This product is not recommended for new designs. TNY263-268 TinySwitch-II Family Enhanced, Energy Efficient, Low Power Off-line Switcher Product Highlights + + Optional DC TinySwitch-II Features Reduce System Cost UV Resistor Output Fully integrated auto-restart for short circuit and open loop fault - protection saves external component costs Wide-Range Built-in circuitry practically eliminates audible noise with ordinary High-Voltage D dip-varnished transformer DC Input EN/UV Programmable line undervoltage detect feature prevents power TinySwitch-II BP on/off glitches saves external components S Frequency jittering dramatically reduces EMI (~10 dB) minimizes EMI filter component costs - 132 kHz operation reduces transformer size allows use of PI-2684-061815 EF12.6 or EE13 cores for low cost and small size Figure 1. Typical Standby Application. Very tight tolerances and negligible temperature variation on key parameters eases design and lowers cost Lowest component count switcher solution Expanded scalable device family for low system cost Output Power Table Better Cost/Performance over RCC & Linears 230 VAC 15% 85-265 VAC Lower system cost than RCC, discrete PWM and other 3 Product Open Open 1 1 integrated/hybrid solutions Adapter Adapter 2 2 Frame Frame Cost effective replacement for bulky regulated linears TNY263 P/G 5 W 7.5 W 3.7 W 4.7 W Simple ON/OFF control no loop compensation needed TNY264 P/G 5.5 W 9 W 4 W 6 W No bias winding simpler, lower cost transformer Simple design practically eliminates rework in manufacturing TNY265 P/G 8.5 W 11 W 5.5 W 7.5 W TNY266 P/G 10 W 15 W 6 W 9.5 W EcoSmart Extremely Energy Efficient TNY267 P/G 13 W 19 W 8 W 12 W No load consumption <50 mW with bias winding and <250 mW without bias winding at 265 VAC input TNY268 P/G 16 W 23 W 10 W 15 W Meets California Energy Commission (CEC), Energy Star, and Table 1. Output Power Table. EU requirements Notes: Ideal for cell-phone charger and PC standby applications 1. Minimum continuous power in a typical non-ventilated enclosed adapter measured at 50 C ambient. High Performance at Low Cost 2. Minimum practical continuous power in an open frame design with adequate High voltage powered ideal for charger applications heat sinking, measured at 50 C ambient (See Key Applications Considerations). High bandwidth provides fast turn on with no overshoot 3. Packages: P: DIP-8B, G: SMD-8B. Please see Part Ordering Information. Current limit operation rejects line frequency ripple Built-in current limit and thermal protection improves safety Description TinySwitch-II integrates a 700 V power MOSFET, oscillator, The fully integrated auto-restart circuit safely limits output power high voltage switched current source, current limit and thermal during fault conditions such as output short circuit or open loop, shutdown circuitry onto a monolithic device. The start-up and reducing component count and secondary feedback circuitry operating power are derived directly from the voltage on the cost. An optional line sense resistor externally programs a line DRAIN pin, eliminating the need for a bias winding and associated undervoltage threshold, which eliminates power down glitches circuitry. In addition, the TinySwitch-II devices incorporate caused by the slow discharge of input storage capacitors present auto-restart, line undervoltage sense, and frequency jittering. An in applications such as standby supplies. The operating innovative design minimizes audio frequency components in the frequency of 132 kHz is jittered to significantly reduce both the simple ON/OFF control scheme to practically eliminate audible quasi-peak and average EMI, minimizing filtering cost. noise with standard taped/varnished transformer construction. www.power.com August 2016 This Product is Covered by Patents and/or Pending Patent Applications.TNY263-268 BYPASS DRAIN (BP) (D) REGULATOR 5.8 V LINE UNDERVOLTAGE 240 A 50 A FAULT BYPASS PIN UNDERVOLTAGE PRESENT + AUTO- RESTART - COUNTER 5.8 V CURRENT 4.8 V V LIMIT STATE I LIMIT MACHINE RESET 6.3 V CURRENT LIMIT COMPARATOR ENABLE JITTER CLOCK 1.0 V + V T THERMAL DC MAX SHUTDOWN OSCILLATOR ENABLE/ 1.0 V UNDER- VOLTAGE S Q (EN/UV) R Q LEADING EDGE BLANKING SOURCE (S) PI-2643-031715 Figure 2. Functional Block Diagram. Pin Functional Description DRAIN (D) Pin: P Package (DIP-8B) Power MOSFET drain connection. Provides internal operating G Package (SMD-8B) current for both start-up and steady-state operation. BYPASS (BP) Pin: BP S (HV RTN) 1 8 Connection point for a 0.1 F external bypass capacitor for the internally generated 5.8 V supply. S 2 7 S (HV RTN) S ENABLE/UNDERVOLTAGE (EN/UV) Pin: 3 This pin has dual functions: enable input and line undervoltage EN/UV 5 4 D sense. During normal operation, switching of the power MOSFET is controlled by this pin. MOSFET switching is terminated when a current greater than 240 A is drawn from this pin. This pin also senses line undervoltage conditions PI-2685-031715 through an external resistor connected to the DC line voltage. If there is no external resistor connected to this pin, Figure 3. Pin Configuration. TinySwitch-II detects its absence and disables the line undervoltage function. SOURCE (HV RTN) Pin: Output MOSFET source connection for high voltage return. SOURCE (S) Pin: Control circuit common, internally connected to output MOSFET source. 2 Rev. J 08/16 www.power.com + -