Datasheet

7
LTC4221
4221fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
V
FILTER(TH)
vs Temperature
I
TMR(UP1)
vs Temperature
TEMPERATURE (°C)
–50
V
FILTER(TH)
(V)
1.246
1.244
1.242
1.240
1.238
1.236
1.234
1.232
1.230
1.228
1.226
1.224
0
50
75
4221 G28
–25
25
100
125
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
V
GATE1
= 0.2V
TEMPERATURE (°C)
–50
I
TMR(UP1)
(μA)
–1.8
–1.7
–1.6
25 75
4221 G29
–1.9
–2.0
–25 0
50 100 125
–2.1
–2.2
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
V
TMR
= 0.25V
I
TMR(UP2)
vs Temperature
TEMPERATURE (°C)
–50
I
TMR(UP2)
(μA)
–17.0
–17.5
–18.0
–18.5
–19.0
–19.5
–20.0
–20.5
–21.0
–21.5
–22.0
0
50
75
4221 G30
–25
25
100
125
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
V
TMR
= 0.25V
I
TMR(FSTDN)
vs Temperature
V
TMR(H)
vs Temperature
TEMPERATURE (°C)
–50 –25
0
I
TMR(FSTDN)
(mA)
10
25
0
50
75
4221 G31
5
20
15
25
100
125
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
V
TMR
= 1.5V
TEMPERATURE (°C)
–50
V
TMR(H)
(V)
1.240
1.238
1.236
1.234
1.232
1.230
1.228
1.226
1.224
1.222
1.220
0
50
75
4221 G32
–25
25
100
125
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
V
TMR(L)
vs Temperature
TEMPERATURE (°C)
–50
V
TMR(L)
(V)
0.403
25
4221 G33
0.400
0.398
–25 0 50
0.397
0.396
0.404
0.402
0.401
0.399
75 100 125
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
V
FB(OV)
vs Temperature
I
FILTER(UP)
vs Temperature
TEMPERATURE (°C)
–50
V
FB(OV)
(V)
0.825
0.824
0.823
0.822
0.821
0.820
0.819
0.818
0.817
0.816
0.815
0
50
75
4221 G25
–25
25
100
125
V
CC1
= 5V
V
CC2
= 3.3V
TEMPERATURE (°C)
–50
I
FILTER(UP)
(μA)
–98
–93
–88
25 75
4221 G26
–103
–108
–25 0
50 100 125
–113
–118
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
V
FILTER
= 1V
I
FILTER(DN)
vs Temperature
TEMPERATURE (°C)
–50
1.85
1.90
2.00
25 75
4221 G27
1.80
1.75
–25 0
50 100 125
1.70
1.65
1.95
I
FILTER(DN)
(μA)
V
CC1
= 2.7V
V
CC1
= 5V
V
CC1
= 13.5V
V
CC2
= 1V
V
FILTER
= 1V