Analog Devices ADP1878 Evaluation Board ADP1878-1.0-EVALZ ADP1878-1.0-EVALZ データシート
製品コード
ADP1878-1.0-EVALZ
ADP1878/ADP1879
Data
Sheet
Rev. B | Page 16 of 40
Figure 58. Output Drivers and SW Node Waveforms
Figure 59. High-Side Driver Rising and Low-Side Falling Edge Waveforms (C
IN
=
4.3 nF (High-/Low-Side MOSFET), Q
TOTAL
= 27 nC (V
GS
= 4.4 V (Q1), V
GS
= 5 V (Q3))
Figure 60. High-Side Driver Falling and Low-Side Rising Edge Waveforms (C
IN
=
4.3 nF (High-/Low-Side MOSFET), Q
TOTAL
= 27 nC (V
GS
= 4.4 V (Q1), V
GS
= 5 V (Q3))
Figure 61. Transconductance vs. Temperature
Figure 62. Transconductance vs. V
REG
Figure 63. Quiescent Current vs. V
REG
2
CH2 5V
CH3 5V
MATH 2V 40ns
MATH 2V 40ns
CH4 2V
M40ns
A CH2 4.20V
T
29.0%
3
M
4
HIGH SIDE
HS MINUS
SW
SW
SW NODE
LOW SIDE
T
A
= 25°C
09
44
1-
0
58
2
CH2 5V
CH3 5V
MATH 2V 40ns
MATH 2V 40ns
CH4 2V
M40ns
A CH2 4.20V
T
29.0%
3
M
4
HIGH SIDE
HS MINUS
SW
SW
SW NODE
LOW SIDE
16ns (
t
f
,DRVL
)
25ns (
t
r
,DRVH
)
22ns (
t
pdh
DRVH
)
T
A
= 25°C
09
44
1-
0
59
2
CH2 5V
CH3 5V
MATH 2V 20ns
MATH 2V 20ns
CH4 2V
M20ns
A CH2 4.20V
T
39.2%
3
M
4
HIGH SIDE
HS MINUS
SW
SW
SW NODE
LOW SIDE
18ns (
t
r
,DRVL
)
24ns (
t
pdh
,DRVL
)
11ns (
t
f
,DRVH
)
T
A
= 25°C
09
44
1-
0
60
570
550
530
510
490
470
450
430
–40
–20
120
100
80
60
40
20
0
T
RANS
CO
N
DUCT
AN
CE
(
µ
S
)
TEMPERATURE (°C)
V
REG
= 5.5V
V
REG
= 3.6V
V
REG
= 2.7V
09
44
1-
0
61
680
330
380
430
480
530
580
630
2.7
3.0
5.4
4.8
5.1
4.5
4.2
3.9
3.6
3.3
T
RA
NS
CO
NDU
CT
ANC
E
(
µ
S
)
V
REG
(V)
+125°C
+25°C
–40°C
+25°C
–40°C
09
44
1-
06
2
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
2.7
5.5
5.1
4.7
4.3
–40°C
+25°C
+125°C
3.9
3.5
3.1
Q
U
IES
C
EN
T
C
U
R
R
EN
T
(
m
A
)
V
REG
(V)
09
44
1-
06
3