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AH175-PG-A-A

P1-P3P4-P6P7-P9
AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
AH175
Document number: DS31043 Rev. 10 - 2
1 of 9
www.diodes.com
July 2010
© Diodes Incorporated
Description
AH175 is a single-digital-output Hall-Effect latch sensor for
high temperature operation. The device includes an on-chip
Hall voltage generator for magnetic sensing, an amplifier to
amplify Hall voltage, and a comparator to provide switching
hysteresis for noise rejection, an open-collector output pre-
driver. An internal band-gap regulator provides a temperature
compensated supply voltage for internal circuits and allows a
wide operating supply range.
When the magnetic flux density (B) is larger than operate
point (Bop), output is switched on (OUT pin is pulled low).
The output state is held on until a magnetic flux density
reversal falls below Brp. When B is less than Brp, the output
is switched off.
The AH175 is available in SIP-3L and SC59 packages.
Features
• Bipolar Hall-Effect latch sensor
• 3.5V to 20V DC operating voltage
• Open collector pre-driver
• 25mA output sink current
• Built-in power reverse protection
• Operating Temperature: -40ºC~+150ºC
• SIP-3L and SC59 packages
(SC59 is commonly known as SOT23 in Asia)
• Green Molding Compound (No Br, Sb) (Note 1)
Pin Assignments
(Top View)
1.
Vcc
2.
GND
3.
OUT
SIP-3L
1. Vcc
GND 2.
3. OUT
(Top View)
SC59
Applications
• Rotor Position Sensing
• Current Switch
• Encoder
• RPM Detection
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
Typical Application Circuit
M
Driver
&
Control Logic
Ia
Ib
Ic
IA
IC
IB
HB
HA
HC
M: Three Phase Hall Motor
Digital Hall Effect Sensor
Hall Motor Driver
RPM sensing
3 Phase Hall Motor
AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
AH175
Document number: DS31043 Rev. 10 - 2
2 of 9
www.diodes.com
July 2010
© Diodes Incorporated
Pin Descriptions
Pin Name Pin # Description
Vcc 1 Positive Power Supply
GND 2 Ground
OUT 3 Output Stage
Functional Block Diagram
AMP
REG.
1
3
2
V
CC
OUT
GND
Absolute Maximum Ratings (T
A
= 25°C)
Symbol Characteristics Values Unit
V
CC
Supply Voltage 20 V
V
OUT
(off) Output “Off” Voltage 20 V
I
O
(sink) Output “On” Current 25 mA
Ts Storage Temperature Range -65~+150
°C
T
J
Maximum Junction Temperature +150
°C
P
D
Power Dissipation
SIP-3L 550 mW
SC59 230 mW
Recommended Operating Conditions
Symbol Characteristic Conditions Min Max Unit
V
CC
Supply Voltage Operating 3.5 20 V
T
A
Operating Ambient Temperature
(Note 2)
Operating -40 150
°C
Notes: 2. The device P
D
and Safety Operation Area should not be exceeded.
AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
AH175
Document number: DS31043 Rev. 10 - 2
3 of 9
www.diodes.com
July 2010
© Diodes Incorporated
Electrical Characteristics (T
A
= 25°C)
Magnetic Characteristics (T
A
= 25°C, Vcc
= 12V, unless otherwise specified, Note 3)
(1mT = 10 Gauss)
A grade
Symbol Parameter Min Typ. Max Unit
Bops(south pole to brand side) Operation Point 15 - 60 Gauss
Brps(south pole to brand side) Release Point -60 - -15 Gauss
Bhy(|Bopx|-|Brpx|) Hysteresis 30 80 120 Gauss
B grade
Symbol Parameter Min Typ. Max Unit
Bops(south pole to brand side) Operation Point 5 - 80 Gauss
Brps(south pole to brand side) Release Point -80 - -5 Gauss
Bhy(|Bopx|-|Brpx|) Hysteresis 10 80 160 Gauss
Notes: 3. Magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
Operating Characteristics
Marking side
S
B
hy
V
SAT
V
cc
(Output
Voltage)
V
d
B
rp
B
op
0
(Magnetic Flux Density)
V
out
High
Low
Marking side
S
(SIP-3L)
(SC59)
N
N
Symbol Characteristics Conditions Min Typ. Max Unit
V
OUT (SAT)
Output Saturation Voltage
V
CC
= 12V, OUT ”ON”
I
O
= 10mA
- 300 400 mV
I
CC
Supply Current V
CC
= 12V, OUT ”OFF” - 3.5 6 mA
P1-P3P4-P6P7-P9

AH175-PG-A-A

Mfr. #:
Buy AH175-PG-A-A
Manufacturer:
Diodes Incorporated
Description:
Board Mount Hall Effect / Magnetic Sensors HALL IC LATCH SW BI 3.5-20V 25mA
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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