MAX14699
High-Accuracy, Surge-Protected Overvoltage Protectors
Fast Response, Tighter Accuracy, Low RON and Integrated Surge Protection in a WLP Package
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Overview
Features and Benefits
- Protects High-Power Portable Devices
- Wide Operating Input Voltage Protection from +2.1V to +28V
- 4.5A Continuous Current Capability
- Integrated 38mΩ (typ) n-Channel MOSFET Switch
- Fast 100ns (typ) Response Time
- Flexible Design
- Adjustable Overvoltage-Protection Trip Level
- Wide Adjustable OVLO Threshold Range from +4V to +20V
- Preset Internal Accurate OVLO Threshold: 13.75V
- Microphone Mode for Microphone Signals on IN
- Additional Protection Features Increase System Reliability
- Surge Immunity to +100V
- Soft-Start to Minimize In-Rush Current
- Internal 21ms Startup Debounce
- Thermal-Shutdown Protection
- Minimize PCB Area
- 12-Bump WLP (1.3mm x 2mm) Package
- -40°C to +85°C Operating Temperature Range
Product Details
The MAX14699 overvoltage protection (OVP) device features a low 38mΩ (typ) on-resistance (RON) internal FET and protects low-voltage systems against voltage faults up to +28VDC. An internal clamp also protects the device from surges up to +100V. The MAX14699 features a 100ns (typ) overvoltage response time to minimize voltage rise on OUT during an overvoltage event. When the input voltage exceeds the overvoltage threshold, the internal FET is quickly turned off to prevent damage to the protected downstream components.
The overvoltage protection threshold can be adjusted with optional external resistors to any voltage between 4V and 20V. With the OVLO input set below the external OVLO select voltage, the MAX14699 automatically selects the accurate internal trip threshold. The internal over voltage threshold (OVLO) is preset to 13.75V (typ). The device features an open-drain active-low ACOK output, indicating a stable supply between minimum supply voltage and VOVLO. The MAX14699 is protected against overcurrent events by an internal thermal shutdown.
The MAX14699 is offered in a small, 12-bump WLP package and operates over the -40°C to +85°C extended temperature range.
Applications
- Portable Media Players
- Smartphones
- Tablet PCs
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
Design Resources
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| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX14699EWC+ | Material Declaration | Reliability Data | 12-WLCSP-N/A | |
| MAX14699EWC+T | Material Declaration | Reliability Data | 12-WLCSP-N/A | |
| Wafer Fabrication Data |
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