HV9910B
Universal High-Brightness LED Driver
Features
Description
•
•
•
•
•
•
•
HV9910B is an open loop, current mode control, LED
driver IC. This IC can be programmed to operate in
either a constant frequency or constant off-time mode.
It includes an 8.0 - 450V linear regulator which allows it
to work from a wide range of input voltages without the
need for an external low voltage supply. HV9910B
includes a PWM-dimming input that can accept an
external control signal with a duty ratio of 0 - 100% and
a frequency of up to a few kilohertz. It also includes a 0
- 250mV linear dimming input which can be used for linear dimming of the LED current.
Switch mode controller for single switch LED drivers
Enhanced drop-in replacement to the HV9910
Open loop peak current controller
Internal 8.0 to 450V linear regulator
Constant frequency or constant off-time operation
Linear and PWM dimming capability
Requires few external components for operation
Applications
•
•
•
•
•
•
DC/DC or AC/DC LED driver applications
RGB backlighting LED driver
Back lighting of flat panel displays
General purpose constant current source
Signage and decorative LED lighting
Chargers
2015 Microchip Technology Inc.
HV9910B is ideally suited for buck LED drivers. Since
the HV9910B operates in open loop current mode control, the controller achieves good output current regulation without the need for any loop compensation. PWM
dimming response is limited only by the rate of rise and
fall of the inductor current, enabling very fast rise and
fall times. HV9910B requires only three external components, apart from the power stage, to produce a controlled LED current. This makes HV9910B an ideal
solution for low cost LED drivers.
DS20005344A-page 1
HV9910B
Package Type
VIN
1
16
NC
NC
2
15
NC
NC
3
14
RT
CS
4
13
LD
VIN
1
8
RT
GND
5
12
VDD
CS
2
7
LD
NC
6
11
NC
GND
3
6
VDD
NC
7
10
NC
GATE
4
5
PWMD GATE
8
9
PWMD
8-Lead SOIC
16-Lead SOIC
See Table 2-1 for pin information
Typical Application Circuit
CIN
CO
D1
CDD
L1
VIN
VDD
HV9910B
LD
PWMD
RT
RT
DS20005344A-page 2
GATE
Q1
CS
GND
RCS
2015 Microchip Technology Inc.
HV9910B
1.0
ELECTRICAL
CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
VIN to GND...................................................... -0.5V to +470V
VDD to GND.......................................................................12V
CS, LD, PWMD, GATE, RT to GND... ....-0.3V to (VDD + 0.3V)
Operating temperature ..................................-40°C to +125°C
Storage temperature .....................................-65°C to +150°C
Continuous power dissipation (TA = +25°C)
8-lead SOIC ...............................................630 mW
16-lead SOIC ...........................................1300 mW
Note: Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions, above those indicated in the
operational listings of this specification, is not implied. Exposure to maximum rating conditions for extended periods may
affect device reliability.
1.1
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (SHEET 1 OF 2)1
TABLE 1-1:
Symbol
Parameter
Note
Min
Typ
Max
Units Conditions
Input
VINDC
Input DC supply voltage
range2
3
8.0
-
450
V
IINSD
Shut-down mode supply
current
3
-
0.5
1.0
mA
Internally regulated voltage
-
7.25
7.5
7.75
V
VIN = 8.0V, IDD(ext) = 0, 500pF
at GATE; RT = 226kΩ, PWMD
= VDD
∆VDD, line
Line regulation of VDD
-
0
-
1.0
V
VIN = 8.0 - 450V, IDD(ext) = 0,
500pF at GATE; RT = 226kΩ,
PWMD = VDD
∆VDD, load
Load regulation of VDD
-
0
-
100
mV
IDD(ext) = 0 - 1.0mA, 500pF at
GATE; RT = 226kΩ, PWMD =
VDD
UVLO
VDD undervoltage lockout
threshold
3
6.45
6.7
6.95
V
VDD rising
∆UVLO
VDD undervoltage lockout
hysteresis
-
-
500
-
mV
VDD falling
IIN,MAX
Current that the regulator
can supply before IC goes
into UVLO
4
5.0
-
-
mA
VIN = 8.0V
Pin PWMD input low voltage
3
-
-
0.8
V
VIN = 8.0 - 450V
VEN(hi)
Pin PWMD input high voltage
3
2.0
-
-
V
VIN = 8.0 - 450V
REN
Pin PWMD pull-down resistance at PWMD
-
50
100
150
kΩ
DC input voltage
Pin PWMD to GND
Internal Regulator
VDD
PWM Dimming
VEN(lo)
2015 Microchip Technology Inc.
VPWMD = 5.0V
DS20005344A-page 3
HV9910B
TABLE 1-1:
Symbol
ELECTRICAL CHARACTERISTICS (CONTINUED) (SHEET 2 OF 2)1
Parameter
Note
Min
Typ
Max
Units Conditions
Current Sense Comparator
VCS,TH
VOFFSET
225
250
275
213
250
287
3
-12
-
12
-
150
215
280
Current sense pull-in threshold voltage
-
Offset voltage for LD comparator
Current sense blanking
interval
TBLANK
tDELAY
Delay to output
mV
mV
ns
-
145
215
315
-
-
80
150
-40°C < TA < +85°C
TA < +125°C
ns
0 < TA < +85°C, VLD = VDD,
VCS = VCS,TH + 50mV after
TBLANK
-40 < TA < +125°C, VLD = VDD,
VCS = VCS,TH + 50mV after
TBLANK
VLD = VDD, VCS = VCS,TH +
50mV after TBLANK
Oscillator
fOSC
Oscillator frequency
-
20
25
30
-
80
100
120
-
165
-
-
mA
kHz
RT = 1.00MΩ
RT = 226kΩ
Gate Driver
ISOURCE
GATE sourcing current
VGATE = 0V, VDD = 7.5V
ISINK
GATE sinking current
-
165
-
-
mA
VGATE = VDD, VDD = 7.5V
tRISE
GATE output rise time
-
-
30
50
ns
CGATE = 500pF, VDD = 7.5V
tFALL
GATE output fall time
-
-
30
50
ns
CGATE = 500pF, VDD = 7.5V
1
2
3
4
Specifications are TA = 25°C, VIN = 15V unless otherwise noted.
Also limited by package-power dissipation limit; Whichever is lower.
Applies over the full operating ambient temperature range of -40°C < TA < +125°C.
For design guidance only
TABLE 1-2:
THERMAL RESISTANCE
DS20005344A-page 4
Package
θja
8-Lead SOIC
101°C/W
16-Lead SOIC
83°C/W
2015 Microchip Technology Inc.
HV9910B
2.0
PIN DESCRIPTION
The locations of the pins are listed in Package Type.
TABLE 2-1:
PIN DESCRIPTION
Pin #
8-Lead SOIC
16-Lead SOIC
1
1
Function
Description
VIN
Input of an 8.0 - 450V linear regulator.
2
4
CS
Current sense pin used to sense the FET current by means of an
external sense resistor. When this pin exceeds the lower of either
the internal 250mV or the voltage at the LD pin, the GATE output
goes low.
3
5
GND
Ground return for all internal circuitry. This pin must be electrically
connected to the ground of the power train.
4
8
GATE
Output GATE driver for an external N-channel power MOSFET.
5
9
PWMD
PWM dimming input of the IC. When this pin is pulled to GND, the
GATE driver is turned off. When the pin is pulled high, the GATE
driver operates normally.
6
12
VDD
7
13
LD
Linear dimming input and sets the current sense threshold as long
as the voltage at the pin is less than 250mV (typ).
Sets the oscillator frequency. When a resistor is connected
between RT and GND, the HV9910B operates in constant frequency mode. When the resistor is connected between RT and
GATE, the IC operates in constant off-time mode.
8
14
RT
-
2, 3, 6, 7, 10,
11, 15, 16
NC
2015 Microchip Technology Inc.
Power supply for all internal circuits.
It must be bypassed with a low ESR capacitor to GND (≥0.1μF).
No connection
DS20005344A-page 5
HV9910B
3.0
APPLICATION INFORMATION
HV9910B is optimized to drive buck LED drivers using
open-loop, peak current mode control. This method of
control enables fairly accurate LED current control
without the need for high side current sensing or the
design of any closed loop controllers. The IC uses very
few external components and enables both Linear and
PWM-dimming of the LED current.
A resistor connected to the RT pin programs the frequency of operation (or the off-time). The oscillator produces pulses at regular intervals. These pulses set the
SR flip-flop in the HV9910B which causes the GATE
driver to turn on. The same pulses also start the blanking timer, which inhibits the reset input of the SR flipflop and prevent false turn-offs due to the turn-on spike.
When the FET turns on, the current through the inductor starts ramping up. This current flows through the
external sense resistor RCS and produces a ramp voltage at the CS pin. The comparators are constantly
comparing the CS pin voltage to both the voltage at the
LD pin and the internal 250mV. Once the blanking timer
is complete, the output of these comparators is allowed
to reset the flip-flop. When the output of either one of
the two comparators goes high, the flip flop is reset and
the GATE output goes low. The GATE goes low until
the SR flip-flop is set by the oscillator. Assuming a 30%
ripple in the inductor, the current sense resistor RCS
can be set using:
0.25V orV LD
R CS = -----------------------------------1.15 I LED A
Constant frequency peak current mode control has an
inherent disadvantage – at duty cycles greater than
0.5, the control scheme goes into subharmonic oscillations. To prevent this, an artificial slope is typically
added to the current sense waveform. This slope compensation scheme will affect the accuracy of the LED
current in the present form. However, a constant offtime peak current control scheme does not have this
problem and can easily operate at duty cycles greater
then 0.5. This control scheme also gives inherent input
voltage rejection, making the LED current almost
insensitive to input voltage variations. However, this
scheme leads to variable frequency operation and the
frequency range depends greatly on the input and output voltage variation. HV9910B makes it easy to switch
between the two modes of operation by changing one
connection (see Section 3.3 “Oscillator”).
3.1
Input Voltage Regulator
HV9910B can be powered directly from its VIN pin and
can work from 8.0 - 450VDC at its VIN pin. When a voltage is applied at the VIN pin, the HV9910B maintains a
constant 7.5V at the VDD pin. This voltage is used to
power the IC and any external resistor dividers needed
DS20005344A-page 6
to control the IC. The VDD pin must be bypassed by a
low-ESR capacitor to provide a low impedance path for
the high frequency current of the output GATE driver.
HV9910B can also be operated by supplying a voltage
at the VDD pin greater than the internally regulated
voltage. This will turn off the internal linear regulator of
the IC and the HV9910B will operate directly off the
voltage supplied at the VDD pin. Please note that this
external voltage at the VDD pin should not exceed 12V.
Although the VIN pin of the HV9910B is rated up to
450V, the actual maximum voltage that can be applied
is limited by the power dissipation in the IC. For example, if an 8-pin SOIC (junction to ambient thermal resistance Rθ,j-a = 128°C/W) HV9910B draws about IIN =
2.0mA from the VIN pin, and has a maximum allowable
temperature rise of the junction temperature limited to
about ∆T = 100°C, the maximum voltage at the VIN pin
would be:
T
1
100C
1
V IN MAX = -------------- ------ = --------------------------- ------------- = 390V
R j – a I IN 128C W 2mA
In these cases, to operate the HV9910B from higher
input voltages, a Zener diode can be added in series
with the VIN pin to divert some of the power loss from
the HV9910B to the Zener diode. In the above example, using a 100V Zener diode will allow the circuit to
easily work up to 450V.
The input current drawn from the VIN pin is a sum of the
1.0mA current drawn by the internal circuit and the current drawn by the GATE driver.The GATE driver
depends on the switching frequency and the GATE
charge of the external FET).
I IN 1.0mA + Q g f s
In the above equation, fS is the switching frequency and
QG is the GATE charge of the external FET (which can
be obtained from the data sheet of the FET).
3.2
Current Sense
The current sense input of the HV9910B goes to the
non-inverting inputs of two comparators. The inverting
terminal of one comparator is tied to an internal 250mV
reference, whereas the inverting terminal of the other
comparator is connected to the LD pin. The outputs of
both these comparators are fed into an OR GATE and
the output of the OR GATE is fed into the reset pin of
the flip-flop. Thus, the comparator which has the lowest
voltage at the inverting terminal determines when the
GATE output is turned off.
2015 Microchip Technology Inc.
HV9910B
The outputs of the comparators also include a 150280ns blanking time which prevents spurious turn-offs
of the external FET due to the turn-on spike normally
present in peak current mode control. In rare cases,
this internal blanking might not be enough to filter out
the turn-on spike. In these cases, an external RC filter
needs to be added between the external sense resistor
(RCS) and the CS pin.
To use the internal 250mV, the LD pin can be connected to VDD.
Note:
Please note that the comparators are fast with a typical
80ns response time. Hence these comparators are
more susceptible to be triggered by noise than the
comparators of the HV9910. A proper layout minimizing external inductances will prevent false triggering of
these comparators.
3.3
Oscillator
The oscillator in the HV9910B is controlled by a single
resistor connected at the RT pin. The equation governing the oscillator time period tOSC is given by:
R T k + 22
t OSC s = -------------------------------25
If the resistor is connected between RT and GND,
HV9910B operates in a constant frequency mode and
the above equation determines the time-period. If the
resistor is connected between RT and GATE, the
HV9910B operates in a constant off-time mode and the
above equation determines the off-time.
3.4
3.6
Although the LD pin can be pulled to GND,
the output current will not go to zero. This
is due to the presence of a minimum ontime, which is equal to the sum of the
blanking time and the delay to output time,
or about 450ns. This minimum on-time
causes the FET to be on for a minimum of
450ns, and thus the LED current when LD
= GND is not zero. This current is also
dependent on the input voltage, inductance value, forward voltage of the LEDs,
and circuit parasitics. To get zero LED current, the PWMD pin has to be used.
PWM Dimming
PWM Dimming can be achieved by driving the PWMD
pin with a low frequency square wave signal. When the
PWM signal is zero, the GATE driver is turned off; when
the PWMD signal if high, the GATE driver is enabled.
The PWMD signal does not turn off the other parts of
the IC, therefore, the response of the HV9910B to the
PWMD signal is almost instantaneous. The rate of rise
and fall of the LED current is thus determined solely by
the rise and fall times of the inductor current.
To disable PWM dimming and enable the HV9910B
permanently, connect the PWMD pin to VDD.
Gate Output
The GATE output of the HV9910B is used to drive an
external FET. It is recommended that the GATE charge
of the external FET be less than 25nC for switching frequencies ≤100kHz and less than 15nC for switching
frequencies > 100kHz.
3.5
Linear Dimming
The Linear Dimming pin is used to control the LED current. There are two cases when it may be necessary to
use the Linear Dimming pin.
1.
2.
In some cases, when using the internal 250mV,
it may not be possible to find the exact RCS
value required to obtain the LED current. In
these cases, an external voltage divider from the
VDD pin can be connected to the LD pin to
obtain a voltage (less than 250mV) corresponding to the desired voltage across RCS.
Linear dimming may be desired to adjust the
current level to reduce the intensity of the LEDs.
In these cases, an external 0-250mV voltage
can be connected to the LD pin to adjust the
LED current during operation.
2015 Microchip Technology Inc.
DS20005344A-page 7
HV9910B
FIGURE 3-1:
INTERNAL BLOCK DIAGRAM
Regulator
VIN
VDD
POR
+
LD
Blanking
CS
250mV
+
-
R Q
GATE
S
Oscillator
GND
DS20005344A-page 8
RT
PWMD
2015 Microchip Technology Inc.
HV9910B
4.0
PACKAGING INFORMATION
4.1
Package Marking Information
8-lead SOIC
XXXXXXXX
XX e3 YYWW
NNN
16-lead SOIC
XXXXXXXXXXX
XXXXXXXXX e3
YYWWNNN
Legend: XX...X
Y
YY
WW
NNN
e3
*
Note:
Example
HV9910B
LG e3 1447
343
Example
HV9910BNG
1447343 e3
Product Code or Customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC® designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( e3 )
can be found on the outer packaging for this package.
In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for product code or customer-specific information. Package may or
not include the corporate logo.
2015 Microchip Technology Inc.
DS20005344A-page 9
HV9910B
Note: For the most current package drawings, see the Microchip Packaging Specification at www.microchip.com/packaging.
DS20005344A-page 10
2015 Microchip Technology Inc.
HV9910B
16-Lead SOIC (Narrow Body) Package Outline (NG)
9.90x3.90mm body, 1.75mm height (max), 1.27mm pitch
D
16
θ1
E1 E
Note 1
(Index Area
D/2 x E1/2)
L2
1
L
Top View
View B
View
B
A
h
A A2
h
Seating
Plane
e
A1
Seating
Plane
θ
L1
Gauge
Plane
Note 1
b
Side View
View A-A
A
Note: For the most current package drawings, see the Microchip Packaging Specification at www.microchip.com/packaging.
Note:
1. 7KLVFKDPIHUIHDWXUHLVRSWLRQDO,ILWLVQRWSUHVHQWWKHQD3LQLGHQWL¿HUPXVWEHORFDWHGLQWKHLQGH[DUHDLQGLFDWHG7KH3LQLGHQWL¿HUFDQEH
DPROGHGPDUNLGHQWL¿HUDQHPEHGGHGPHWDOPDUNHURUDSULQWHGLQGLFDWRU
Symbol
MIN
Dimension
(mm)
A
A1
A2
b
D
1.35*
0.10
1.25
0.31
9.80*
NOM
-
-
-
-
MAX
1.75
0.25
1.65*
0.51
9.90
E
E1
e
5.80* 3.80*
6.00
3.90
10.00* 6.20* 4.00*
1.27
BSC
h
L
0.25
0.40
-
-
0.50
1.27
L1
L2
1.04 0.25
REF BSC
ș
ș
0O
5O
-
-
8O
15O
JEDEC Registration MS-012, Variation AC, Issue E, Sept. 2005.
7KLVGLPHQVLRQLVQRWVSHFL¿HGLQWKH-('(&GUDZLQJ
Drawings are not to scale.
2015 Microchip Technology Inc.
DS20005344A-page 11
HV9910B
APPENDIX A:
REVISION HISTORY
Revision A (January 2015)
• Update file to new format
DS20005344A-page 12
2015 Microchip Technology Inc.
HV9910B
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
PART NO.
Device
-
XX
X
-
Package Environmental
Options
X
Media
Type
Device:
HV9910B= Universal High-Brightness LED Driver
Package:
LG
= 8-lead SOIC
NG
= 16-lead SOIC
Environmental
G
= Lead (Pb)-free/ROHS-compliant package
Media Type:
(blank)
= 3300/reel for LG package, 45/Tube for NG
package
Note:
M901
= 2600/reel for NG package
M934
= 2600/reel for NG package
Examples:
a)
HV9910BLG-G:
8-lead SOIC package,
3300/reel.
b)
HV9910BNG-G
c)
HV9910BNG-G-M901:
d)
HV9910BNG-G-M934:
16-lead SOIC package,
45/tube
16-lead SOIC package,
2600/reel.
16-lead SOIC package,
2600/reel.
For Media Types M901 and M934, the base quantity for tape and reel was standardized to 2600/reel. Both options will result in delivery of the same number of
parts/reel.
2015 Microchip Technology Inc.
DS20005344A-page 13
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash
and UNI/O are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MTP, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
Analog-for-the-Digital Age, Application Maestro, BodyCom,
chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O,
Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA
and Z-Scale are trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
GestIC and ULPP are registered trademarks of Microchip
Technology Germany II GmbH & Co. KG, a subsidiary of
Microchip Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2015, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-63277-025-7
QUALITYMANAGEMENTSYSTEM
CERTIFIEDBYDNV
== ISO/TS16949==
DS20005344A-page 14
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
2015 Microchip Technology Inc.
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
Germany - Dusseldorf
Tel: 49-2129-3766400
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Hong Kong
Tel: 852-2943-5100
Fax: 852-2401-3431
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
Austin, TX
Tel: 512-257-3370
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Cleveland
Independence, OH
Tel: 216-447-0464
Fax: 216-447-0643
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Novi, MI
Tel: 248-848-4000
Houston, TX
Tel: 281-894-5983
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
New York, NY
Tel: 631-435-6000
San Jose, CA
Tel: 408-735-9110
Canada - Toronto
Tel: 905-673-0699
Fax: 905-673-6509
China - Dongguan
Tel: 86-769-8702-9880
China - Hangzhou
Tel: 86-571-8792-8115
Fax: 86-571-8792-8116
India - Pune
Tel: 91-20-3019-1500
Japan - Osaka
Tel: 81-6-6152-7160
Fax: 81-6-6152-9310
Japan - Tokyo
Tel: 81-3-6880- 3770
Fax: 81-3-6880-3771
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
China - Hong Kong SAR
Tel: 852-2943-5100
Fax: 852-2401-3431
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shenzhen
Tel: 86-755-8864-2200
Fax: 86-755-8203-1760
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Kaohsiung
Tel: 886-7-213-7828
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Germany - Pforzheim
Tel: 49-7231-424750
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Italy - Venice
Tel: 39-049-7625286
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Poland - Warsaw
Tel: 48-22-3325737
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
Sweden - Stockholm
Tel: 46-8-5090-4654
UK - Wokingham
Tel: 44-118-921-5800
Fax: 44-118-921-5820
Taiwan - Taipei
Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
01/27/15
DS20005344A-page 15
2015 Microchip Technology Inc.