Datasheet

LTC4449
2
4449fa
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
V
LOGIC
...................................................... –0.3V to 7V
V
CC
........................................................... –0.3V to 7V
BOOST – TS ............................................. –0.3V to 7V
BOOST Voltage .......................................... –0.3V to 42V
TS ................................................................. –5V to 38V
IN Voltage .................................................... –0.3V to 7V
Driver Output TG (with Respect to TS) ......... –0.3V to 7V
Driver Output BG .......................................... –0.3V to 7V
Operating Junction Temperature Range
(Notes 2, 3) ............................................–40°C to 125°C
Storage Temperature Range ...................–65°C to 150°C
(Note 1)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Logic Supply (V
LOGIC
)
V
LOGIC
Operating Range 3 6.5 V
I
VLOGIC
DC Supply Current IN = Floating 730 900 µA
UVLO Undervoltage Lockout Threshold V
LOGIC
Rising
V
LOGIC
Falling
Hysteresis
l
l
2.5
2.4
2.75
2.65
100
3
2.9
V
V
mV
Gate Driver Supply (V
CC
)
V
CC
Operating Range 4 6.5 V
I
VCC
DC Supply Current IN = Floating 300 400 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
I
BOOST
DC Supply Current IN = Floating 300 400 µA
The l denotes the specifi cations which apply over the full operating junction
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= V
LOGIC
= V
BOOST
= 5V, V
TS
= GND = 0V, unless otherwise noted. (Note 2)
PIN CONFIGURATION
TOP VIEW
BOOST
V
CC
V
LOGIC
IN
TG
TS
BG
GND
DCB PACKAGE
8-LEAD (2mm s 3mm) PLASTIC DFN
9
3
4
2
1
6
5
7
8
θ
JA
= 64°C/W, θ
JC
= 10.6°C/W
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
LTC4449EDCB#PBF LTC4449EDCB#TRPBF LFKC
8-Lead (2mm × 3mm) Plastic DFN
–40°C to 125°C
LTC4449IDCB#PBF LTC4449IDCB#TRPBF LFKC
8-Lead (2mm × 3mm) Plastic DFN
–40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *Temperature grades are identifi ed by a label on the shipping container.
Consult LTC Marketing for information on lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/