Analog Devices LTC7001 | Demoboard DC2708

Description

Demonstration circuit 2708A is a 135V, high side switch featuring the LTC®7001. The demo board is designed to switch a 5A output load from 0V up to 135V. This board offers a low 50ns (typical) propagation delay, fast switching times (<10ns) and 100% duty cycle operation.The LTC7001 is a fast high voltage high side N-channel MOSFET driver. An internal charge pump fully enhances an external N-channel MOSFET switch, allowing it to remain on indefinitely. A powerful gate driver can drive large gate capacitance MOSFETs with very short transition times, ideal for both high frequency switching and static switch applications. The LTC7001 operates over a 0V to 135V input supply range.The demo board includes input capacitors and an output diode to accommodate input and output supply inductance when switching loads. The switch can be controlled by providing an external signal on INPUT turret. The VCC input must be powered with an external power supply to provide power to the controller. Positions for RC delay network to control inrush current are also included.The LTC7001 data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with this demo manual for demo circuit 2708A. Proper board layout is essential for maximum thermal and electrical performance. See the data sheet sections for details. The LTC7001 is available in 10-lead MSOP package and three operating junction temperature grades, extended and industrial from –40°C to 125°C, a high temp automotive version from –40°C to 150°C and a military grade version from –55°C to 150°C.

Features

• Wide Operating VIN: Up to 135V (150V Abs Max)
• 1Ω Pull-Down, 2.2Ω Pull-Up for Fast Turn-On and Turn-Off Times with 35ns Propagation Delays
• Internal Charge Pump for 100% Duty Cycle
• Adjustable Turn-On Slew Rate
• Gate Driver Supply from 3.5V to 15V
• Adjustable VIN Overvoltage Lockout
• Adjustable Driver Supply VCC Undervoltage Lockout
• CMOS Compatible Input
• Thermally Enhanced, High Voltage Capable 10-Lead MSOP Package

Typical applications

• Electronic Valve Driver
• High Frequency High Side Gate Driver
• Static Switch Driver / Load and Supply Switch Driver

More information

• Datasheet
• IC product information