- MPQ8837-AEC1
MPQ8837-AEC1
36V, 8A, 4-Switch, Synchronous Buck-Boost Converter with CC/CV Operation and I2C, AEC-Q100 Qualified
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Description
The MPQ8837-AEC1 is a 36V, synchronous, 4-switch, buck-boost converter with integrated MOSFETs and a fixed switching frequency (fSW). The wide 2.8V to 36V input voltage (VIN) range makes the device well-suited for multi-purpose automotive and industrial applications. The device can deliver up to 8A output current (IOUT) or 60W of peak output power (POUT) at certain VIN supply ranges with excellent efficiency.
The I2C interface and one-time programmable (OTP) memory provide flexibility for configurable parameters.
fSW can be configured as 280kHz, 420kHz, 600kHz, 1.2MHz, and 2.1MHz. The configurable frequency spread spectrum (FSS) function can dither fSW periodically for improved EMI performance.
Fault condition protections include constant-current limit, input and output over-voltage protection (OVP), and thermal shutdown (TSD).
The MPQ8837-AEC1 requires a minimal number of readily available, standard components, and is available in a small, thermal-enhanced TQFN-18 (3mmx4mm) package with wettable flanks.
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Features & Benefits
- Designed to Handle Automotive Transients:
- Wide 2.8V to 36V Input Voltage (VIN) Range
- 1V to 26V Output Voltage (VOUT) Range
- Up to 8A Continuous Switch Current
- Up to 60W Peak Output Power (POUT)
- Single-Channel, 4-Switch, Synchronous Buck-Boost Configuration:
- Internal Buck Low-Side Power MOSFET (LS-FET)
- Internal Buck Low-Side Synchronous Rectifier
- Internal Boost LS-FET
- Internal Boost LS-FET
- Extends Vehicle Battery Life:
- 1μA Shutdown Current
- 280μA Quiescent Current (IQ)
- Easy to Optimize Efficiency and EMI Performance:
- Configurable 280kHz, 420kHz, 600kHz, 1.2MHz, or 2.1MHz Switching Frequency (fSW)
- Switching Frequency Spread Spectrum (FSS)
- Fixed fSW with Current Mode Control
- Rich Protections and Diagnostics:
- Input Under-Voltage Lockout (UVLO)
- Cycle-by-Cycle Current Limiting
- Constant Current-Limit Protection
- Over-Voltage Protection (OVP)
- Over-Temperature (OT) Shutdown
- Additional Features:
- I2C-Configurable Reference Voltage (VREF) Range: 0V to 2.047V, with 0.5mV Resolution
- Integrated 5V/60mA Low-Dropout (LDO) Regulator to Supply an External MCU
- I2C-Configurable ALT Pin for Fault/Event and Power Good (PG) Indication
- HW-Configurable I2C Target Address
- Line Drop Compensation
- External Clock Synchronization
- Selectable Automatic Pulse-Frequency Modulation (PFM)/Pulse-Width Modulation (PWM) Mode and Forced PWM Mode
- One-Time Programmable (OTP) Memory for Default Parameter Setting
- MeshConnectTM Flip-Chip Package
- Available in a TQFN-18 (3mmx4mm) Package with Wettable Flanks
- Available in AEC-Q100 Grade
- Functional Safety System Design Capable:
- MPSafeTM Compatible – Functional Safety Supporting Document Available
Active Part Numbers:
MPQ8837GLTHE-xxxx-AEC1-Z MPQ8837GLTHE-xxxx-AEC1-P MPQ8837GLTHE-0000-AEC1-Z MPQ8837GLTHE-0000-AEC1-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ8837-AEC1 Resources
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PRODUCT CATEGORY
STEP-DOWN/STEP-UP (BUCK-BOOST) CONVERTERS AND CONTROLLERSPRODUCT CATEGORY -
APPLICATION
INFOTAINMENT SYSTEMSAPPLICATIONAutomotive in-vehicle infotainment systems are becoming increasingly software-driven to enhance safety and security, as well as the overall driving experience. Modern cars integrate driving and environmental information, passenger entertainment, wireless connections, and navigation into a centralized infotainment system architecture. However, with the rise of sophisticated in-vehicle infotainment ...
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REARVIEW CAMERAS (OFF BATTERY)APPLICATIONRearview cameras are perhaps the most well-known camera subsystem used in advanced driver assistance systems (ADAS) applications. As this feature is being offered and expected in more and more vehicles, these camera systems must offer high integration and fast data processing to enable accurate, real-time monitoring of possible hazards behind the vehicle and channeling information directly to an L...
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APPLICATION
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ARTICLE
CHOOSING THE PROPER PARAMETERS IN FREQUENCY SPREAD SPECTRUM (FSS) DESIGNARTICLEThe frequency spread spectrum (FSS) technique has been widely applied in power converters to reduce electromagnetic interference (EMI) noise. However, in practice, there are multiple parameters in FSS design that must be considered to optimize EMI performance with minimal side effects. This article introduces FSS parameters such as modulation shape, frequency, and depth, and analyzes their impact ...
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ARTICLE
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