littelfuse 在电机和功率控制的电路保护方案 · this, the protection devices need to be...

1 Confidential and Proprietary to Littelfuse. Littelfuse, Inc. © 2014 PROTECT | CONTROL | SENSE 1

Littelfuse 在电机和功率控制的电路保护方案

2014, V3.0-A

2 Confidential and Proprietary to Littelfuse. Littelfuse, Inc. © 2014 PROTECT | CONTROL | SENSE 2 Confidential and Proprietary to Littelfuse. Littelfuse, Inc. © 2014 PROTECT | CONTROL | SENSE

Agenda

1.Littelfuse Thyristor Fuse and MOV for Power Control System 2.Littelfuse TVS used on Power System 3.Littelfuse SPA Products used on I/O and others 4.Application on Different Ports Protection


Littelfuse Circuit Protection Protection against Common Threats to

Electrical Circuits & Components

Overcurrent Protection

Overvoltage Protection

Power Monitoring and Protective Switching

Power Cross

Overloads & Short Circuits

ESD Protection

Lightning Protection

Every product that uses electrical energy needs circuit protection to ensure safety, reliability and performance.

Ground-Fault Protection

Power Switching

Power Distribution and Control

Mining Control Consoles

Power Distribution Centers

V3.0-A


Corporate Mission: 2013 to 2017

Leverage our global leadership position in circuit protection to double our business by 2017 and become a leader in power control and sensing.

Mission

PROTECT CONTROL SENSE

V3.0-A


Littelfuse Circuit Protection We Are the #1 Circuit Protection Brand in the World

We provide:

Broadest selection of overvoltage and overcurrent protection devices Unparalleled level of application design expertise Technical support & application design help materials Product samples Global labs and testing services

V3.0-A


Littelfuse Semiconductor Semiconductor Circuit Protection & Power Control Expertise

The Preferred Brand of Engineers for Circuit Protection

Leading Manufacturer of TVS Diode, TVS Diode Array, Protection & Power Switching Thyristor, PLED

40+ Years of Technical Expertise in Application-Based Development & Solutions

2013

V3.0-A


Littelfuse Semiconductor Product Overview Including the

Broadest Line of Semiconductor Protection Solutions • Load protection through

precise clamping of excess surge voltage.

• Ideal for high performance, high reliability in AC and DC circuit protection

TVS Diode

• Protection from electrostatic discharge (ESD) & lightning transients

• Best-in-class clamping for signal lines and I/O interfaces

TVS Diode Array (SPA® Devices)

• Silicon crowbar device to protect power cross or lightning surge.

• Established leadership position in telecom/ datacom equipment protection.

Protection Thyristor (SIDACtor® Devices)

• Power semiconductors used to control the flow of electrical energy

• Reliable switching for numerous applications including home appliances, electrical tools, lighting, and HVAC

Power Switching Thyristor

• Designed for bypass protection of open-LED failures

• Assures high reliability and low maintenance in outdoor LED lighting applications

PLED

2013

V3.0-A


High level portfolio overview


Roadmap


Focus area 1: TRIAC for water heater

TO-220 (8-16A) TO-218 (25-40A)

New package / module

– FASTPAK (25, 35A) – SOT227 (90A)

Teccor TO-218 TRIAC


Focus area 2: SIDAC for Gas and Ion

K2200SHRP for gas igniter at Miflex – New ! 1200kpcs EAU expected

Ion generator (“Plasma Cluster”) at Sharp – More than 4000kpcs sold in last 15 month

New comer

– SMA unidirectional SIDAC


Marching orders…what do we want from them in the following market

TRIAC (16-40A) for electric water heater includes FASTPAK potential SIDAC for gas igniter includes SMA SIDAC potential SIDAC for M-H lamp ballast Kxx01GL series


Why are Transients of Concern?

Component miniaturization has resulted in increased sensitivity to electrical stress

Microprocessors have structures and conductive paths which cannot handle high currents from ESD transients

They operate at very low circuit voltages Transient voltages must be controlled to prevent device interruption or failure Sensitive microprocessors are prevalent in a wide range of devices

such as: • Home appliances • Industrial controls • Consumer electronics • Data processing equipment • Telecommunications • Automotive electronic systems • Toys


Vline

Transient Event

TVS Clamping Devices

Time

Voltage

Transient

Circuit Damage Level Suppressor Clamp Level

Normal Circuit Level


C Device Capacitance

L Body Inductance

Rv Voltage Variable Resistor

R Insulation Resistor

TVS Equivalent Model

TVS Equivalent Model

L

R Rv

C


Bidirectional vs Unidirectional

Unidirectional

Ipp = peak pulse current

Ir = leakage current @ Vr

It = test current

Vf = max forward voltage*

Vr = max reserve standoff voltage

Vbr = breakdown voltage @ It

Vc = max clamp voltage @ Ipp


TVS Transient Protection


Surface Mount Product Offering

SMAJ P4SMA SMBJ P6SMBJ

1KSMBJ SMCJ 1.5SMC SMDJ


Axial Leaded Product Offering

P4KE SA P6KE

1.5KE 3KP,5KP 15KPA,20KPA, 30KAP


LFUS TVS AK devices is superior to MOV based SPD module

– Much compact in design 10X Smaller size than traditional SPD module Easy for layout and assembly/ installation Much lighter ( AK15 is around 10gm) than heavy SPD module.

– Much longer in lifetime NO wear-out mechanism over multiple surge events ,

temperature variance and lifetime MTBF: years. – Simply perform better

Foldbak technology enable precise clamping AK Vclamp = 2 X Vstandoff. Competition MOV Vcl over 3X Vv operating TVS Diode instant response in a few nS compared to MOV technology tens nS Sec

– Wider operating temperature AK: -55degree C to 150 degree C MOV: -40 degree C to 85 degree C


Typical TVS Applications

D.C. Supply Protection D.C. Load Protection

EMI Limiting A.C. Supply Protection

Relay and Contactor Transient Limiting Single Line


SPA products for the portable market Discrete ESD diodes / - Small form factor arrays Discrete ESD diodes ESD arrays

0402 – SOD723

0201 – 0.6mm x 0.3mm

SP1005-01WTG SP1007-01WTG

SP1003-01DTG

General purpose

Low capacitance

SP3010-04UTG SP3003 series

SP1011-04UTG SP1004-04VTG

SP1001 series SP6001/SP6002 series


Examples of circuits using silicon ESD/Surge protection

And others…. • RS-232 • RS-485 • CAN bus • LIN bus • SIM sockets

USB 1.1, USB 2.0, USB 3.0

HDMI, DVI

10/100/1000 Ethernet

Audio, analog video

USB, FireWire, DisplayPort, VGA, eSATA

Buttons, keypad, headset, microphone, SD Card


General Purpose ESD Protection • Low-speed circuits (< 100Mbps) • Examples include power ports, keypads, buttons,

switches, audio, analog video, USB 1.1

Low Capacitance ESD Protection • High-speed data buses (> 100Mbps) • Examples include HDMI, USB 2.0, USB 3.0,

FireWire, DisplayPort, Ethernet, eSATA

Lightning Surge Protection • Specifically refers to Ethernet (10/100/1000) and

xDSL circuits in which there is a requirement to provide ESD and/or lightning surge protection (will vary by standard, customer and application.

Our portfolio is categorized or segmented to easily find the appropriate device for an application


General Purpose ESD Protection

Low Capacitance ESD Protection

Lightning Surge Protection

The product categories are identified below with the associated product series

SP05 SP1001 SP1002 SD05 SP1003 SP1004 SP1005 SD05C SP1006 SP1007 SP1008 SP1011 SP720 SP721 SP723 SP724 SP725

SP3001 SP3002 SP3003 SP3004 SP3006 SP3010 SP3011 SP3012 SP3021 SP3030 SP3031

SP03-3.3 LC03-3.3 SP03-6 SLVU2.8 SLVU2.8-4 SRV05-4 SP4060 SP2504N SP3304N SP2502L SR05 SRDA05

40 active product series; with another 15 currently in development


Radial MOV Series

ZA LA CIII ULTRA

Voltage: 4V-1000V

Surge: 50A~22,000A

Size: 5mm~25mm

Littelfuse MOV Product by Series

TMOV14&20 Series

TMOV / iTMOV

Voltage: 115V~750V

Surge:6,000A~10,000A

Size: 14mm & 20mm

Industrial MOV Series

SM7 SM20 FBMOV

HA HB DA/DB BA/BB

Voltage: 20V~28,000V

Surge: 12,000A~70,000A

Size: 7mm~60mm

Other MOV Series

MA RA CH

Voltage: 9V~275V

Surge:40A~4,500A

Size: 3mm~8mm


SPD in AC Network

PEN

kWh

L1

L2

L3

PE

N

Power Meter Distribution

Panel Equipment

Service Transformer / Main Distribution Panel

Type 1 SPD Type 2 SPD Type 3 SPD


FBMOV : Typical Application

FBMOV in parallel if required for High surge ratings

LVSP Fuse

Module with Paralleled MOVs/ SAD etc Maybe sand/epoxy filled.


SPD (SMOV)

SMOV

Surge : 20kA In value Fault current : ~150A Indication terminals are

isolated from operation line.

To be released in Feb. of 2012

Thermal disconnect

MOV

P1

P2

ON

Common

Open

Thermal element

MOV

Typical solution : Need one rigid house Or series one additional fuse for meeting 150A fault current

SMOV


SPD (TMOV)

Surge : 20kA In value Fault Current : ~10A

Need additional fault current protection

for Type 1,2 and 3 SPD application !

TMOV


MOV Market Choices: Power & Plug-In As SPD

Internal SPD

Breakers

AC

Protected AC

Hard-Wired External

SPD

Breakers

AC

Protected AC

SPD

Plug-In

Wall Plug Mount

AC

AC

Power Control Center

Coax

AC

http://www.apttvss.com/proddetail.aspx?prod=ACDINRAIL

http://www.tripplite.com/shared/img/products/large/ISOBAR6DBS_av.jpg


Fuse Series


GDT and PTC


Where are the Littelfuse parts can be found? Auto Motor Controller And Accessories'


For Power System Protection

Design Notes: Protection Application: Products that are directly connected to the AC mains (120 to 250VACrms) will be exposed to much more severe surge transients (lightning, load switching, etc.) and short circuit/overload conditions than on DC inputs. Because of this, the protection devices need to be more robust.

Solution Description: As shown at the left (top), a cartridge or leaded fuse (5x20mm, 2AG, 3AG, TE5/TR5) can be used for short circuit and overload current conditions. For surge protection, an MOV (e.g. C-III, UltraMOV and LA series) with high energy handling capabilities should be used.

For products that also require electrical isolation between the hot and neutral lines and chassis (earth) ground, a GDT should be selected (left, bottom). The GDT is used to provide electrical isolation for the safety of the consumer.

Companion Solutions: Does not apply.

Regulatory Issues: Standards that specify safety and performance criteria include:

• UL 6500/IEC 65065

• UL1414

• UL1449 AC Lines Solution Description: 1）TMOV TMOV14RP385E 14mm 385Vac 505VDC TMOV20RP385E 20mm 385Vac 505VDC TMOV14RP3420E 14mm 420Vac 560VDC TMOV20RP420E 20mm 420Vac 560VDC 2)GDT SL1011A500 500VDC SL1011A600 600VDC


A Typical Power line Schamatic


Circuit Protection of 110VDC

6KA 8/20us

FUSE: 0218012.MXEP 2pcs

TVS:AK10-066 3pcs

TVS:SMDJ130A 1pc

Design Notes: This solution include two parts, the first is primary protection High surge for lighting protection

The secondary is Littelfuse 5kW TVS as a low voltage protection.

A fuse or Fuse is used as over current protection

Basically you must select a Lower voltage TVS as over voltage protection.

8/20us 6KA Surge Capability

Out

side

Wor

ld

Shield Ground

Primary protection: AK6-066C

Fuse: 0218012.MXEP

TVS:SMDJ130A


Circuit Protection of 24VDC

10KA 8/20us

FUSE: 0453001 2pcs

TVS:AK10-030 3pcs

TVS:SMDJ28A 1pc

Design Notes: This solution include two parts, the first is primary protection High surge for lighting protection

The secondary is Littelfuse 5kW TVS as a low voltage protection.


Basically you must select a Lower voltage TVS as over voltage protection.

Out

side

Wor

ld

Shield Ground

Primary protection: AK10-030

Fuse: 0451001

Cx

Cy CM Choke

Cx

NM Choke

TVS:SMDJ28A


Target Applications: – 10/100/1000 Ethernet – Set top box (consumer and

security) – Notebooks, network hardware

Features/benefits: – Capacitance value of 4.4pF – Low RDYN of 0.4Ω (low clamping) – Low turn on voltage of 2.5V – Rated for 20A surge current

(tP=8/20µs, per IEC 61000-4-5) – ±30kV contact discharge – MSOP-10 package – 8 channels

Example of SP4060-08ATG used on Ethernet 2.5V, 4.4pF Diode Array for Surge Protection


SLVU2.8-4BTG Series 2.8V, 40A TVS Array for Lightning Surge Protection

Target Applications: – 10/100/1000 Ethernet – WAN/LAN Equipment – Base Station Controllers – Desktops, Notebooks, Servers

Features/benefits: – Low capacitance of 2.0pF – Low Clamping Voltages – Lightning Protection up to 40A

(tP=8/20µs, per IEC 61000-4-5) – ±30kV contact discharge – SOIC-8 package allows

easy trace routing


Design Notes: Protection Application: The data signals used in an Ethernet port vary between 1.0V (1000Base-T and 100Base-TX) to 2.5V (10Base-T), with maximum data rates of 1000Mbps, 100Mbps and 10Mbps, respectively. At these data rates, the capacitance of the suppressor needs to be taken into account. The signal lines to be protected from lightning include Tx± and Rx±. Solution Description: As shown at the left, Telelink fuses are used for over-current protection for each data line, and the SEP series SIDACtor can be used for primary protection from lightning per the GR-1089 inter-building standard (500A, 2/10µs). The SEP064 has a working or standoff voltage of 58V allowing it be used in PoE and PoE+ applications. Last, a low capacitance diode array is used for secondary protection to suppress any let-through energy. Companion Solutions: Other solutions within the LF portfolio exist in addition to these recommendations such as the SEP008 series. This lower voltage option can lower the clamping voltages in applications that do not need the higher standoff voltage due to PoE and PoE+ applications. Regulatory Issues: Many standards could apply depending upon the end equipment usage such as GR-1089 or the IEC61000-4-5. Please consult Littelfuse for application support. Unique Features: None Road Map Products to be Watching for: SP4061 Series: < 4pF, 2.5V, 20A (tP=8/20µs) Surge Protection (enhanced clamping for PHY protection)

Circuit Protection of Ethernet port (Lightning)

Ethernet: SEP0640Q38CB SIDACtor & SP3050-04HTG SPATM

Ordering Number Surge (tP=2/10µs) I/O Capacitance @ VR=0V Channels VRWM Packaging

SEP0640Q38CB 500A See datasheet 2 58V QFN (5x6mm)

SEP0080Q38CB 500A See datasheet 2 6V QFN (5x6mm)

SP3050-04HTG 10A 2.4pF 4 6V SOT23-6

Circuit Protection of Ethernet Port -Lightning, Inter-building (GR-1089)

Note: For 1GbE (1000Base-T) the protection scheme should replicated for the other 4 data lines.


D+/D-: SP3003-02 silicon protection array

D+ D -

VBUS

Signal Ground

USB 2.0 Controller

USB Port

Out

side

Wor

ld

SP3003-02JTG

Shield Ground

0805L050

Design Notes:

Protection Application: The data signals used in a USB 2.0 port vary between 0V to +0.5V, with a maximum data rate of 480Mbps. At this data rate, the capacitance of the suppressor needs to be minimized. The signal lines to be protected from ESD include D+ and D-. The 5VDC power bus should be protected against ESD and overcurrent events.

Solution Description: As shown at the left, a discrete diode is used on the power bus for ESD protection, and a PTC is used for resettable overcurrent protection. For the data lines, a two-channel array with 0.65 pF is used for ESD protection of the data lines.

Companion Solutions: Other solutions within the LF portfolio exist in addition to these recommendations. For example, if the operating current on the power bus is higher or lower, an appropriately rated PTC can be chosen.

Regulatory Issues: The IEC 61000-4-2 will be the most appropriate standard that applies for this port. It supplies a test method for verifying that the end product is not susceptible to ESD events.

Unique Features: Does not apply.

Application Warnings: Does not apply.

Circuit Protection of USB 2.0 port

D+/D-: SP1007-01 silicon protection diode

D+ D -

VBUS

Signal Ground

USB 2.0 Controller

USB Port

Out

side

Wor

ld

SP1007-01WTG

Shield Ground

0805L050

SP1003-01DTG


Circuit Protection of RS485


Circuit Protection of RS485/CAN

Out

side

Wor

ld

Shield Ground

10KA 8/20us

FUSE: 04611.25 2pcs

GDT:SL1411A075SM 3pcs

SIDACtor: P0080SC MC 3pcs

Primary protection

Design Notes:

This solution include two parts, the first is primary protection GDT for lighting protection. If possible this application is for our door cable protection.

The secondary is Littelfuse SIDACtor as a low voltage protection.


Basically you must select a SIDACtor as over voltage protection.

8/20us 5KA Surge Capability


Circuit Protection of RS232


SIDACtor for Tertiary Protection NEW SDP Series in SOT23-6

SIDACtor® SDP Series in the SOT23-6


Example Application IGBT Driver Boar : PTC and TVS

Power input: SMBJ 16ACA PTC 1812L200


Thank you!

littelfuse 在电机和功率控制的电路保护方案 · this, the protection devices need to be...

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