Datasheet

Data Sheet ADM1275
Rev. D | Page 15 of 48
0
5
10
15
20
25
30
0 5 10 15 20 25
I
GATEUP
(µA)
V
GATE
(V)
V
CC
= 12V
V
CC
= 2.95V
08931-016
Figure 14. Gate Pull-Up Current (I
GATEUP
) vs. Gate Voltage (V
GATE
)
–40
–35
–30
–25
–20
–15
–10
–5
0
I
GATEUP
(µA)
TEMPERATURE (°C)
V
CC
= 12V
08931-015
–40
–20 0 20 40
60 80
Figure 15. Gate Pull-Up Current (I
GATEUP
) vs. Temperature
0
2
4
6
8
10
12
14
16
2
20
ΔV
GATE
(V)
V
CC
(V)
+85°C
+25°C
–40°C
08931-017
4 6 8 10 12 14 16 18
Figure 16. Gate Drive Voltage (ΔV
GATE
) vs. Supply Voltage (V
CC
), No Load
0
2
4
6
8
10
12
14
16
Δ
V
GATE
(V)
V
CC
(V)
08931-018
2
4
6 8
10
12 14
16 18 20
+25°C
+85°C
–40°C
Figure 17. Gate Drive Voltage (ΔV
GATE
) vs. Supply Voltage (V
CC
), 5 µA Load
0
2
4
6
8
10
12
14
16
–40
–20 0
20
40
60
ΔV
GATE
(V)
TEMPERATURE (
°
C)
V
CC
= 12V
V
CC
= 20V
V
CC
= 2.95V
08931-019
80
Figure 18. Gate Drive Voltage (ΔV
GATE
) vs. Temperature, No Load
–20
–18
–16
–14
–12
–10
–8
–6
–4
–2
0
–40
I
SS
PULL-UP (µA)
TEMPERATURE (°C)
V
CC
= 12V
08931-020
–20 0
20 40 60 80
Figure 19. Soft Start Pull-Up Current (I
SS
) vs. Temperature