TNY263_04 POWERINT [Power Integrations, Inc.], TNY263_04 Datasheet

TNY263_04

Manufacturer Part Number

TNY263_04

Description

Enhanced, Energy Efficient, Low Power Off-line Switcher

Manufacturer

POWERINT [Power Integrations, Inc.]

Datasheet

1.TNY263_04.pdf (24 pages)

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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)

• 132 kHz operation reduces transformer size–allows use of

• 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 Blue Angel, Energy Star, and EC 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

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 TinySwitch-II devices incorporate

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

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

safety

–Extremely Energy Efficient

Product Highlights

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.

Table 1. Notes: 1. Typical continuous power in a non-ventilated enclosed

adapter measured at 50 °C ambient. 2. Maximum 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. See Part Ordering Information.

TNY263P or G

TNY264P or G

TNY265P or G

TNY266P or G

TNY267P or G

TNY268P or G

Wide-Range

HV DC Input

TinySwitch-II

PRODUCT

OUTPUT POWER TABLE

(3)

Adapter

UV Resistor

5.5 W

8.5 W

10 W

13 W

16 W

Optional

230 VAC

5 W

EN/UV

(1)

Frame

7.5 W

Open

11 W

15 W

19 W

23 W

9 W

15%

(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 2004

4.7 W

7.5 W

9.5 W

12 W

15 W

Open

6 W

(2)

Related parts for TNY263_04

TNY263_04 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 noise with ...

Page 2

TNY263-268 BYPASS (BP) LINE UNDER-VOLTAGE 240 µA 50 µA 6.3 V ENABLE JITTER 1 OSCILLATOR ENABLE/ UNDER- 1.0 V 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 large hysteresis of 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 ...

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 optocoupler ...

Page 6

TNY263-268 V EN CLOCK D MAX I DRAIN V DRAIN Figure 9. TinySwitch-II Operation at Very Light Load. applications with and without an external resistor (2 MΩ) connected to the EN/UV pin. During power-down, when an external resistor is used, ...

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 is always powered from the input high voltage, it therefore does not rely on bias winding voltage. Consequently this greatly simplifies designing chargers that must work down to zero volts on the output. 2.5 W CV/CC Cell-Phone Charger As ...

Page 9

PERFORMANCE SUMMARY Continuous Output Power: 10.24 W Efficiency: ≥ 75% 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 ...

Page 13

DRAIN Voltage ....................................... - 0 700 V Peak DRAIN Current (TNY263) ........................... 400 mA Peak DRAIN Current (TNY264) ........................... 400 mA Peak DRAIN Current (TNY265) ........................... 440 mA Peak DRAIN Current (TNY266) ........................... 560 mA Peak DRAIN Current ...

Page 14

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

Page 15

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

Page 16

TNY263-268 NOTES: A. Total current consumption is the sum of I and the sum of I and I when EN/UV pin is open (MOSFET switching). S2 DSS B Since the output MOSFET is switching difficult to isolate the ...

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 90% DRAIN VOLTAGE 10 Figure 19. ...

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 .014 (.36) ⊕ T ...

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 .372 (9.45) .388 (9.86) ⊕ .010 (.25) ...

Page 22

TNY263-268 22 E 4/04 ...

Page 23

Revision Notes - A 1) Corrected first page spacing and sentence in description describing innovative design Corrected Frequency Jitter in Figure 4 and Frequency Jitter in Parameter Table. 3) Added last sentence to Over Temperature Protection section. 4) ...

Page 24

TNY263-268 For the latest updates, visit our Web site: www.powerint.com Power Integrations may make changes to its products at any time. Power Integrations has no liability arising from your use of any information, device or circuit described herein nor does ...

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