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24SW
24 Channel MOSFET Driver
LDX_IN
SS_CMD_X
LDX_OUT 1 of 24 Switches
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Logic Diagram
FEATURES:
* * * * * 24 independently switchable power FETs Low equivalent on resistance (200 m typ) 2A switching current per channel No derating required to 90 C Total dose hardness: depending upon space mission in
DESCRIPTION:
Maxwell Technologies 24SW multi-chip module (MCM) 24 channel MOSFET driver uses Maxwell Technologies' patented radiation-hardened RAD-PAK(R) MCM packaging technology. The 24SW is a radiation hardened MOSFET driver for space applications. The 24SW incorporates twenty-four independent pchannel MOSFETs, along with interface components, that can switch up to 2A per channel. The RDS-ON of the MOSFET is typically less than 200m. Maxwell Technologies' patented RAD-PAK(R) packaging technology incorporates radiation shielding in the microcircuit 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.
RAD-PAK(R)
* Package: 176-pin quad flat pack
01.10.05 Rev 2
All data sheets are subject to change without notice
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(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
24SW
TABLE 1. 24SW PINOUT DESCRIPTION
PIN 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 NAME Pkg-Gnd TP1B TP7D TP1D TP8D TP2D TP7E TP1E FUNCTION Case Ground NOTES This pin is for grounding the case(lid)
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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
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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
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(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
TABLE 1. 24SW PINOUT DESCRIPTION
PIN 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 NAME 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
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24SW
FUNCTION NOTES 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
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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
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
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(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
TABLE 1. 24SW PINOUT DESCRIPTION
PIN 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 NAME 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
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24SW
FUNCTION NOTES 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
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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
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(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
TABLE 1. 24SW PINOUT DESCRIPTION
PIN 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 NAME 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
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24SW
FUNCTION NOTES
-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
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TTL voltage level switch input TTL voltage level switch input TTL voltage level switch input TTL voltage level switch input
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
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(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
TABLE 1. 24SW PINOUT DESCRIPTION
PIN 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 NAME TP5C LD8_OUT LD8_IN TP5A TP5B TP9C TP9A LD4_OUT LD4_IN TP9B LD6_OUT LD6_IN TP3C LD5_OUT LD5_IN TP3A LD2_OUT LD2_IN TP3B TP8C TP8A TP8B LD0_OUT LD0_IN TP7C LD3_OUT LD3_IN TP7A TP7B LD1_OUT LD1_IN TP1C TP1A Switch 1 Low Side Switch 1 High Side FET Drain FET Source Switch 3 Low Side Switch 3 High Side FET Drain FET Source Switch 0 Low Side Switch 0 High Side FET Drain FET Source Switch 2 Low Side Switch 2 High Side FET Drain FET Source Switch 6 Low Side Switch 6 High Side Switch 5 Low Side Switch 5 High Side FET Drain FET Source Switch 4 Low Side Switch 4 High Side FET Drain FET Source Switch 8 Low Side Switch 8 High Side FET Drain FET Source FUNCTION NOTES
24SW
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FET Drain FET Source
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All data sheets are subject to change without notice
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(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
TABLE 2. 24SW ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage Range Switch Input Voltage Range Storage Temperature Range Operational Temperature Range Maximum Power Dissipation Per Switch Per Module Thermal Resistance, Junction to Mounting Base of Case Junction Temperature TS TA PD --2.04 10.0 6.5 125 SYMBOL V15V V-15V MIN --16.5 -1.0 -55 -40 MAX 16.5 -40 125 110
24SW
UNIT V V V
C C
W
-- C/W C
JC
TJ
TABLE 3. 24SW RECOMMENDED OPERATING CONDITIONS
PARAMETER Supply Voltage Range Control Input High Voltage Control Input Low Voltage Operational Temperature Range (Case temperature) 1 Power Dissipation 1. As long as the 125 C junction temperature limit is not exceeded. SYMBOL V15V V-15V VIH VIL TA PD MIN 13.5 -13.5 2.4 DGND - 0.5 -40 -MAX 16.5 -16.5 V5V + 0.5 0.8 110 6.5 UNIT V V V V
C
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All data sheets are subject to change without notice
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(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
TABLE 4. 24SW ELECTRICAL CHARACTERISTICS
(V15V = 15V, V-15V = -15V, TA = -40 TO 110C, UNLESS OTHERWISE SPECIFIED) PARAMETER Control Input High Voltage Control Input Low Voltage SYMBOL CONDITIONS VIH VIL I15V I-15V I15V I-15V Switching Voltage (Ground side switching is acceptable)2 Switching Current Equivalent ON resistance per switch Switching Leakage Current for OFF state Turn ON Time (Rise time) Turn OFF Time (Fall time) VSW ISWPOWER
24SW
SUBGROUPS 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3
MIN 2.4 ---135 310 -1.0 0.002 --100 50
NOM ----200 475 28 -200 ----
MAX -0.8 3.0 3.0 240 590 37 2.0 325 0.25 500 350
UNIT V V mA mA A per switch A per switch V A m mA uS uS
Results in turning FET switch -ON (closed) Results in turning FET switch -OFF (Open) All 24 switches OFF All 24 switches OFF For each switch that is ON1 For each switch that is ON1 Referenced to Power Ground Load Switching Range Switch input voltage = 28V, Current = 2 amps
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RON
ISWOFF Switch input voltage = 37V, Tj temperature = 125 C tON tOFF Switch input voltage = 28V, Load current = 1 amp Switch input voltage = 28V, load current = 0.1 amps
1. Total current = current per SW x # of SW + bias current. 2. Power Gnd, DGND and AGND all must be within 0.7V of each other.
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All data sheets are subject to change without notice
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(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
24SW
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176 PIN RAD-PAK(R) QUAD FLAT PACKAGE
SYMBOL MIN A b c D D1 e L L1 L2 A1 F1 F4 N 4.025 3.985 3.168 0.051 2.195 2.395 0.239 0.028 0.010 2.425 DIMENSION NOM 0.264 0.030 0.012 2.450 SQ 2.150 0.050 BSC 4.040 4.000 3.200 0.058 2.200 2.400 176 4.045 4.005 3.232 0.065 2.205 2.405 MAX 0.289 0.032 0.014 2.475
Q176-01 Note: All dimensions in inches
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All data sheets are subject to change without notice
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(c)2005 Maxwell Technologies. All rights reserved.
24 Channel MOSFET Driver
Important Notice:
24SW
These data sheets are created using the chip manufacturer's published specifications. Maxwell Technologies verifies functionality by testing key parameters either by 100% testing, sample testing or characterization. The specifications presented within these data sheets represent the latest and most accurate information available to date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no responsibility for the use of this information. Maxwell Technologies' products are not authorized for use as critical components in life support devices or systems without express written approval from Maxwell Technologies. Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Technologies. Maxwell Technologies' liability shall be limited to replacement of defective parts.
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01.10.05 Rev 2
All data sheets are subject to change without notice
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(c)2005 Maxwell Technologies. All rights reserved.

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