Siemens TDA 4601 Data Manual
Summary
Optimized for stable performance in self-oscillating flyback converter power supplies, this integrated circuit precisely drives, controls, and protects switching transistors. The TDA 4601 ensures reliable operation during startup, normal loads, and severe disturbances by preventing secondary voltage spikes. This documentation provides detailed technical instruction on the chip's proprietary control logic and operating modes. Essential for engineers developing high-stability power solutions for consumer electronics—including TV sets, audio equipment, and sophisticated professional industrial units.
Page 1 Text Content
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Control ICs for Switched-Mode Power Supplies TDA 4601
Bipolar IC
Features Direct control of the switching transistor Low start-up current Reversing linear overload characteristic Base current drive proportional to collector current Protective circuit in case of disturbance
P-SIP-9-1
Type Ordering Code Package TDA 4601 Q67000-A2379 P-SIP-9-1
The integrated circuit TDA 4601/D is designed for driving, controlling and protecting the switching transistor in self-oscillating flyback converter power supplies as well as for protecting the overall power supply unit. In case of disturbance, the rise of the secondary voltage is prevented. In addition to the ICs application range including TV-receivers video tape recorders, hifi devices and active loudspeakers, it can also be used in power supply units for professional applications due to its wide control range and high voltage stability during increased load changes.
Semiconductor Group 06.94
Page Summary Contents For Siemens TDA 4601 Data Manual
Manual Details
| Brand | Siemens |
|---|---|
| Pages | 26 |
| File Size | 1.32 MB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What types of devices are compatible with this IC?
It can be used in TV-receivers, VCRs, hifi devices and active loudspeakers, or professional power supply units.
How does the TDA 4601 initiate operation?
Start-up involves three phases: building internal reference voltage, enabling a key internal voltage (approx. 12V), and finally activating the control logic.
What safety features are included in the design?
The IC protects against disturbances by inhibiting the switching transistor drive and preventing any rise of secondary voltage.