TEA-2261 ST Microelectronics, TEA-2261 Datasheet
TEA-2261
Related parts for TEA-2261
TEA-2261 Summary of contents
Page 1
... The capability of working according to the "master- slave" concept, or according to the "primary regu- lation" mode makes the TEA2260/61 very flexible and easy to use. This is particularly true for TV receivers where the IC provides an attractive and low cost solution (no need of stand-by auxiliary power supply) ...
Page 2
... TEA2260 - TEA2261 SIMPLIFIED APPLICATION DIAGRAMS Figure 1 : Master-slave Concept R MAINS INPUT TEA2260/61 SLAVE P : Output voltage adjustement in normal mode Output voltage adjustement in stand-by 2 Figure 2 : Secondary Regulation (with optocoupler) R MAINS INPUT TEA2260/ Output voltage adjustement 2 AUDIO OUTPUT STAGE P 1 Synchronization ...
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... REGULATION PULSES PULSES IS LOGIC PROCESSOR REPETITIVE OVERLOAD PROTECTION - 45µ A SENSING 0.15V 10µ A SECONDARY PULSE Parameter V16-V4, 5, 12, 13 V15-V4 AMB 150 TEA2260 - TEA2261 15.7V - POSITIVE + 1.2A OUTPUT STAGE (Max.) LOGIC V CC NEGATIVE - 2A OUTPUT STAGE (Max.) CURRENT LIMITATION - - - 2.55V 0.6V 0. ...
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... TEA2260 - TEA2261 RECOMMENDED OPERATING CONDITIONS Symbol V Power Supply Positive Output Current (source current) OUT I - Negative Output Current (sink current) OUT I + Average Positive Output Current OUT I - Average Negative Output Current OUT F Operating Frequency oper V Input Pulses Amplitude (Pin Oscillator Resistor Range ...
Page 5
... The synchronization function and the specific operation in stand-by mode make it well adapted to video applications such as TV sets, VCRs, monitors, etc... The TEA2260/61 can be used in two types of architectures : - Master/slave architecture. In this case, the TEA2260/61 drives the power transistor accord- ing to the pulse width modulated signals gener- ated by the secondary located master circuit ...
Page 6
... TEA2260 - TEA2261 SECURITY FUNCTIONS OF THE TEA2260 (see flow-chart below) - Undervoltage detection. This protection works in association with the starting device "V switch" (see paragraph Starting-mode - standby mode lower than V CC 7.4V) output pulses are inhibited, in order to avoid wrong operation of the power supply or bad power transistor drive ...
Page 7
... SECURITY FUNCTIONS OF THE TEA2261 (see flow-chart below) - Undervoltage detection. This protection works in association with the starting device "V switch" (see paragraph Starting-mode - standby mode lower than V CC 7.4V) output pulses are inhibited, in order to avoid wrong operation of the power supply or bad power transistor drive. ...
Page 8
... Small signal secondary ground Power primary ground Secondary ground (isolated from mains SET SMPS (with TEA5170) Input voltage range Input DC voltage range Output power in normal mode Output power in stand by mode Operating frequency Efficiency at full load Efficiency in stand by mode ...
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... The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S. Millimeters Typ. Max. 1.65 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1. system, is granted provided that the system conforms to 2 the I C Standard Specifications as defined by Philips. TEA2260 - TEA2261 b1 E Inches Min. Typ. 0.020 0.030 0.065 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 Max. 9/9 ...