AH3768Q

AH3768Q
Q
HIGH-VOLTAGE, LOW-SENSITIVITY
AUTOMOTIVE HALL-EFFECT LATCH
PRELIMINARY - CONFIDENTIAL
Description
Pin Assignments
The AH3768Q is an AEC-Q100 qualified, high-voltage, low-sensitivity
Hall-Effect latch IC designed for brushless DC-motor commutation,
speed measurement, angular or linear encoders and position sensors
in automotive applications. To support wide range of demanding
applications, the design is optimized to operate over the supply range
of 3.0V to 28V. With chopper stabilized architecture and an internal
bandgap regulator to provide temperature compensated supply for
internal circuits, the AH3768Q provides a reliable solution over the
whole operating range. For robustness and protection, the device has
a reverse blocking diode with a Zener clamp on the supply. The
output has an over current limit and a Zener clamp.
(Top View)
3 OUTPUT
GND 2
1 VDD
SOT23
The single, open-drain output can be switched on with South pole of
sufficient strength and switched off with North pole of sufficient
strength. When the magnetic flux density (B) perpendicular to the
package is larger than the operate point (Bop) the output is switched
(Top View)
3. OUTPUT
2. GND
on (pulled low). The output is held latched until magnetic flux density
reverses and becomes lower than the release point (Brp).
1. VDD
SIP-3
Features
Applications
•
Bipolar Latch Operation (South Pole: On, North Pole: off)
•
Brushless DC-Motor Commutation
•
High Sensitivity: Bop and Brp of +175G and -175G Typical
•
Revolution Per Minute (RPM) Measurement
•
Single, Open-Drain Output with Overcurrent Limit
•
Angular and Linear Encoder and Position Sensing and Indexing
•
3.0V to 28V Operating Voltage Range
•
Flow Meters
•
Chopper Stabilized Design Provides
•
Contactless Commutation, Speed Measurement and Angular

Superior Temperature Stability

Minimal Switch Point Drift

Enhanced Immunity to Stress
•
Good RF Noise Immunity
•
Reverse Blocking Diode
•
Zener Clamp on Supply and Output Pins
•
-40°C to +150°C Operating Temperature
•
ESD: HBM ＞8kV, CDM: >2kV
•
AEC-Q100 Grade 0 Qualified
•
Industry Standard SOT23 and SIP-3 Packages
•
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
•
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
Position Sensing/Indexing in Automotive Applications
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AH3768Q
Document number: DS38077 Rev. 2 - 2
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AH3768Q
Q
Typical Applications Circuit
PRELIMINARY - CONFIDENTIAL
3.0V to 28V
VDD
RL
OUTPUT
AH3768Q
CIN
GND
Note:
4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF ~ 100nF. RL is the pull-up resistor.
Pin Descriptions
Package: SOT23 and SIP-3
Pin Number
Pin Name
1
VDD
2
3
GND
OUTPUT
Function
Power Supply Input
Ground
Output Pin
Functional Block Diagram
VDD
Power
switch
To All Subcircuits
Amp
Low-Pass Filter
Sample and
Hold
Dynamic Offset
Cancellation
Amp
OUTPUT
Control
Current
Limit
GND
AH3768Q
Document number: DS38077 Rev. 2 - 2
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AH3768Q
Q
Absolute Maximum Ratings (Notes 5 & 6) (@TA = +25°C, unless otherwise specified.)
PRELIMINARY - CONFIDENTIAL
Symbol
Value
Unit
VDD
Supply Voltage (Note 6)
32
V
VDDR
Reverse Supply Voltage (Note 6)
-32
V
VOUT_MAX
Output Off Voltage (Note 6)
32
V
IOUT
Continuous Output Current
60
mA
Reverse Output Current
-50
mA
IOUT_R
Characteristic
B
Magnetic Flux Density
PD
Package Power Dissipation
Ts
Storage Temperature Range
TJ
Maximum Junction Temperature
+150
°C
Electros Static Discharge Withstand - Human Body Model (HMB)
Electros Static Discharge Withstand - Machine Model (MM)
Electros Static Discharge Withstand - Charged Device Model (CDM)
8
800
2
kV
V
kV
ESD HBM
ESD MM
ESD CDM
Notes:
Unlimited
550
230
-65 to +165
SIP-3
SOT23
mW
°C
5. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
6. The absolute maximum VDD of 32V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to
operate the device at the absolute maximum rated conditions for any period of time.
Recommended Operating Conditions (@TA = -40°C to +150°C, unless otherwise specified.)
Symbol
VDD
TA
Rating
Unit
Supply Voltage
Parameter
Operating
3.0 to 28
V
Operating Temperature Range
Operating
-40 to +150
°C
Electrical Characteristics
Symbol
VOUT_ON
Conditions
(Notes 7 & 8) (@TA = -40°C to +150°C, VDD = 3V to 28V, unless otherwise specified.)
Parameter
IDD
Output On Voltage
Output Leakage Current
(when output is off)
Supply Current
IDD_R
Reverse Supply Current
tP_ON
fc
Device Power-On Time (start-up time)
Chopping Frequency
Response Time Delay
(time from magnetic threshold reached
to the start of the output rise or fall)
Output Rising Time
(external pull-up resistor RL and load
capacitance dependent)
Output Falling Time
(Internal switch resistance and load
capacitance dependent)
Output Current Limit
Zener Clamp Voltage
ILKG
td
tr
tf
IOCL
VZ
Notes:
Min
Typ
Max
Unit
IOUT = 20mA, B > Bop
Conditions
-
0.2
0.4
V
VOUT = 28V, B < Brp, Output off
-
<0.1
10
µA
Output open, TA = +25°C
Output open, TA = -40°C to +150°C
VDD = -18V, TA = +25°C
VDD = -18V, TA = -40°C to +150°C
VDD = -28V, TA = +25°C
VDD = -28V, TA = -40°C to +150°C
VDD >= 3V, B > Bop (Note 7)
VDD >= 3V
-
3
0.6
0.6
1.6
1.6
10
800
3.5
4
1,500
2,500
-
mA
mA
µA
µA
µA
µA
µs
kHz
(Note 9)
-
3.75
-
µs
RL = 1kΩ, CL = 20pF
-
0.2
1
µs
RL = 1kΩ, CL = 20pF
-
0.1
1
µs
30
28
-
55
-
mA
V
B > Bop, (Note 10 )
IDD = 5mA
7. When power is initially turned on, VDD must be within its correct operating range (3.0V to 28V) to guarantee the output sampling. The output state is valid
after the start-up time of 10µs typical from the operating voltage reaching 3V.
8. Typical values are defined at TA = +25C, VDD = 12V. Maximum and minimum values over the operating temperature range is not tested in production
but guaranteed by design, process control and characterization.
9. Guaranteed by design, process control and characterization. Not tested in production.
10. The device will limit the output current IOUT to current limit of IOCL.
AH3768Q
Document number: DS38077 Rev. 2 - 2
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AH3768Q
Q
Symbol
Parameter
Bops (South pole to part marking side for
SOT23 and SIP-3 packages)
Operation Point
Brps (North pole to part marking side for
SOT23 and SIP-3 packages)
Bhy (|Bopx|-|Brpx|)
Notes:
Conditions
VDD = 12V, TA = +25°C
TA = -40°C to +150°C
VDD = 12V, TA = +25C
TA = -40°C to +150°C
VDD = 12V, TA = +25°C
TA = -40°C to +150°C
Release Point
Hysteresis (Note 13)
Min
140
-200
280
Typ
175
175
-175
-175
350
350
(1mT=10 Gauss)
Max
Unit
200
Gauss
-140
400
11. When power is initially turned on, VDD must be within its correct operating range (3.0V to 28V) to guarantee the output sampling. The output state is
valid after the start-up time of 10µs typical from the operating voltage reaching 3V.
12. Typical values are defined at TA = +25C, VDD = 12V. Maximum and minimum values over the operating temperature range is not tested in production
but guaranteed by design, process control and characterization.
13. Maximum and minimum hysteresis is guaranteed by design, process control and characterization.
Output
VDD
(off-state)
( Output Voltage )
PRELIMINARY - CONFIDENTIAL
Magnetic Characteristics (Notes 11 &12) (TA = -40°C to +150°C, VDD = 3.0V to 28V, unless otherwise specified)
Bhy
Turn off
Turn on
(on-state)
VOUT_ON = VSAT
Brp
0
Bop
( Magnetic Flux Density B )
S
S
Part mark
Part mark
AH3768Q
Document number: DS38077 Rev. 2 - 2
N
N
(SOT23)
(SIP-3)
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AH3768Q
Q
Typical Operating Characteristics
TA = +25oC
Hyst
Bop
4
6
8
10
12
14
16
18
20
22
24
26
28
Gauss (G)
Gauss (G)
400
375
350
325
300
275
250
225
200
175
150
125
100
75
50
25
0
2
0
-25
-50
-75
-100
-125
-150
-175
-200
-225
-250
-275
-300
-325
-350
-375
-400
-425
-450
TA = +25o C
Brp
2
30
4
6
8
10
12
VDD = 3V
Hyst
Bop
-50
-25
0
25
50
75
100
125
150
0
-25
-50
-75
-100
-125
-150
-175
-200
-225
-250
-275
-300
-325
-350
-375
-400
-425
-450
22
24
-25
0
25
50
75
100
125
Temperature ( C)
Temperature ( C)
Switch Operate Point Bop vs Temperature
Switch Release Point Brp vs Temperature
Gauss (G)
Hyst
0
25
50
75
100
125
150
175
0
-25
-50
-75
-100
-125
-150
-175
-200
-225
-250
-275
-300
-325
-350
-375
-400
-425
-450
30
150
175
Brp
-50
-25
0
25
50
75
100
125
Temperature (oC)
Switch Operate Point Bop vs Temperature
Switch Release Point Brp vs Temperature
Document number: DS38077 Rev. 2 - 2
28
VDD = 12V
Temperature (oC)
AH3768Q
26
Brp
-50
175
Bop
-25
20
o
VDD = 12V
-50
18
VDD = 3V
o
400
375
350
325
300
275
250
225
200
175
150
125
100
75
50
25
0
16
Switch Release Point Brp vs Supply Voltage
Gauss (G)
Gauss (G)
400
375
350
325
300
275
250
225
200
175
150
125
100
75
50
25
0
14
Supply Voltage (V)
Supply Voltage (V)
Switch Operate Point Bop vs Supply Voltage
Gauss (G)
PRELIMINARY - CONFIDENTIAL
Output Switch Operate and Release Points (Magnetic Thresholds) – Bop and Brp
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150
175
July 2015
© Diodes Incorporated
AH3768Q
Q
Typical Operating Characteristics
VDD = 28V
Hyst
Gauss (G)
Gauss (G)
400
375
350
325
300
275
250
225
200
175
150
125
100
75
50
25
0
Bop
-50
-25
0
25
50
75
100
125
150
175
0
-25
-50
-75
-100
-125
-150
-175
-200
-225
-250
-275
-300
-325
-350
-375
-400
-425
-450
VDD = 28V
Brp
-50
-25
0
25
50
75
100
125
Temperature (oC)
Temperature (oC)
Switch Operate Point Bop vs Temperature
Switch Release Point Brp vs Temperature
150
175
Supply Current
4.0
TA = +25 C
Supply Current IDD (mA)
Supply Current IDD (mA)
5.0
4.0
3.0
2.0
1.0
3.8
28V
3.5
3.3
3.0
2.8
3V
12V
5V
2.5
2.3
2.0
0.0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
-50
30
-25
0
25
50
75
100
125
150
175
Temperature (oC)
Supply Voltage (V)
Supply Current vs Temperature
Supply Current vs Supply Voltage
3.0
2.8
Reverse Supply Current IDD_R (mA)
Reverse Supply Current
Reverse Supply Current IDD_R (mA)
PRELIMINARY - CONFIDENTIAL
Output Switch Operate and Release Points (Magnetic Thresholds) – Bop and Brp (cont.)
TA = +25 C
2.5
2.3
2.0
1.8
1.5
1.3
1.0
0.8
0.5
0.3
0.0
-30
-28
-26
-24
-22
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
1,200
1,050
900
-28V
750
-24V
600
450
300
-18V
150
0
-50
25
50
75
100
125
150
175
Reverse Supply Current vs Temperature
Reverse Supply Current vs Supply Voltage
Document number: DS38077 Rev. 2 - 2
0
Temperature (oC)
Supply Voltage (V)
AH3768Q
-25
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AH3768Q
Q
Typical Operating Characteristics (cont.)
TA = +25 C
Output ON Voltage VOUT_ON (V)
Output ON Voltage VOUT_ON (V)
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
2
4
6
8
10
12
14
16
18
20
22
24
26
28
0.40
0.35
28V
0.30
0.25
0.20
3V
0.15
5V
12V
0.10
0.05
0.00
30
-50
-25
0
25
50
75
100
125
Supply Voltage (V)
Temperature (oC)
Output ON Voltage vs Supply Voltage
Output ON Voltage vs Temperature
150
175
60
TA = +25 C
55
50
45
40
35
30
25
20
15
10
5
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Output Leakage Current ILKG (nA)
Output Leakage Current ILKG (nA)
Output Switch Leakage Current
800
700
600
28V
500
400
300
200
12V
100
5V
3V
0
-50
-25
0
25
50
75
100
125
150
175
o
Temperature ( C)
Supply Voltage (V)
Output Leakage Current vs Temperature
Output Leakage Current vs Supply Voltage
70
Output Current Limit IOCL (mA)
Output Current Limit
Output Current Limit IOCL (mA)
PRELIMINARY - CONFIDENTIAL
Output Switch On Voltage
TA = +25 C
60
50
40
30
20
10
0
70
60
28V
50
40
3V
30
12V
5V
20
10
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
-50
Supply Voltage (V)
Document number: DS38077 Rev. 2 - 2
0
25
50
75
100
125
150
175
o
Temperature ( C)
Output Current Limit vs Supply Voltage
AH3768Q
-25
Output Current Limit vs Temperature
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AH3768Q
Q
Thermal Performance Characteristics
Package type: SOT23
TA (°C)
25
50
60
70
80
85
90
100
105
110
120
125
130
140
150
PD (mW)
230
184
166
147
129
120
110
92
83
74
55
46
37
18
0
Power Dissipation Curve
300
Power Dissipation PD (mW)
PRELIMINARY - CONFIDENTIAL
(1)
200
100
0
-40
0
25
50
75
100
Ambient Temperature TA
(2)
125
150
(oC)
Package type: SIP-3
TA (°C)
25
50
60
70
80
85
90
100
105
110
120
125
130
140
150
PD (mW)
550
440
396
362
308
286
264
220
198
176
132
110
88
44
0
PD (mW)
Power Dissipation Curve
600
500
400
300
200
100
0
-40
0
25
50
75
100
125
150
TA (°C)
AH3768Q
Document number: DS38077 Rev. 2 - 2
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AH3768Q
Q
PRELIMINARY - CONFIDENTIAL
Ordering Information
AH3768Q - XXX - X
Packing
Package
7 : Tape & Reel
A: Ammo Box (Note 14)
B: Bulk (Note 15)
P : SIP-3
SA : SOT23
7” Tape and Reel
Part Number
Quantity
Suffix
Bulk
Part Number
Suffix
Part Number
Package
Code
Packaging
Quantity
AH3768Q-P-A
AH3768Q-P-B
P
P
SIP-3
SIP-3
NA
1,000
NA
-B
NA
NA
NA
NA
AH3768Q-SA-7
SA
SOT23
NA
NA
3,000/Tape & Reel
-7
Notes:
Ammo Box
Quantity Part Number
Suffix
4,000/Box
NA
NA
-A
NA
NA
14. Ammo Box is for SIP-3 Spread Lead.
15. Bulk is for SIP-3 Straight Lead.
Marking Information
(1)
Package Type: SOT23
( Top View )
XX Y W X
Part Number
AH3768Q
(2)
XX : Identification code
Y : Year 0 to 9
W : Week : A to Z : 1 to 26 week;
a to z : 27 to 52 week; z represents
52 and 53 week
X : Internal code
Package
SOT23
Identification Code
WT
Package Type: SIP-3
( Top View )
Part Number
3768Q
Y WW X
AH3768Q
Document number: DS38077 Rev. 2 - 2
Y : Year : 0~9
WW : Week : 01~52, "52" represents
52 and 53 week
X : Internal Code
Part Number
Package
Identification Code
AH3768Q
SIP-3
3768Q
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AH3768Q
Q
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
Package Type: SOT23
All 7°
H
K1
K
SOT23
Dim
Min
Max
Typ
A
0.37
0.51
0.40
B
1.20
1.40
1.30
C
2.30
2.50
2.40
D
0.89
1.03 0.915
F
0.45
0.60 0.535
G
1.78
2.05
1.83
H
2.80
3.00
2.90
J
0.013 0.10
0.05
K
0.890 1.00 0.975
K1
0.903 1.10 1.025
L
0.45
0.61
0.55
L1
0.25
0.55
0.40
M
0.085 0.150 0.110
a
8°
All Dimensions in mm
GAUGE PLANE
0.25
J
a
M
A
L
C
L1
B
D
F
G
0.17/0.37
Min/Max
PART
MARKING
SURFACE
0.5/0.7
PRELIMINARY - CONFIDENTIAL
(1)
Die
Hall Sensor
Pin1
1.4/1.5
Sensor Location – To be updated
AH3768Q
Document number: DS38077 Rev. 2 - 2
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AH3768Q
Q
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
Package Type: SIP-3 Bulk
Sensor location to be added
SIP-3 (Bulk)
Dim
Min
Max
A
3.9
4.3
a1
5° Typ
a2
5° Typ
a3
45° Typ
a4
3° Typ
B
2.8
3.2
C
1.40
1.60
D
0.33
0.432
E
0.40
0.508
F
0
0.2
G
1.24
1.30
H
2.51
2.57
J
0.35
0.43
L
14.0
15.0
N
0.63
0.84
P
1.55
All Dimensions in mm
L
a1
J
a2
B
P
N
D
C
A
a3
E
a4
G H
F
Min/Max
0.63/0.84
0.27/0.48
1.90/2.10
1.05/1.25
PART
MARKING
SURFACE
Hall Sensor
1
2
Die
PRELIMINARY - CONFIDENTIAL
(2)
PART
MARKING
SURFACE
3
Sensor Location – To be updated
AH3768Q
Document number: DS38077 Rev. 2 - 2
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AH3768Q
Q
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
Package Type: SIP-3 Ammo Pack
N
D
EF
SIP-3 (Ammo Pack)
Dim
Min
Max
A
3.9
4.3
a1
45° Typ
a2
3° Typ
B
2.8
3.2
C
1.40
1.60
D
0.35
0.41
E
0.43
0.48
F
0
0.2
G
2.4
2.9
N
0.63
0.84
P
1.55
All Dimensions in mm
C
A
G
a1
a2
B
P
Min/Max
0.63/0.84
0.27/0.48
1.90/2.10
1.05/1.25
PART
MARKING
SURFACE
Hall Sensor
1
2
Die
PRELIMINARY - CONFIDENTIAL
(3)
PART
MARKING
SURFACE
3
Sensor Location – To be updated
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
(1)
Package Type: SOT23
Dimensions Value (in mm)
Z
2.9
X
0.8
Y
0.9
C
2.0
E
1.35
AH3768Q
Document number: DS38077 Rev. 2 - 2
12 of 13
www.diodes.com
July 2015
© Diodes Incorporated
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Q
PRELIMINARY - CONFIDENTIAL
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2015, Diodes Incorporated
www.diodes.com
AH3768Q
Document number: DS38077 Rev. 2 - 2
13 of 13
www.diodes.com
July 2015
© Diodes Incorporated