MAX8662/MAX8663 19-0732 Rev 2 12/10 Power-Management ICs for Single-Cell, Li+ Battery-Operated Devices General Description Features The MAX8662/MAX8663 power-management ICs Two 95%-Efficient 1MHz Buck Regulators (PMICs) are efficient, compact devices suitable for Main Regulator: 0.98V to V at 1200mA IN smart cellular phones, PDAs, Internet appliances, and Core Regulator: 0.98V to V at 900mA IN other portable devices. They integrate two synchronous 1MHz Boost WLED Driver buck regulators, a boost regulator driving two to seven Drives Up to 7 White LEDs at 30mA (max) white LEDs, four low-dropout linear regulators (LDOs), PWM and Analog Dimming Control and a linear charger for a single-cell Li-ion (Li+) battery. Four Low-Dropout Linear Regulators 1.7V to 5.5V Input Range Maxims Smart Power Selector (SPS) safely distrib- 15A Quiescent Current utes power between an external power source (AC adapter, auto adapter, or USB source), battery, and the Single-Cell Li+ Charger system load. When system load peaks exceed the Adapter or USB Input Thermal-Overload Protection external source capability, the battery supplies supple- mental current. When system load requirements are Smart Power Selector (SPS) small, residual power from the external power source AC Adapter/USB or Battery Source charges the battery. A thermal-limiting circuit limits bat- Charger-Current and System-Load Sharing tery-charge rate and external power-source current to prevent overheating. The PMIC also allows the system Ordering Information to operate with no battery or a discharged battery. PART TEMP RANGE PIN-PACKAGE The MAX8662 is available in a 6mm x 6mm, 48-pin TQFN 48 TQFN-EP* package, while the MAX8663, without the LED driver, is MAX8662ETM+ -40C to +85C 6mm x 6mm x 0.8mm available in a 5mm x 5mm, 40-pin TQFN package. 40 TQFN-EP* MAX8663ETL+ -40C to +85C Applications 5mm x 5mm x 0.8mm +Denotes a lead(Pb)-free/RoHS-compliant package. Smart Phones and PDAs *EP = Exposed pad. MP3 and Portable Media Players Palmtop and Wireless Handhelds Typical Operating Circuit Pin Configurations TOP VIEW DC/USB TO SYSTEM DC SYS INPUT POWER 35 34 33 32 31 30 29 28 27 25 36 26 BAT Li+ PWR OK POK BATTERY EN6 37 24 FB1 CHARGE CHG EN7 38 23 PWM MAX8662 STATUS OUT1 MAX8663 LX1 39 22 EN5 CHARGE 0.98V TO V / 1.2A LX3 IN CEN ENABLE OUT2 21 EN4 PG3 40 LX2 0.98V TO V / 0.9A EN1 IN 20 OUT5 OUT6 41 LX3 TO SYS EN2 IN45 IN67 42 19 MAX8662 OUT3 OUT7 43 18 OUT4 EN3 (MAX8662 ONLY) 30mA VL 44 17 GND EN4 WLED SL1 45 16 REF EN5 CS SL2 46 15 CT EN6 EP PSET 47 14 ISET 500mA OUT4 EN7 48 13 THM 150mA POK OUT5 OUT4OUT7 SL1 300mA OUT6 1 2 3 4567 89 10 11 12 VOLTAGE 150mA OUT7 SELECT SL2 TQFN (6mm x 6mm) Smart Power Selector is a trademark of Maxim Integrated Pin Configurations continued at end of data sheet. Products, Inc. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE PEN1 EN2 PG2 PEN2 LX2 EN3 PV2 DC1 DC2 FB2 SYS1 CC3 SYS2 CS BAT1 OVP BAT2 PV1 BRT LX1 CHG PG1 EN1 CENPower-Management ICs for Single-Cell, Li+ Battery-Operated Devices ABSOLUTE MAXIMUM RATINGS LX3 to GND ............................................................-0.3V to +33V LX Continuous Current........................................................1.5A DC to GND..............................................................-0.3V to +9V Continuous Power Dissipation (T = +70C) A BAT , CEN, CHG, EN , PEN , POK, PV , PWM, 40-Pin 5mm x 5mm TQFN SYS , LX1, CS, LX2 to GND.................................-0.3V to +6V (derate 35.7mW/C above +70C) VL to GND ................................................................-0.3V to +4V (multilayer board).......................................................2857mW BRT, CC3, FB , IN45, IN67, OVP, REF, 48-Pin 6mm x 6mm TQFN SL to GND ...........................................-0.3V to (V + 0.3V) (derate 37mW/C above +70C) (multilayer board)...2963mW SYS CT, ISET, PSET, THM to GND .....................-0.3V to (V + 0.3V) Operating Temperature Range ..........................-40C to +85C VL OUT4, OUT5 to GND................................-0.3V to (V + 0.3V) Junction Temperature Range ............................-40C to +125C IN45 OUT6, OUT7 to GND................................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +150C IN67 PG to GND...........................................................-0.3V to +0.3V Lead Temperature (soldering, 10s) .................................+300C BAT1 + BAT2 Continuous Current...........................................3A Soldering Temperature (reflow) .......................................+260C SYS1 + SYS2 Continuous Current (2 pins) ..............................3A Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (Input Limiter and Battery Charger) (V = 5V, V = 4V, V = 0V, V = 5V, R = 3k, R = 3.15k, C = 0.068F, T = -40C to +85C, unless otherwise DC BAT CEN PEN PSET ISET CT A noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS INPUT LIMITER DC Operating Range V (Note 2) 4.1 8.0 V DC DC Undervoltage Threshold V V rising, 500mV hysteresis 3.9 4.0 4.1 V DC L DC DC Overvoltage Threshold V V rising, 100mV hysteresis 6.6 6.9 7.2 V DC H DC I = I = 0mA, V = 0V 1.5 SYS BAT CEN DC Supply Current mA I = I = 0mA, V = 5V 0.9 SYS BAT CEN V = 5V, V = 5V, V = V = 0V (USB DC CEN PEN1 PEN2 DC Shutdown Current 110 180 A suspend mode) DC-to-SYS Dropout R V = 5V, I = 400mA, V = 5V 0.1 0.2 DC SYS DC SYS CEN On-Resistance DC-to-BAT Dropout When V regulation and charging stops, V SYS DC V 20 50 85 mV DR DC BAT Threshold falling, 150mV hysteresis VL Voltage V I = 0 to 10mA 3.1 3.3 3.5 V VL VL SYS Regulation Voltage V V = 5.8V, I = 1mA, V = 5V 5.2 5.3 5.4 V SYS REG DC SYS CEN V = 5V, V = 5V, PEN1 PEN2 1800 2000 2200 R 1.5k PSET = V = 5V, V = 5V, PEN1 PEN2 900 1000 1100 R = 3k PSET V = 5V, V = 5V, PEN1 PEN2 DC Input Current Limit I V = 5V, V = 4.0V 450 500 550 mA DC LIM DC SYS R = 6k PSET V = 0V, V = 5V PEN1 PEN2 450 475 500 (500mA USB mode) V = V = 0V PEN1 PEN2 80 90 100 (100mA USB mode) PSET Resistance Range R Guaranteed by SYS current limit 1.5 6.0 k PSET Input Lim i ter S oft-S tart T i m e T Current-limit ramp time 1.5 ms S S D C S Y S 2 MAX8662/MAX8663