QML-38535 is a vital standard in the aerospace and defense sectors, ensuring the reliability and durability of microcircuits used in critical applications. The Defense Logistics Agency (DLA) oversees this qualification process, guaranteeing that components meet stringent performance and quality criteria. Texas Instruments has recently made significant advancements by introducing the first QML-P flow plastic microcircuits, marking a notable milestone in the QML-38535 standard.
Understanding QML-P Flow
The QML-P flow represents a rigorous qualification process, ensuring plastic-encapsulated microcircuits withstand harsh space conditions. This advancement is crucial as it offers a cost-effective and reliable alternative to traditional hermetic packaging without compromising performance.
Current components in QML-P Flow
All the following components are radiation-hardened and SEE-characterized.
TPS7H3302-SP: High-Current LDO Voltage Regulator
The TPS7H3302-SP is a radiation-hardened double data rate (DDR) 3-A termination regulator with a built-in VTTREF buffer. It provides a complete, compact, low-noise solution for space DDR termination applications, such as single-board computers, solid-state recorders, and payload processing
TPS7H2201-SP: 6-A Radiation-Hardened eFuse
The TPS7H2201-SP is a single-channel eFuse that offers configurable rise time to minimize inrush current and reverse current protection. It features a P-channel MOSFET that operates over an input voltage range of 1.5V to 7V and supports a maximum continuous current of 6A. The switch is controlled by an on/off input (EN) that interfaces directly with low-voltage control signals.
TPS7H1111-SP: 1.5-A, Radiation-Hardened Negative LDO Regulator
The TPS7H1111-SP is an ultra-low noise, high PSRR, low dropout linear regulator (LDO) optimized for powering radio-frequency (RF) devices in a space environment. It can source up to 1.5 A over a 0.85-V to 7-V input range with a 2.2-V to 14-V bias supply.
TPS7H4001-SP: 18A, Radiation-Hardened, Synchronous Buck Converter
The TPS7H4001-SP is a radiation-hardness-assured, 7-V, 18-A synchronous buck converter with integrated low-resistance high-side and low-side MOSFETs. Through current mode control, it achieves high efficiency and reduced component count.
TPS7H5001-SP: Radiation-hardened, QMLV and QMLP 2-MHz dual-output PWM controller with synchronous rectification
The TPS7H500x-SP family of high-speed, radiation hardness-assured PWM controllers is designed for DC-DC converter topologies intended for space applications. These controllers feature a 0.613-V +0.7%/–1% accurate internal reference and configurable switching frequency up to 2 MHz. Each device offers programmable slope compensation and soft-start.
The introduction of the first QML-P flow plastic microcircuits by Texas Instruments marks a significant advancement in space-grade electronics. These components, qualified under the stringent QML-38535 standard, offer reliable and cost-effective solutions for various space applications. With their enhanced radiation tolerance and robust performance, they represent a new benchmark in the development of microcircuits for the aerospace and defence industries.
