Manufacturer Part NumberTNY266PN
ManufacturerPower Integrations
TNY266PN datasheets

Specifications of TNY266PN

Output IsolationIsolatedFrequency Range124 ~ 140kHz
Voltage - Output700VPower (watts)15W
Operating Temperature-40°C ~ 150°CPackage / Case8-DIP (0.300", 7.62mm), 7 Leads
Output Voltage5.8 VInput / Supply Voltage (max)265 VAC
Input / Supply Voltage (min)85 VACDuty Cycle (max)68 %
Switching Frequency132 KHzSupply Current265 uA
Operating Temperature Range- 40 C to + 150 CMounting StyleThrough Hole
Supply Voltage265VACDigital Ic Case StyleDIP
No. Of Pins8No. Of Regulated Outputs1
Filter TerminalsDIPRohs CompliantYes
On Resistance Rds(on)14ohmLead Free Status / RoHS StatusLead free / RoHS Compliant
Other names596-1051-5  
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TinySwitch-II Family
Enhanced, Energy Efficient,
Low Power Off-line Switcher
Product Highlights
TinySwitch-II Features Reduce System Cost
• Fully integrated auto-restart for short circuit and open
loop fault protection – saves external component costs
• Built-in circuitry practically eliminates audible noise with
ordinary dip-varnished transformer
• Programmable line under-voltage detect feature prevents
power on/off glitches – saves external components
• Frequency jittering dramatically reduces EMI (~10 dB)
– minimizes EMI filter component costs
132 kHz operation reduces transformer size – allows use
of EF12.6 or EE13 cores for low cost and small size
• 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
Better Cost/Performance over RCC & Linears
• Lower system cost than RCC, discrete PWM and other
integrated/hybrid solutions
• Cost effective replacement for bulky regulated linears
• Simple ON/OFF control – no loop compensation needed
• No bias winding – simpler, lower cost transformer
• Simple design practically eliminates rework in
– Extremely Energy Efficient
• No load consumption <50 mW with bias winding and
<250 mW without bias winding at 265 VAC input
• Meets California Energy Commission (CEC), Energy
Star, and EU requirements
• Ideal for cell-phone charger and PC standby applications
High Performance at Low Cost
• High voltage powered – ideal for charger applications
• High bandwidth provides fast turn on with no overshoot
• Current limit operation rejects line frequency ripple
• Built-in current limit and thermal protection improves
TinySwitch-II integrates a 700 V power MOSFET, oscillator,
high voltage switched current source, current limit and
thermal shutdown circuitry onto a monolithic device. The
start-up and operating power are derived directly from
the voltage on the DRAIN pin, eliminating the need for
a bias winding and associated circuitry. In addition, the
HV DC Input
Figure 1. Typical Standby Application.
TNY263 P or G
TNY264 P or G
TNY265 P or G
TNY266 P or G
TNY267 P or G
TNY268 P or G
Table 1. Notes: 1. Minimum continuous power in a typical
non-ventilated enclosed adapter measured at 50 °C ambient.
2. Minimum practical continuous power in an open frame
design with adequate heat sinking, measured at 50 °C
ambient (See Key Applications Considerations). 3. Packages:
P: DIP-8B, G: SMD-8B. For lead-free package options, see Part
Ordering Information.
TinySwitch-II devices incorporate auto-restart, line under-
voltage sense, and frequency jittering. An innovative design
minimizes audio frequency components in the simple ON/OFF
control scheme to practically eliminate audible noise with
standard taped/varnished transformer construction. The fully
integrated auto-restart circuit safely limits output power during
fault conditions such as output short circuit or open loop,
reducing component count and secondary feedback circuitry
cost. An optional line sense resistor externally programs a line
under-voltage threshold, which eliminates power down glitches
caused by the slow discharge of input storage capacitors present
in applications such as standby supplies. The operating frequency
of 132 kHz is jittered to significantly reduce both the quasi-peak
and average EMI, minimizing filtering cost.
UV Resistor
230 VAC ±15%
85-265 VAC
5 W
7.5 W
3.7 W
5.5 W
9 W
4 W
8.5 W
11 W
5.5 W
10 W
15 W
6 W
13 W
19 W
8 W
16 W
23 W
10 W
DC Output
4.7 W
6 W
7.5 W
9.5 W
12 W
15 W
April 2005

TNY266PN Summary of contents

  • Page 1

    TNY263-268 TinySwitch-II Family Enhanced, Energy Efficient, Low Power Off-line Switcher Product Highlights TinySwitch-II Features Reduce System Cost • Fully integrated auto-restart for short circuit and open loop fault protection – saves external component costs • Built-in circuitry practically eliminates audible ...

  • Page 2

    TNY263-268 BYPASS (BP) LINE UNDER-VOLTAGE 240 µA 50 µA ENABLE JITTER 1 OSCILLATOR ENABLE/ UNDER- VOLTAGE (EN/UV) Figure 2. Functional Block Diagram. Pin Functional Description DRAIN (D) Pin: Power MOSFET drain connection. Provides internal operating current ...

  • Page 3

    TinySwitch-II Functional Description TinySwitch-II combines a high voltage power MOSFET switch with a power supply controller in one device. Unlike conventional PWM (pulse width modulator) controllers, TinySwitch-II uses a simple ON/OFF control to regulate the output voltage. The TinySwitch-II controller ...

  • Page 4

    TNY263-268 70 °C (typical) is provided to prevent overheating of the PC board due to a continuous fault condition. Current Limit The current limit circuit senses the current in the power MOSFET. When this current exceeds the internal threshold (I ...

  • Page 5

    SOURCE pin. The optocoupler LED is connected in series with a Zener diode across the DC output voltage to be regulated. When the output voltage exceeds the target regulation voltage level (optocoupler LED voltage drop plus Zener voltage), the ...

  • Page 6

    TNY263-268 V EN CLOCK D MAX I DRAIN V DRAIN Figure 9. TinySwitch-II Operation at Very Light Load. During power-down, when an external resistor is used, the power MOSFET will switch for 50 ms after the output loses regulation. The ...

  • Page 7

    D1 1N4005 D2 1N4005 C1 3.3 µF 85-265 400 V VAC RF1 8.2 Ω Fusible R1 1.2 kΩ 1N4005 1N4005 L1 2.2 mH Figure 14. 2.5 W Constant Voltage, Constant Current Battery Charger with Universal Input (85-265 VAC). ...

  • Page 8

    TNY263-268 2.5 W CV/CC Cell-Phone Charger As an example, Figure 14 shows a TNY264 based 5 V, 0.5 A, cellular phone charger operating over a universal input range (85 VAC to 265 VAC). The inductor (L1) forms a π-filter in ...

  • Page 9

    PERFORMANCE SUMMARY Continuous Output Power: 10.24 W ≥ 75% Efficiency: 140-375 VDC INPUT C1 0.01 µ TNY266P +12 VDC µ Figure 15 Standby Supply. PERFORMANCE ...

  • Page 10

    TNY263-268 Key Application Considerations TinySwitch-II vs. TinySwitch Table 2 compares the features and performance differences between the TNY254 device of the TinySwitch family with the TinySwitch-II family of devices. Many of the new features eliminate the need for or reduce ...

  • Page 11

    A secondary output with a Schottky rectifier diode. 3. Assumed efficiency of 77% (TNY267 & TNY268), 75% (TNY265 & TNY266) and 73% (TNY263 & TNY264). 4. The parts are board mounted with SOURCE pins soldered to ...

  • Page 12

    ... TNY263-268 Input Filter Capacitor + HV — TOP VIEW C BP Figure 17. Recommended Circuit Board Layout for TinySwitch-II with Under-Voltage Lock Out Resistor. PC Board Cleaning Power Integrations does not recommend the use of “no clean” flux 4/05 Safety Spacing Y1- Capacitor PRI TinySwitch-II Opto- coupler ...

  • Page 13

    DRAIN Voltage .................................. ................ -0 700 V DRAIN Peak Current: TNY263......................................400 mA TNY264......................................400 mA TNY265......................................440 mA TNY266......................................560 mA TNY267......................................720 mA TNY268......................................880 mA EN/UV Voltage ................................................ -0 EN/UV Current .................................................... 100 mA BYPASS Voltage .................................................. ...

  • Page 14

    TNY263-268 Parameter Symbol CONTROL FUNCTIONS (cont.) BYPASS Pin V Voltage BP BYPASS Pin V Voltage Hysteresis BPH EN/UV Pin Line Under-Voltage I LUV Threshold CIRCUIT PROTECTION Current Limit I LIMIT Initial Current Limit I INIT Leading Edge t Blanking Time ...

  • Page 15

    Parameter Symbol OUTPUT ON-State R Resistance DS(ON) OFF-State Drain I Leakage Current DSS Breakdown BV Voltage DSS Rise Time t R Fall Time t F Drain Supply Voltage Output EN/UV t Delay EN/UV Output Disable t Setup Time DST Auto-Restart ...

  • Page 16

    TNY263-268 NOTES: A. Total current consumption is the sum of I switching) and the sum of I and Since the output MOSFET is switching difficult to isolate the switching current from the supply current at ...

  • Page 17

    D EN/ NOTE: This test circuit is not applicable for current limit or output characteristic measurements. Figure 18. TinySwitch-II General Test Circuit. Figure 19. TinySwitch-II Duty Cycle Measurement. 470 Ω 470 Ω S1 ...

  • Page 18

    TNY263-268 Typical Performance Characteristics 1.1 1.0 0.9 -50 - 100 125 150 Junction Temperature (°C) Figure 22. Breakdown vs. Temperature. 1.2 1 TNY263 0.8 TNY264-266 TNY267 TNY268 0.6 0.4 0 Temperature (°C) ...

  • Page 19

    Typical Performance Characteristics (cont.) 1000 100 Scaling Factors: TNY263 TNY264 TNY265 TNY266 10 TNY267 TNY268 1 0 100 200 300 Drain Voltage (V) Figure 28. C vs. Drain Voltage. OSS 1.0 1.0 1.5 15 2.0 3.5 ...

  • Page 20

    TNY263-268 PART ORDERING INFORMATION TNY 264 ⊕ .004 (.10) -E- .240 (6.10) .260 (6.60) Pin 1 .367 (9.32) -D- .387 (9.83) .125 (3.18) .145 (3.68) -T- SEATING PLANE .100 (2.54) BSC .048 (1.22) .053 ...

  • Page 21

    D S .004 (.10) -E- .240 (6.10) .260 (6.60) Pin 1 .100 (2.54) (BSC) .367 (9.32) -D- .387 (9.83) .125 (3.18) .145 (3.68) .032 (.81) .048 (1.22) .037 (.94) .053 (1.35) SMD-8B .137 (3.48) MINIMUM .372 (9.45) .388 (9.86) ...

  • Page 22

    TNY263-268 22 G 4/05 ...

  • Page 23

    Revision Notes Corrected first page spacing and sentence in description describing innovative design. 2) Corrected Frequency Jitter in Figure 4 and Frequency Jitter in Parameter Table. 3) Added last sentence to Over Temperature Protection section. 4) ...

  • Page 24

    ... For the latest updates, visit our website: www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein. POWER INTEGRATIONS MAKES NO WARRANTY HEREIN AND SPECIFICALLY DISCLAIMS ALL WARRANTIES INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS ...