TDA16847-2 Infineon Technologies, TDA16847-2 Datasheet
TDA16847-2
Specifications of TDA16847-2
TDA168472X
TDA168472XK
Related parts for TDA16847-2
TDA16847-2 Summary of contents
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PWM- ...
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... Pin 7 charge current 23 23 Pin 13 rise and fall time adapted according to V TDA 16846-2/TDA 16847-2: Improvements of TDA 16846-2/TDA16847-2 compared with TDA 16846/TDA16847 Pin 5 OCI Expanded input voltage range down to zero, series resistor between pin 5 and ground is no longer necessary. Pin 7 SYN Improved startup to prevent the transformer from saturation also in fixed frequency and synchronized mode ...
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Controller for Switch Mode Power Supplies Supporting Low Power Standby and Power Factor Correction 1 Overview 1.1 Features • Line Current Consumption with PFC • Low Power Consumption • Stable and Adjustable Standby Frequency • Very Low Start-up Current • ...
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Regulation can be done by using the internal error amplifier or an opto coupler feedback (additional input). The output driver is ideally suited for driving a power MOSFET. Fixed frequency ...
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Short Description of the Pin Functions Pin Function 1 A parallel RC-circuit between this pin and ground determines the ringing suppression time and the standby-frequency capacitor between this pin and ground and a resistor between this pin ...
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Block Diagrams Figure 2 TDA 16846-2 Version 2.0 TDA 16846/16846-2 TDA 16847/16847 Jul 2003 ...
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Figure 3 TDA 16847-2 Version 2.0 TDA 16846/16846-2 TDA 16847/16847 Jul 2003 ...
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Functional Description Start Up Behaviour (Pin 14) When power is applied to the chip and the voltage upper threshold ( the Supply Voltage Comparator (SVC), then the input current ON I will be less than 100 ...
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Figure 5 Startup Voltage Diagram Primary Current Simulation PCS (Pin 2) / Current Limiting A voltage proportional to the current of the power transistor is generated at Pin 2 by the RC-combination (Figure 4). The voltage at ...
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Fold Back Point Correction PVC (Pin 11 derived from a voltage divider connected to the rectified mains and reduces the 11 limit of the possible current maximum in the power transistor if the mains voltage increases. I.e. this ...
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If the control voltage is below 2 V (at low output power) the “off-time” is maximum and constant During the discharge time tD1, V1 must not fall below the limit is not guaranteed. Figure 6 Off-Time-Circuit Version 2 ...
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Figure 7 Pulse Diagram of Off-Time-Circuit Figure 8 shows the converters switching frequency as a function of the output power. Figure 8 Load Dependent Frequency Curve Version 2.0 TDA 16846/16846-2 TDA 16847/16847 Jul 2003 ...
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Error Amplifier EA / Soft-Start (Pin 3, Pin 4) Figure 9 shows the simplified Error Amplifier circuit. The positive input of the Error Amplifier (EA) is the reference voltage 5 V. The negative input is the pulsed output voltage from ...
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Fixed Frequency and Synchronization Circuit SYN (Pin 7) Figure 11 shows the Fixed Frequency and Synchronization Circuit. The circuit is disabled when Pin 7 is not connected or connected to pin 9 (Vref, to avoid noise R C sensitivity). With ...
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Figure 12 Pulse Diagram for Fixed Frequency Circuit Synchronization mode is also possible. The synchronization frequency must be higher than the oscillator frequency. Figure 13 Ext. Synchronization Circuit Version 2.0 TDA 16846/16846-2 TDA 16847/16847 Jul 2003 ...
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Protection Functions The chip has several protection functions: Current Limiting See “Primary Current Simulation PCS (Pin 2) / Current Limiting” and “Fold Back Point Correction PVC (Pin 11)”. Over- and Undervoltage Lockout OV/SVC (Pin 14) When V at Pin ...
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Temporary High Power Circuit FC2, PMO, REF (Pin TDA 16847-2) Figure 14 shows the Temporary High Power Circuit: Figure 14 The Temporary High Power Circuit (THPC) consists of two parts: Firstly, a power measurement circuit is ...
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Secondly, a High Power Shutdown Comparator (FC2) is implemented: When the voltage V at Pin 6 exceeds 1.2 V the Error Flip Flop (ERR) is set. The output voltage of the 6 power measurement circuit (Pin 8) is smoothed by ...
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Electrical Characteristics 5.1 Absolute Maximum Ratings All voltages listed are referenced to ground (0 V, Parameter Supply Voltage at Pin 14 Voltage at Pin – Voltage at Pin Startup ...
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Characteristics Unless otherwise stated, – < Parameter Supply Voltage and Startup Circuit VCC (Pin 14) Overvoltage threshold Turn-ON threshold Turn-OFF threshold V Delta-OV Supply current, OFF Supply current, ON Primary Current Simulation PCS (Pin 2) ...
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Characteristics (cont’d) Unless otherwise stated, – < Parameter Zero Crossing Input RZI (Pin 3) Zero crossing threshold (Pin 3) Delay to switch-on Bias current Pin 3 Error Amplifier Input RZI (Pin 3) Input threshold (Pin 3) Low ...
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Characteristics (cont’d) Unless otherwise stated, – < Parameter Fixed Frequency and Synchronization Circuit SYN (Pin 7) Charge current Upper threshold Lower threshold Input voltage range Bias current Pin 7 Primary Voltage Check PVC (Pin 11) Threshold Reference ...
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Characteristics (cont’d) Unless otherwise stated, – < Parameter Fault Comparator FC2 (Pin 6) HPC Threshold Bias Current Pin 6 Fault Comparator FC1 (Pin 10) Threshold Bias current Pin 10 Power Measurement Output PMO (Pin 8, only TDA ...
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Figure 15 Circuit Diagram for Application with PFC Version 2.0 TDA 16846/16846-2 TDA 16847/16847 Jul 2003 ...
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Figure 16 Circuit Diagram for Standard Application Version 2.0 TDA 16846/16846-2 TDA 16847/16847 Jul 2003 ...
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Figure 17 Circuit Diagram for Application with Temporary High Power Circuit Version 2.0 TDA 16846/16846-2 TDA 16847/16847 Jul 2003 ...
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Package Outlines P-DIP-14-3 (Plastic Dual In-line Package) Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book "Package Information". Version 2.0 TDA 16846/16846-2 27 TDA 16847/16847-2 Dimensions Jul 2003 ...
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P-DSO-14-3 (Plastic Dual In-line Package) Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book "Package Information". Version 2.0 TDA 16846/16846-2 TDA 16847/16847-2 28 Dimensions Jul 2003 ...
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