LNK305P datasheet, PDF - EEWORLD Datasheet

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LNK305P: Description0.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8; CategoryPower/power management The power supply circuit; File Size907KB，18 Pages; ManufacturerPower Integrations; Websitehttps://www.powerint.cn

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LNK305P Overview

0.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8

LNK305P Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Power Integrations
Parts packaging code	DIP
package instruction	PLASTIC, DIP-8
Contacts	8
Reach Compliance Code	unknown
ECCN code	EAR99
Other features	REQUIRES AN AC SUPPLY OF 85 TO 256V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR
Control Technology	PULSE WIDTH MODULATION
JESD-30 code	R-PDIP-T8
JESD-609 code	e0
length	9.575 mm
Number of functions	1
Number of terminals	8
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Maximum output current	0.8 A
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	3.68 mm
surface mount	NO
Switch configuration	BUCK
Maximum switching frequency	70 kHz
Temperature level	AUTOMOTIVE
Terminal surface	TIN LEAD
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	6.35 mm

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LNK302/304-306

™

LinkSwitch-TN

Family

Lowest Component Count, Energy-Efficient

Off-Line Switcher IC

Product Highlights

Cost Effective Linear/Cap Dropper Replacement

•

Lowest cost and component count buck converter solution

•

Fully integrated auto-restart for short-circuit and open loop

fault protection – saves external component costs

•

LNK302 uses a simplified controller without auto-restart for

very low system cost

•

66 kHz operation with accurate current limit – allows low cost

off-the-shelf 1 mH inductor for up to 120 mA output current

•

Tight tolerances and negligible temperature variation

•

High breakdown voltage of 700 V provides excellent input

surge withstand

•

Frequency jittering dramatically reduces EMI (~10 dB)

•

Minimizes EMI filter cost

•

High thermal shutdown temperature (+135

°C

minimum)

Much Higher Performance Over Discrete Buck and

Passive Solutions

•

Supports buck, buck-boost and flyback topologies

•

System level thermal overload, output short-circuit and open

control loop protection

•

Excellent line and load regulation even with typical configuration

•

High bandwidth provides fast turn-on with no overshoot

•

Current limit operation rejects line ripple

•

Universal input voltage range (85 VAC to 265 VAC)

•

Built-in current limit and hysteretic thermal protection

•

Higher efficiency than passive solutions

•

Higher power factor than capacitor-fed solutions

•

Entirely manufacturable in SMD

EcoSmart

™

– Extremely Energy Efficient

•

Consumes typically only 50/80 mW in self-powered buck

topology at 115/230 VAC input with no-load (opto feedback)

•

Consumes typically only 7/12 mW in flyback topology with

external bias at 115/230 VAC input with no-load

•

Meets California Energy Commission (CEC), Energy Star, and

EU requirements

Applications

•

Appliances and timers

•

LED drivers and industrial controls

Wide Range LinkSwitch-TN

High-Voltage

DC Input

Output

PI-3492-041509

Figure 1.

Typical Buck Converter Application (See Application Examples Section

for Other Circuit Configurations).

Output Current Table

Product

LNK302P/G/D

LNK304P/G/D

LNK305P/G/D

LNK306P/G/D

230 VAC ±15%

MDCM

63 mA

120 mA

175 mA

225 mA

CCM

80 mA

170 mA

280 mA

360 mA

85-265 VAC

MDCM

63 mA

120 mA

175 mA

225 mA

CCM

80 mA

170 mA

280 mA

360 mA

Table 1. Output Current Table.

Notes:

1. Typical output current in a non-isolated buck converter. Output power capability

depends on respective output voltage. See Key Applications Considerations

Section for complete description of assumptions, including fully discontinuous

conduction mode (DCM) operation.

2. Mostly discontinuous conduction mode.

3. Continuous conduction mode.

4. Packages: P: DIP-8B, G: SMD-8B, D: SO-8C.

Description

LinkSwitch-TN is specifically designed to replace all linear and

capacitor-fed (cap dropper) non-isolated power supplies in the

under 360 mA output current range at equal system cost while

offering much higher performance and energy efficiency.

LinkSwitch-TN devices integrate a 700 V power MOSFET,

oscillator, simple On/Off control scheme, a high-voltage switched

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

www.powerint.com

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

and operating power are derived directly from the voltage on the

DRAIN pin, eliminating the need for a bias supply and associated

circuitry in buck or flyback converters. The fully integrated

auto-restart circuit in the LNK304-306 safely limits output power

during fault conditions such as short-circuit or open loop,

reducing component count and system-level load protection

cost. A local supply provided by the IC allows use of a non-

safety graded optocoupler acting as a level shifter to further

enhance line and load regulation performance in buck and

buck-boost converters, if required.

June 2013

This Product is Covered by Patents and/or Pending Patent Applications.

LNK305P Related Products

	LNK305P	LNK302	LNK302P	LNK304P	LNK306G	LNK302G
Description	0.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8	0.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8	0.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8	0.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8	0.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8	0.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8
Control Technology	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Number of functions	1	1	1	1	1	1
Number of terminals	8	8	8	8	8	8
Maximum operating temperature	125 °C	125 Cel	125 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 Cel	-40 °C	-40 °C	-40 °C	-40 °C
Maximum output current	0.8 A	0.4000 A	0.2 A	0.4 A	1.4 A	0.2 A
surface mount	NO	Yes	NO	NO	YES	YES
Switch configuration	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK
Maximum switching frequency	70 kHz	70 kHz	70 kHz	70 kHz	70 kHz	70 kHz
Temperature level	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
Terminal form	THROUGH-HOLE	GULL WING	THROUGH-HOLE	THROUGH-HOLE	GULL WING	GULL WING
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Is it lead-free?	Contains lead	-	Contains lead	Contains lead	Contains lead	Contains lead
Is it Rohs certified?	incompatible	-	incompatible	incompatible	incompatible	incompatible
Maker	Power Integrations	-	Power Integrations	Power Integrations	Power Integrations	Power Integrations
Parts packaging code	DIP	-	DIP	DIP	SOIC	SOIC
package instruction	PLASTIC, DIP-8	-	PLASTIC, DIP-8	PLASTIC, DIP-8	PLASTIC SURFACE MOUNT, DIP-8	PLASTIC SURFACE MOUNT, DIP-8
Contacts	8	-	8	8	8	8
Reach Compliance Code	unknown	-	unknown	unknown	unknown	unknow
ECCN code	EAR99	-	EAR99	EAR99	EAR99	EAR99
Other features	REQUIRES AN AC SUPPLY OF 85 TO 256V	-	REQUIRES AN AC SUPPLY OF 85 TO 256V	REQUIRES AN AC SUPPLY OF 85 TO 256V	REQUIRES AN AC SUPPLY OF 85 TO 256V	REQUIRES AN AC SUPPLY OF 85 TO 256V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR	-	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR
JESD-30 code	R-PDIP-T8	-	R-PDIP-T8	R-PDIP-T8	R-PDSO-G8	R-PDSO-G8
length	9.575 mm	-	9.575 mm	9.575 mm	9.575 mm	9.575 mm
Package body material	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	DIP	-	DIP	DIP	SOP	SOP
Package shape	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	IN-LINE	-	IN-LINE	IN-LINE	SMALL OUTLINE	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	-	NOT SPECIFIED	NOT SPECIFIED	225	225
Certification status	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	3.68 mm	-	3.68 mm	3.68 mm	3.68 mm	3.68 mm
Terminal pitch	2.54 mm	-	2.54 mm	2.54 mm	2.54 mm	2.54 mm
Maximum time at peak reflow temperature	NOT SPECIFIED	-	NOT SPECIFIED	NOT SPECIFIED	30	30
width	6.35 mm	-	6.35 mm	6.35 mm	6.35 mm	6.35 mm

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