LNK354PN Power Integrations, LNK354PN Datasheet

LNK354PN

Manufacturer Part Number

LNK354PN

Description

IC OFFLINE SWIT OCP HV 8DIP

Manufacturer

Power Integrations

Series

LinkSwitch®-HFr

Type

Off Line Switcherr

Datasheet

1.LNK353GN-TL.pdf (16 pages)

Specifications of LNK354PN

Output Isolation

Isolated

Frequency Range

186 ~ 214kHz

Voltage - Output

700V

Power (watts)

Operating Temperature

-40°C ~ 150°C

Package / Case

8-DIP (0.300", 7.62mm), 7 Leads

Output Voltage

5.8 V

Input / Supply Voltage (max)

265 VAC

Input / Supply Voltage (min)

85 VAC

Duty Cycle (max)

63 %

Switching Frequency

132 KHz

Supply Current

280 uA

Operating Temperature Range

- 40 C to + 150 C

Mounting Style

Through Hole

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LNK354PN

Manufacturer:

power

Quantity:

15 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LNK354PN

Manufacturer:

POWER

Quantity:

20 000

Company:

Allchip Electronic(HK) Limited

Part Number:

LNK354PN

Manufacturer:

POWER

Quantity:

10 992

Company:

H&T Electronics

Part Number:

LNK354PN

Quantity:

18 200

Current page: 1 of 16
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Features Optimized for Lowest System Cost

•

Much Better Performance over Linear/RCC

•

EcoSmart

•

Applications

•

Description

LinkSwitch-HF integrates a 700 V power MOSFET, oscillator,

simple ON/OFF control scheme, a high voltage switched current

LNK353/354

LinkSwitch-HF Family

Enhanced, Energy Efﬁcient, Low Power

Off-Line Switcher IC

Fully integrated auto-restart for short-circuit and open

loop protection

Self-biased supply – saves transformer auxiliary winding

and associated bias supply components

Tight tolerances and negligible temperature variation on

key parameters eases design and lowers cost

High maximum switching frequency allows very low

ﬂux density transformer designs, practically eliminating

audible noise

Frequency jittering greatly reduces EMI

Packages with large creepage to high voltage pin

Lowest component count switcher solution

Lower system cost than RCC, discrete PWM and other

integrated solutions

Universal input range allows worldwide operation

Simple ON/OFF control – no loop compensation needed

No bias winding – simpler, lower cost transformer

High frequency switching – smaller and lower cost

transformer

Very low component count – higher reliability and single

side printed circuit board

High bandwidth provides fast turn on with no overshoot

and excellent transient load response

Current limit operation rejects line frequency ripple

Built-in current limit and hysteretic thermal shutdown

protection

No-load consumption <300 mW without bias winding at

265 VAC input

Meets California Energy Commission (CEC), Energy

Star, and EU requirements

Chargers for cell/cordless phones, PDAs, digital cameras,

MP3/portable audio devices, shavers etc.

Standby and auxiliary supplies

– Extremely Energy Efﬁcient

Product Highlights

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. 3. Packages: P: DIP-8B,

G: SMD-8B. For lead-free package options, see Part Ordering

Information. 4. For designs without a Y capacitor, the available power

may be lower (see Key Applications Considerations).

source, frequency jittering, cycle-by-cycle current limit, and

thermal shutdown circuitry onto a monolithic IC. The start-up

and operating power are derived directly from the DRAIN pin,

eliminating the need for a bias winding and associated circuitry.

The 200 kHz maximum switching frequency allows very

low ﬂux transformer designs, practically eliminating audible

noise with the simple ON/OFF control scheme using standard

varnished transformer construction. Efﬁcient operation at this

high switching frequency is achieved due to the optimized

switching characteristics and small capacitances of the integrated

power MOSFET. 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. The internal oscillator frequency is

jittered to signiﬁcantly reduce both the quasi-peak and average

EMI, minimizing ﬁltering cost.

Figure 1. Typical Standby Application.

LNK353 P or G

LNK354 P or G

PRODUCT

HV DC Input

Wide Range

LinkSwitch-HF

OUTPUT POWER TABLE

(3)

Adapter

230 VAC ±15%

3.5 W

3 W

(1)

Frame

Open

4 W

5 W

(2)

Adapter

2.5 W

3 W

85-265 VAC

(4)

February 2005

(1)

Output

PI-3855-022704

Frame

4.5 W

Open

3 W

(2)

Related parts for LNK354PN

LNK354PN Summary of contents

Page 1

LNK353/354 LinkSwitch-HF Family Enhanced, Energy Efﬁcient, Low Power Off-Line Switcher IC Product Highlights Features Optimized for Lowest System Cost • Fully integrated auto-restart for short-circuit and open loop protection • Self-biased supply – saves transformer auxiliary winding and associated bias ...

Page 2

LNK353/354 BYPASS (BP) 6.3 V JITTER OSCILLATOR FEEDBACK 1. (FB) Figure 2. Functional Block Diagram. Pin Functional Description DRAIN (D) Pin: Power MOSFET drain connection. Provides internal operating current for both start-up and steady-state operation. BYPASS (BP) ...

Page 3

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

Page 4

LNK353/354 D1 D2 1N4005 1N4005 RF1 8.2 Ω 2 4.7 µF 85-265 VAC 400 1N4005 1N4005 Figure 5. Universal Input, 5.7 V, 400 mA, Constant Voltage, Constant Current Battery Charger ...

Page 5

Key Application Considerations LinkSwitch-HF Design Considerations Output Power Table Data sheet maximum output power table (Table 1) represents the maximum practical continuous output power level that can be obtained under the following assumed conditions: 1. The minimum DC input voltage ...

Page 6

... Under low line, maximum power, does not exceed a maximum LinkSwitch-HF SOURCE pin temperature of DS 100 °C is recommended to allow for these variations. Design Tools Up-to-date information on design tools can be found at the Power Integrations website: www.powerint.com. Input Filter Capacitor Y1- Capacitor m PRI ...

Page 7

DRAIN Voltage .................................. ................ -0 700 V Peak DRAIN Current......................................400 mA (750 mA) FEEDBACK Voltage ................................................ -0 FEEDBACK Current .................................................... 100 mA BYPASS Voltage...................................................... -0 Storage Temperature .......................................... -65 °C ...

Page 8

LNK353/354 Parameter Symbol CONTROL FUNCTIONS (cont) BYPASS Pin I Supply Current BPSC CIRCUIT PROTECTION I LIMIT Current Limit (See Note E) Minimum On Time t ON(MIN) Leading Edge t Blanking Time LEB Thermal Shutdown T SD Temperature Thermal Shutdown T ...

Page 9

Parameter Symbol OUTPUT (cont) DRAIN Supply Voltage Output Enable t Delay EN Output Disable t Setup Time DST Auto-Restart t ON-Time AR Auto-Restart Duty DC Cycle AR NOTES: A. Total current consumption is the sum of I switching) and the ...

Page 10

LNK353/354 Figure 7. LinkSwitch-HF General Test Circuit 90% DRAIN VOLTAGE 10 Figure 8. LinkSwitch-HF Duty Cycle Measurement 2/05 470 Ω ...

Page 11

Typical Performance Characteristics 1.1 1.0 0.9 -50 - 100 125 150 Junction Temperature (°C) Figure 10. Breakdown vs. Temperature. 1.4 1.2 1.0 0.8 Normalized di/dt 0.6 0.4 0 Temperature (°C) Figure 12. ...

Page 12

LNK353/354 Typical Performance Characteristics (cont.) PART ORDERING INFORMATION LNK 354 2/05 1000 100 100 200 300 400 500 Drain Voltage (V) Figure 16. C vs. Drain Voltage. OSS LinkSwitch Product Family ...

Page 13

D S .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 (1.35) .014 (.36) ⊕ .010 (.25) ...

Page 14

LNK353/354 14 F 2/05 Notes ...

Page 15

Notes LNK353/354 15 F 2/05 ...

Page 16

... 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 ...

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