Mobile Phones

wireless_a3-2Competitive pressures have driven mobile phone manufacturers to achieve superior power management results – best battery cycle life, standby performance, shortest charge time, smallest size and minimal weight. But mobile phones have high power demands when transmitting data. During transmission, pulse power trains cause battery voltage to sag and efficiency to drop, ultimately shortening the the battery’s useful life.

CAP-XX supercapacitors optimize battery utilization by buffering power demand and smooth fluctuating loads, thus increasing mobile talk time and battery longevity. These devices operate in extreme temperature conditions, and can be charged/discharged thousands of times without degradation. CAP-XX supercapacitors also enable a simple GSM phone solution with excellent talk-time using standard AAA or AA alkaline batteries enabling new applications such as 911 phones where cost and long shelf life are critical.

Related Documents
Application Note No. 1001
Current-Limit and Low-Voltage Lockout Circuit for Portable Devices (PDF, 120KB)

Application Note No. 1002
Start-Up Current-Limiters for Supercapacitors in PDAs and Other Portable Devices (Rev 2.1) (PDF, 312KB)

Application Brief No. 1004
Battery Run-Time Extension and Low Temperature Boost (PDF, 161KB)

Application Brief No. 1005
Electrolytic and Tantalum Capacitor Replacement (PDF, 75KB)

Application Brief No. 1006
Pulse Load Applications (PDF, 183KB)

Application Brief No 1013
Effect of Supercapacitor Distance from a Load (PDF, 152KB)