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(R)
SA12B5 SA16B3 / SA16B6
SCHOTTKY ARRAYS
Application Specific Discretes A.S.D.TM
MAIN APPLICATIONS Any electronic equipment where suitable bus termination is required to avoid signal reflections and distortions : PCs Workstations High frequency processor boards Dataline interface DESCRIPTION Dedicated to bus termination, the Schottky arrays SA12B5, SA16B3 and SA16B6 minimise stray emissions from PCB tracks. They provide suitable termination by avoiding signal reflexions and distortions. FEATURES 12-BIT (SA12) OR 16-BIT (SA16) DUAL SCHOTTKY DIODE ARRAYS REVERSE VOLTAGE : VRRM = 7.5 V FORWARD VOLTAGE VF < 1.3 V
SO-16
BENEFITS Provides impedance matching, and minimizes distortion. Lowers EMI / RFI radiation. Eliminates negative voltage : minimizes risk of latch-up for sensitive ICs. Saves valuable space on board. SO-20
COMPLIES WITH FOLLOWING STANDARD : - MIL STD 883C - Method 3015-6 - class 3 - IEC1000-4-2 level 4
SSOP20
April 1999 - Ed: 1
1/5
SA12B5 / SA16B3 / SA16B6
FUNCTIONAL DIAGRAM (SO-16)
VCC
1 16
FUNCTIONAL DIAGRAM (SO-20 and SSOP20)
VCC
VCC
1
20 VCC
2
2 15
19
3
3 14
18
4
4
17
13
5
16
5
12
6
15
7
6 11
14
8
7 10
13
9
12
VSS
8
9
VSS
VSS 10
11 VSS
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 C) Symbol P VOP VPP Top Tstg TL Tj Parameter and test conditions Power dissipation Maximum operating voltage (VCC - VSS) Maximum electrostatic discharge MIL STD 883C - Method 3015-6 / IEC1000-4-2 contact Operating temperature range (see note 1) Storage temperature range Maximum lead temperature for soldering during 10s Maximum junction temperature SO-20 SO-16 and SSOP20 Value 1250 850 7.5 8 -40 to +85 -55 to +150 260 150 Unit mW V kV C C C C
Note1: withinthe Top range, the SAxx keepon operating. The impacts of the ambient temperature are givenby derating curves on thefollowingpage.
ELECTRICAL CHARACTERISTICS (Tamb = 25C) Symbol IR VF Cd Parameter and test conditions Leakage current @ VRRM = 7.5 V Forward voltage (see note 2) Capacitance IPP = 18 mA IPP = 50 mA Vbias = 0V, F = 1MHz Typ. Max. 5 1.05 1.3 16 Unit A V pF
Note 2: for both pull-up and pull-down schotty diodes.
THERMAL RESISTANCE Symbol Rth(j-a) Parameter Junction to ambient Packages SO-16 and SSOP20 SO-20 Value 140 100 Unit C/W
2/5
SA12B5 / SA16B3 / SA16B6
Fig1-1: Clamping forward voltage versus peak pulse current (typical values, low level). Fig1-2: Clamping forward voltage versus peak pulse current (typical values, high level).
Ipp(A) 1E+0 1E-1
tp=2.5s Tj=25C
Ipp(A) 5.0
Tj=25C tp=2.5s
1.0
1E-2 1E-3
Tj=85C
Tj=-40C
Vcl(V) 1E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Vcl(V) 0.1 0 1 2 3 4 5 6 7
Fig 2: Leakage current versus junction temperature (typical values).
Fig 3: Non repetitive surge peak forward current versus pulse duration (rectangular waveform).
IR(A) 1E+2
VR=7.5V
IFSM(A) 10
Tj initial =25C
1E+1 1E+0 1E-1 Tj(C) 1E-2 0 25 50 75 100 125
5
2 tp(s) 1 1 10 100 1000
Fig 4: Non repetitive surge peak forward current versus initial junction temperature.
Fig 5: Capacitance between input or output and ground versus applied voltage (typical values).
IFSM[Tj] / IFSM[Tj=25C] 1.2 1.0 0.8 0.6 0.4 0.2 Tj(C) 0.0 0 25 50 75 100 125
Ci/o(pF) 30 28 26 24 22 20 18 16 Vi/o-gnd(V) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Vcc=5V F=1MHz Vosc=30mV
3/5
SA12B5 / SA16B3 / SA16B6
TYPICAL APPLICATION
VCC
SAxxBx
P
Bus
High speed memory
MARKING Type SA12B5 SA16B3 SA16B6 Package SO16 SO20 SSOP20 Marking SA12B5 SA16B3 SA16B6
PACKAGE MECHANICAL DATA SO-16 DIMENSIONS
L G C a2 A b e e3 D (1) M S a1 E b1 c1
REF.
Millimeters Min. Typ. Max. Min. 1.75 0.1 0.35 0.19 0.5 45(typ.) 9.8 5.8 1.27 8.89 3.8 4.6 0.5 4.0 5.3 0.75 8(typ.) 0.150 0.181 10 6.2 0.386 0.228 0.20 0.004 1.6 0.46 0.014 0.25 0.007
Inches Typ. Max. 0.069 0.008 0.063 0.018 0.010 0.020 0.394 0.244 0.050 0.350 0.158 0.209 0.050 0.030
A a1 a2 b b1 C c1 D E
16
9
F (1)
1 8
(1) Do not include mold flash or protr usions.Mold flash or protr usions shall not exceed 0.15mm (0.006inches)
Weight : 0.160g
e e3 F G L M S
1.27 0.020
4/5
SA12B5 / SA16B3 / SA16B6
PACKAGE MECHANICAL DATA SO-20 DIMENSIONS REF. A A1 B C D E e H h L K Millimeters Inches Min. Typ. Max. Min. Typ. Max. 2.35 0.10 0.33 0.23 12.6 7.40 1.27 10.0 0.25 0.50 10.65 0.394 0.75 0.010 1.27 0.020 8 (max) 2.65 0.20 0.51 0.32 13.0 7.60 0.092 0.004 0.013 0.009 0.484 0.291 0.050 0.419 0.029 0.050 0.104 0.008 0.020 0.013 0.512 0.299
Weight : 0.520g
SSOP20 DIMENSIONS Millimeters Inches Min.
a2 A b D e S E a1 b1
L
REF. A A1 A2 b c D E E1 e k L
Typ. Max. Min. 2.00 0.25 2.00 0.35 0.35 8.05 8.70 6.22
Typ. Max.
20
11
F
1 10
1.51 0.25 0.10 7.05 7.60 5.02 0 0.25
0.30
6.10 0.65 0.50
0.079 0.010 0.059 0.079 0.010 0.012 0.014 0.004 0.014 0.278 0.317 0.299 0.343 0.198 0.240 0.245 0.026 10 0 10 0.80 0.010 0.020 0.031
Weight : 0.180g
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