PG-SSOP14 AEC-Q100 4277EL SP000438718

Home > Design:)Link > Issue 1/2009 > Power > TLF 4277 linear regulator for active antenna systems TLF 4277

TLF 4277 supply IC for active antenna systems with advanced diagnostic and monitoring functionality - . Page 1 of 2 Home > Design:)Link > Issue 1/2009 > Power > TLF 4277 linear regulator for active antenna systems TLF 4277 supply IC for active antenna systems with advanced diagnostic and monitoring functionality The TLF 4277 is the ideal companion IC to supply active antennas in car infotainment applications. Its adjustable output voltage makes it ideal for FM/AM, DAB, XM as well as SIRIUS tuner systems. The integrated current monitor and the protection monitor functionality ease the implementation of system analysis in the infotainment system. The device is protected against failure situations, such as short-circuit of the output against GND or battery voltage, overtemperature and overcurrent. These conditions and the current in normal operation are indicated at the multifunctional CSO output pin. The TLF 4277 is a monolithic integrated low dropout voltage regulator for loads up to 200 mA. The variable output voltage ranges from 5 V to 12 V for input voltages up to 40 V. Key features Integrated current monitor Adjustable current limitation Variable output voltage Overvoltage detection Very low current consumption Very low dropout voltage Reverse polarity protection Short-circuit protection Overtemperature shutdown Temperature range: -40 °C Tj 150 °C Green product (RoHS-compliant) in PG-SSOP14 PG-SSOP14 EP package in SO8 housing AEC-Q100 AEC-Q100 qualified Applications Active antenna supply systems TLF 4277 block diagram 7/9/2009 TLF 4277 supply IC for active antenna systems with advanced diagnostic and monitoring functionality - . Page 2 of 2 Order number TLF 4277EL 4277EL SP000438718 SP000438718 Ask Infineon! International Toll Free: 0(0)800 951 951 951 Direct Access: +49 89 234 65555 Infineon is happy to help you: Infineon Service Center Where to buy Please use our location finder to get in contact with your nearest Infineon distributor or sales office Find a location Related Links Linear Voltage Regulator © 1999 - 2009 Infineon Technologies AG - Usage of this website is subject to our Usage Terms - Imprint - Contact - Privacy Policy 7/9/2009