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MAX8662ETM+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX8662ETM+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 37 page Power-Management ICs for Single-Cell, Li+ Battery-Operated Devices ________________________________________________________________ Maxim Integrated Products 1 Ordering Information 19-0732; Rev 1; 12/08 ♦ ♦ ♦ ♦ ♦ General Description The MAX8662/MAX8663 power-management ICs (PMICs) are efficient, compact devices suitable for smart cellular phones, PDAs, Internet appliances, and other portable devices. They integrate two synchronous buck regulators, a boost regulator driving two to seven white LEDs, four low-dropout linear regulators (LDOs), and a linear charger for a single-cell Li-ion (Li+) battery. Maxim’s Smart Power Selector™ (SPS) safely distrib- utes power between an external power source (AC adapter, auto adapter, or USB source), battery, and the system load. When system load peaks exceed the external source capability, the battery supplies supple- mental current. When system load requirements are small, residual power from the external power source charges the battery. A thermal-limiting circuit limits bat- tery-charge rate and external power-source current to prevent overheating. The PMIC also allows the system to operate with no battery or a discharged battery. The MAX8662 is available in a 6mm x 6mm, 48-pin thin QFN package, while the MAX8663, without the LED driver, is available in a 5mm x 5mm, 40-pin thin QFN package. Features Applications + Denotes a lead(Pb)-free/RoHS-compliant package. * EP = Exposed pad. PART TEMP RANGE PIN-PACKAGE MAX8662ETM+ -40°C to +85°C 48 Thin QFN-EP* 6mm x 6mm x 0.8mm MAX8663ETL+ -40°C to +85°C 40 Thin QFN-EP* 5mm x 5mm x 0.8mm Two 95%-Efficient 1MHz Buck Regulators Main Regulator: 0.98V to VIN at 1200mA Core Regulator: 0.98V to VIN at 900mA 1MHz Boost WLED Driver Drives Up to 7 White LEDs at 30mA (max) PWM and Analog Dimming Control Four Low-Dropout Linear Regulators 1.7V to 5.5V Input Range 15µA Quiescent Current Single-Cell Li+ Charger Adapter or USB Input Thermal-Overload Protection Smart Power Selector (SPS) AC Adapter/USB or Battery Source Charger-Current and System-Load Sharing Smart Phones and PDAs MP3 and Portable Media Players Palmtop and Wireless Handhelds TOP VIEW MAX8662 THIN QFN (6mm x 6mm) 13 14 15 16 17 18 19 20 21 22 23 24 THM ISET CT REF GND OUT4 IN45 OUT5 EN4 EN5 PWM FB1 48 47 46 45 44 43 42 41 40 39 38 37 1 2 3 4567 89 10 11 12 POK PSET SL2 SL1 VL OUT7 IN67 OUT6 PG3 LX3 EN7 EN6 36 35 34 33 32 31 30 29 28 27 26 25 Pin Configurations OUT1 0.98V TO VIN / 1.2A OUT2 0.98V TO VIN / 0.9A OUT3 30mA WLED DC SYS OUT7 EN1 500mA 150mA 300mA 150mA Li+ BATTERY DC/USB INPUT TO SYSTEM POWER BAT LX1 LX2 LX3 (MAX8662 ONLY) OUT6 OUT5 OUT4 CS TO SYS EN2 EN3 EN4 EN5 EN6 EN7 PWR OK CHARGE STATUS CHARGE ENABLE SL1 SL2 OUT4–OUT7 VOLTAGE SELECT MAX8662 MAX8663 POK CHG CEN Typical Operating Circuit Smart Power Selector is a trademark of Maxim Integrated Products, Inc. Pin Configurations continued at end of data sheet. EVALUATION KIT AVAILABLE 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. |
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