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TC28C46 Scheda tecnica(PDF) 2 Page - TelCom Semiconductor, Inc |
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TC28C46 Scheda tecnica(HTML) 2 Page - TelCom Semiconductor, Inc |
2 / 10 page 4-102 TELCOM SEMICONDUCTOR, INC. ABSOLUTE MAXIMUM RATINGS Output Current, Source or Sink (Pins 1, 14) .......... 500mA Analog Inputs (Pins 3, 4, 5, 6, 16) .............. – 0.3V to +VIN Reference Output Current (Pin 2) ........................ – 30 mA Sync Output Current (Pin 10) .................................. – 5mA Error Amplifier Output Current (Pin 7) ..................... – 5mA Soft Start Sink Current (Pin 1) .................................. 50mA Oscillator Charging Current (Pin 9) ............................ 5mA Supply Voltage ............................................................ 18V Maximum Chip Temperature ................................... 150 °C Storage Temperature ............................ – 65 °C to +150°C Lead Temperature (Soldering, 10 sec) ................... 300 °C Package Thermal Resistance CerDIP RθJ-A ................................................................. 150°C/W CerDIP RθJ-C ................................................................... 55°C/W PDIP RθJ-A ..................................................................... 125°C/W PDIP RθJ-C ........................................................................ 45°C/W SOIC RθJ-A ..................................................................... 250°C/W SOIC RθJ-C ....................................................................... 75°C/W NOTES: 1. All voltages are with respect to Ground, Pin 12. Currents are positive into, negative out of the specified terminal. 2. Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to Absolute Maximum Rating Conditions for extended periods may affect device reliability. PIN CONFIGURATIONS 8 1 14 2 13 3 12 4 11 5 10 6 9 7 VDD + CURRENT SENSE 15 16 OUTPUT B – CURRENT SENSE VIN VREF SHDN CURRENT LIMIT/ SOFT START GND + ERROR AMP OUTPUT A – ERROR AMP SYNC COMP RT CT TC18C46MJE TC28C46EPE TC38C46CPE 8 1 14 2 13 3 12 4 11 5 10 6 9 7 15 16 TC28C46EOE TC38C46COE VDD + CURRENT SENSE OUTPUT B – CURRENT SENSE VIN VREF SHDN CURRENT LIMIT/ SOFT START GND + ERROR AMP OUTPUT A – ERROR AMP SYNC COMP RT CT 16-Pin Plastic DIP (Narrow) 16-Pin CerDIP 16-Pin SOIC (Wide) CMOS CURRENT MODE PWM CONTROLLERS TC18C46 TC28C46 TC38C46 |
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