TNY266 Power Integrations, Inc., TNY266 Datasheet

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TNY266

Manufacturer Part Number
TNY266
Description
Manufacturer
Power Integrations, Inc.
Datasheet

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TinySwitch-II Features Reduce System Cost
• Fully integrated auto-restart for short circuit and open
• Built-in circuitry practically eliminates audible noise with
• Programmable line under-voltage detect feature prevents
• Frequency jittering dramatically reduces EMI (~10 dB)
• Very tight tolerances and negligible temperature variation
• 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
• 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
EcoSmart
• No load consumption <50 mW with bias winding and
• Meets California Energy Commission (CEC), Energy
• 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
Description
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
TNY263-268
TinySwitch-II Family
Enhanced, Energy Efficient,
Low Power Off-line Switcher
loop fault protection – saves external component costs
ordinary dip-varnished transformer
power on/off glitches – saves external components
– 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
on key parameters eases design and lowers cost
integrated/hybrid solutions
manufacturing
<250 mW without bias winding at 265 VAC input
Star, and EU requirements
safety
®
– Extremely Energy Efficient
Product Highlights
®
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.
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
Wide-Range
HV DC Input
PRODUCT
TinySwitch-II
+
-
OUTPUT POWER TABLE
3
Adapter
UV Resistor
5.5 W
8.5 W
230 VAC ±15%
10 W
13 W
16 W
Optional
D
S
5 W
EN/UV
BP
1
Frame
7.5 W
Open
15 W
19 W
23 W
11 W
9 W
2
Adapter
3.7 W
5.5 W
10 W
4 W
6 W
8 W
85-265 VAC
1
DC Output
PI-2684-101700
Frame
April 2005
Open
4.7 W
7.5 W
9.5 W
12 W
15 W
6 W
+
-
2

Related parts for TNY266

TNY266 Summary of contents

Page 1

... Figure 1. Typical Standby Application. PRODUCT TNY263 TNY264 TNY265 TNY266 TNY267 TNY268 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) ...

Page 2

TNY263-268 BYPASS (BP) LINE UNDER-VOLTAGE 240 µA 50 µA 6.3 V ENABLE JITTER 1 OSCILLATOR ENABLE/ 1.0 V UNDER- VOLTAGE (EN/UV) Figure 2. Functional Block Diagram. Pin Functional Description DRAIN (D) Pin: Power MOSFET drain connection. ...

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

... Figures 15 and 16 show examples of circuits for standby applications. They both provide two outputs: an isolated 5 V and primary referenced output. The first, using TNY266P, provides 10 W, and the second, using TNY267P output power. Both operate from an input range of 140 VDC to 375 VDC, corresponding to a 230 VAC or 100/115 VAC with doubler input ...

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 SUMMARY Continuous Output Power: 15.24 W ≥ 78% Efficiency: 140-375 VDC INPUT C1 0.01 µ TNY267P D2 1N4148 +12 VDC µF ...

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 sufficient area of copper to keep the die temperature at or below 100 °C. ...

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 ...

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 .................................................. -0 Storage Temperature ......................................-65 °C to 150 °C Thermal Impedance Package: ) ........................... 70 °C/W (θ JA (θ ) ............................................... 11 °C/W ...

Page 14

... See Note E J TNY264 di/ mA/µ °C See Note E J TNY265 di/ mA/µ °C See Note E J TNY266 di/ mA/µ °C See Note E J TNY267 di/ mA/µ °C See Note E J TNY268 di/dt = 110 mA/µ °C ...

Page 15

... °C TNY264 100 ° °C TNY265 100 ° °C TNY266 100 ° °C TNY267 100 ° °C TNY268 100 °C ...

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

... TNY265 55 mA/µs 275 mA 0.4 TNY266 70 mA/µs 350 mA TNY267 90 mA/µs 450 mA 0.2 TNY268 110 mA/µs 550 Normalized di/ °C T CASE = 100 °C T CASE Scaling Factors: TNY263 0.85 TNY264 1.0 TNY265 1.5 TNY266 2.0 TNY267 3.5 TNY268 5 Drain Voltage ( ...

Page 19

... Figure 28. C vs. Drain Voltage. OSS 1.0 1.0 1.5 15 2.0 3.5 10 5.5 0 400 500 600 Figure 29. Drain Capacitance Power. 1.2 1.0 0.8 0.6 0.4 0.2 0 -50 - Junction Temperature (°C) Figure 30. Under-voltage Threshold vs. Temperature. TNY263-268 Scaling Factors: TNY263 1.0 TNY264 1.0 TNY265 1.5 TNY266 2.0 TNY267 3.5 TNY268 5 200 400 Drain Voltage (V) 100 125 600 19 G 4/05 ...

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

... The PI logo, TOPSwitch, TinySwitch, LinkSwitch, DPA-Switch, EcoSmart, PI Expert and PI FACTS are trademarks of Power Integrations, Inc. Other trademarks are property of their respective companies. ©Copyright 2005, Power Integrations, Inc. Power Integrations Worldwide Sales Support Locations ...

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