24SW
24 Channel MOSFET Driver
LDX_IN
SS_CMD_X
LDX_OUT
1 of 24 Switches
Memory
Logic Diagram
F
EATURES
:
•
•
•
•
•
24 independently switchable power FETs
Low equivalent on resistance (200 m
Ω
typ)
2A switching current per channel
No derating required to 90
°
C
Total dose hardness: depending upon space mission in
D
ESCRIPTION
:
Maxwell Technologies 24SW multi-chip module (MCM)
24 channel MOSFET driver uses Maxwell Technologies’
patented radiation-hardened R
AD
-P
AK
® MCM packaging
technology. The 24SW is a radiation hardened MOSFET
driver for space applications.
The 24SW incorporates twenty-four independent p-
channel MOSFETs, along with interface components,
that can switch up to 2A per channel. The R
DS-ON
of the
MOSFET is typically less than 200m
Ω.
Maxwell Technologies' patented R
AD
-P
AK
® packaging
technology incorporates radiation shielding in the micro-
circuit package. It eliminates the need for box shielding
while improving the TID performance in most space
environments. This product is available with screening
up to Maxwell Technologies self-defined Class K.
R
AD
-P
AK
®
• Package: 176-pin quad flat pack
01.10.05 Rev 2
All data sheets are subject to change without notice
1
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
©2005 Maxwell Technologies.
All rights reserved.
24 Channel MOSFET Driver
24SW
T
ABLE
1. 24SW P
INOUT
D
ESCRIPTION
P
IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
N
AME
Pkg-Gnd
TP1B
TP7D
TP1D
TP8D
TP2D
TP7E
TP1E
TP8E
SS_CMD_5
SS_CMD_4
SS_CMD_3
TP2E
SS_CMD_2
SS_CMD_1
TP2B
SS_CMD_0
TP38A
TP46A
TP38C
TP2C
TP2A
VDD
TP38B
GND
VSS
TP38D
TP44D
SS_CMD_12
TP37D
SS_CMD_13
SS_CMD_14
Switch 13 Control Input
Switch 14 Control Input
01.10.05 Rev 2
F
UNCTION
Case Ground
N
OTES
This pin is for grounding the case(lid)
Memory
Switch 5 Control Input
Switch 4 Control Input
Switch 3 Control Input
Switch 2 Control Input
Switch 1 Control Input
Switch 0 Control Input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
+15V Power Supply
Analog Ground
-15V Power Supply
Switch 12 Control Input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
All data sheets are subject to change without notice
2
©2005 Maxwell Technologies.
All rights reserved.
24 Channel MOSFET Driver
T
ABLE
1. 24SW P
INOUT
D
ESCRIPTION
P
IN
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
N
AME
TP43D
SS_CMD_15
SS_CMD_16
SS_CMD_17
TP44C
TP44A
TP44B
TP37C
TP43E
TP37E
TP44E
TP38E
LD14_OUT
LD14_IN
PKG_GND
LD15_OUT
LD15_IN
TP37A
LD12_OUT
LD12_IN
TP37B
LD18_OUT
LD18_IN
TP43A
LD13_OUT
LD13_IN
TP9A
TP3E
TP4E
TP10E
LD17_OUT
LD17_IN
TP10D
LD19_OUT
LD19_IN
TP4D
LD16_OUT
Switch 16 Low Side
01.10.05 Rev 2
24SW
F
UNCTION
N
OTES
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
Switch 15 Control Input
Switch 16 Control Input
Switch 17 Control Input
Switch 14 Low Side
Switch 14 High Side
Case Ground
Switch 15 Low Side
Switch 15 High Side
Switch 12 Low Side
Switch 12 High Side
Switch 18 Low Side
Switch 18 High Side
Switch 13 Low Side
Switch 13 High Side
FET Drain
FET Source
This pin is for grounding the case(lid)
FET Drain
FET Source
FET Drain
FET Source
FET Drain
FET Source
FET Drain
FET Source
Memory
Switch 17 Low Side
Switch 17 High Side
Switch 19 Low Side
Switch 19 High Side
FET Drain
FET Source
FET Drain
FET Source
FET Drain
All data sheets are subject to change without notice
3
©2005 Maxwell Technologies.
All rights reserved.
24 Channel MOSFET Driver
T
ABLE
1. 24SW P
INOUT
D
ESCRIPTION
P
IN
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
N
AME
LD16_IN
TP3D
LD23_OUT
LD23_IN
TP9D
TP41A
TP41C
TP46D
LD21_OUT
LD21_IN
TP40D
LD22_OUT
LD22_IN
TP39D
TP45D
LD20_OUT
LD20_IN
TP45E
TP39E
TP40E
TP46E
TP48D
TP42D
TP47D
TP41D
TP41E
TP47E
TP42E
SS_CMD_18
SS_CMD_19
SS_CMD_20
TP48E
SS_CMD_21
SS_CMD_22
TP12B
SS_CMD_23
TP12A
01.10.05 Rev 2
24SW
F
UNCTION
N
OTES
FET Source
FET Drain
FET Source
Switch 16 High Side
Switch 23 Low Side
Switch 23 High Side
Switch 21 Low Side
Switch 21 High Side
Switch 22 Low Side
Switch 22 High Side
FET Drain
FET Source
FET Drain
FET Source
Memory
Switch 20 Low Side
Switch 20 High Side
FET Drain
FET Source
Switch 18 Control Input
Switch 19 Control Input
Switch 20 Control Input
Switch 21 Control Input
Switch 22 Control Input
Switch 23 Control Input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
All data sheets are subject to change without notice
4
©2005 Maxwell Technologies.
All rights reserved.
24 Channel MOSFET Driver
T
ABLE
1. 24SW P
INOUT
D
ESCRIPTION
P
IN
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
N
AME
TP48A
VSS
GND
TP10C
VDD
TP10A
TP48B
TP12C
TP10B
TP12D
SS_CMD_11
TP6D
SS_CMD_10
SS_CMD_9
TP11D
SS_CMD_8
SS_CMD_7
SS_CMD_6
TP5D
TP12E
TP6E
TP11E
TP5E
TP6C
TP6A
TP6B
LD11_OUT
LD11_IN
TP11C
LD10_OUT
LD10_IN
TP11A
LD9_OUT
LD19_IN
TP11B
LD7_OUT
LD7_IN
Switch 7 Low Side
Switch 7 High Side
01.10.05 Rev 2
24SW
F
UNCTION
N
OTES
-15V Power Supply
Analog Ground
+15V Power Supply
Switch 11 Control Input
Switch 10 Control Input
Switch 9 Control Input
Switch 8 Control Input
Switch 7 Control Input
Switch 6 Control Input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
TTL voltage level switch input
Memory
Switch 11 Low Side
Switch 11 High Side
Switch 10 Low Side
Switch 10 High Side
Switch 9 Low Side
Switch 9 High Side
FET Drain
FET Source
FET Drain
FET Source
FET Drain
FEt Source
FET Drain
FET Source
All data sheets are subject to change without notice
5
©2005 Maxwell Technologies.
All rights reserved.