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A6727B

STMicroelectronics
Part Number A6727B
Manufacturer STMicroelectronics
Description Automotive single-phase PWM controller
Published Mar 6, 2023
Detailed Description SO-8 Maturity status link A6727B A6727B Datasheet Automotive single-phase PWM controller Features • AEC Q100 qualifie...
Datasheet PDF File A6727B PDF File

A6727B
A6727B

Overview
SO-8 Maturity status link A6727B A6727B Datasheet Automotive single-phase PWM controller Features • AEC Q100 qualified grade 1 • Flexible power supply from 5 V to 12 V • Power conversion input as low as 1.
5 V • ± 1.
5 % output voltage accuracy • High-current integrated drivers • Adjustable output voltage • 0.
8 V internal reference • Simple voltage mode control loop • Sensorless and programmable OCP across • Low-side RDS(on) • Oscillator internally fixed at 300 kHz • Internal soft-start • LS-less to manage pre-bias startup • Disable function • OV/UV protection • FB disconnection protection • SO-8 package Applications • Dedicated to automotive applications Description The A6727B is a single-phase step-down controller with integrated high-current drivers that provides complete control logic, protection and reference voltage to realize a general DC-DC converter by using a compact SO-8 package.
The device flexibility allows the management of conversions with power input VIN as low as 1.
5 V and device supply voltage in the range of 5 V to 12 V.
The A6727B provides simple control loop with voltage mode error-amplifier.
The integrated 0.
8 V reference allows the regulation of output voltages with ±1.
5 % accuracy over temperature variations.
The oscillator is internally fixed to 300 kHz.
The A6727B provides programmable overcurrent protection as well as over and undervoltage protection.
The current information is monitored across the low-side MOSFET RDS(on) saving the use of expensive and space-consuming sense resistors while output voltage is monitored through FB pin.
FB disconnection protection prevents excessive and dangerous output voltages from floating FB pin.
DS14159 - Rev 2 - March 2023 For further information contact your local STMicroelectronics sales office.
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2 A6727B Typical application circuit and block diagram Typical application circuit and block diagram Application circuit Figure 1.
Typical application circuit V...


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