OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LTC4440AMPMS8E-5#TRPBF

P1-P3P4-P6P7-P9P10-P12
LTC4440A-5
1
4440a5f
For more information www.linear.com/LTC4440A-5
Synchronous Phase-Modulated Full-Bridge Converter LTC4440A-5 Driving a 1000pF Capacitive Load
Typical applicaTion
V
CC
INP
GND
BOOST
TG
TS
LTC4440A-5
V
IN
36V TO 80V
V
CC
4V TO 15V
V
CC
INP
GND
BOOST
TG
TS
LTC4440A-5
LTC3722-1
• •
4440A5 TA01
FeaTures DescripTion
High Speed, High Voltage,
High Side Gate Driver
The LTC
®
4440A-5 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 LTC4440A-5 can
also withstand and continue to function during 100V V
IN
transients. The powerful driver capability reduces switch-
ing losses in MOSFETs with high gate capacitances. The
L
TC4440A-5’
s pull-up has a peak output current of 1.1A
and its pull-down has an output impedance of 1.85Ω.
The LTC4440A-5 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 95V
above ground.
The LTC4440A-5 is optimized for driving (5V) logic level
FETs and contains an undervoltage lockout circuit that
disables the external MOSFET when activated.
The LTC4440A-5 is available in the thermally enhanced
8-lead MSOP package.
PARAMETER LTC4440A-5 LTC4440-5 LTC4440
Max Operating TS 80V 60V 80V
Absolute Max TS 100V 80V 100V
MOSFET Gate Drive 4V to 15V 4V to 15V 8V to 15V
V
CC
UV
+
3.2V 3.2V 6.3V
V
CC
UV
–
3.04V 3.04V 6.0V
applicaTions
n
Wide Operating V
IN
Range: Up to 80V
n
Rugged Architecture Tolerant of 100V V
IN
Transients
n
Powerful 1.85Ω Driver Pull-Down (with 6V Supply)
n
Powerful 1.1A Peak Current Driver Pull-Up
(with 6V Supply)
n
7ns Fall Time Driving 1000pF Load
n
10ns Rise Time Driving 1000pF Load
n
Drives Standard Threshold MOSFETs
n
TTL/CMOS Compatible Inputs with Hysteresis
n
Input Thresholds are Independent of Supply
n
Undervoltage Lockout
n
Thermally Enhanced 8-Lead MSOP Package
n
Automotive Power Systems
n
Telecommunications Power Systems
n
Distributed Power Architectures
n
Server Power Supplies
n
High Density Power Modules
n
General Purpose Low or High Side Driver
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Direct
Flux Limit is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Protected by U.S. Patents, including 6677210.
TG-TS
2V/DIV
INP
2V/DIV
50ns/DIV
V
CC
= BOOST-TS = 5V
4440A5 TA02
LTC4440A-5
2
4440a5f
For more information www.linear.com/LTC4440A-5
absoluTe MaxiMuM raTings
(Note 1)
Supply Voltage
V
CC
........................................................ –0.3V to 15V
BOOST – TS
........................................... –0.3V to 15V
INP Voltage ................................................ –0.3V to 15V
BOOST Voltage (Continuous) ..................... –0.3V to 95V
BOOST Voltage (100ms) ...........................–0.3V to 115V
TS Voltage (Continuous) ............................... –5V to 80V
TS Voltage (100ms) .................................... –5V to 100V
Operating Junction Temperature Range (Notes 2, 3)
LTC4440AI-5 ..................................... –40°C to 125°C
LTC4440AH-5 .................................... –40°C to 150°C
LTC4440AMP-5 ................................. –55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C
elecTrical characTerisTics
The ● denotes specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= V
BOOST
= 6V, V
TS
= GND = 0V, unless otherwise noted.
(Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Main Supply (V
CC
)
I
VCC
DC Supply Current
Normal Operation
UVLO
INP = 0V
V
CC
< UVLO Threshold (Falling) – 0.1V
200
18
325
40
µA
µA
UVLO Undervoltage Lockout Threshold V
CC
Rising
V
CC
Falling
Hysteresis
l
l
2.75
2.60
3.20
3.04
160
3.65
3.50
V
V
mV
Bootstrapped Supply (BOOST – TS)
I
BOOST
DC Supply Current
Normal Operation
INP = 0V
INP = 6V
0
310
450
µA
µA
pin conFiguraTion
1
2
3
4
INP
GND
V
CC
GND
8
7
6
5
TS
TG
BOOST
NC
TOP VIEW
9
GND
MS8E PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C, θ
JA
= 40°C/W (NOTE 4)
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4440AIMS8E-5#PBF LTC4440AIMS8E-5#TRPBF LTGKP 8-Lead Plastic MSOP –40°C to 125°C
LTC4440AHMS8E-5#PBF LTC4440AHMS8E-5#TRPBF LTGKP 8-Lead Plastic MSOP –40°C to 150°C
LTC4440AMPMS8E-5#PBF LTC4440AMPMS8E-5#TRPBF LTGKP 8-Lead Plastic MSOP –55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
LTC4440A-5
3
4440a5f
For more information www.linear.com/LTC4440A-5
elecTrical characTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Signal (INP)
V
IH
High Input Threshold INP Ramping High
l
1.2 1.55 2 V
V
IL
Low Input Threshold INP Ramping Low
l
0.8 1.25 1.6 V
V
IH
– V
IL
Input Voltage Hysteresis 0.350 V
I
INP
Input Pin Bias Current ±0.01 ±2 µA
Output Gate Driver (TG)
V
OH
High Output Voltage I
TG
= –10mA, V
OH
= V
BOOST
– V
TG
0.7 V
V
OL
Low Output Voltage I
TG
= 100mA
l
185 400 mV
I
PU
Peak Pull-Up Current
l
0.7 1.1 A
R
DS
Output Pull-Down Resistance
l
1.85 4 Ω
Switching Timing
t
r
Output Rise Time 10% – 90%, C
L
= 1nF
10% – 90%, C
L
= 10nF
10
100
ns
ns
t
f
Output Fall Time 10% – 90%, C
L
= 1nF
10% – 90%, C
L
= 10nF
7
70
ns
ns
t
PLH
Output Low-High Propagation Delay
l
35 80 ns
t
PHL
Output High-Low Propagation Delay
l
33 80 ns
The ● denotes specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= V
BOOST
= 6V, V
TS
= GND = 0V, unless otherwise noted.
(Note 2)
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC4440A-5 is tested under pulsed load conditions such
that T
J
≈ T
A
. The LTC4440AI-5 is guaranteed over the –40°C to 125°C
operating junction temperature range, The LTC4440AH-5 is guaranteed
over the –40°C to 150°C operating junction temperature range and
the LTC4440AMP-5 is tested and guaranteed over the –55°C to 150°C
operating junction temperature range.
High junction temperatures degrade operating lifetimes; operating lifetime
is derated to junction temperatures greater than 125°C. Note that the
maximum ambient temperature consistent with these specifications is
determined by specific operating conditions in conjunction with board
layout, the rated package thermal impedance and other environment
factors.
Note 3: T
J
is calculated from the ambient temperature T
A
and power
dissipation PD according to the following formula:
T
J
= T
A
+ (PD • θ
JA
°C/W)
Continuous operation above the specified absolute operating junction
temperature may impair device reliability or permanently damage the
device.
Note 4: Failure to solder the exposed pad of the MS8E package to the PC
board will result in a thermal resistance much higher than 40°C/W.
P1-P3P4-P6P7-P9P10-P12

LTC4440AMPMS8E-5#TRPBF

Mfr. #:
Buy LTC4440AMPMS8E-5#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Gate Drivers High & Low-Side Driver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet