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Operating Supply Voltage : | 20 V | Supply Current : | 3 mA |
Maximum Operating Temperature : | + 85 C | Package / Case : | PDIP-8 |
Packaging : | Tube |
Parameter | Symbol | Limit Values | Unit | Remarks | |
min. | max. | ||||
Voltages pin 1 pin 2 pin 3 pin 5 pin 6 pin 7 |
V1 V2 V3 V5 V6 V7 |
0.3 0.3 0.3 0.3 0.3 0.3 |
3 V6 20 6 |
V V V V V V |
Supply voltage |
Currents pin 1 pin 2 pin 3 pin 4 pin 5 pin 6 pin 7 pin 8 |
V1 V2 V3 V4 V5 V6 V7 V8 |
1.5 1.5 3 |
3 3 3 1.5 1.5 3 3 |
mA mA mA A A A mA mA |
tp 50 s; v 0.1*) tp 50 s; v 0.1 tp 50 s; v 0.1 |
Junction temperature | Tj | 125 | |||
Storage temperature | Tstg | 40 | 125 |
The IC TDA4605 controls the MOS-power transistor and performs all necessary regulation and monitoring functions in free running flyback converters. Since good load regulation over a wide load range is attained, this IC is applicable tor consumer and industrial power supplies.
The TDA4605 serial circuit of power transistor and primary winding of the flyback transformer is connected to the input voltage. During the switch - on period of the transistor, energy is stored in the transformer and during the switch - off period it is fed to the load via the secondary winding. By varying switchon time of the power transistor, the TDA4605 controls each portion of energy transferred to the secondary side such that the output voltage remains nearly independent ot load variations.
The required control information is taken from the input voltage during the switch-on period and from a regulation winding during the switch-off period.
Technical/Catalog Information | TDA4605 |
Vendor | STMicroelectronics |
Category | Integrated Circuits (ICs) |
Type | - |
Voltage - Supply | - |
Current - Supply | - |
Voltage - Input | - |
Package / Case | 8-DIP (300 mil) |
Packaging | Tube |
Applications | Power Supply Controller |
Operating Temperature | -20°C ~ 85°C |
Drawing Number | * |
Lead Free Status | Lead Free |
RoHS Status | RoHS Compliant |
Other Names | TDA4605 TDA4605 |