MAX16923

Automotive 4-Output Display Power Solution with Watchdog

Industry's First Automotive PMIC for Automotive Display Applications


Please check latest availability status for a specific part variant.

Description

The MAX16923 is a 4-channel power-management IC designed to accommodate the main rails used in modern automotive TFT displays. The MAX16923 and the MAX20069 TFT power supply and LED backlight driver combine to provide a two-chip solution to all automotive display power-supply requirements.

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. Section output power is available in several low-voltage combinations (see the Ordering Information table). In addition, an integrated watchdog timer guards against runaway code.

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 is available in a TQFN package and operates in the -40°C to 105°C temperature range.

Key Features

  • High Integration
    • Complete Display Power Solution from Automotive Battery
    • 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 Linear Regulator (3.3V, 1.8V, 1.5V, or 1.0V)
      • MAX16923GTPB: 75mA
      • MAX16923GTPC/MAX16923GTPE: 175mA
      • All other variants: 180mA
    • Power-Good Outputs
  • Integrated Watchdog Timer
    • Robust and Low EMI
    • Programmable Switching Frequency
    • Internal Spread-Spectrum Oscillator
    • Slew-Rate Controlled Switching
    • Thermal Shutdown Protection
  • Compact TQFN20 4mm x 4mm Package

Applications/Uses

  • Central Information Displays
  • Infotainment Displays
  • Instrument Clusters
Part NumberPrimary TopologyVIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Inverting OutputsPackage/Pins
minmaxminmax
MAX16923 NEW!Step-Up/Down3.536152.12.10
TQFN-CU/20
See All Multifunction PMICs (83)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX16923EVKIT: Evaluation Kit for the MAX16923

Quality and Environmental Data

Request Reliability Report for: MAX16923 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources


MAX16923
Automotive 4-Output Display Power Solution with Watchdog

  • High Integration
  • Integrated Watchdog Timer
  • Compact TQFN20 4mm x 4mm Package