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TD230N Datasheet(PDF) 1 Page - STMicroelectronics |
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TD230N Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 15 page TD230 ELECTRONIC CIRCUIT BREAKER October 1998 ® . TWO N-CHANNEL MOSFETs CONTROL AND DUAL INDEPENDANT CURRENT SUPERVI- SION FOR OVER CURRENT PROTECTION . DUAL SUPPLY OPERATION . FROM +3/-5 TO +18/-18V OPERATING VOLT- AGE . STEP-UP CONVERTER : VCC +13.5V OUTPUT VOLTAGE . ADJ U ST ABLE PR OT EC TI ON M OD E (CTRIP1/2) . INHIBIT FUNCTION . SHUTDOWN OUTPUT STATUS . FEW EXTERNAL COMPONENTS DESCRIPTION The TD230 is designed to control two N-channel MOSFETs used as power switches in circuit break- ing applications. Its current supervision and immediate action on the switches ensure high security for the boards and the supplies thus protected against short-circuit or over current. In case of short-circuit or over current detection, the TD230 immediately switches off the corresponding MOSFET, thus disconnecting the board from the supply. After several automatic restart attempts, a definitive shutdown of the circuit is done if the shortcircuit or over current persists over an exter- nally adjustable time, until the TD230 is reset by temporary INHIBIT signal or temporary switching off of the power supply (hot disconnection/recon- nection). If the board is disconnected from the positive sup- ply by the TD230 it will automatically be disjoncted from the negative supply too. TD230 integrates an induction step-up converter that provides 13.5V above the positive rail to drive the high side MOSFET. 1 2 3 4 5 6 7 9 10 11 12 13 14 8 15 16 PVcc LBOOS T CBO OST PM1 GND PM2 OS CGND NVcc REF1 GC1 S ENSP INHIBIT SHUTDOWN SENS N GC2 REF2 PIN CONNECTIONS ORDER CODES Part Number Temperature Range Package ND TD230I -40 oC, +125oC •• N DIP16 (Plastic Package) D SO16 (Plastic Micropackage) |
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