MAX16929
PRODUCTIONAutomotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators
High-Voltage TFT-LCD Power Supply Offers a Wide Array of Trim Options to Fit Any Automotive Display Power Requirements
- Part Models
- 14
- 1ku List Price
- Starting From $3.82
Overview
- Operating Voltage Range of 4V to 28V (Buck) or 3V to 5.5V (Boost)
- Independent 28V Input Buck Converter Powers TFT Bias Supply Circuitry and External Circuitry
- 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 Operation
- 2.1MHz (Buck Converter)
- 2.2MHz (Boost Converter)
- Flexible Stand-Alone Sequencing
- True Shutdown™ Boost Converter
- 6μA Low-Current Shutdown Mode (Buck)
- Internal Soft-Start
- Overtemperature Shutdown
- -40°C to +105°C Operation
The MAX16929 is a highly integrated power supply for automotive TFT-LCD applications. The device integrates one buck converter, 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 power-supply requirements (see the Ordering Information/Selector Guide table in the full data sheet).
Designed to operate from a single 4V to 28V supply or 5.5V to 28V supply, the device is ideal for automotive TFT-LCD applications. Both the buck and boost converters use 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 MAX16929 is available in a 28-pin TSSOP package with exposed pad, and operates over the -40°C to +105°C temperature range.
Applications
- Automotive Central Information Displays
- Automotive Dashboards
- Automotive Navigation Systems
Documentation
Data Sheet 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX16929AGUI/V+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929AGUI/V+T | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929BGUI/V+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929BGUI/V+T | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929CGUI/V+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929CGUI/V+T | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929DGUI/V+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929DGUI/V+T | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929EGUI/V+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929EGUI/V+T | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929GGUI/V+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929GGUI/V+T | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929IGUI/V+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX16929IGUI/V+T | TSSOP_4.4 / TSSOP_6.1 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| Switching Regulators & Controllers 2 | ||
| MAX16927 | Obsolete | Automotive TFT-LCD Power Supply with Boost, Buck, and Cuk Converters, VCOM Buffers, Gate Drivers, and SPI Interface |
| MAX16928 | PRODUCTION | Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators |
Evaluation Kits
Evaluation Kit for the MAX16929
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