APEK8589KLP-01-MH

• Product introduction

A8589Designed to meet the power needs of next-generation automotive audio and infotainment systems, providing all control and protection circuitry to produce high-current regulators with ±1.0% output voltage accuracy. The A8589 uses pulse frequency modulation (PFM) to obtain less than 50 from 12VμINAvoltage, simultaneous output of 3.3 V/40 μA. After startup, the A8589 runs to at least 3.6 VIN（VINContinued decline).

The performance of the A8589 includes PWM/PFMn mode control inputs, PWM (Logic High) or PFM (Logic Low) enabled. If the PWM/PFMn input is driven by an external clock signal above the base frequency (fOSC), the PWM frequency will be synchronized with the input clock frequency. The SLEEPn input pin controls a very low current cut-off mode with less than 5 μA internal circuit requirements and 10 μA maximum MOSFET pressure leak at 16 VIN，85ºC。 The A8589 is externally compensated to accommodate a wide range of frequencies and external components, and provides a power-on reset (NPOR) signal with output voltage verification.

The A8589's extensive protection features include pulse-by-pulse current limit, hiccup mode short-circuit protection, on/short asynchronous diode protection, BOOT on/short voltage protection, VIN undervoltage lockout, VOUTOvervoltage protection and thermal shutdown.

A8589Power is supplied in a low-configuration 16-pin TSSOP package with an exposed power board (suffix LP). The package is lead (Pb) free with 100% matte tin leadframe plating.

apply

• For automobiles
  • Instrument cluster
  • Sound system
  • navigation
  • HVAC
• Home audio
• • Automotive AEC-Q100 compliant
  • Withstand impulse voltages up to 40 V
  • Operates as low as 3.4 VIN(typ), VIN keeps declining
  • Pulse frequency modulation (PFM) is used from VINOnly tens of microamps are obtained while maintaining dimensional arc VOUT
  • PWM/PFMn mode controls the input pins
  • Provides up to 2.5 A of output current and integrated 110 mΩ high voltage MOSFETs
  • The SLEEPn input pin controls a very low current shutdown mode
  • Adjustable output voltage with °1.0% accuracy over the 0±C to 85°C temperature range and °1.5% accuracy over the 40±C to 150–C° temperature range
  • Programmable switching frequency: 250 kHz to 2.4 MHz
  • Sync function: Apply clock input to
  • The PWM/PFMn input pin will increase the PWM frequency
  • Low-level, power-on reset (NPOR) open-drain output
  • Maximum duty cycle of low dropout pressure
  • Prebias startup is possible with no reset of the output voltage
  • External compensation can be used for maximum flexibility
  • Compatible with ceramic or electrolytic output capacitors
  • Excellent protection to meet the most stringent application requirements
  • Overvoltage, pulse-by-pulse current limit, hiccup mode short-circuit protection, and thermal protection
  • Robust FMEA protects against pin open/short circuits and component faults
  • Surface mount package with enhanced thermal dissipation