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reference designMAX16923 | Demoboard MAX16923EVKIT

Analog Devices MAX16923 | Demoboard MAX16923EVKIT

Evaluation Kit for the MAX16923/MAX16926

Overview

TopologyBuck Converter
Input voltage4.5-36 V
Switching frequency400-2200 kHz
IC revision1

Description

The MAX16923 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB used to evaluate the MAX16923 automotive 4-output display-power solution. The MAX16923 is a 4-channel power-management IC designed to accommodate the main rails used in modern automotive TFT displays. The MAX16923 integrates a high-voltage buck converter that transforms battery voltages into a 5V or 3.3V intermediate rail. In addition, a high-voltage, always-on, low-quiescent-current linear regulator supplies power at 3.3V. The low-voltage section consists of a fully integrated DC/DC converter and an LDO running off the intermediate rail. A single START control pin initiates the start-up sequence, thereby simplifying device control. The MAX16923’s external PMOSFET control block allows battery voltage to be switched to a downstream device, such as a backlight boost converter. The MAX16923 also embeds a watchdog timer and selectable switching frequencies with spread spectrum.

Features

  • 4.5V to 36V Wide Input Voltage Range (40V Load Dump Tolerant)
  • One High-Voltage 2.1A Buck Converter (5V or 3.3V)
  • One High-Voltage 100mA Low-IQ Linear Regulator (3.3V)
  • One Low-Voltage 1.6A Buck Converter (3.3V, 1.8V, 1.2V, or 1.1V)
  • One Low-Voltage 180mA Linear Regulator (3.3V, 1.8V, 1.5V or 1.1V)
  • Power-Good Outputs
  • Integrated Watchdog Timer
  • Programmable Switching Frequency (400kHz, 440kHz, 2MHz, 2.2MHz)
  • Spread Spectrum
  • Proven PCB Layout
  • Automotive CISPR25 CLASS5 compliant
  • Fully Assembled and Tested

Typical applications

  • Central Information Displays; Infotainment Displays, Instrument Clusters

More information

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
SamplesAvailability & Sample
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74438357022
SPECWE-MAPI SMT Power Inductor, 2.2 µH, 7.1 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance2.2 µH
Performance Rated Current7.1 A
Saturation Current @ 30%9.2 A
DC Resistance22 mΩ
Self Resonant Frequency35 MHz
Operating Voltage80 V
MountSMT 
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