MAX8606ETD+ MAXIM [Maxim Integrated Products], MAX8606ETD+ Datasheet

MAX8606ETD+

Manufacturer Part Number

MAX8606ETD+

Description

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mOHM Battery Switch in TDFN

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.MAX8606ETD.pdf (12 pages)

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The MAX8606 complete 1-cell Li+ battery charge-man-

agement IC operates from either a USB port or AC

adapter. It integrates a battery disconnect switch, cur-

rent-sense circuit, PMOS pass element, and thermal-

regulation circuitry, while eliminating the external

reverse-blocking Schottky diode, to create a simple

and small charging solution. The charging sequence

initiates from power-OK indication, through prequalifi-

cation, fast-charge, top-off charge, and finally charg-

ing-complete indication for single-cell Li+ batteries.

Charging is controlled using constant current, constant

voltage, or constant die-temperature (CCCVCT

lation for safe operation in handhelds.

Two logic inputs (EN1 and EN2) select suspend mode,

100mA, 500mA, or ≤1A input current limits to suit USB

requirements. Proprietary thermal-regulation circuitry

limits the die temperature to +100°C to prevent exces-

sive heat on the system PC board. Additional safety

features include an NTC thermistor input (THM) and

internal timers to protect the battery. A 3.5V to 4.2V SYS

output, in conjunction with the low-R

switch, powers the system even when the battery is

deeply discharged or not installed. The IC also offers a

+3.3V/500µA output (VL), a charging status flag (CHG),

and an input-supply detection flag (POK). The

MAX8606 operates from a +4.25V to +5.5V supply and

includes undervoltage lockout below +3.4V and over-

voltage protection up to +14V.

19-3795; Rev 0; 8/05

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

with Integrated 50mΩ Battery Switch in TDFN

TOP VIEW

Cellular Phones, Smartphones, PDAs

Digital Cameras, MP3 Players

USB Appliances, Charging Cradles and Docks

USB/AC Adapter, Li+ Linear Battery Charger

________________________________________________________________ Maxim Integrated Products

General Description

MA8606

TDFN

Pin Configuration

Applications

DSON

battery

) regu-

♦ Small 3mm x 3mm Thermally Enhanced TDFN

♦ USB-Compliant Suspend Mode (20µA)

♦ Selectable 100mA, 500mA, and Up to 1A Input

♦ USB or AC Adapter Input

♦ +6V to +14V Input Overvoltage Protection

♦ Input UVLO Below +4V Rising (3.5V Falling)

♦ Automatic Current Sharing Between Battery

♦ Die Temperature Regulation (+100°C)

♦ Prequal, Fast-Charge, and Top-Off Timers

♦ Low Dropout Voltage, 250mV at 0.5A

♦ NTC Thermistor Input

♦ Charge Status and Input-Supply Detection Flags

+Denotes lead-free package.

MAX8606ETD+

Package (0.8mm max height)

Current Limits

Charging and System

STAND-ALONE

PART

USB/AC-ADAPTER

SELECTION

OVP UP TO 14V

CURRENT

INPUT

µP

Typical Operating Circuit

-40°C to +85°C

TEMP RANGE

GND

EN1

EN2

TMR

SETI

Ordering Information

CONTROL

MAX8606

PIN-PACKAGE

14 TDFN 3mm x

3mm (T1433-1)

THM

CHG

POK

SYS

BAT

3.5V TO 4.2V

Features

INDICATORS

STATUS

Li+

MARK

0.1µF

TOP

AAF

Related parts for MAX8606ETD+

MAX8606ETD+ Summary of contents

Page 1

... Die Temperature Regulation (+100°C) ♦ Prequal, Fast-Charge, and Top-Off Timers ♦ Low Dropout Voltage, 250mV at 0.5A ♦ NTC Thermistor Input ♦ Charge Status and Input-Supply Detection Flags battery DSON PART MAX8606ETD+ +Denotes lead-free package. Applications USB/AC-ADAPTER OVP UP TO 14V 8 INPUT CURRENT ...

Page 2

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN ABSOLUTE MAXIMUM RATINGS IN to GND .............................................................. -0.3V to +16V BAT, SYS, EN1, EN2, POK, CHG, TMR to GND.......-0.3V to +6V VL, SETI, THM to GND .............................................-0.3V ...

Page 3

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN ELECTRICAL CHARACTERISTICS (continued) = 3.3V, EN1 = EN2 = GND 5.0V BAT noted. Typical values are +25°C.) (Note 1) ...

Page 4

Page 5

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN = 0, EN1 = 1, EN2 = 0, circuit of Figure +5V 3.6V BAT SYS SUPPLY CURRENT vs. INPUT ...

Page 6

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN PIN NAME Batter y C onnecti on. The ver s char cur r ent and m oni tor s b ...

Page 7

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN ANY CHARGING STATE R > 3.93kΩ AND 305Ω < R THM R < 28.3kΩ R > 28.3kΩ THM THM TEMPERATURE SUSPEND BAT POK = ...

Page 8

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN IN EN1 CURRENT-LIMIT EN2 CIRCUITRY SETI OVLO UVLO VL VL LDO GND Figure 2. MAX8606 Block Diagram 8 _______________________________________________________________________________________ BODY- DIODE CONTROL LOGIC CIRCUITRY THERMAL REGULATION THM ...

Page 9

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN VL Internal Voltage Regulator The MAX8606 linear charger contains an internal linear regulator to supply the power for the IC. Bypass VL to GND with a 0.1µF ...

Page 10

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN Connect a 4.7µF ceramic capacitor from IN to GND as close to the IC as possible. Use a larger input bypass capacitor to reduce supply noise. Thermal ...

Page 11

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN +5V AC-ADAPTER INPUT V USB +5V R3 10kΩ Figure 4. USB Application with AC Adapter VBUS GND USB PORT D+ D- Figure 5. USB Charger Application ______________________________________________________________________________________ ...

Page 12

USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) PIN 1 INDEX AREA ...

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