Datasheet

6
LTC4221
4221fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
V
ON(RESET)
vs Temperature
V
ON(OFF)
vs V
CC1
V
ON(OFF)
vs Temperature
TEMPERATURE (°C)
–50
0.395
V
ON(RESET)
(V)
0.405
0.410
0.415
50
0.440
4221 G19
0.400
0
–25
75 100
25 125
0.425
0.420
0.430
0.435
V
CC1
= 5V
V
CC2
= 3.3V
RISING
FALLING
V
CC1
(V)
0
V
ON(OFF)
(V)
0.840
0.845
0.850
16
4221 G20
0.835
0.830
0.815
4
8
12
2
6
10
14
0.825
0.820
0.860
0.855
V
CC2
= 1V
T
A
= 25°C
RISING
FALLING
TEMPERATURE (°C)
–50
V
ON(OFF)
(V)
0.85
0.86
0.87
25 75
4221 G21
0.84
0.83
–25 0
50 100 125
0.82
0.81
V
CC1
= 5V
V
CC2
= 3.3V
RISING
FALLING
V
FB(UV)
vs V
CC1
V
FB(UV)
vs Temperature V
FB(OV)
vs V
CC1
V
CC1
(V)
0
V
FB(UV)
(V)
0.618
0.620
16
4221 G22
0.616
0.614
4
8
12
2
6
10
14
0.622
0.617
0.619
0.615
0.621
V
CC2
= 1V
T
A
= 25°C
RISING
FALLING
TEMPERATURE (°C)
–50
V
FB(UV)
(V)
0.623
0.622
0.621
0.620
0.619
0.618
0.617
0.616
0.615
0.614
0.613
0
50
75
4221 G23
–25
25
100
125
V
CC1
= 5V
V
CC2
= 3.3V
RISING
FALLING
V
CC1
(V)
0
V
FB(OV)
(V)
0.8210
0.8215
0.8220
12
4221 G24
0.8205
0.8200
48
214
610 16
0.8195
0.8190
0.8225
V
CC2
= 1V
T
A
= 25°C
V
GATE(OV)
vs Temperature V
ON(RESET)
vs V
CC1
ΔV
GATE2
(V
GATE2
– V
CC1
)
vs Temperature
TEMPERATURE (°C)
–50
ΔV
GATE2
(V)
12
14
16
25 75
4221 G16
10
8
–25 0
50 100 125
6
4
V
CC1
= 2.7V, V
CC2
= 1V
V
CC1
= 5V, V
CC2
= 3.3V
V
CC1
= 13.5V, V
CC2
= 13.5V
TEMPERATURE (°C)
–50
0.375
V
GATE(OV)
(V)
0.385
0.390
0.395
50
0.420
4221 G17
0.380
0
–25
75 100
25 125
0.405
0.400
0.410
0.415
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
TIMER = 0.5V
V
CC1
(V)
0
V
ON(RESET)
(V)
0.415
0.420
0.425
12
4221 G18
0.410
0.405
48
214
610 16
0.400
0.395
0.430
V
CC2
= 1V, T
A
= 25°C
FALLING
RISING