ITAXXB3 查看數據表（PDF） - STMicroelectronics
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ITAXXB3 Datasheet PDF : 7 Pages
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ITAxxB3
BIDIRECTIONAL TRANSIL™ ARRAY
ASD™
FOR DATALINE PROTECTION
MAIN APPLICATIONS
Differential data transmission lines protection,
such as :
■ RS-232
■ RS-423
■ RS-422
■ RS-485
FEATURES
■ High surge capability Transil array:
IPP = 40 A (8/20µs)
■ Peak pulse power : 300 W (8/20µs)
■ Separated Input - Output
■ Up to 9 bidirectional Transil functions
■ Low clamping factor (VCL / VBR) at high current
level
■ Low leakage current
■ ESD protection up to 15kV
SO-20
Table 1: Order Codes
Part Number
ITA6V5B3
ITA18B3
ITA18B3RL
ITA25B3
ITA25B3RL
Marking
ITA6V5B3
ITA18B3
ITA18B3
ITA25B3
ITA25B3
DESCRIPTION
Transil diode arrays provide high overvoltage
protection by clamping action. Their instantaneous
response to transient overvoltages makes them
particularly suited to protect voltage sensitive
devices such as MOS Technology and low voltage
supplied IC’s.
The ITA series combines high surge capability
against energetic pulses with high voltage per-
formance against ESD.
The separated input/output configuration of the
device ensures improved protection against very
fast transient overvoltage like ESD by elimination
of the spikes induced by parasitic inductances
created by external wiring.
COMPLIES WITH THE FOLLOWING STANDARDS:
■ IEC61000-4-2 level 4:
15kV (air discharge)
8kV (contact discharge)
■ MIL STD 883E-Method 3015-7: class3
25kV HBM (Human Body Model)
TM: ASD and TRANSIL are trademarks of STMicroelectronics.
Figure 1: Functional Diagram
GND 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
INPUT 6
INPUT 7
INPUT 8
INPUT 9
GND 10
20 GND
19 OUTPUT
18 OUTPUT
17 OUTPUT
16 OUTPUT
15 OUTPUT
14 OUTPUT
13 OUTPUT
12 OUTPUT
11 GND
December 2004
REV. 1
1/7
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