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MAX16928

Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators

Rugged Automotive TFT-LCD Power Supply Operates at 2.2MHz to Reduce Solution Size and Minimize AM Band Interference

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX16928 is a highly integrated power supply for automotive TFT-LCD applications. The device integrates one boost converter, one 1.8V/3.3V regulator controller, and two gate voltage regulators. The device comes in several versions to satisfy common automotive TFT-LCD power-supply requirements (see the Ordering Information table in the full data sheet).

The boost converter uses spread-spectrum modulation to reduce peak interference and to optimize EMI performance. The sequencing input (SEQ) allows flexible sequencing of the positive-gate and negative-gate voltage regulators. The power-good indicator (PGOOD) indicates a failure on any of the converters or regulator outputs. Integrated thermal shutdown circuitry protects the device from overheating.

The MAX16928 is available in a 20-pin TSSOP package with exposed pad and operates over the -40°C to +105°C temperature range.

Data Sheet

Download	Rev 1	(PDF, 1.8MB)
E-Mail

An evaluation kit is available: MAX16928EVKIT

Key Features

High-Power (Up to 6W) Boost Output Providing Up to 18V
1.8V or 3.3V Regulator Provides 500mA with External npn Transistor
One Positive-Gate Voltage Regulator Capable of Delivering 20mA at 28V
One Negative-Gate Voltage Regulator
High-Frequency 2.2MHz Operation
Flexible Stand-Alone Sequencing
True Shutdown™ Boost Converter
Internal Soft-Start
Overtemperature Shutdown
-40°C to +105°C Operation
AEC-Q100 Qualified

Applications/Uses

Automotive Central Information Displays
Automotive Dashboards
Automotive Navigation Systems

Key Specifications:

Multifunction PMICs

Part Number

Primary Topology

Monitor/Control Features

DC-DC/Power Features

LCD/LED/Flash/CCD Features

V_IN
(V)

V_OUT
(V)

Max. I_OUT
(A)

Oper. Freq.
(kHz)

Inverting Outputs

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

min

max

≤

max w/pins

See Notes

MAX16928 NEW!

Inverting

Step-Up

Step-Up/Down

Shutdown

Avg. Current Mode Control

Current Limit

Internal Pwr. FETs

TFT Bias

5.5

-24

1.5

2000

TSSOP-EP/20

42.9

$1.75 @1k

See All Multifunction PMICs (96)

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 prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-5991 Rev 1; 2012-01-05
This page last modified: 2012-01-05