MAX14738EWT+ by Analog Devices

High-Current Overvoltage Protectors with Adjustable OVLO


The MAX14738/MAX14739 overvoltage protection devices feature a low 76mΩ (typ) on-resistance (RON) internal FET and protect low-voltage systems against voltage faults up to +36V. When the input voltage exceeds the overvoltage threshold, the internal FET is turned off to prevent damage to the protected 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 devices automatically choose the accurate internal trip thresholds. The internal overvoltage thresholds (OVLO) are preset to 6.8V (typ) (MAX14738) or 10V (typ) (MAX14739). The devices are also protected against overcurrent events by an internal thermal shutdown. The MAX14738/MAX14739 are offered in a small, 6-bump 1.3mm x 0.9mm wafer-level package (WLP) with an exposed pad and operate over the -40°C to +85°C extended temperature range.

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Features

Protects High-Power Portable Devices Wide Operating Input-Voltage Protection from +2.2V to +36V 3A Continuous-Current Capability Integrated 76mΩ (typ) nMOSFET Switch
Wide Operating Input-Voltage Protection from +2.2V to +36V
3A Continuous-Current Capability
Integrated 76mΩ (typ) nMOSFET Switch
Flexible Overvoltage Protection Design Adjustable Overvoltage Protection Trip Level Wide Adjustable OVLO Threshold Range from +4V to +20V Preset Internal Accurate OVLO Thresholds: 6.8V±2.9% (MAX14738), 10V±3.0% (MAX14739)
Adjustable Overvoltage Protection Trip Level
Wide Adjustable OVLO Threshold Range from +4V to +20V Preset Internal Accurate OVLO Thresholds: 6.8V±2.9% (MAX14738), 10V±3.0% (MAX14739)
Preset Internal Accurate OVLO Thresholds: 6.8V±2.9% (MAX14738), 10V±3.0% (MAX14739)
Additional Protection Features Increase System Reliability Soft-Start to Minimize In-Rush Current Internal 18ms Startup Debounce Thermal-Shutdown Protection
Soft-Start to Minimize In-Rush Current
Internal 18ms Startup Debounce
Thermal-Shutdown Protection
Minimize PCB Area 6-Bump WLP (1.3mm x 0.9mm)
6-Bump WLP (1.3mm x 0.9mm)

Specifications

# Channels 1
VIN (V) (min) 2.2
VIN (V) (max) 36
Over Voltage Trip Level (V) Adjustable (6.8V)
Under Voltage Lockout (V) 2
tGATE (On) (ms) 4
tGATE (Off) (µs) 0.2
Oper. Temp. (°C) -40 to +85
Package/Pins WLP/6
BudgetaryPrice (See Notes) 0


MAX14738EWT+ Special Function by Analog Devices

OVERVOLTAGE PROTECTOR/OVLO 6.8V WLP-6

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

IC Function Overvoltage Protector with Adjustable OVLO
Supply Voltage Min 2.5V
Supply Voltage Max 36V
IC Package Type WLP
No. of Pins 6Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

OVERVOLTAGE PROTECTOR/OVLO, 6.8V, WLP-6 | Farnell

Frequently Asked Questions

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Is the MAX14738EWT+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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