MAX8671XETL+ Maxim Integrated Products, MAX8671XETL+ Datasheet

MAX8671XETL+

Manufacturer Part Number

MAX8671XETL+

Description

IC PMIC W/CHARGER 40-TQFN

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX8671XETL.pdf (44 pages)

Specifications of MAX8671XETL+

Function

Charge Management

Battery Type

Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)

Voltage - Supply

4.1 V ~ 6.6 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

40-WFQFN Exposed Pad

Mounting Style

SMD/SMT

Input Voltage

2.6 V to 6.6 V

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Output Current

0.5 A

Output Voltage

0.6 V to 5 V

Supply Current

0.285 mA

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The MAX8671X integrated power-management IC

(PMIC) is ideal for use in portable media players and

other handheld devices. In addition to five regulated

output voltages, the MAX8671X integrates a 1-cell lithi-

um ion (Li+) or lithium polymer (Li-Poly) charger and

Smart Power Selector™ with dual (AC-to-DC adapter

and USB) power inputs. The dual-input Smart Power

Selector supports end products with dual or single

power connectors. All power switches for charging and

switching the system load between battery and external

power are included on-chip. No external MOSFETs are

required.

Maxim’s Smart Power Selector makes the best use of

limited USB or AC-to-DC adapter power. Battery

charge current and input current limit are independent-

ly set. Input power not used by the system charges the

battery. Charge current and DC current limit are pro-

grammable up to 1A while USB input current can be set

to 100mA or 500mA. Automatic input selection switches

the system load from battery to external power. Other

features include overvoltage protection, charge status

and fault outputs, power-OK monitors, charge timer,

and battery thermistor monitor. In addition, on-chip

thermal limiting reduces battery charge rate to prevent

charger overheating.

The MAX8671X offers adjustable voltages for all out-

puts. Similar parts with factory-preset output voltages

are also available (contact factory for availability).

19-0885; Rev 0; 8/07

Smart Power Selector is a trademark of Maxim Integrated

Products, Inc.

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.

Portable Audio Players

GPS Portable Navigators

Smart Power Selector for Handheld Devices

________________________________________________________________ Maxim Integrated Products

General Description

PMIC with Integrated Charger and

Applications

♦ 16V-Tolerant USB and DC Inputs

♦ Automatically Powers from External Power or

♦ Operates with No Battery Present

♦ Single-Cell Li+/Li-Poly Charger

♦ Three 2MHz Step-Down Regulators

♦ Two Low I

♦ Output Power-Up Sequencing

♦ Thermal-Overload Protection

+ Denotes a lead-free package.

* EP = Exposed paddle.

MAX8671XETL+ -40°C to +85°C

OFF

Battery

μP

AC-TO-DC

ADAPTER

Up to 96% Efficiency

PART

Simplified Applications Circuit

USB

PEN1

PEN2

USUS

CEN

USB

PWM

CST1

CST2

DOK

UOK

Linear Regulators

TEMP RANGE PIN-PACKAGE

MAX8671X

Ordering Information

OUT2

OUT3

OUT4

OUT5

OUT1

SYS

40 Thin QFN-EP*

5mm x 5mm

OUT5

0.6V TO V

180mA

OUT4

0.6V TO V

180mA

Li+/LiPo

BATTERY

Features

SYS

OUT1

1V TO V

425mA

OUT2

1V TO V

425mA

OUT3

1V TO V

425mA

T4055-1

CODE

PKG

SYS

Related parts for MAX8671XETL+

MAX8671XETL+ Summary of contents

Page 1

... Operates with No Battery Present ♦ Single-Cell Li+/Li-Poly Charger ♦ Three 2MHz Step-Down Regulators Up to 96% Efficiency ♦ Two Low I ♦ Output Power-Up Sequencing ♦ Thermal-Overload Protection PART MAX8671XETL+ -40°C to +85°C + Denotes a lead-free package Exposed paddle. Simplified Applications Circuit AC-TO-DC ADAPTER Applications USB ...

Page 2

PMIC with Integrated Charger and Smart Power Selector for Handheld Devices General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

PMIC with Integrated Charger and Smart Power Selector for Handheld Devices Tables Table 1. Input Limiter Control Logic . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

PMIC with Integrated Charger and Smart Power Selector for Handheld Devices ABSOLUTE MAXIMUM RATINGS USB, DC, PEN1 to AGND.......................................-0.3V to +16V SYS, BAT, PV1, PV2, PV3 to AGND..........................-0.3V to +6V PG1, PG2, PG3, AGND .........................................-0.3V to +0.3V PV1, PV2, PV3 ...