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 Temperature Range (Note 2).... –40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range................... –65°C to 150°C
DDMA PACKAGE
12-LEAD (3mm
´
3mm) PLASTIC DFN
θ
JA
= 43°C/W,
θ
JC
= 3°C/W
EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC4447EDD#PBF
LTC4447IDD#PBF
TAPE AND REEL
LTC4447EDD#TRPBF
LTC4447IDD#TRPBF
PART MARKING*
LDHD
LDHD
PACKAGE DESCRIPTION
12-Lead (3mm × 3mm) Plastic DFN
12-Lead (3mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for information on 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/
ELECTRICAL CHARACTERISTICS
SYMBOL
V
LOGIC
I
VLOGIC
UVLO
PARAMETER
Operating Range
DC Supply Current
Undervoltage Lockout Threshold
Logic Supply (V
LOGIC
)
The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= V
LOGIC
= 5V, V
TS
= GND = 0V, unless otherwise noted.
CONDITIONS
MIN
3
IN = Floating
V
LOGIC
Rising
V
LOGIC
Falling
Hysteresis
●
●
TYP
MAX
6.5
UNITS
V
μA
V
V
mV
V
μA
V
V
mV
V
V
730
2.5
2.4
2.75
2.65
100
900
3
2.9
Gate Driver Supply (V
CC
)
V
CC
I
VCC
UVLO
Operating Range
DC Supply Current
Undervoltage Lockout Threshold
IN = Floating
V
CC
Rising
V
CC
Falling
Hysteresis
I
D
= 10mA
I
D
= 100mA
●
●
4
600
2.75
2.60
3.20
3.04
160
0.38
0.48
6.5
800
3.65
3.50
V
D
Schottky Diode Forward Voltage
4447f
2
LTC4447
ELECTRICAL CHARACTERISTICS
SYMBOL
Input Signal (IN)
V
IH(TG)
V
IL(TG)
V
IH(BG)
V
IL(BG)
I
IN(SD)
TG Turn-On Input Threshold
TG Turn-Off Input Threshold
BG Turn-On Input Threshold
BG Turn-Off Input Theshold
Maximum Current Into or Out of IN in
Shutdown Mode
TG High Output Voltage
TG Low Output Voltage
TG Peak Pull-Up Current
TG Peak Pull-Down Current
BG High Output Voltage
BG Low Output Voltage
BG Peak Pull-Up Current
BG Peak Pull-Down Current
BG Low to TG High Propagation Delay
IN Low toTG Low Propagation Delay
TG Low to BG High Propagation Delay
IN High to BG Low Propagation Delay
TG Output Risetime
TG Output Falltime
BG Output Risetime
BG Output Falltime
10% to 90%, C
L
= 3nF
10% to 90%, C
L
= 3nF
10% to 90%, C
L
= 3nF
10% to 90%, C
L
= 3nF
I
BG
= –100mA, V
OH(BG)
= V
CC
– V
BG
I
BG
= 100mA
●
●
The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= V
LOGIC
= 5V, V
TS
= GND = 0V, unless otherwise noted.
PARAMETER
CONDITIONS
V
LOGIC
≥ 5V, IN Rising
V
LOGIC
= 3.3V, IN Rising
V
LOGIC
≥ 5V, IN Falling
V
LOGIC
= 3.3V, IN Falling
V
LOGIC
≥ 5V, IN Falling
V
LOGIC
= 3.3V, IN Falling
V
LOGIC
≥ 5V, IN Rising
V
LOGIC
= 3.3V, IN Rising
V
LOGIC
≥ 5V, IN Floating
V
LOGIC
= 3.3V, IN Floating
I
TG
= –100mA, V
OH(TG)
= V
BOOST
– V
TG
I
TG
= 100mA, V
OL(TG)
= V
TG
– V
TS
●
●
●
●
●
●
●
●
●
●
MIN
3
1.9
2.75
1.8
0.8
0.8
1.05
0.9
150
75
TYP
3.5
2.2
3.25
2.09
1.25
1.1
1.5
1.21
300
150
140
80
MAX
4
2.6
3.75
2.5
1.6
1.4
1.85
1.5
UNITS
V
V
V
V
V
V
V
V
μA
μA
mV
mV
A
A
mV
mV
A
A
ns
ns
ns
ns
ns
ns
ns
ns
High Side Gate Driver Output (TG)
V
OH(TG)
V
OL(TG)
I
PU(TG)
I
PD(TG)
V
OH(BG)
V
OL(BG)
I
PU(BG)
I
PD(BG)
Switching Time
t
PLH(TG)
t
PHL(TG)
t
PLH(BG)
t
PHL(BG)
t
r(TG)
t
f(TG)
t
r(BG)
t
f(BG)
14
13
13
11
8
7
7
4
2
1.5
3.2
2.4
100
100
Low Side Gate Driver Output (BG)
2
3
3.2
4.5
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 LTC4447I is guaranteed to meet specifications from –40°C
to 85°C. The LTC4447E is guaranteed to meet specifications from 0°C
to 85°C with specifications over the –40°C to 85°C temperature range
assured by design, characterization and correlation with statistical
process controls.
T
J
is calculated from the ambient temperature T
A
and power dissipation
P
D
according to the following formula:
T
J
= T
A
+ (PD • 43°C/W)
Note 3:
This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is
active. Continuous operation above the specified maximum operating
junction temperature may impair device reliability.
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