TEA1761T/N2,118 NXP Semiconductors, TEA1761T/N2,118 Datasheet
TEA1761T/N2,118
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TEA1761T/N2,118 Summary of contents
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TEA1761T GreenChip synchronous rectifier controller Rev. 02 — 25 April 2007 1. General description The TEA1761T is a member of the new generation of Synchronous Rectifier (SR) controller ICs for switched mode power supplies. Its high level of integration allows ...
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... NXP Semiconductors 4. Ordering information Table 1. Ordering information Type number Package Name TEA1761T/N2 SO8 5. Block diagram OPTO SRSENSE DRIVER Fig 1. TEA1761T block diagram TEA1761T_2 Product data sheet Description plastic small outline package; 8 leads; body width 3 control Q R TIMER 2 n.c. GND Rev. 02 — 25 April 2007 TEA1761T GreenChip synchronous rectifi ...
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... NXP Semiconductors 6. Pinning information 6.1 Pinning Fig 2. Pin configuration for TEA1761T 6.2 Pin description Table 2. Symbol SRSENSE GND n.c. DRIVER OPTO VSENSE ISENSE Functional description The TEA1761T is the controller for synchronous rectification to be used in discontinuous conduction mode and quasi resonant flyback converters. Besides controlling the SR MOSFET, the TEA1761T contains the voltage reference and amplifi ...
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... NXP Semiconductors driver output is pulled to ground. After switch-on of the SR MOSFET, the input signal on the SRSENSE pin is blanked for 2 s (typical). This will eliminate false switch-off due to high frequency ringing at the start of the secondary stroke. Because the driver output voltage is reduced as soon as the voltage on the SRSENSE pin is 55 mV, the external power switch can be switched off fast when the current through the switch reaches zero ...
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... NXP Semiconductors 7.4 Opto output The opto output is intended to drive an opto coupler (see an open-drain output configuration. The maximum sink current is internally limited (typical). The output is linearly controlled via the V over-temperature situation will switch the opto output to its maximum sink current. ...
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... NXP Semiconductors 8. Limiting values Table 3. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). All voltages are measured with respect to ground (pin 2); positive currents flow into the chip. The voltage ratings are valid provided other ratings are not violated; current ratings are valid provided the other ratings are not violated ...
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... NXP Semiconductors Fig 4. Typical regulated V 10. Characteristics Table 5. Characteristics all voltages are measured with respect to ground (pin 2); currents are positive when flowing into amb CC the IC; unless otherwise specified. Symbol Parameter Supply voltage management (pin V V start-up voltage startup V hysteresis voltage ...
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... NXP Semiconductors Table 5. Characteristics …continued all voltages are measured with respect to ground (pin 2); currents are positive when flowing into amb CC the IC; unless otherwise specified. Symbol Parameter Opto output (pin OPTO) I maximum output current V O(max) V minimum output voltage O(min) Voltage sense (pin VSENSE) ...
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... NXP Semiconductors Vin Fig 5. Application example TEA1761T 12. Test information 12.1 Quality information The General Quality Specification for Integrated Circuits, SNW-FQ-611 is applicable. TEA1761T_2 Product data sheet Ropto OPTO TR Rsrsense Qprim Qsec PRIMARY SIDE CONTROLLER Rev. 02 — 25 April 2007 TEA1761T GreenChip synchronous rectifier controller ...
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... NXP Semiconductors 13. Package outline SO8: plastic small outline package; 8 leads; body width 3 pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. 0.25 1.45 mm 1.75 0.25 0.10 1.25 0.010 0.057 inches 0.069 0.01 0.004 0.049 Notes 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. ...
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... Added footnote • Soldering section removed. • The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. • Legal texts have been adapted to the new company name where appropriate. TEA1761T_1 20060331 TEA1761T_2 Product data sheet GreenChip synchronous rectifi ...
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... For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail ...
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... NXP Semiconductors 17. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.1 Distinctive features . . . . . . . . . . . . . . . . . . . . . . 1 2.2 Green features . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.3 Protection features . . . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 Functional description . . . . . . . . . . . . . . . . . . . 3 7.1 Start-up and undervoltage lock out 7.2 Synchronous rectifi ...