TDA4716C Infineon Technologies AG, TDA4716C Datasheet
TDA4716C
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TDA4716C Summary of contents
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IC for Switched-Mode Power Supplies (SMPS) Bipolar IC Features 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) Type ...
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Pin Configurations (top view) TDA 4714 C Semiconductor Group TDA 4716 C 2 TDA 4714 C TDA 4716 C ...
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Pin Definitions and Functions (TDA 4714 C) Pin Symbol Function V 1 Reference voltage REF Supply voltage Output Output Soft start soft start 6 R VCO R T ...
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Circuit Description The following is a description of the individual functional units and their interaction. Voltage Controlled Oscillator (VCO) The VCO generates a sawtooth voltage. The duration of the falling edge is determined C by the value of . The ...
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Pulse Turn-OFF Flipflop The pulse turn-OFF flipflop enables the outputs at the start of each half cycle error signal from comparator turn-off signal from K2 is present, the outputs will immediately be switched off. Comparator ...
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Comparator K7 K7 serves to recognize overcurrents. This is the reason why both inputs of the operational amplifier have been brought out. Turning on is resumed after error recovery at the beginning of the next half period but without using ...
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Block Diagram (TDA 4714 C) Semiconductor Group 7 TDA 4714 C TDA 4716 C ...
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Block Diagram (TDA 4716 C) Semiconductor Group 8 TDA 4714 C TDA 4716 C ...
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Absolute Maximum Ratings Parameter Supply voltage Voltage at Q1, Q2 Current at Q1 Input T C Input T R Input R C Input R Input comparator K2, K5, K7 Output K5 Input op amp TDA 4716 C Output ...
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Characteristics < < – < S Parameter Supply current 100 kHz VCO Reference T Reference voltage mA, = ...
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Characteristics (cont’ < < – < S Parameter Ramp Generator Frequency range C Maximum voltage Minimum voltage Input current through R Current transformation ratio Comparator K2 Input ...
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Characteristics (cont’ < < – < S Parameter Output Stages Q1, Q2 Output voltage Output leakage current Dynamic Current Limitation K7 Common-mode input ...
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Dimensioning Notes for RC Network 1. Determination of the minimum time during which both outputs must be disabled C selection of 2. Determination of the VCO frequency = 2 x output frequency selection Determination of the rated ...
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Pulse Diagram Semiconductor Group 14 TDA 4714 C TDA 4716 C ...
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VCO Frequency versus Semiconductor Group R C and TDA 4714 C TDA 4716 C ...
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VCO Temperature Response max VCO C ---------------- 1 K with as parameter Semiconductor Group 16 TDA 4714 C TDA 4716 C ...
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Supply Current versus Temperature Semiconductor Group Output Current versus L-Output Voltage 17 TDA 4714 C TDA 4716 C ...