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A8600EJPTR-T
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A8600EJPTR-T

  • Category:Voltage regulator
  • Product Name:Quad output regulator with two high-side switches, BU/ACC voltage detector, and mute delay
  • Manufacturers:Allegro
  • Production Batch Number:15+
  • Encapsulation:48-lead LQFP
  • Stock Status:There is stock
  • Stock Quantity:8900
  • Minimum order quantity: 1
  • Details:Click here to find pdf of the A8600EJPTR-T
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  • Product introduction

A8600Designed to meet the power needs of next-generation car audio and infotainment systems, it provides all the control and protection circuitry needed to operate four high-current regulators with ±1.5% accuracy. The A8600 has adjustable asyncs for running three MOSFETs with integrated MOSFETsBuck regulatorof control circuits. In addition, the A8600 provides the control circuitry, gate drivers, and current sensing required to run a synchronous buck controller with external MOSFETs. In standby mode, the A8600 operates at 12 V VIN consumes less than 50 μA and uses pulse frequency modulation (PFM) to deliver 3.3 V/40 μA through the constant-flow regulator SW1. The constant-through regulator can be operated down to 3.6 VIN(VIN drop) operates at voltage.

Features of the A8600 include an EN/SYNC input to turn on/off the A8600 or increase/decrease the basic pulse width modulation (PWM) frequency, four adjustable soft-start times and four external compensation pins. Output voltage monitoring for switches SW2, SW3, and SW4 is provided by a separate open-drain POK output. In addition, the A8600 offers two high-voltage, high-side switches with foldback overcurrent protection. These two high-side switches actively block the reverse current. The A8600 also offers direct battery (BU) and switched (accessory) battery (ACC) detectors and a mute pulse output with adjustable delay.

Protection features of the A8600 include pulse-by-pulse current limit, hiccup mode short-circuit protection, asynchronous diode protection, BOOT voltage protection, undervoltage lockout, overvoltage protection, and thermal shutdown.

The A8600 is available in a low profile, exposed power board in a 48-pin LQFP package (suffix: LP). The package is lead (Pb) free and features 100% matte tin leadframe plating.

  • Four independent high-current switching regulators
  • Adjustable 1.0 A/±1.5% constant-through asynchronous buck regulator with integrated 150 mΩ MOSFET (SW1).
    • PFM delivers 3.3 V/40 μA at 12 V at the same timeIN Only less than 50 μA is consumed
    • Can be dropped to 3.6 VIN runs at voltage
  • Adjustable 1.5 A/±1.5% asynchronous buck regulator with integrated 120 mΩ high-side MOSFET (SW2).
  • Adjustable 2.0 A/±1.5% asynchronous buck regulator with integrated 110 mΩ MOSFET (SW3).
  • Adjustable ±1.5% synchronous buck regulator with integrated gate driver and current sensing (SW4).
  • Fixed 425 kHz interleaved PWM switching frequency
  • EN/SYNC input for PWM frequency scaling
  • Adjustable soft-start time for each switching regulator
  • All switching regulators offer prebiased start-up with zero reverse current
  • All switching regulators are protected against overvoltage
  • External compensation for all switching regulators
  • Power supply operating good (POK) open-drain output with anti-spike pulse
  • BU and ACC voltage detectors and comparators
  • Mute control with programmable delay
  • Two built-in high-voltage, high-side NMOS switches (S1 and S2) with foldback short-circuit protection
  • High-side switches are synchronously controlled on/off
  • High-side switchbank reverse current
  • Built-in charge pump for high-side switching bias
  • Withstands inrush voltages up to 40 V
  • −40°C to 85°C ambient operating temperature range
  • 150°C maximum junction temperature
  • Surface mount package with enhanced thermal dissipation

 

andA8600EJPTR-TRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
A8600EJPTR-T Allegro 15+ 48-lead LQFP Quad output regulator with two high-side switches, BU/ACC voltage detector, and mute delay

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