LTC7000/LTC7000-1
Fast 150V Protected
High Side NMOS Static Switch Driver
FEATURES
nn Wide Operating VIN: 3.5V to 135V (150V Abs Max)
nn 1Ω Pull-Down, 2.2Ω Pull-Up for Fast Turn-On and
Turn-Off Times with 35ns Propagation Delays
nn Internal Charge Pump for 100% Duty Cycle
nn Short-Circuit Protected
nn Adjustable Current Trip Threshold (LTC7000)
nn Current Monitor Output (LTC7000)
nn Automatic Restart Timer
nn Open-Drain Fault Flag
nn Adjustable Turn-On Slew Rate
nn Gate Driver Supply from 3.5V to 15V
nn Adjustable VIN Undervoltage and Overvoltage
Lockouts (LTC7000)
nn Adjustable Driver Supply VCC Undervoltage Lockout
nn Low Shutdown Current: 1µA
nn CMOS Compatible Input
nn Thermally Enhanced, High Voltage Capable 16-Lead
MSOP Packages
APPLICATIONS
nn Static Switch Driver
nn Load and Supply Switch Driver
nn Electronic Valve Driver
nn 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 thermally-
enhanced 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
All registered trademarks and trademarks are the property of their respective owners.
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
Turn-On Transient Waveform
VIN = 135V
VINP
2V/DIV
VLOAD
50V/DIV
20ns/DIV
7000 TA01b
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Rev. C
1
