POWER INTEGRATIONS TNY268PN IC, OFF LINE SWITCHER, DIP8, 268 The TNY268PN is an integrated offline switching IC that contains the controller and power switch in one package.
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Apr 27, 2022
Blair Evan
TNY263-TNY268 Function
POWER INTEGRATIONS TNY268PN IC, OFF LINE SWITCHER, DIP8, 268
The TNY268PN is an integrated offline switching IC that contains the controller and power switch in one package. This post will unlock its datasheet, pinout, application circuit, feature and more details about TNY268PN.
TNY268PN
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.00956 | $2.01 |
| 10+ | $1.89581 | $18.96 |
| 100+ | $1.7885 | $178.85 |
| 500+ | $1.68727 | $843.64 |
| 1000+ | $1.59176 | $1591.76 |
TNY268PN Pinout
|
Pin Number |
Pin Name |
Description |
|
1 |
BP |
Bypass pin for internal 5.8V regulator |
|
2, 3 |
S |
Power MOSFET source pins |
|
4 |
EN/UV |
IC enable, Undervoltage detection pin |
|
5 |
D |
Power MOSFET drain pin |
|
7, 8 |
S(HV RT) |
Power MOSFET high voltage source return pins |
Symbol
TNY268PN Symbol
Footprint
TNY268PN Footprint
3D Model
TNY268PN 3D Model
The TNY268PN is an integrated offline switching IC that includes both the controller and the power switch in a single package. To implement a mains-powered flyback converter, only a few external components are required.
Off-line switcher with full integration
132kHz switching frequency, up to 23W output power
Built-in current and overheat protection
TNY268PN Functional Block Diagram
Phone chargers
Off-line power converters
Battery backup trickle chargers
High input voltage flyback converters
Designing an off-line (as in, powered off-line mains voltage) converter has always been a difficult process since, in addition to calculating numerous part specifications, safety must also be considered. ICs such as the TNY268PN make the work easier by including all of the necessary control components as well as the power switch into a single IC. A transformer and some passives are the only external components required. The diagram below is an example application circuit of TNY268PN.
TNY268PN Application Circuit
The TYN268PN is mostly handled as a high-voltage power MOSFET linked to the transformer's low side. Only two extra pins are used: the bypass pin for the internal power supply, which must be connected with an appropriate capacitor, and the EN/UV pin, which also acts as the feedback pin. The feedback network is an optocoupler that is activated when the breakdown voltage of the output Zener diode is exceeded. To avoid voltage spikes from harming the internal power switch, an RC network is attached to the IC's drain. The IC contains an inbuilt 6.4V Zener diode that restricts the drain-source voltage to safe levels. Internally, the switch's current is limited to 500mA.
TNY268PN Package
Power Integrations is a leading supplier of high-performance electronic components used in high-voltage power-conversion systems. Our integrated circuits and diodes enable compact, energy-efficient AC-DC power supplies for a vast range of electronic products including mobile devices, TVs, PCs, power tools, smart appliances (IoT), smart utility meters and LED lights.
Power Integrations TNY268PN technical specifications, attributes, parameters and parts with similar specifications to Power Integrations TNY268PN.
Power Integrations TNY268PN technical specifications, attributes, parameters and parts with similar specifications to Power Integrations TNY268PN.
| Product Attribute | Attribute Value | |
|---|---|---|
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | 8-DIP (0.300, 7.62mm), 7 Leads | |
| Number of Pins | 8Pins | |
| Weight | 2.26799g | |
| Operating Temperature | -40°C~150°C TJ | |
| Packaging | Tube | |
| Series | TinySwitch®-II | |
| JESD-609 Code | e3 | |
| Pbfree Code | yes | |
| Part Status | Not For New Designs | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 7Terminations | |
| ECCN Code | EAR99 | |
| Terminal Finish | Matte Tin (Sn) | |
| Max Power Dissipation | 23W | |
| Terminal Position | DUAL |
| Product Attribute | Attribute Value | |
|---|---|---|
| Number of Functions | 1Function | |
| Terminal Pitch | 2.54mm | |
| Frequency | 132kHz | |
| Pin Count | 8 | |
| JESD-30 Code | R-PDIP-T7 | |
| Number of Outputs | 1Output | |
| Output Voltage | 700V | |
| Output Type | Adjustable | |
| Max Output Current | 880mA | |
| Analog IC - Other Type | SWITCHING REGULATOR | |
| Operating Supply Current | 380μA | |
| Output Current | 880mA | |
| Output Power | 15W | |
| Control Features | EN | |
| Topology | Flyback | |
| Control Technique | PULSE WIDTH MODULATION | |
| Switcher Configuration | SINGLE |
| Product Attribute | Attribute Value | |
|---|---|---|
| Internal Switch(s) | Yes | |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Short Circuit | |
| Max Duty Cycle | 68 % | |
| Max Supply Voltage (AC) | 265V | |
| Drain to Source Resistance | 5.2Ohm | |
| Duty Cycle | 65% | |
| Output Isolation | Isolated | |
| Min Supply Voltage (AC) | 85V | |
| Height | 3.68mm | |
| Length | 9.83mm | |
| Width | 6.6mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | RoHS Compliant | |
| Lead Free | Lead Free |
Download datasheets and manufacturer documentation for TNY268PN
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