MAX16984AATJB/V+T
ActiveAUTOMOTIVE HIGH-CURRENT STEP-DOWN CONVERTER WITH USB PROTECTION/HOST CHARGER ADAPTER EMULATOR
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MAX16984AATJB/V+T
ActiveAUTOMOTIVE HIGH-CURRENT STEP-DOWN CONVERTER WITH USB PROTECTION/HOST CHARGER ADAPTER EMULATOR
Technical Specifications
Parameters and characteristics for this part
| Specification | MAX16984AATJB/V+T |
|---|---|
| Applications | USB Dedicated Charging Port (DCP), Power Switch |
| Current - Supply | 28 mA |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Supplier Device Package | 32-TQFN, 5x5 |
| Voltage - Supply [Max] | 28 V |
| Voltage - Supply [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 3.98 | |
| 12500 | $ 3.98 | |||
Description
General part information
MAX16984A Series
The MAX16984A combines a 5V automotive-grade step-down converter capable of driving up to 3.0A, a USB host charger adapter emulator, and 1 GHz USB protection switches for automotive USB host applications. The USB protection switches provide high-ESD, short-circuit protection and feature integrated host-charger port-detection circuitry adhering to the USB 2.0 Battery Charging Specification BC1.2 battery charging specification and Chinese Telecommunication Industry Standard YD/T 1591-2009. They also include circuitry for iPod®/iPhone®1.0A and iPad®2.4A dedicated charging modes. The HVD+ and HVD- ESD protection features include protection to ±15kV Air/±8kV Contact on the HVD+ and HVD- outputs to the IEC 61000-4-2 model and 330Ω, 330pF ESD model.The high-efficiency step-down DC-DC converter operates from a voltage up to 28V and is protected from load dump transients up to 40V. The device is optimized for high-frequency operation and includes I2C or resistor-programmable frequency selection from 310kHz to 2.2MHz to allow optimization of efficiency, noise, and board space based on application requirements. The fully synchronous DC-DC converter integrates high-side and low-side MOSFETs with an external SYNC input/output, and can be configured for spread-spectrum operation. Skip mode is available in light/no-load conditions to minimize quiescent current. The converter can deliver up to 3A of continuous current at +105°C. The MAX16984A has an integrated spread-spectrum oscillator to improve EMI performanceThe MAX16984A also includes a USB load current-sense amplifier and configurable feedback adjustment circuit designed to provide automatic USB voltage adjustment to compensate for voltage drops in captive cables associated with automotive applications. The MAX16984A limits the USB load current using both a fixed internal peak current threshold of the DC-DC converter and a user-configurable external USB load current-sense amplifier threshold.ApplicationsAutomotive ConnectivityAutomotive Radio and NavigationDedicated USB Power ChargerTelematicsUSB Port for Host and Hub Applications
Documents
Technical documentation and resources
