Adjustable output low dropout voltage regulators for automotive applications
February 22, 2012 // Christoph Hammerschmidt
ON Semiconductor has announced two new low dropout (LDO) voltage regulator ICs. Building on the company's power management portfolio for automotive applications, the new devices are designed for use in audio and infotainment systems, instrument cluster, navigation and satellite radio.
The NCV47700 and NCV47701 LDOs feature an output diagnostic pin CSO that can be used to detect open and shorted loads. Using a resistor connected to the CSO provides an adjustable output current level between 10 mA and 350 mA with ±10% accuracy. Tying the ADJ pin to ground configures the NCV47700 and NCV47701 to be a current limited high-side switch.
High peak input voltage tolerance and reverse input voltage protection, as well as overcurrent and overtemperature protection functions are all included to safeguard against the effects of the harsh operating conditions typical of automotive applications. An integrated current sense feature negates the need to implement a discrete solution that would use more board space and raise the total component count.
Adjustable output voltage versions of the devices are available; these cover the 5 V to 20 V range, with ±6% accuracy for the NCV47700 and ±3% accuracy for the NCV47701. Both new LDO voltage regulator ICs have a junction operating temperature range of -40 ⁰C to +150 ⁰C, that matches or exceeds the specifications stipulated by the automotive industry.
For more information, visit http://www.onsemi.com.
Belgium spin-off takes photonic IC design to the mainstream
September 16, 2014
Imec's investment arm Fidimec and the Flemish spin-off investment fund SOFI I are investing EUR 340k in Founded last June, ...
Tablets to provide growth over flat PC market
Android One debuts in India, ignites next 5 billion battle
ZF swallows TRW Automotive
Is rapid charging batteries really so damaging?
Canadian startup mutualizes iBeacon deployment costs
September 15, 2014
Bluetooth Smart-enabled applications crop up everyday, from personalized remote sensors to proximity detection for home automation, ...
U.S. foundry agrees to help expand China's MEMS ecosystem
Moore's law has no end in sight
OLED panel smashes luminous efficacy and lifetime records
- Flexible and Low Power Driving of Solenoid Coils
- How to Protect & Monetize Android Apps
- Power Modules: The New Super Power
- Flexible Performance for Network Security Appliances
InterviewCEO interview: AMS' Laney on driving a sensor-driven business
Kirk Laney, CEO of Austrian mixed-signal chip and sensor company AMS, wants to leverage the opportunity that technology affords to create new markets for sensors and sensor interfaces.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Trinamic Motion Control is offering you to win one of four TMCM-1043 development kits for its highly integrated, NEMA 17-compatible TMCM-1043 stepDancer stepper motor module.
Offering designers an easy-to-use PC-based GUI that allows one-click modification of motor drive current, micro-stepping and other key parameters, the intuitive kits are custom designed and developed for...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.