Document
LTC7000/LTC7000-1
Fast 150V Protected High Side NMOS Static Switch Driver
FEATURES
n Wide Operating VIN: 3.5V to 135V (150V Abs Max) n 1Ω Pull-Down, 2.2Ω Pull-Up for Fast Turn-On and
Turn-Off Times with 35ns Propagation Delays n Internal Charge Pump for 100% Duty Cycle n Short-Circuit Protected n Adjustable Current Trip Threshold (LTC7000) n Current Monitor Output (LTC7000) n Automatic Restart Timer n Open-Drain Fault Flag n Adjustable Turn-On Slew Rate n Gate Driver Supply from 3.5V to 15V n Adjustable VIN Undervoltage and Overvoltage
Lockouts (LTC7000) n Adjustable Driver Supply VCC Undervoltage Lockout n Low Shutdown Current: 1µA n CMOS Compatible Input n Thermally Enhanced, High Voltage Capable 16-Lead
MSOP Packages n AEC-Q100 Qualified for Automotive Applications
APPLICATIONS
n Static Switch Driver n Load and Supply Switch Driver n Electronic Valve Driver n High Frequency High Side Gate Driver
DESCRIPTION
The LTC®7000/LTC7000-1 is a fast high side N-channel MOSFET gate driver that operates from input voltages up to 135V. 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 LTC7000/LTC7000-1 automatically retries.
The LTC7000/LTC7000-1 is available in the thermallyenhanced 16-lead MSOP packages.
Package
High Voltage Pin Spacing RUN/OVLO/ISET/IMON Pins
LTC7000
16-Lead MSOP MSE16
0.157mm
Yes
LTC7000-1
16-Lead MSOP MSE16(12)
0.657mm
No
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TYPICAL APPLICATION
High Side Switch with 100% Duty Cycle and Overcurrent Protection
VIN 3.5V TO 135V
1µF
VIN VCC
100k
SNS+ LTC7000-1
SNS–
FAULT
TGUP
1nF OFF ON
TIMER INP
TGDN BST
VCCUV GND
TS
100Ω
0.007Ω
0.1µF
7000 TA01a
LOAD 3.5V TO 135V 3A CONTINUOUS MAX
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Turn-On Transient Waveform
VIN = 135V VINP 2V/DIV
VLOAD 50V/DIV
20ns/DIV
7000 TA01b
Rev. E
1
LTC7000/LTC7000-1
TABLE OF CONTENTS
Features............................................................................................................................. 1 Applications........................................................................................................................ 1 Typical Application ................................................................................................................ 1 Description......................................................................................................................... 1 Absolute Maximum Ratings...................................................................................................... 3 Pin Configuration.................................................................................................................. 3 Order Information.................................................................................................................. 3 Electrical Characteristics......................................................................................................... 5 Typical Performance Characteristics........................................................................................... 7 Pin Functions....................................................................................................................... 9 Block Diagram.....................................................................................................................10 Timing Diagram...................................................................................................................11 Operation.......................................................................................................................... 11 Applications Information........................................................................................................13 Package Description.............................................................................................................27 Revision History..................................................................................................................29 Typical Application...............................................................................................................30 Related Parts......................................................................................................................30
Rev. E
2
For more information www.analog.com
LTC7000/LTC7000-1
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltages VIN..