industry news
Subscribe Now

150V Fast High Side Protected N-Channel MOSFET Driver Provides 100% Duty Cycle Capability

MILPITAS, CA & NORWOOD, MA – June 7, 2017 – Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC7000/-1, a high speed, high side N-channel MOSFET driver that operates up to a 150V supply voltage. Its internal charge pump fully enhances an external N-channel MOSFET switch, allowing it to remain on indefinitely. The LTC7000/-1’s powerful 1Ω gate driver can drive large gate capacitance MOSFETs with very short transition times, ideal for both high frequency switching and static switch applications.

The LTC7000/-1 operates over a 3.5V to 135V, 150VPK input supply range with a 3.5V to 15V bias voltage range. It detects an overcurrent condition by monitoring the voltage across an external sense resistor placed in series with the drain of the external MOSFET. When the LTC7000/-1 senses that the switch current has exceeded a preset level, a fault flag is asserted and the switch is turned off for a period of time set by an external timing capacitor. After a predetermined time period, the LTC7000/-1 automatically retries.

The LTC7000/-1 is designed to receive a ground referenced, low voltage digital input signal and quickly drive a high side N-channel power MOSFET whose drain can be as high as 150V above ground. The fast 13ns rise and fall times, when driving a 1,000pF load, minimize switching losses. The LTC7000 is the full featured device and has additional features over the LTC7000-1, including enable, overvoltage lockout, adjustable current limit and current monitoring.

The LTC7000 is available in the MSOP-16 package and the LTC7000-1 is available in the MSOP-16 (12) with four leads removed for high voltage spacing. Three operating junction temperature grades are available, with extended and industrial versions from –40 to 125°C, high temp automotive version from –40°C to 150°C and a military grade from –55°C to 150°C. The 1,000-piece price starts at $2.75 each. For more information, visit www.linear.com/product/LTC7000.

Summary of Features: LTC7000/-1

Wide VIN Operating Range: 3.5V to 135V (150V Abs Max)
100% Duty Cycle Capability
1Ω Pull-Down, 2Ω Pull-Up for Fast Turn-On and Turn-Off Times
Short-Circuit Protected
Automatic Restart Timer
Open-Drain Fault Flag
Integrated Bootstrap Diode
Adjustable Turn-On Slew Rate
Bias Supply from 3.5V to 15V
Adjustable Current Limit (LTC7000)
Current Monitor Output (LTC7000)
Adjustable Input Undervoltage and Overvoltage Lockout (LTC7000)

Analog Devices just got more Powerful. On March 10, Analog Devices acquired Linear Technology, creating the premier high performance analog company. More info at http://lt.linear.com/07c

About Analog Devices

Analog Devices (NASDAQ: ADI) is the leading global high-performance analog technology company dedicated to solving the toughest engineering challenges. We enable our customers to interpret the world around us by intelligently bridging the physical and digital with unmatched technologies that sense, measure, power, connect and interpret. Visit http://www.analog.com.

Leave a Reply

featured blogs
Aug 17, 2018
If you read my post Who Put the Silicon in Silicon Valley? then you know my conclusion: Let's go with Shockley. He invented the transistor, came here, hired a bunch of young PhDs, and sent them out (by accident, not design) to create the companies, that created the compa...
Aug 16, 2018
All of the little details were squared up when the check-plots came out for "final" review. Those same preliminary files were shared with the fab and assembly units and, of course, the vendors have c...
Aug 15, 2018
VITA 57.4 FMC+ Standard As an ANSI/VITA member, Samtec supports the release of the new ANSI/VITA 57.4-2018 FPGA Mezzanine Card Plus Standard. VITA 57.4, also referred to as FMC+, expands upon the I/O capabilities defined in ANSI/VITA 57.1 FMC by adding two new connectors that...
Aug 14, 2018
I worked at HP in Ft. Collins, Colorado back in the 1970s. It was a heady experience. We were designing and building early, pre-PC desktop computers and we owned the market back then. The division I worked for eventually migrated to 32-bit workstations, chased from the deskto...
Jul 30, 2018
As discussed in part 1 of this blog post, each instance of an Achronix Speedcore eFPGA in your ASIC or SoC design must be configured after the system powers up because Speedcore eFPGAs employ nonvolatile SRAM technology to store its configuration bits. The time required to pr...