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LTC4442EMS8E-1#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P14
LTC4442/LTC4442-1
4
4442fb
TYPICAL PERFORMANCE CHARACTERISTICS
Input Thresholds vs
V
LOGIC
Supply Voltage
Input Thresholds for V
LOGIC
= 3.3V
vs Temperature
BG or TG Input Threshold Hysteresis
vs V
LOGIC
Supply Voltage
Quiescent Supply Current vs
Supply Voltage
Quiescent Supply Current vs
Temperature
V
LOGIC
Undervoltage Lockout
Thresholds vs Temperature
V
LOGIC
SUPPLY (V )
34
0
INPUT THRESHOLD (V)
2
5
5
7
8
4442 G01
1
4
3
6
9
10
V
IH(TG)
V
IL(TG)
V
IL(BG)
V
IH(BG)
TEMPERATURE (°C)
0
INPUT THRESHOLD (V)
1.0
2.0
3.0
0.5
1.5
2.5
–10 20 50 80
4442 G02
110–40
V
IH(TG)
V
LOGIC
= 3.3V
V
IL(TG)
V
IL(BG)
V
IH(BG)
Input Thresholds for V
LOGIC
≥ 5V
vs Temperature
TEMPERATURE (°C)
INPUT THRESHOLD (V)
3
4
5
4442 G03
2
1
0
–10–40 110
20
50
80
V
IH(TG)
V
LOGIC
≥ 5V
V
IL(TG)
V
IL(BG)
V
IH(BG)
V
LOGIC
SUPPLY (V)
34
0
BG OR TG INPUT THRESHOLD HYSTERESIS (V)
0.2
0.5
5
7
8
4442 G04
0.1
0.4
0.3
6
9
10
BG or TG Input Threshold
Hysteresis vs Temperature
TEMPERATURE (°C)
BG OR TG INPUT THRESHOLD HYSTERSIS (V)
0.25
0.30
0.35
4442 G05
0.15
0
–40 –10 20 50 80
110
0.40
0.20
0.10
0.05
V
LOGIC
= 5V
V
LOGIC
= 3.3V
SUPPLY VOLTAGE (V)
3
0
SUPPLY CURRENT (mA)
0.1
0.3
0.4
0.5
1.0
0.7
5
7
8
4442 G06
0.2
0.8
0.9
0.6
4
6
9
10
IN FLOATING
I
VLOGIC
I
BOOST
I
VCC
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
0.6
0.8
4442 G07
0.4
0.2
0.5
0.7
0.9
1.0
0.3
0.1
0
–10–40 110
20
50
80
IN FLOATING
V
LOGIC
= 5V
V
CC
= BOOST-TS = 7V
I
VLOGIC
I
BOOST
I
VCC
TEMPERATURE (°C)
V
LOGIC
UVLO THRESHOLD (V)
2.8
2.9
3.0
4442 G08
2.7
2.6
2.5
–10–40 110
20
50
80
RISING THRESHOLD
FALLING THRESHOLD
V
CC
Undervoltage Lockout
Thresholds vs Temperature
TEMPERATURE (°C)
V
CC
UVLO THRESHOLD (V)
5.0
6.0
7.0
4442 G09
4.0
3.0
4.5
5.5
6.5
3.5
2.5
2.0
–10–40 110
20
50
80
LTC4442-1 RISING THRESHOLD
LTC4442 RISING THRESHOLD
LTC4442-1 FALLING THRESHOLD
LTC4442 FALLING THRESHOLD
LTC4442/LTC4442-1
5
4442fb
TYPICAL PERFORMANCE CHARACTERISTICS
Undervoltage Lockout Threshold
Hysteresis vs Temperature
Switching Supply Current vs
Input Frequency
Propagation Delay vs V
LOGIC
Supply Voltage
Output High Voltage vs
V
CC
Supply Voltage
Rise and Fall Time vs
V
CC
Supply Voltage
TEMPERATURE (°C)
UVLO THRESHOLD HYSTERESIS (mV)
600
800
1000
4442 G10
400
200
500
700
900
300
100
0
–10–40 110
20
50
80
LTC4442-1
V
CC
UVLO
LTC4442
V
CC
UVLO
V
LOGIC
UVLO
FREQUENCY (Hz)
0
SUPPLY CURRENT (mA)
2
3
800k
4442 G11
1
0
200k
400k
600k
1M
4
I
VCC
I
BOOST
I
VLOGIC
NO LOAD
V
LOGIC
= 5V
V
CC
= BOOST-TS = 7V
Switching Supply Current vs
Load Capacitance
LOAD CAPACITANCE (nF)
0.1 0.3 3
0
SUPPLY CURRENT (mA)
1
10
100
11030
4442 G12
V
LOGIC
= 5V
V
CC
= BOOST-TS = 7V
I
CC
OR I
BOOST
f
IN
= 500kHz
I
CC
OR I
BOOST
f
IN
= 100kHz
I
LOGIC
f
IN
= 500kHz
V
LOGIC
SUPPLY VOLTAGE (V)
3
PROPAGATION DELAY (ns)
35
6
4442 G13
20
10
45 7
5
0
40
30
25
15
8910
NO LOAD
V
CC
= BOOST-TS = 7V
t
PLH(TG)
t
PHL(TG)
t
PLH(BG)
t
PHL(BG)
Propagation Delay vs
V
CC
Supply Voltage
V
CC
SUPPLY VOLTAGE (V)
4
35
30
25
20
15
10
5
0
79
4442 G14
56
810
PROPAGATION DELAY (ns)
NO LOAD
V
LOGIC
= 5V
BOOST-TS = V
CC
t
PLH(TG)
t
PHL(TG)
t
PLH(BG)
t
PHL(BG)
Propagation Delay vs Temperature
TEMPERATURE (°C)
PROPAGATION DELAY (ns)
25
30
35
4442 G15
15
0
–40 –10 20 50 80
110
40
20
10
5
NO LOAD
V
LOGIC
= 5V
V
CC
= BOOST-TS = 7V
t
PLH(TG)
t
PHL(BG)
t
PHL(TG)
t
PLH(BG)
V
CC
SUPPLY VOLTAGE (V)
4
0
BG OR TG HIGH OUTPUT VOLTAGE (V)
2
4
6
5
6
78
4442 G16
9
8
10
1
3
5
7
9
10
BOOST-TS = V
CC
–100mA
–1mA
–10mA
V
CC
SUPPLY VOLTAGE (V)
4
0
RISE/FALL TIME (ns)
5
10
15
20
567
t
r(BG)
8
4442 G17
910
t
r(TG)
t
f(TG)
t
f(BG)
C
LOAD
= 3.3nF
BOOST-TS = V
CC
Rise and Fall Time vs
Load Capacitance
LOAD CAPACITANCE (nF)
13
1
RISE/FALL TIME (ns)
10
100
10 30
4442 G18
V
CC
= BOOST-TS = 7V
t
r(BG)
t
r(TG)
t
f(TG)
t
f(BG)
LTC4442/LTC4442-1
6
4442fb
PIN FUNCTIONS
TG (Pin 1): High Side Gate Driver Output (Top Gate). This
pin swings between TS and BOOST.
TS (Pin 2): High Side MOSFET Source Connection (Top
Source).
BG (Pin 3): Low Side Gate Driver Output (Bottom Gate).
This pin swings between V
CC
and GND.
GND (Pin 4, Exposed Pad Pin 9): Chip Ground. The exposed
pad must be soldered to the PCB ground for electrical
contact and for rated thermal performance.
IN (Pin 5): Input Signal. Input referenced to an internal
supply powered by V
LOGIC
(Pin 6) and referenced to GND
(Pin 4). If this pin is fl oating, an internal resistive divider
triggers a shutdown mode in which both BG (Pin 3) and
TG (Pin 1) are pulled low. Trace capacitance on this pin
should be minimized to keep the shutdown time low.
V
LOGIC
(Pin 6): Logic Supply. This pin powers the input
buffer and logic. Connect this pin to the power supply
of the controller that is driving IN (Pin 5) to match input
thresholds or to V
CC
(Pin 7) to simplify PCB routing.
V
CC
(Pin 7): Output Driver Supply. This pin powers the
low side gate driver output directly and the high side
gate driver output through an external diode connected
between this pin and BOOST (Pin 8). A low ESR ceramic
bypass capacitor should be tied between this pin and
GND (Pin 4).
BOOST (Pin 8): High Side Bootstrapped Supply. An ex-
ternal capacitor should be tied between this pin and TS
(Pin 2). Normally, a bootstrap diode is connected between
V
CC
(Pin 7) and this pin. Voltage swing at this pin is from
V
CC
– V
D
to V
IN
+ V
CC
– V
D
, where V
D
is the forward volt-
age drop of the bootstrap diode.
P1-P3P4-P6P7-P9P10-P12P13-P14

LTC4442EMS8E-1#TRPBF

Mfr. #:
Buy LTC4442EMS8E-1#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Gate Drivers Hi Speed Sync N-Ch MOSFET Drvrs
Lifecycle:
New from this manufacturer.
Delivery:
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