MPQ18831

MPQ18831

Automotive, Isolated, Dual-Input Half-Bridge Gate Driver

Description

The MPQ18831 is an isolated half-bridge gate driver solution with up to a 4A source and 8A sink peak current capacity. The gate driver is designed to drive power switching devices with a short propagation delay and pulse-width distortion.

By utilizing MPS's proprietary, capacitive-based isolation technology, the driver can provide up to 5kV_RMS of isolation voltage (per UL 1577) with a wide-body SOIC package. In addition, the common-mode transient immunity (CMTI) between the input side and output driver exceeds 150kV/μs. With these advanced features, the drivers operate with high efficiency, high power density, and robustness across a wide variety of automotive power applications.

The MPQ18831 integrates dual-channel gate drivers in one package. Each output can be grounded to separate grounds or connected to a positive or negative voltage reference. The secondary topology can be configured as a half-bridge high-side (HS) or low-side (LS) driver that is controlled by two independent input signals. To prevent shoot-through in the half-bridge driver, the MPQ18831 provides a configurable dead time (DT) set by an external resistor.

A wide primary-side VDDI supply range makes the driver well-suited to be interfaced with 3.3V or 5V digital controllers. The secondary-side driver accepts up to 30V supply, and all of the supply voltage pins feature various under-voltage lockout (UVLO) protections.

The MP18831 is available in a narrow-body or wide-body SOIC-16 package (SOIC-16 NB or SOIC-16 WB, respectively), an SOIC16-14 (3mm creepage) package, or an LGA-13 (5mmx5mm) package.

Features & Benefits

Dual-Input Half-Bridge Driver
Up to 5kV_RMS Input to Output Reinforced Isolation (SOIC-16 WB Package)
1850V_DC Functional Isolation between Two Secondary-Side Drivers (SOIC16-14 WB Package)
1500V_DC Functional Isolation between Two Secondary-Side Drivers (SOIC-16 NB/WB Packages)
700V_DC Functional Isolation between Two Secondary-Side Drivers (LGA-13 Package)
Common-Mode Transient Immunity (CMTI) >150kV/μs
2.8V to 5.5V Input VDDI Range to Interface with Transistor-to-Transistor Logic (TTL) and CMOS-Compatible Inputs
Up to 30V Output Drive Supply with Several Under-Voltage Lockout (UVLO) Protection Options
4A Source, 8A Sink Peak Current Output
50ns Typical Propagation Delay with Short ±5ns Distribution from Part to Part
Overlap Protection and Configurable Dead Time (DT) Control
-40°C to +150°C Operating Junction Temperature Range
Available in AEC-Q100 Grade 1
UL 1577 Certified:
- SOIC-16 NB Package: 3kV_RMS Isolation for 60s
- SOIC-16 WB Package: 5kV_RMS Isolation for 60s
- LGA-13 (5mmx5mm) Package: 2.5kV_RMS Isolation for 60s
DIN EN IEC 60747-17 (VDE 0884-17): 2021-10 Certification (Pending)
CQC Certification Per GB4943.1-2011 (Pending)

Active Part Numbers:

MPQ18831-8CGY-Z MPQ18831-8CGY-P MPQ18831-8EGY-Z MPQ18831-8EGY-P MPQ18831-A8BGY-Z MPQ18831-A8BGY-P MPQ18831-A8CGY-Z MPQ18831-A8CGY-P MPQ18831-A8EGY-Z MPQ18831-A8EGY-P MPQ18831-8EGYE-Z MPQ18831-8EGYE-P MPQ18831-8CGSE-Z MPQ18831-8CGSE-P MPQ18831-A8BGLU-Z MPQ18831-A8BGLU-P

Meaning of P & Z