Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsPMICsPMIC - battery management Charge management Li-Ion, Li-Po TDFN 14 EP (3x3) Surface-mount

General Description

The MAX8600/MAX8601 single-/dual-input linear bat-

tery chargers safely charge single-cell Li+ batteries.

The charging rate is optimized to accommodate the

thermal characteristics of a given application. There is

no need to reduce the maximum charge current or

worst-case charger power dissipation. Charging is opti-

mized for Li+ cells using a control algorithm that

includes low-battery precharging, voltage and current-

limited fast-charging, and top-off charging, while con-

tinuously monitoring the battery for overvoltage,

over/undertemperature, and charging time. The charg-

er timeout protection is programmable. The charger

status is indicated by three open-drain outputs.

The MAX8601 automatically selects between either a

USB or AC adapter input source. The AC adapter

charge current is programmable, while USB charge

current is set not to exceed either 100mA or 500mA,

depending on the USEL input. The MAX8600 is a sin-

gle-input charger with no USB source input.

The MAX8600/MAX8601 are available in a 3mm x 3mm

power-enhanced TDFN package.

Applications

Cell Phones Portable Media Players

Digital Cameras MP3 Players

PDAs Wireless Appliances

Features

♦ Single- (MAX8600) or Dual- (MAX8601) Input Li+

Charger

♦ Up to 1A Programmable Fast-Charge

♦ 100mA/500mA USB Select Input (MAX8601)

♦ ±5% Fast-Charge Current-Limit Accuracy

♦ 14V Input Overvoltage Protection

♦ Programmable On-Chip Charge Timers

♦ Battery Thermistor Input

♦ Charger-Status Outputs

♦ Thermally Optimized Charge Rate

♦ 14-Pin, 3mm x 3mm TDFN Package

MAX8600/MAX8601

Single-/Dual-Input 1-Cell Li+ Chargers with

OVP Protection and Programmable Charge Timer

________________________________________________________________ Maxim Integrated Products 1

19-3565; Rev 3; 12/08

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.

EVALUATION KIT

AVAILABLE

Ordering Information

PART

TEMP

RANGE

PIN-PACKAGE

TOP

MARK

MAX8600ETD+

-40°C to

+85°C

14 TDFN-EP* 3mm x

3mm (T1433-2)

ABB

MAX8601ETD+

-40°C to

+85°C

14 TDFN-EP* 3mm x

3mm (T1433-2)

AAC

Pin Configurations continued at end of data sheet.

BAT

Li+

THM

ADAPTER

USB

PORT

GND

USB

OFF

FLT

LOGIC

CHARGE

STATUS

SETI

USEL

POK

CHG

MAX8601

500mA

100mA

Typical Operating Circuit

MAX8600

TDFN

TOP VIEW

SETI

BAT

THM

GND

N.C.

FLT

CHG

POK

N.C.

Pin Configurations

*EP = Exposed pad.

+Denotes a lead(Pb)-free/RoHS-compliant package.

Summary of content (13 pages)

PAGE 1
9-3565; Rev 3; 12/08 KIT ATION EVALU E L B A IL AVA Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer The MAX8600/MAX8601 single-/dual-input linear battery chargers safely charge single-cell Li+ batteries. The charging rate is optimized to accommodate the thermal characteristics of a given application. There is no need to reduce the maximum charge current or worst-case charger power dissipation.
PAGE 2
MAX8600/MAX8601 Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer ABSOLUTE MAXIMUM RATINGS DC, USB to GND ....................................................-0.3V to +16V BAT, CT, CHG, EN, FLT, SETI, POK, THM, USEL to GND..................................-0.3V to +6.0V Continuous Power Dissipation (TA = +70°C) 14-Pin TDFN 3mm x 3mm Multilayer PCB (derate 24.4mW/°C above +70°C) ........................ 1951.2mW Operating Temperature Range ...........................
PAGE 3
Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer (VDC = VUSB = 5V, VBAT = 4V, V EN = 0V, RSETI = 2kΩ, CCT = 0.068µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C. Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS EN, USEL Logic Input Thresholds Logic Input Leakage Current Rising 1.6 Falling V EN = VUSEL = 0 to 5.5V 0.4 TA = +25°C 0.001 TA = +85°C 0.01 1 12 100 TA = +25°C 0.001 1 TA = +85°C 0.
PAGE 4
Typical Operating Characteristics (VDC = 5V, RSETI = 2kΩ, VBAT = 3.6V, MAX8601 evaluation kit with thermal resistance of 50°C/W. TA = +25°C, unless otherwise noted.) DISABLED SUPPLY CURRENT vs. INPUT VOLTAGE MAX8600/01 toc02 800 700 600 500 400 300 1000 RSETI = 1.5kΩ CHARGE CURRENT (mA) 800 900 SUPPLY CURRENT (μA) 900 700 600 500 400 300 200 200 100 800 600 4 6 8 10 12 0 2 4 6 8 10 12 14 0 INPUT VOLTAGE (V) VBAT (V) CHARGE CURRENT vs. DC VOLTAGE CHARGE CURRENT vs.
PAGE 5
Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer CHARGE CURRENT vs. AMBIENT TEMPERATURE (1A CHARGE) 800 VBAT = 3.6V 700 600 500 400 MAX8600/01 toc10 CHARGE CURRENT (mA) 900 800 700 FAST-CHARGE TIME (MIN) VBAT = 4V 1000 FAST-CHARGE TIME vs. CCT MAX8600/01 toc09 1100 600 500 400 300 200 300 200 100 RSETI = 1.5kΩ 100 -40 -15 10 35 60 85 0 0.010 0.045 0.080 0.115 0.
PAGE 6
MAX8600/MAX8601 Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer Pin Description (continued) PIN NAME FUNCTION 12, 13 DC DC Input Supply. Connect DC to a 4.5V to 7V charging source. Bypass DC to GND with a 1µF or larger capacitor. DC takes priority over USB when both are present (MAX8601). Both DC inputs should be connected together externally. 14 14 FLT Fault Status Output.
PAGE 7
Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer DC Charging The MAX8600/MAX8601 are designed to charge a single-cell Li+ battery from a DC source voltage between 4.15V and 7V. The precharge current, charge current, and top-off threshold are programmable with RSETI. USB Charging (MAX8601) The MAX8601 contains a USB input that allows operation from either a DC source or a USB port.
PAGE 8
MAX8600/MAX8601 Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer Table 1. Fault Temperatures for Different Thermistors THERMISTOR BETA Resistance at +25°C Resistance at +50°C 3000 3250 3500 3750 10,000Ω 10,000Ω 10,000Ω 10,000Ω 4587.78Ω 4299.35Ω 4029.06Ω 3775.75Ω 25,140.55Ω 27,148.09Ω 29,315.94Ω 31,656.90Ω Nominal Hot Trip Temperature +55.14°C +52.60°C +50.46°C +48.63°C Nominal Cold Trip Temperature -3.24°C -1.26°C +0.46°C +1.
PAGE 9
Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer D1 GREEN LED R5 1kΩ R3, R4 100kΩ FLT DC AC ADAPTER C1 1μF CHARGE STATUS POK GND The MAX8600/MAX8601 operating input voltage range is 4.15V to 7V. The device survives input voltages up to 16V without damage to the IC. If the input voltage is greater than 7.5V (typ), the IC stops charging. An appropriate power supply must provide at least 4.
PAGE 10
MAX8600/MAX8601 Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer remote device. The MAX8601 can be configured to charge its battery at the highest current possible from the host port. Figure 4 shows the MAX8601 configured as a USB battery charger. A USEL input sets the maximum charging current from the USB input at 100mA or 500mA. Layout and Bypassing Connect the input capacitors as close to the device as possible.
PAGE 11
Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE CODE DOCUMENT NO. 14 TDFN-EP T1433-2 21-0137 6, 8, &10L, DFN THIN.
PAGE 12
MAX8600/MAX8601 Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer Package Information (continued) For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. 12 COMMON DIMENSIONS PACKAGE VARIATIONS SYMBOL MIN. MAX. PKG. CODE N D2 E2 e JEDEC SPEC b [(N/2)-1] x e A 0.70 0.80 T633-2 6 1.50±0.10 2.30±0.10 0.95 BSC MO229 / WEEA 0.40±0.05 1.90 REF D 2.90 3.10 T833-2 8 1.50±0.10 2.30±0.10 0.
PAGE 13
Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer REVISION NUMBER REVISION DATE 2 7/08 Corrected Absolute Maximum Rating 3 12/08 Corrected Absolute Maximum Ratings and made various updates DESCRIPTION PAGES CHANGED 2 1, 2, 3, 6, 7 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.