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MAX20067B
Automotive 3-Channel Display Bias IC with VCOM Buffer, Level Shifter, and I2C Interface
Industry's First Integrated Power Solution for TFT-LCD with Synchronous Boost, Gate-Shading and I2C
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
Parametric specs for Multifunction PMICs
| VIN (V) (min) | 2.7 |
| VIN (V) (max) | 5.5 |
| # Step-Up Outputs | 2 |
| # Inverting Outputs | 1 |
| VOUT (V) (min) | -24 |
| VOUT (V) (max) | 28 |
| Package/Pins | TQFN-CU/32 |
| Budgetary Price (See Notes) | 2.05 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | Automotive 3-Channel Display Bias IC with VCOM Buffer, Level Shifter, and I2C Interface | Apr 26, 2021 | |
| Solution Guide | TFT-Bias for Automotive Applications |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Multifunction PMICs
| VIN (V) (min) | 2.7 |
| VIN (V) (max) | 5.5 |
| # Step-Up Outputs | 2 |
| # Inverting Outputs | 1 |
| VOUT (V) (min) | -24 |
| VOUT (V) (max) | 28 |
| Package/Pins | TQFN-CU/32 |
| Budgetary Price (See Notes) | 2.05 |
Key Features
- Versatile TFT Display Power Section
- IIntegrated Synchronous Boost Converter with Output Voltages Up to 18V and High-power (MAX20067) or Lower-power (MAX20067B) Options
- Integrated Charge-Pump Drivers for the VGON (+36V, max) and VGOFF (-24V, min) Outputs
- Low EMI Operation
- Programmable Switching Frequencies of 440kHz or 2.2MHz
- Programmable Spread Spectrum
- Full Sequencing Flexibility Through I2C, Along with Preset Sequences Using SEQ Pin
- Extended Diagnostics Using I2C Interface
- Undervoltage/Overvoltage on HVINP, VGON, and VGOFF
- Overcurrent on AVDD
- Temperature Warning
- Built-In Gate-Shading Circuit Controlled by CTL Input
- 8-Bit DAC-Controlled VCOM Buffer
- Robust
- -40°C to +105°C Operating Temperature Range
- Internal Temperature Shutdown
- AEC-Q100 Qualified
- Compact 32-Pin (5mm × 5mm) TQFN Package
Applications/Uses
- Central Information Displays
- Infotainment Displays
- Instrument Clusters
Description
The MAX20067/MAX20067B are complete TFT bias solution for automotive applications. It includes a current-mode boost converter and two push-pull charge-pump drivers.
The IC also includes a gate-shading push-pull level shifter that can be used to improve display uniformity (when needed), and a DAC and VCOM buffer. All blocks on the IC can be used in stand-alone mode or through the I2C interface.
Comprehensive control functions are included using the built-in I2C interface, as well as diagnostics and monitoring.
The IC is intended to operate with 2.7V to 5.5V supplies.
The MAX20067/MAX20067B are available in a 32-pin TQFN package and operates in the -40°C to +105°C temperature range.
The IC also includes a gate-shading push-pull level shifter that can be used to improve display uniformity (when needed), and a DAC and VCOM buffer. All blocks on the IC can be used in stand-alone mode or through the I2C interface.
Comprehensive control functions are included using the built-in I2C interface, as well as diagnostics and monitoring.
The IC is intended to operate with 2.7V to 5.5V supplies.
The MAX20067/MAX20067B are available in a 32-pin TQFN package and operates in the -40°C to +105°C temperature range.
Technical Docs
| Data Sheet | Automotive 3-Channel Display Bias IC with VCOM Buffer, Level Shifter, and I2C Interface | Apr 26, 2021 | |
| Solution Guide | TFT-Bias for Automotive Applications |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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