LTC4440ES6#TR Linear Technology, LTC4440ES6#TR Datasheet

IC DRIVER HIGHSIDE HS/HV SOT23-6

LTC4440ES6#TR

Manufacturer Part Number
LTC4440ES6#TR
Description
IC DRIVER HIGHSIDE HS/HV SOT23-6
Manufacturer
Linear Technology
Type
High Sider
Datasheet

Specifications of LTC4440ES6#TR

Input Type
Non-Inverting
Number Of Outputs
1
On-state Resistance
1.5 Ohm
Current - Output / Channel
2.4A
Current - Peak Output
4A
Voltage - Supply
8 V ~ 15 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-6
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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FEATURES
TYPICAL APPLICATIO
APPLICATIO S
100V PEAK TRANSIENT
Telecommunications Power Systems
Distributed Power Architectures
Server Power Supplies
High Density Power Modules
Wide Operating V
Rugged Architecture Tolerant of 100V V
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)
Thermally Enhanced 8-Pin MSOP Packages
36V TO 72V
(ABS MAX)
8V TO 15V
V
V
Synchronous Phase-Modulated Full-Bridge Converter
CC
IN
LTC3722-1
V
U
CC
IN
Range: Up to 80V
U
V
INP
GND
V
INP
GND
CC
CC
LTC4440
LTC4440
BOOST
BOOST
TM
TG
TG
TS
TS
and
IN
DESCRIPTIO
ThinSOT is a trademark of Linear Technology Corporation.
Protected by U.S. Patents, including 6677210.
The LTC
MOSFET gate driver that is designed to operate in applica-
tions with V
withstand and continue to function during 100V V
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.
High Speed, High Voltage
, LTC and LT are registered trademarks of Linear Technology Corporation.
4440 TA01
®
4440 is a high frequency high side N-channel
High Side Gate Driver
IN
voltages up to 80V. The LTC4440 can also
(TG – TS)
OUTPUT
2V/DIV
5V/DIV
INPUT
(INP)
U
LTC4440 Driving a 1000pF
Capacitive Load
10ns/DIV
LTC4440
IN
tran-
1
4440 F02
4440f

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LTC4440ES6#TR Summary of contents

Page 1

... 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. LTC4440 ...

Page 2

LTC4440 ABSOLUTE MAXIMUM Supply Voltage V ....................................................... – 0.3V to 15V CC BOOST – TS ......................................... – 0.3V to 15V INP Voltage ............................................... – 0.3V to 15V BOOST Voltage (Continuous) ................... – 0.3V to 95V BOOST Voltage ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Output Gate Driver (TG) V High Output Voltage OH V Low Output Voltage OL I Peak Pull-Up Current PU R Output Pull-Down Resistance DS Switching Timing t Output Rise ...

Page 4

LTC4440 W U TYPICAL PERFOR A CE CHARACTERISTICS Output High Voltage ( Supply Voltage 25° –1mA –10mA –100mA ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Input Threshold Hysteresis vs Temperature 500 480 460 440 420 400 380 360 340 8V 320 300 –60 ...

Page 6

LTC4440 CTIO S Exposed Pad MS8E Package INP (Pin 1): Input Signal. TTL/CMOS compatible input referenced to GND (Pin 2). GND (Pins 2, 4): Chip Ground. V (Pin 3): Chip Supply. This pin powers the ...

Page 7

U U APPLICATIO S I FOR ATIO Overview The LTC4440 receives a ground-referenced, low voltage digital input signal to drive a high side N-channel power MOSFET whose drain can float up to 100V above ground, eliminating the need for a ...

Page 8

LTC4440 U U APPLICATIO S I FOR ATIO Power Dissipation To ensure proper operation and long-term reliability, the LTC4440 must not operate beyond its maximum tempera- ture rating. Package junction temperature can be calcu- lated by ...

Page 9

U TYPICAL APPLICATIO S LTC4440 4440f 9 ...

Page 10

LTC4440 U TYPICAL APPLICATIO S 10 4440f ...

Page 11

... DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U ...

Page 12

... D4, D5: MMBD914 L1: COILCRAFT DO1813P-561HC L2: SUMIDA CDEP105-0R2NC-50 L3: COILCRAFT DO1608C-105 T1: PULSE PA0801.005 T2: PULSE P8207 T3: PULSE PA0785 = 200µ 28µs ON OFF = 95µ 45µs ON OFF ≤ 13.2V IN ≤ 28V IN LT/TP 1004 1K • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2003 V OUT MMBT3904 1k 10V MMBZ5240B 4440 TA04 4440f ...

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