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VNI4140K Datasheet(PDF) 1 Page - STMicroelectronics |
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VNI4140K Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 24 page July 2008 Rev 3 1/24 24 VNI4140K Quad high side smart power solid state relay Features ■ Output current: 0.7 A per channel ■ Shorted load protections ■ Junction over-temperature protection ■ Case overtemperature protection for thermal independence of the channels ■ Thermal case shut-down restart not simultaneous for the various channels ■ Protection against loss of ground ■ Current limitation ■ Undervoltage shut-down ■ Open drain diagnostic outputs ■ 3.3 V CMOS/TTL compatible inputs ■ Fast demagnetization of inductive loads ■ Conforms to IEC 61131-2 Description The VNI4140K is a monolithic device made using STMicroelectronics VIPower technology, intended for driving four independent resistive or inductive loads with one side connected to ground. Active current limitation avoids dropping the system power supply in case of shorted load. Built-in thermal shut-down protects the chip from overtemperature and short circuit. In overload condition, channel turns OFF and back ON automatically so as to maintain junction temperature between TTSD and TR. If this condition makes case temperature reach TCSD, overloaded channel is turned OFF and will restart only when case temperature has decreased down to TCR. In case of more than one channel in overload, re-start of the overloaded channels will not be simultaneous, in order to avoid high peak current from the supply. Non overloaded channels continue to operate normally. The open drain diagnostics outputs indicates over-temperature conditions. Type Vdemag (1) 1. Per channel RDSon (1) Iout (1) VCC VNI4140K VCC-41 V 0.08 Ω 0.7 A 41 V PowerSSO-24 Figure 1. Block diagram www.st.com |
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