HEF4528BT-Q100J

Multivibrators Overview

The HEF4528BT-Q100J is a dual retriggerable-resetable monostable multivibrator from the Nexperia HEF4528B-Q100 series. It operates within a supply voltage range of 3 V to 15 V and supports an ambient temperature range of -40 °C to +85 °C. The device features active LOW inputs (nA), active HIGH inputs (nB), and active LOW clear direct inputs (nCD). Outputs include nQ and its complement nQ, with pulse duration determined by external timing components CEXT and REXT.

Multivibrators Feature Summary

• Automotive product qualification in accordance with AEC-Q100 Grade 3
• Fully static operation with CMOS low power dissipation
• High noise immunity and standardized symmetrical output characteristics
• ESD protection exceeding 2000 V for HBM and 1000 V for CDM

Multivibrators Applications

• Non-retriggerable monostable multivibrator circuits
• Rising edge triggered timing applications
• Falling edge triggered timing applications

Multivibrators Procurement Notes

Verify that the specific ordering suffix matches the required package type and tape-and-reel configuration. Confirm the component meets the specified AEC-Q100 Grade 3 automotive qualification standards. Ensure the selected variant aligns with the intended operating temperature range and supply voltage requirements for the target application design.

Multivibrators Selection Notes

Select this component when a dual-channel monostable multivibrator with automotive reliability is required. The device accommodates both rising and falling edge triggering through dedicated input pins. Designers must connect unused inputs to VDD, VSS, or another input to ensure proper functionality and prevent undefined states during operation.

Multivibrators Part Context

This part belongs to the Nexperia HEF4528B-Q100 family of dual monostable multivibrators. It utilizes an SO16 plastic small outline package (SOT109-1) with a body width of 3.9 mm. The component complies with JEDEC standard JESD 13-B and is designed for use in automotive applications requiring robust performance across varying environmental conditions.

Multivibrators Replacement Considerations

HEF4528BT-Q100

Multivibrators FAQ

How is the output pulse duration determined?

The output pulse duration is determined by the values of the external timing capacitor (CEXT) connected between nCEXT and nREXT/CEXT, and the external resistor (REXT) connected between nREXT/CEXT and VDD.

What are the trigger conditions for the multivibrator?

A positive pulse on nQ is produced by a HIGH-to-LOW transition on input nA when nB is LOW, or a LOW-to-HIGH transition on input nB when nA is HIGH.