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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gariboldi, R. Pulvirenti, F. |
| Copyright Year | 1995 |
| Description | Author affiliation: SGS-THOMSON Microelectronics, Via Tolomeo 1, 20010 - Cornaredo Milano, Italy (Gariboldi, R.) || Co.Ri.M.Me. Stradale Primosole 50, 95121 - Catania, Italy (Pulvirenti, F.) |
| Abstract | A new smart power switch for industrial, automotive and computer applications developed in BCD (Bipolar, CMOS, DMOS) technology is described. It consists of an on-chip 70 mΩ power DMOS transistor connected in high side configuration and its driver makes the device virtually indestructible and suitable to drive any kind of load with an output current of 2.5 A. If the load is inductive, an internal voltage clamp allows fast demagnetization down to 55 V under the supply voltage. The device includes novel structures for the driver, the fully integrated charge pump circuit and its oscillator. These circuits have specifically been designed to reduce ElectroMagnetic Interference (EMI) thanks to an accurate control of the output voltage slope and the reduction of the output voltage ripple caused by the charge pump itself (several patents pending). An innovative open load circuit allows the detection of the open load condition with high precision (2 to 4 mA within the temperature range and including process spreads). The quiescent current has also been reduced to 600 uA. Diagnostics for CPU feedback is available at the external connections of the chip when the following fault conditions occur: open load; output short circuit to supply voltage; overload or output short circuit to ground; over temperature; under voltage supply. |
| Starting Page | 262 |
| Ending Page | 265 |
| File Size | 1345429 |
| Page Count | 4 |
| File Format | |
| ISBN | 2863321803 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1995-09-19 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | Editions Frontieres |
| Subject Keyword | Switches Voltage CMOS technology Driver circuits Charge pumps Electromagnetic interference Land surface temperature Feedback circuits Computer industry Automotive engineering |
| Content Type | Text |
| Resource Type | Article |
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