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LTC4440ES6-5#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P14
LTC4440-5
1
44405fb
For more information www.linear.com//LTC4440-5
Synchronous Phase-Modulated Full-Bridge Converter LTC4440-5 Driving a 1000pF Capacitive Load
Typical applicaTion
V
CC
INP
GND
BOOST
TG
TS
LTC4440-5
V
IN
36V TO 60V
V
CC
4V TO 15V
V
CC
INP
GND
BOOST
TG
TS
LTC4440-5
LTC3722-1
• •
4440 TA01
TG-TS
2V/DIV
INP
2V/DIV
50ns/DIV
V
CC
= BOOST-TS = 5V
4440-5 TA02
FeaTures DescripTion
High Speed, High Voltage,
High Side Gate Driver
The LTC
®
4440-5 is a high frequency high side N-channel
MOSFET gate driver that is designed to operate in appli-
cations with V
IN
voltages up to 60V. The LTC4440-5 can
also withstand and continue to function during 80V V
IN
transients. The powerful driver capability reduces switch-
ing losses in MOSFETs with high gate capacitances. The
L
TC4440-5’
s pull-up has a peak output current of 1.1A and
its pull-down has an output impedance of 1.85Ω.
The LTC4440-5 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 LTC4440-5 is optimized for driving (5V) logic level
FETs and contains an undervoltage lockout circuit that
disables the external MOSFET when activated.
The LTC4440-5 is available in the low profile (1mm)
SOT-23 or a thermally enhanced 8-lead MSOP package.
PARAMETER LTC4440-5 LTC4440A-5 LTC4440
Max Operating TS 60V 80V 80V
Absolute Max TS 80V 100V 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 60V
n
Rugged Architecture Tolerant of 80V 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
Low Profile (1mm) SOT-23 (ThinSOT™) and
Thermally Enhanced 8-Pin MSOP Packages
n
Telecommunications Power Systems
n
Distributed Power Architectures
n
Server Power Supplies
n
High Density Power Modules
n
General Purpose Low-Side Driver
L, LT, LTC, LTM, Linear Technology, the Linear logo and PolyPhase are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Protected by U.S. Patents, including 6677210.
LTC4440-5
2
44405fb
For more information www.linear.com/LTC4440-5
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 85V
BOOST Voltage (100ms) ............................ –0.3V to 95V
TS Voltage (Continuous) ............................... –5V to 70V
TS Voltage (100ms) ...................................... –5V to 80V
Peak Output Current < 1µs (TG) ..................................4A
Operating Ambient Temperature Range
(Note 2)
...............................................–40°C to 85°C
Junction Temperature (Note 3) ............................. 125°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 full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= V
BOOST
= 6V, V
TS
= GND = 0V, unless otherwise noted.
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
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4440EMS8E-5#PBF LTC4440EMS8E-5#TRPBF LTBRG 8-Lead Plastic MSOP –40°C to 85°C
LTC4440ES6-5#PBF LTC4440ES6-5#TRPBF LTBRF 6-Lead Plastic SOT-23 –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
1
2
3
4
INP
GND
V
CC
GND
8
7
6
5
TS
TG
BOOST
NC
TOP VIEW
9
MS8E PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 40°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
V
CC
1
GND 2
INP 3
6 BOOST
5 TG
4 TS
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC SOT-23
T
JMAX
= 125°C, θ
JA
= 230°C/W
pin conFiguraTion
LTC4440-5
3
44405fb
For more information www.linear.com//LTC4440-5
elecTrical characTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Signal (INP)
V
IH
High Input Threshold INP Ramping High
l
1.2 1.6 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
185 275 mV
I
PU
Peak Pull-Up Current
l
0.75 1.1 A
R
DS
Output Pull-Down Resistance
l
1.85 2.75 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 65 ns
t
PHL
Output High-Low Propagation Delay
l
33 65 ns
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= V
BOOST
= 6V, V
TS
= GND = 0V, unless otherwise noted.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC4440-5 is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
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)
Note 4: Failure to solder the exposed back side of the MS8E package to the
PC board will result in a thermal resistance much higher than 40°C/W.
Typical perForMance characTerisTics
V
CC
Supply Quiescent Current
vs Voltage
BOOST-TS
Supply Quiescent
Current vs Voltage
Output Low Voltage (V
OL
)
vs Supply Voltage
V
CC
SUPPLY VOLTAGE (V)
0
350
300
250
200
150
100
50
0
4440-5 G01
5
10
15
QUIESCENT CURRENT (µA)
INP = GND
INP = V
CC
BOOST-TS SUPPLY VOLTAGE (V)
0
QUIESCENT CURRENT (µA)
150
200
250
15
4440-5 G02
100
50
0
5 10
300
350
400
INP = V
CC
BOOST-TS SUPPLY VOLTAGE (V)
3
0
50
100
150
200
5
7 9 11
134
6
8 10 12 14
250
P1-P3P4-P6P7-P9P10-P12P13-P14

LTC4440ES6-5#TRPBF

Mfr. #:
Buy LTC4440ES6-5#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Gate Drivers Hi Speed, Hi V, Hi Side Gate Drvr
Lifecycle:
New from this manufacturer.
Delivery:
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