Summary of LTC7003 – Fast 60V Protected High Side NMOS Static Switch Driver
The LTC7003 is a high-side N-channel MOSFET gate driver supporting 3.5V to 60V input with an internal charge pump for 100% duty cycle operation. It features adjustable current trip thresholds, automatic restart timers, and short-circuit protection. The device offers fast turn-on/off times suitable for high-frequency switching or static loads, housed in a thermally enhanced 16-lead MSOP package.
Parts used in the LTC7003 Project:
- LTC7003 Gate Driver IC
- N-channel MOSFET switch
- External timing capacitor
- Thermally enhanced 16-lead MSOP package
- Internal charge pump
- Current monitor output
- Open-drain fault flag
- Adjustable VIN undervoltage/overvoltage lockouts
- Adjustable VCC undervoltage lockout
- Low shutdown current circuitry (1µA)
Features
- Wide Operating VIN: 3.5V to 60V
- 1Ω Pull-Down, 2.2Ω Pull-Up for Fast Turn-On andTurn-Off Times with 35ns Propagation Delays
- Internal Charge Pump for 100% Duty Cycle
- Short-Circuit Protected
- Adjustable Current Trip Threshold
- Current Monitor Output
- Automatic Restart Timer
- Open-Drain Fault Flag
- Adjustable Turn-On Slew Rate
- Gate Driver Supply from 3.5V to 15V
- Adjustable VIN Undervoltage and OvervoltageLockouts
- Adjustable Driver Supply VCC Undervoltage Lockout
- Low Shutdown Current: 1µA
- CMOS Compatible Input
- Thermally Enhanced, High Voltage Capable 16-Lead
- MSOP Package
Typical Application
Description
The LTC®7003 is a fast high side N-channel MOSFET gate driver that operates from input voltages up to 60V. It contains an internal charge pump that fully enhances an external N-channel MOSFET switch, allowing it to remain on indefinitely.
Its powerful driver can easily drive large gate capacitances with very short transition times, making it well suited for both high frequency switching applications or static switch applications that require a fast turn-on and/or turn-off time.
When an internal comparator senses that the switch current has exceeded a preset level, a fault flag is asserted and the switch is turned off after a period of time set by an external timing capacitor. After a cooldown period, the LTC7003 automatically retries.
The LTC7003 is available in the thermally-enhanced 16-lead MSOP package.
Applications
- Static Switch Driver
- Load and Supply Switch Driver
- Electronic Valve Driver
- High Frequency High Side Gate Driver
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Read More: LTC7003 – Fast 60V Protected High Side NMOS Static Switch Driver
- What is the primary function of the LTC7003?
The LTC7003 is a fast high side N-channel MOSFET gate driver that operates from input voltages up to 60V. - How does the device handle overcurrent conditions?
When an internal comparator senses excess switch current, it asserts a fault flag, turns off the switch after a set time, and automatically retries after a cooldown period. - Can the LTC7003 operate at 100% duty cycle?
Yes, it contains an internal charge pump that fully enhances an external N-channel MOSFET switch, allowing it to remain on indefinitely. - What is the operating voltage range for the driver supply?
The gate driver supply operates from 3.5V to 15V. - Is the turn-on slew rate fixed or adjustable?
The turn-on slew rate is adjustable. - Does the device support automatic restarting after a fault?
Yes, after a cooldown period following a fault event, the LTC7003 automatically retries. - What package type is the LTC7003 available in?
The device is available in a thermally enhanced, high voltage capable 16-lead MSOP package. - What is the shutdown current specification?
The device features a low shutdown current of 1µA.
