) | External current limit set | Connect to GND via resistor to program CL from 500mA to 3A; floating or incorrect termination disables external limit - prevents accidental misconfiguration. |
| SS (Pin 7) | Soft-start timing control | Charged by internal 10μA current source; sets VOUT ramp time via CSS - avoids inrush-triggered OCP during cold-start of capacitive loads like display backlights. |
| OUT (Pin 8) | Switched output to load | N-MOSFET source terminal; connects to load side of system - supports reverse-polarity protection when paired with external diode in high-side configuration. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Rated for -40°C to +125°C ambient operation with full parametric validation - meets functional safety requirements for ASIL-B subsystems without additional derating. |
| Wettable flank QFN-8 package | Enables automated solder-joint inspection (AOI) on production lines - reduces field failure risk from voiding or insufficient wetting in high-volume automotive assembly. |
| Configurable external current limit | Resistor-programmable CL from 500mA to 3A with ±8% accuracy above 500mA - allows one BOM item to serve multiple load classes (e.g., camera vs. radar sub-modules). |
| Full on/off-state diagnostics | Detects open-load, short-to-battery, over-current, and thermal faults with dedicated FT/CS pin signaling - replaces discrete monitoring circuitry and saves PCB area. |
| Adjustable start-up slew rate | SS capacitor sets VOUT rise time independently of load capacitance - prevents false OCP triggering during hot-plug events in modular vehicle architectures. |
Applications
| ADAS Radar Power Sequencing | Infotainment Display Backlight Control |
|---|---|
|
Use Scenario: Controlled power-up of 77GHz radar transceiver modules during vehicle ignition sequence, with inrush current limiting and real-time load monitoring. IC Role / Device Role / Timing Role: High-side power switch managing 1.8A nominal radar supply; enables soft-start ramp and detects open-circuit antenna faults before RF activation. Use Value: Prevents bus droop-induced microcontroller reset during radar initialization and reports open-load conditions before RF transmission begins - improving system diagnostic coverage. |
Use Scenario: Driving LED backlight strings in digital instrument clusters, requiring stable dimming control and fault detection during vibration-prone driving conditions. IC Role / Device Role / Timing Role: Smart high-side switch supplying 1.2A to boost converter input; provides short-to-battery detection during connector fretting and thermal shutdown during prolonged sunload exposure. Use Value: Eliminates need for separate current-sense amplifier and comparator, reducing BOM count by 3 components while maintaining ±4% current measurement accuracy across temperature. |
| Body Control Module Sub-Load Switching | Telematics Unit Always-On Power Path |
|
Use Scenario: Managing auxiliary 2A loads (e.g., door lock actuators, mirror heaters) in centralized body control units with shared 12V rail. IC Role / Device Role / Timing Role: Single-channel load switch with programmable 1.5A external current limit and off-state open-load detection - isolates failed loads without disabling entire subsystem. Use Value: Enables selective load disable and diagnostics via single FT/CS pin, reducing CAN bus diagnostic message overhead and simplifying ECU firmware logic. |
Use Scenario: Providing always-on 300mA power path to telematics control unit (TCU) memory and RTC during vehicle sleep mode, with ultra-low leakage and wake-up fault reporting. IC Role / Device Role / Timing Role: Low-quiescent switch with 0.5μA standby current and DIAG_EN-controlled diagnostics - maintains power integrity while minimizing parasitic drain below 20μA system threshold. Use Value: Extends parked vehicle battery life beyond 90 days without recharge, meeting OEM requirements for connected-car "find my car" functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart high-side load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS4H160-Q1 | Higher RDS(ON) (100mΩ), fixed 2.5A internal CL, no external CL programming | Lacks resistor-configurable current limit and adjustable soft-start - less flexible for multi-load BOM consolidation | Choose when only basic high-side switching with integrated diagnostics is required and board space permits larger thermal solution. |
| STL303M3 | Lower voltage rating (28V max), no load-dump tolerance, ±10% CS accuracy at 1A | Not qualified for AEC-Q100 Grade 1; limited to 125°C junction - unsuitable for under-hood deployment | Consider only for non-safety-critical cabin applications where 42V transient immunity and full automotive qualification are not mandated. |
Compared with TPS4H160-Q1 and STL303M3, MPQ5872GRPE-AEC1-Z uniquely combines 42V load-dump resilience, resistor-programmable current limiting, and ±4% current-sense accuracy - making it optimal for next-generation ADAS domain controllers requiring precise, scalable, and AEC-Q100-compliant power switching.
Availability
MPQ5872GRPE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment systems, advanced driver-assistance systems (ADAS), and body control modules requiring stable component supply, AEC-Q100 compliance, and wettable-flank package reliability.
Supply support for MPQ5872GRPE-AEC1-Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs for automotive, industrial, and consumer applications - with over 20 years of expertise in integrated DC/DC conversion and smart power switches.
The MPQ5872 belongs to MPS's AEC-Q100-qualified smart load switch product line, engineered specifically for automotive power distribution networks requiring robust transient handling, precise diagnostics, and minimal PCB footprint in space-constrained ECUs.
FAQ
What is the maximum allowable load dump voltage the MPQ5872GRPE-AEC1-Z can withstand?
The MPQ5872GRPE-AEC1-Z is rated to withstand load dump transients up to 42V per ISO 7637-2 Pulse 5a, verified across temperature and process corners. This rating applies without external clamping components, enabling direct battery connection in 12V automotive systems. The device remains functional during the transient and resumes normal operation afterward.
How does the FT/CS pin differentiate between normal current sensing and fault reporting?
The FT/CS pin outputs a linear voltage (VCS = ILOAD/1000 × RCS) during normal operation, bounded within 0–3V. When any fault occurs - including over-current, thermal shutdown, off-state open-load, or short-to-battery - VCS is actively pulled up to 4.4V (typical), providing unambiguous, single-wire fault signaling without requiring additional logic or voltage thresholds.
Can the MPQ5872GRPE-AEC1-Z be used with a 3.3V microcontroller for EN and DIAG_EN control?
Yes. Both EN and DIAG_EN inputs have guaranteed logic-high thresholds of 1.2V (min) and hysteresis of 200mV, making them fully compatible with 3.3V GPIOs. No level-shifting is required. The internal 500kΩ pull-down resistors ensure defined low states when GPIOs are tri-stated or during MCU reset sequences.
What is the minimum external current limit achievable using the ILIM pin?
The MPQ5872GRPE-AEC1-Z supports external current limits down to 500mA with ±15% accuracy (RCL ≤ 1.4kΩ). Below this value, accuracy degrades significantly; the datasheet explicitly recommends avoiding external CL settings below 500mA due to increased error and reduced short-circuit response margin during startup.
Does the MPQ5872GRPE-AEC1-Z require an external freewheeling diode for inductive loads?
For inductive loads ≤5mH with peak switch-off current ≤3A, the MPQ5872GRPE-AEC1-Z safely dissipates demagnetization energy internally. For larger inductances or higher currents, an external freewheeling diode is mandatory to prevent VOUT negative excursion beyond -0.3V - which would damage the MOSFET body diode and compromise reliability.
How is thermal performance affected by the wettable flank QFN-8 package?
The wettable flank design improves solder joint reliability and enables AOI, but does not alter thermal resistance. θJA remains 67.2°C/W (JEDEC 4-layer board); however, the exposed thermal pad must be connected to ≥2cm² of 2oz internal copper plane for optimal heat dissipation. Without proper thermal land, junction temperature may exceed 150°C at 2A continuous load.
Is the current sense ratio KCS calibrated per unit or lot?
KCS is trimmed during wafer sort and is guaranteed to be 1000 ±7% over temperature (-40°C to +150°C) and supply voltage (5V–28V). No per-unit calibration is required; the ±4% accuracy at 1A is achieved through factory-trimmed current mirrors and is validated across process, voltage, and temperature corners - eliminating MCU-side calibration routines.
MPQ5872GRPE-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Package/Case:
- 8-VFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 5V ~ 28V
- Voltage - Supply (Vcc/Vdd):
- 5V ~ 28V
- Current - Output (Max):
- -
- Rds On (Typ):
- 60mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Slew Rate Controlled
- Fault Protection:
- Current Limiting (Fixed), Over Temperature
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-QFN (2x2.5)
MPQ5872GRPE-AEC1-Z FAQ
1.How can I place an order for MPQ5872GRPE-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ5872GRPE-AEC1-Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPQ5872GRPE-AEC1-Z reliable?
The price and inventory of MPQ5872GRPE-AEC1-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ5872GRPE-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ5872GRPE-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ5872GRPE-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ5872GRPE-AEC1-Z?
MPQ5872GRPE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ5872GRPE-AEC1-Z order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPQ5872GRPE-AEC1-Z?
For technical support, including MPQ5872GRPE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ5872GRPE-AEC1-Z requirements.
6.How does Aetrix verify that MPQ5872GRPE-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ5872GRPE-AEC1-Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPQ5872GRPE-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ5872GRPE-AEC1-Z?
All MPQ5872GRPE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ5872GRPE-AEC1-Z, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPQ5872GRPE-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ5872GRPE-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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