AH3772
HIGH-VOLTAGE, HIGH-SENSITIVITY HALL EFFECT LATCH
PRELIMINARY - CONFIDENTIAL
Description
Pin Assignments
The AH3772 is a high-voltage, high-sensitivity Hall Effect latch IC
designed for commutation of brushless DC motors, flow meters,
linear encoders, and position sensors in industrial and consumer
home appliances and personal care applications. To support a 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 AH3772
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 overcurrent limit
and a zener clamp.
(Top View)
3 OUTPUT
GND 2
1 VDD
SC59 and SOT23
(Top View)
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
3. OUTPUT
2. GND
1. VDD
on (pulled low). The output is held latched until magnetic-flux density
reverses and becomes lower than the release point (BRP).
SIP-3
Features
Applications
•
Bipolar Latch (South Pole: On, North Pole: Off)
•
3.0V to 28V Operating Voltage Range
•
High Sensitivity: BOP and BRP of +25G and -25G Typical
•
Single, Open-Drain Output with Overcurrent Limit
•
Chopper-Stabilized Design Provides
•
•
•
•
•
-
Superior Temperature Stability
-
Minimal Switch-Point Drift
-
Enhanced Immunity to Stress
•
Good RF Noise Immunity
•
Reverse-Blocking Diode and Zener Clamp on Supply
•
-40C to +125°C Operating Temperature
•
ESD (HBM): 6kV
•
Industry Standard SC59, SOT23 and SIP-3 Packages
•
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
•
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
Brushless DC Motor Commutation
Revolution Per Minute (RPM) Measurement
Flow Meters
Angular and Linear Encoder and Position Sensors
Contactless Commutation, Speed Measurement, and Angular
Position Sensing/Indexing in Consumer Home Appliances, Office
Equipment, and Industrial Applications
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ 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 BOP, (Note 10 )
IDD = 5mA
30
28
—
—
55
—
mA
V
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 = +25C, 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 limits the output current IOUT to current limit of IOCL.
AH3772
Document number: DS38106 Rev. 2 - 2
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AH3772
Magnetic Characteristics (Notes 11 &12) (TA = -40°C to +125°C, VDD = 3.0V to 28V, unless otherwise specified)
BOP (South pole to part-marking side)
BRP (North pole to part-marking side)
BHY (|BOPX| - |BRPX|)
Notes:
Parameter
(1mT=10 Gauss)
Max
Unit
Conditions
Min
Typ
VDD = 12V, TA = +25°C
—
25
—
TA = -40°C to +125°C
10
25
40
VDD = 12V, TA = +25°C
—
-25
—
TA = -40°C to +125°C
-40
-25
-10
VDD = 12V, TA = +25°C
—
50
—
TA = -40°C to +125°C
20
50
80
Operation Point
Gauss
Release Point
Hysteresis (Note 13)
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 = +25C, 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
Symbol
Bhy
Turn off
Turn on
(on-state)
VOUT_ON = VOUT(SAT)
Brp
0
Bop
( Magnetic Flux Density B )
S
S
S
Part mark
Part mark
Part mark
AH3772
Document number: DS38106 Rev. 2 - 2
N
N
SC59
SOT23
4 of 14
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N
SIP-3(Ammo Pack)
SIP-3(Bulk Pack)
April 2018
© Diodes Incorporated
AH3772
Typical Operating Characteristics
60.0
60.0
TA = +25oC
50.0
Hyst
Hyst
40.0
30.0
30.0
Bop
20.0
Gauss (G)
Gauss (G)
VDD = 3V
50.0
40.0
10.0
0.0
-10.0
-20.0
Brp
Bop
20.0
10.0
0.0
-10.0
-20.0
Brp
-30.0
-30.0
-40.0
-50.0
-60.0
-40.0
-50.0
-60.0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
-50
30
-25
0
25
100
125
150
Temperature ( C)
VDD = 12V
Switch Points BOP and BRP vs Temperature
60.0
Hyst
VDD = 28V
50.0
Hyst
40.0
40.0
30.0
Bop
20.0
Gauss (G)
Gauss (G)
75
Switch Points Bop and Brp vs Temperature
Switch
Points
Bop
andBBrp
vs Supply
Supply Voltage
Switch
Points
BOP
and
Voltage
RP vs
60.0
50
o
Supply Voltage (V)
0.0
-20.0
Brp
Bop
20.0
10.0
0.0
-10.0
-20.0
Brp
-30.0
-40.0
-40.0
-50.0
-60.0
-60.0
-50
-25
0
25
50
75
100
125
-50
150
-25
0
25
50
75
100
125
150
Temperature (oC)
Temperature (oC)
Switch Points Bop and Brp vs Temperature
Switch
Points BOP and BRP vs Temperature
Switch
Points
Brp
Temperature
Switch
Points
BOPBop
andand
BRP
vsvsTemperature
Supply Current
4.0
5.0
TA = +25 C
Supply Current IDD (mA)
Supply Current IDD (mA)
PRELIMINARY - CONFIDENTIAL
Magnetic Operating Switch Points—BOP and BRP
4.0
3.0
2.0
1.0
3.8
3.5
28V
3.3
3.0
2.8
3V
2.5
12V
2.3
2.0
0.0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
-50 -40 -30 -20 -10
Supply Current vs Temperature
Supply
CurrentvsvsSupply
Supply Voltage
Voltage
Supply
Current
Document number: DS38106 Rev. 2 - 2
10 20 30 40 50 60 70 80 90 100 110 120 130
Temperature (oC)
Supply Voltage (V)
AH3772
0
Supply Current vs Temperature
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AH3772
Typical Operating Characteristics (continued)
TA = +25 C
Output On Voltage VOUT_ON (V)
Output On Voltage VOUT_ON (V)
0.4
0.3
0.2
0.1
0.0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
0.4
28V
0.3
0.2
12V
3V
0.1
0.0
30
-50 -40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90 100 110 120 130
Temperature (oC)
Supply Voltage (V)
Output
OnOn
Voltage
Voltage
Output
Voltagevs
vs Supply
Supply Voltage
Output
Voltagevsvs
Temperature
Output On Voltage
Temperature
30.0
Output Leakage Current (nA)
Output Leakage Current (nA)
Output Switch Leakage Current
TA = +25 C
25.0
20.0
15.0
10.0
5.0
300
275
250
225
200
175
28V
150
125
100
12V
75
3V
50
25
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
o
Temperature ( C)
Supply Voltage (V)
Output
LeakageCurrent
Current vs
Output
Leakage
vsTemperature
Temperature
Leakage
Current
Supply
Voltage
OutputOutput
Leakage
Current
vs vs
Supply
Voltage
Supply Reverse Current
3.0
2.8
750
TA = +25 C
Supply Reverse Current (mA)
Supply Reverse Current (mA)
PRELIMINARY - CONFIDENTIAL
Output Switch On Voltage
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
625
-28V
500
-24V
375
250
-18V
125
0
-50
25
50
75
100
125
150
Supply Reverse Current vs Temperature
Supply Reverse Current vs Temperature
Supply
Reverse
Current
Supply
Voltage
Supply
Reverse
Current
vs vs
Supply
Voltage
Document number: DS38106 Rev. 2 - 2
0
Temperature (oC)
Supply Voltage (V)
AH3772
-25
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AH3772
Thermal Performance Characteristics
Package types: SOT23 and SC59
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
0
-40
25
50
75
100
125
150
Ambient Temperature TA (oC)
(2)
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
0
-40
25
50
75
100
125
150
TA (°C)
AH3772
Document number: DS38106 Rev. 2 - 2
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AH3772
Ordering Information
PRELIMINARY - CONFIDENTIAL
AH3772 - XXX - X
Packing
Package
7 : Tape & Reel
A: Ammo Box (Note 14)
B: Bulk (Note 15)
P : SIP-3
SA : SOT23
W : SC59
7” Tape and Reel
Part Number
Quantity
Suffix
Bulk
Part Number
Suffix
Ammo Box
Quantity Part Number
Suffix
Part Number
Package
Code
Packaging
AH3772-P-A
P
SIP-3
—
—
—
—
4000/Box
-A
AH3772-P-B
P
SIP-3
1000
-B
—
—
—
—
AH3772-SA-7
SA
SOT23
—
—
3000/Tape & Reel
-7
—
—
AH3772-W-7
W
SC59
—
—
3000/Tape & Reel
-7
—
—
Notes:
Quantity
14. Ammo Box is for SIP-3 Spread Lead.
15. Bulk is for SIP-3 Straight Lead.
Marking Information
(1)
Package Type: SOT23 and SC59
( Top View )
XX Y W X
(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
Part Number
Package
Identification Code
AH3772
AH3772
SOT23
SC59
WV
YV
Package Type: SIP-3
( Top View )
Part Number
3772
Y WW X
Part Number
AH3772
AH3772
Document number: DS38106 Rev. 2 - 2
Y : Year : 0~9
WW : Week : 01~52, "52" represents
52 and 53 week
X : Internal Code
Package
SIP-3
8 of 14
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Identification Code
3772
April 2018
© Diodes Incorporated
AH3772
Package Outline Dimensions (All dimensions in mm.)
Please see http://www.diodes.com/package-outlines.html for the latest version.
Package Type: SOT23
All 7°
H
K1
J
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
0°
8°
-All Dimensions in mm
GAUGE PLANE
0.25
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
AH3772
Document number: DS38106 Rev. 2 - 2
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AH3772
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see http://www.diodes.com/package-outlines.html for the latest version.
Package Type: SC59
PRELIMINARY - CONFIDENTIAL
(2)
A
SC59
Dim Min Max Typ
A
0.35 0.50 0.38
B
1.50 1.70 1.60
C
2.70 3.00 2.80
D
0.95
G
1.90
H
2.90 3.10 3.00
J
0.013 0.10 0.05
K
1.00 1.30 1.10
L
0.35 0.55 0.40
M
0.10 0.20 0.15
N
0.70 0.80 0.75
0°
8°
All Dimensions in mm
B C
G
H
K
J
M
N
D
L
0.17/0.37
Min/Max
0.5/0.7
PART
MARKING
SURFACE
Die
Hall Sensor
Pin1
1.4/1.5
Sensor Location
AH3772
Document number: DS38106 Rev. 2 - 2
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AH3772
Package Outline Dimensions (continued) (All dimensions in mm.)
Please see http://www.diodes.com/package-outlines.html for the latest version.
Package Type: SIP-3 Bulk
a4
(
a3(
2x
2x
S
)
a1
(
A
2x
J
(
2x
)
D
SIP-3 (Bulk Pack)
Dim
Min
Max Typ
A
1.40 1.60 1.50
b
0.33 0.43 0.38
b2
0.40 0.508 0.46
c
0.35 0.41 0.38
D
3.90 4.30 4.10
E
2.80 3.20 3.00
e1
1.24 1.30 1.27
F
0.00 0.20
-J
2.62 REF
L
14.00 15.00 14.50
L1
1.55 1.75 1.65
S
0.63 0.84 0.74
-a1
-5
-a2
-5
-a3
-45
-a4
-3
All Dimensions in mm
a2
E
b2
L1
F
L
e1
b
c
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
AH3772
Document number: DS38106 Rev. 2 - 2
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AH3772
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see http://www.diodes.com/package-outlines.html for the latest version.
Package Type: SIP-3 Ammo Pack
a4
(
a3(
)
2x
SIP-3
(Ammo Pack)
Dim
Min
Max Typ
A
1.40 1.60 1.50
b
0.33 0.43 0.38
b2a
0.40 0.52 0.46
c
0.35 0.41 0.38
D
3.90 4.30 4.10
E
2.80 3.20 3.00
e1
1.24 1.30 1.27
e2
2.40 2.90 2.65
F
0.00 0.20
—
J
2.62 REF
L
14.00 15.00 14.50
La
12.90 14.90 13.90
L1
1.55 1.75 1.65
L3
2.00 3.00 2.50
S
0.63 0.84 0.74
—
—
a1
5
—
—
a2
5
—
—
a3
45
—
—
a4
3
All Dimensions in mm
S
D
(
A
J
)
2x
a1
(
2x
2x
a2
E
L3
b2a
L1
F
e1
La
L
c
e2
b
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
(4)
PART
MARKING
SURFACE
3
Sensor Location
AH3772
Document number: DS38106 Rev. 2 - 2
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AH3772
Suggested Pad Layout
PRELIMINARY - CONFIDENTIAL
Please see http://www.diodes.com/package-outlines.html for the latest version.
(1)
Package Type: SOT23
Y
C
Y1
X
(2)
Dimensions Value (in mm)
C
2.0
X
0.8
X1
1.35
Y
0.9
Y1
2.9
X1
Package Type: SC59
Y
Z
Dimensions Value (in mm)
Z
3.4
X
0.8
Y
1.0
C
2.4
E
1.35
C
X
AH3772
Document number: DS38106 Rev. 2 - 2
E
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AH3772
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
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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 © 2018, Diodes Incorporated
www.diodes.com
AH3772
Document number: DS38106 Rev. 2 - 2
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