Rainbow-electronics MAX14525 User Manual download pdf

General Description

The MAX14525 features a low R

35mΩ (typ) load

switch with four unique enable inputs. The MAX14525

is ideal for disconnecting the lithium-ion (Li+) battery

from the loads in portable devices such as cell phones.

The MAX14525 operates from a +2.2V to +5.5V supply

voltage.

The MAX14525 features an extremely low 0.8µA (typ)

quiescent supply current to maximize battery life in

portable devices. It is enabled from four possible

inputs: external charger connection capable of high

voltage up to +28V, travel adapter (TA), on key (ON_K),

factory mode enable (JIG), and switch enable (S_EN).

The S_EN input is internally ANDed with the switched

battery connection (IN).

The MAX14525 is available in a small 8-pin, 2mm x

2mm TDFN package and operates over the -40°C to

+85°C extended temperature range.

Applications

Cell Phones

PDAs

GPS

UMPC Computers

Digital Cameras

Features

♦ Low 35mΩ (typ) R

Load Switch

♦ Ultra Low, 0.8µA (typ) Supply Current

♦ Four Enable Inputs:

TA: +28V (max) Capable

ON_K: Accurate +3V Trigger Enable

JIG: Factory Mode Enable

S_EN: Logically ANDed with IN

♦ Space-Saving 8-Pin, 2mm x 2mm TDFN Package

♦ Controlled Turn-On to Limit dI/dt Pulses Due to

Lead Inductance

MAX14525

Battery Switch with Four Enable Inputs

________________________________________________________________

Maxim Integrated Products

MAX14525

*EP

*CONNECT EXPOSED PAD TO GND.

TOP VIEW

GND

S_EN

ON_K

JIG

BAT

TDFN-EP

2mm x 2mm

Pin Configuration

MAX14525

3.0V

BUTTON

SLEW RATE

CONTROL

CHARGER

ADAPTER

PHONE

LOADS

Li-ION

BATTERY

S_EN

JIG

ON_K

BAT

GND

Typical Application Circuit

19-4356; Rev 0; 10/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART PIN-PACKAGE TOP MARK

M AX 14525E TA+ T

8 TDFN-EP* ACQ

Note: The device is specified over the -40°C to +85°C operating

temperature range.

Denotes a lead-free/RoHS-compliant package.

EP = Exposed pad.

1 2 3 4 5 6 7

MAX14525 1

Summary of Contents

Page 1 - MAX14525

General DescriptionThe MAX14525 features a low RON35mΩ (typ) loadswitch with four unique enable inputs. The MAX14525is ideal for disconnecting the lit

Page 2

MAX14525Battery Switch with Four Enable Inputs2 _______________________________________________________________________________________ABSOLUTE MAXIMU

Page 3

MAX14525Battery Switch with Four Enable Inputs_______________________________________________________________________________________ 3PARAMETERSYMBOL

Page 4

MAX14525Battery Switch with Four Enable Inputs4 _______________________________________________________________________________________Typical Operati

Page 5

MAX14525Battery Switch with Four Enable Inputs_______________________________________________________________________________________ 5HYSTERESISABON_

Page 6

MAX14525Detailed DescriptionThe MAX14525 features a low 35mΩ (typ) RONloadswitch with four unique enable inputs. The MAX14525can be used to disconnect

Page 7

MAX14525Battery Switch with Four Enable InputsMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a

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Rainbow-electronics MAX14525 User Manual

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Summary of Contents

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