MPQ7944-AEC1

MPQ7944-AEC1

1-Channel Voltage Monitor, AEC-Q100 Qualified

Description

The MPQ7944-AEC1 is a 1-channel voltage monitor. It is engineered for automotive applications that require a voltage rail to be precisely monitored for safety.

The voltage monitor input has configurable over-voltage (OV) and under-voltage (UV) thresholds. Highly accurate high-frequency (HF) and low-frequency (LF) voltage monitoring can detect when the voltage thresholds are reached.

The MPQ7944-AEC1 features an I²C interface for configurability.

The MPQ7944-AEC1 is available in a QFN-16 (3mmx3mm) package with wettable flanks, and is available in AEC-Q100 Grade 1.

Features & Benefits

Precision Monitoring:
- 2.7V to 5.5V Input Voltage (V_IN ) Range
- 1 Single-Ended Voltage Monitor Input
- Absolute Over Voltage (OV)/Under-Voltage (UV) Thresholds for High-Frequency (HF) and Low-Frequency (LF) Components:
  - 0.2V to 1.475V, with 5mV/Step
  - 0.8V to 5.5V, with 20mV/Step
- High DC Accuracy across Temperature:
  - >1V, ±1%
  - <1V, ±10mV
- Analog-to-Digital Converter (ADC) for Voltage-Level Readback
- Power Sequence Recording for Power On, Power Off, and Sleep Entry/Exit
Configurability for Vast Flexibility:
- I²C Interface with Packet Error Checking (PEC)
- One-Time Programmable (OTP) Memory
Additional Features:
- Available in a QFN-16 (3mmx3mm) Package with 0.5mm Pitch and Wettable Flanks
- Available in AEC-Q100 Grade 1

Active Part Numbers:

MPQ7944GQE-xxxx-AEC1-Z MPQ7944GQE-xxxx-AEC1-P MPQ7944GQE-0000-AEC1-Z MPQ7944GQE-0000-AEC1-P

Meaning of P & Z

Related Products

MPQ7225GQJE-AEC1 16-Channel Current Sink LED Driver with Adaptive Feedback Control (AFC), AEC-Q100 Qualified

The MPQ7225 is a 16-channel current sink LED driver. Each channel is rated for up to 200mA of current, and 16 ICs can be cascaded together to create a 256-channel solution.

The MPQ7225 is optimized for animated or dynamic lighting applications. It employs 12-bit pulse-width modulation (PWM) dimming and 6-bit analog dimming register per channel, with individual control of each channel. The MPQ7225 is designed to function across distanced PCBs with a robust, high-speed, CAN-compatible differential interface.

The MPQ7225 features adaptive feedback control (AFC) to maximize system efficiency. The output voltage (V_OUT) of the pre-regulator (e.g. buck voltage regulator) is adjusted in real time so that the voltage across the channels remains at a minimum value (typically 300mV headroom at 200mA).

Frequency spread spectrum (FSS) optimizes EMC performance. The LED current’s ramping rate and the phase shift between channels can be digitally configured as well.

The MPQ7225 can aid a system design for functional safety with a failsafe (/FS) indicator. The full protection suite includes LED open protection, LED short protection, ISET pin open protection, ISET pin short protection, and thermal shutdown. If a fault condition occurs, the fault indicator pulls low, and the matching fault register is set.

The MPQ7225 is available in a QFN-32 (5mmx6mm) package, and is AEC-Q100 qualified.