Datasheet

5
LT4220
4220f
GATE
+
Pull-Down Current vs
GATE
+
Voltage
TYPICAL PERFOR A CE CHARACTERISTICS
UW
GATE
+
Drive vs V
CC
V
CC
(V)
3069121518
8
7
6
5
4
4220 G04
GATE
+
DRIVE (V
GATE
+
– V
CC
) (V)
V
EE
= –5V
V
EE
= –2.7V
T
A
= 25°C
V
CC
(V)
3069121518
75
70
65
60
55
50
4220 G11
TIMER PULL-UP CURRENT (µA)
T
A
= 25°C
V
EE
(V)
3069121518
10
9
8
7
6
5
4
4220 G05
GATE
–
DRIVE (V
GATE
–
– V
EE
) (V)
V
CC
= 5V
T
A
= 25°C
GATE
+
VOLTAGE (V
GATE
+
– V
CC
) (V)
0
GATE
+
PULL-UP CURRENT (µA)
6
4220 G06
24
16
14
12
10
8
6
4
2
0
1357
GATE
+
VOLTAGE (V)
0
GATE
+
PULL-DOWN CURRENT (mA)
12
4220 G07
48
60
50
40
30
20
10
0
900
800
700
600
500
400
300
200
100
0
2 6 10 14
GATE
–
VOLTAGE (V
GATE
–
– V
EE
) (V)
0
GATE
–
PULL-DOWN CURRENT (mA)
7
4220 G09
24
70
60
50
40
30
20
10
0
1
3658
V
CC
= 5V
V
EE
= –5V
ON
–
= 0V
FB
–
= –2V
T
A
= 25°C
GATE
–
VOLTAGE (V
GATE
–
– V
EE
) (V)
0
GATE
–
PULL-UP CURRENT (µA)
4220 G08
48
12
10
8
6
4
2
0
2106
V
CC
= 5V
V
EE
= –5V
SENSE
+
= V
CC
SENSE
–
= V
EE
T
A
= 25°C
V
OL
(mV)
SINK CURRENT (mA)
4220 G10
02
4
6810
V
CC
= 5V
V
EE
= –5V
T
A
= 25°C
PWRGD
FAULT
TEMPERATURE (°C)
–40
45.0
44.5
44.0
43.5
43.0
42.5
42.0
41.5
41.0
20 60
4220 G12
–20 0
40 80
HYSTERESIS VOLTAGE (mV)
V
CC
= 5V
V
EE
= –5V
V
SENSE
+
= V
CC
V
SENSE
–
= V
EE
T
A
= 25°C
V
CC
= 5V
V
EE
= –5V
ON
+
= 0V
FB
+
= 2V
T
A
= 25°C
V
CC
= 2.7V
PWRGD and FAULT V
OL
vs
Sink Current
GATE
–
Pull-Up Current vs
GATE
–
Voltage
GATE
+
Pull-Up Current vs
GATE
+
Voltage
GATE
–
Drive vs V
EE
GATE
–
Pull-Down Current vs
GATE
–
Voltage
TIMER Pull-Up Current vs V
CC
ON
+
, ON
–
and FB
+
, FB
–
Hysteresis vs Temperature