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TDA4714C

Siemens Semiconductor
Part Number TDA4714C
Manufacturer Siemens Semiconductor
Description Switched-Mode Power Supplies
Published Apr 23, 2005
Detailed Description IC for Switched-Mode Power Supplies (SMPS) TDA 4714 C TDA 4716 C Bipolar IC Features q q q q q q q q q q Push-pull ou...
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TDA4714C
TDA4714C

Overview
IC for Switched-Mode Power Supplies (SMPS) TDA 4714 C TDA 4716 C Bipolar IC Features q q q q q q q q q q Push-pull outputs (open collector) Double pulse suppression Dynamic current limitation Overvoltage protection IC undervoltage protection Reference voltage source Reference overload protection Soft start Feed-forward control Operational amplifier (TDA 4716 C) P-DIP-14-1 P-DIP-16-1 Type s TDA 4714 C s TDA 4716 C s Not for new design Ordering Code Q67000-A8312 Q67000-A8313 Package P-DIP-14-1 P-DIP-16-1 These versatile SMPS ICs comprise digital and analog functions which are required to design high-quality flyback, single-ended, and push-pull converters in normal, halfbridge and full-bridge configurations.
The components can also be used in single-ended voltage multipliers and speed-controlled motors.
Malfunctions in electrical operation are recognized by the integrated op amps which activate protective functions.
Semiconductor Group 1 09.
94 TDA 4714 C TDA 4716 C Pin Configurations (top view) TDA 4714 C TDA 4716 C Semiconductor Group 2 TDA 4714 C TDA 4716 C Pin Definitions and Functions (TDA 4714 C) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Symbol Function Reference voltage Supply voltage Output Q2 Output Q1 Soft start VCO RT VCO CT Ramp generator RR Ramp generator CR Input comparator Input overvoltage Dynamic current limitation (–) Dynamic current limitation (+) Ground Pin Definitions and Functions (TDA 4716 C) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol Function Reference voltage VREF Supply voltage VS Output Q2 Output Q1 Soft start VCO RT VCO CT Ramp generator RR Ramp generator CR Operational amplifier output Operational amplifier input (–) Operational amplifier input (+) Input overvoltage Dynamic current limitation (–) Dynamic current limitation (+) Ground VREF + VS Q2 Q1 VREF VS Q2 Q1 Csoft start RT CT RR CR I COMP I OV – IDYN + IDYN GND Csoft start RT CT RR CR Q op amp – I op amp + I op amp I OV – IDYN + IDYN GND Semiconductor Group 3 ...


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