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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

Parts approved by Analog Devices

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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
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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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