MAX14737 datasheet(1/12 Pages) MAXIM

Il numero della parte	MAX14737

Spiegazioni elettronici	Protects Battery-Connected Modules with Minimal Power Consumption

PDF	12 Pages

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Produttore elettronici	MAXIM [Maxim Integrated Products]

Homepage	https://www.maximintegrated.com/en.html

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General Description

The MAX14736/MAX14737 overvoltage-protection (OVP)

devices guard battery-powered modules in portable

devices against overvoltage faults. The low 15mΩ (typ)

on-resistance, as well as the low 13µA (typ) quiescent

supply current of the devices, minimize power consump-

tion, making them an ideal choice for low-power systems.

Additionally, the devices feature a precision overvoltage-

lockout (OVLO) threshold, ultra-fast response time, and

surge suppression to ±35V, which serve to provide excel-

lent protection against even high slew-rate, high-voltage

transients.

The integrated power transistor in the devices is a

p-channel device, but the intrinsic body diode from OUT

to IN is removed through appropriate design techniques.

Consequently, when the switch is in the off state, reverse-

current blocking that is inherent to the devices. The

MAX14736/MAX14737 feature a push-pull POK output,

which is driven low if either an overvoltage, undervoltage,

or thermal fault is detected; or if the device is placed into

shutdown mode.

The MAX14736 has an active-low enable pin (EN), while

the enable pin (EN) on the MAX14737 is active high.

When the enable pin is driven to the active state, the

device is enabled. When driven to the inactive state, the

device is placed in a low-power shutdown mode and the

switch is kept in the off state.

The MAX14736/MAX14737 are offered in a small, 9-bump

(1.34mm x 1.36mm) wafer-level package (WLP) and oper-

ate over the -40°C to +85°C extended temperature range.

Benefits and Features

● Protects Battery-Connected Modules with Minimal

Power Consumption

• Wide Operating Input Voltage: +2.1V to +5.5V

• 4.5A Continuous Current Capability

• Integrated 15mΩ (typ) pFET

• Ultra-Low Supply Current: 13µA (typ)

● Allows Precise Design in OVLO Implementation

• Preset Accurate Internal OVP Thresholds

• MAX14736: 4.7V ±2.0%

• MAX14737: 5.2V ±2.0%

● Increases System Reliability Through Premium

Security

• Surge Immunity to ±35V

• Soft-Start to Minimize Inrush Current

• Output Hot Plug-In Protection

• Thermal Shutdown

• Ultra-Fast OVP Response Time: 200ns (typ)

● Minimizes Board Space by Compact WLP

• 9-Bump 1.34mm x 1.36mm WLP

Applications

● Smartphones

● Tablet PCs

● e-Readers

Ordering Information appears at end of data sheet.

19-7517; Rev 0; 5/15

Typical Application Circuit

PMIC

GND

MAX14737

POK

OUT

EN

IN

0.1µF

1kΩ

0.1µF

CHGIN

BATIN

BYP

SYS

BYPASS

SYSTEM

MICRO-B USB

HIDDEN BATTERY

MAX14736/MAX14737

Precision, Ultra-Fast, Low Supply Current,

Bidirectional Overvoltage Protector

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