Datasheet

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