LTC4440,LTC4440_09,LTC4440EMS8E,LTC4440ES6

Part No.:
LTC4440,LTC4440_09,LTC4440EMS8E,LTC4440ES6
Download:
Download
Description:
High Speed, High Voltage High Side Gate Driver
File Size:
208 K
Page:
12 Pages
Logo:
Maker:
LINER [ LINEAR TECHNOLOGY ]
PCB Prototype

July 16, 2018:

LTC6240CS5-TRPBF

LTM4605

LTM4627

LXMG1813-12-62S

M1540P-R10851-HD

M27C202-150N1TR

M27C202-70B3TR

M27C4002-20XN1X

M27C405-90K6TR

M27V402-180K4TR

M295V100-B90XM6R

M295V100-T90XM1TR

PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1
LTC4440
High Speed, High Voltage
High Side Gate Driver
FEATURES
DESCRIPTIO
Wide Operating V
IN
Range: Up to 80V
Rugged Architecture Tolerant of 100V V
IN
Transients
Powerful 1.5Ω Driver Pull-Down
Powerful 2.4A Peak Current Driver Pull-Up
7ns Fall Time Driving 1000pF Load
10ns Rise Time Driving 1000pF Load
Drives Standard Threshold MOSFETs
TTL/CMOS Compatible Inputs with Hysteresis
Input Thresholds are Independent of Supply
Undervoltage Lockout
Low Profile (1mm) SOT-23 (ThinSOT)
TM
and
Thermally Enhanced 8-Pin MSOP Packages
The LTC
®
4440 is a high frequency high side N-channel
MOSFET gate driver that is designed to operate in applica-
tions with V
IN
voltages up to 80V. The LTC4440 can also
withstand and continue to function during 100V V
IN
tran-
sients. The powerful driver capability reduces switching
losses in MOSFETs with high gate capacitances. The
LTC4440’s pull-up has a peak output current of 2.4A and
its pull-down has an output impedance of 1.5Ω.
The LTC4440 features supply independent TTL/CMOS
compatible input thresholds with 350mV of hysteresis.
The input logic signal is internally level-shifted to the
bootstrapped supply, which may function at up to 115V
above ground.
The LTC4440 contains both high side and low side under-
voltage lockout circuits that disable the external MOSFET
when activated.
The LTC4440 is available in the low profile (1mm) SOT-23
and thermally enhanced 8-lead MSOP packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
Protected by U.S. Patents, including 6677210.
APPLICATIO S
Telecommunications Power Systems
Distributed Power Architectures
Server Power Supplies
High Density Power Modules
TYPICAL APPLICATIO
V
IN
36V TO 72V
100V PEAK TRANSIENT
(ABS MAX)
V
CC
8V TO 15V
Synchronous Phase-Modulated Full-Bridge Converter
LTC4440
V
CC
BOOST
INP
GND
TG
TS
INPUT
(INP)
2V/DIV
LTC4440
V
CC
LTC3722-1
V
CC
BOOST
INP
GND
TG
TS
4440 TA01
OUTPUT
(TG – TS)
5V/DIV
10ns/DIV
4440 F02
U
LTC4440 Driving a 1000pF
Capacitive Load
4440f
U
U
1