SI7201 [SILICON]

Si720x Switch/Latch Hall Effect Magnetic Position Sensor;
SI7201
型号: SI7201
厂家: SILICON    SILICON
描述:

Si720x Switch/Latch Hall Effect Magnetic Position Sensor

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Si720x Switch/Latch Hall Effect Magnetic  
Position Sensor Data Sheet  
The Si7201/2/3/4/5/6 family of Hall effect magnetic sensors  
switches and latches from Silicon Labs combines a chopper-stabi-  
FEATURES  
lized Hall element with a low-noise analog amplifier, 13-bit analog-  
• High-Sensitivity Hall Effect Sensor  
• Maximum B operating point/minimum  
OP  
to-digital converter, and a flexible comparator circuit. Leveraging  
Silicon Labs' proven CMOS design techniques, the Si720x family  
incorporates digital signal processing to provide precise compen-  
sation for temperature and offset drift.  
field strength of <1.1 mT  
• Omnipolar or unipolar operation  
• Integrated digital signal processing for  
temperature and offset drift  
compensation  
Compared with existing Hall effect sensors, the Si720x family offers industry-leading  
sensitivity, which enables use with larger air gaps and smaller magnets. For battery-  
powered applications, the Si720x family offers very low power consumption to improve  
operating life.  
• Low 400 nA Typical Current Consumption  
at 5 samples per second  
• Selectable Sensitivity, Hysteresis, Output  
Polarity and Sample Rate  
• Sensitivity Drift < ±3% over Temperature  
The Si720x devices are offered in 3-pin SOT23, 5-pin SOT23, and TO-92 packages,  
with power, ground, a single output pin that goes high or low as the magnetic field in-  
creases, and with the 5-pin parts a disable(sleep) pin, and a tamper output pin. With the  
three-pin package, tamper indication is by the pin going back to its zero field level at  
high magnetic field.  
• Wide Power Supply Voltage  
• 1.71 to 5.5 V  
• 3.3 to 26.5 V  
• Selectable Output Options  
• Open-drain output  
• Digital high/low output  
Applications:  
• Industry-Standard Packaging  
• Surface mount SOT-23 (3 or 5 pin)  
• Camera image stabilization, zoom,  
• Replacement of reed switches in con-  
sumer, and security applications  
and autofocus  
• Through hole TO-92 (3-pin)  
• Fluid level sensing  
• Position sensing of HVAC knob, door  
• 1.4 x 1.6 mm 8-pin DFN package  
(coming soon)  
• Control knobs and selector switches  
locks, windows, and other mechanical  
devices  
• General-purpose mechanical position  
sensing  
• BLDC motor control  
Hall  
Element  
Si7201/2/3/4/5/6  
ADC  
DIS (Optional)  
Control Logic  
OUT1  
Temp / Offset /  
Mechanical Stress  
Compensation  
OUT2 / TAMPERb  
(Optional)  
VDD  
Reg  
GND  
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Rev. 1.2  
Table of Contents  
1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
2. Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
3. DISABLE Pin Timing  
4. Pin Description  
5. Ordering Guide  
. . . . . . . . . . . . . . . . . . . . . . . . . . .10  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .13  
6. Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
6.1 SOT23 3-Pin Package . . . . . . . . . . . . . . . . . . . . . . . . . . .21  
6.2 SOT23-5 5-Pin Package. . . . . . . . . . . . . . . . . . . . . . . . . . .23  
6.3 TO92S 3-Pin Package . . . . . . . . . . . . . . . . . . . . . . . . . . .25  
7. Land Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
7.1 SOT23 3-Pin PCB Land Pattern . . . . . . . . . . . . . . . . . . . . . . . .26  
7.2 SOT23-5 5-Pin PCB Land Pattern . . . . . . . . . . . . . . . . . . . . . . .27  
8. Top Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
8.1 SOT23 3-Pin Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . .28  
8.2 SOT23-5 5-Pin Top Marking . . . . . . . . . . . . . . . . . . . . . . . . .29  
8.3 TO92 Top Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . .29  
9. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
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Rev. 1.2 | 2  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Electrical Specifications  
1. Electrical Specifications  
Unless otherwise specified, all min/max specifications apply over the recommended operating conditions.  
Table 1.1. Recommended Operating Conditions  
Parameter  
Symbol Test Condition  
Min  
Typ  
Max  
Unit  
5.51  
26.5  
Power Supply  
VDD  
VDD  
TA  
Si7201/2/3/4  
Si7205/6  
I grade  
1.71  
V
Power Supply  
Temperature  
Note:  
3.3  
-40  
V
+1252  
°C  
1. 3.6 V for most sensitive parts (see 5. Ordering Guide).  
2. 0-70°C for most sensitive parts (F grade) (see 5. Ordering Guide).  
Table 1.2. General Specifications1  
Parameter  
Symbol Test Condition  
Min  
Typ  
Max  
Unit  
V
Input Voltage High  
Input Voltage Low  
Input voltage Range  
Input Leakage  
VIH  
VIL  
VIN  
IIL  
DIS pin  
0.7 x VDD  
-
-
-
0.3 x VDD  
VDD  
DIS pin  
-
V
DIS pin  
0
V
DIS pin  
1
µA  
V
Output Voltage Low  
VOL  
TAMPERb pin IOL = 3 mA  
VDD > 2 V  
0.4  
TAMPERb pin IOL = 2 mA  
VDD > 1.71 V  
TAMPERb pin IOL = 6 mA  
VDD > 2 V  
0.2  
0.6  
V
V
V
Output Voltage High  
VOH  
TAMPERb pin  
IOH = 2 mA  
VDD – 0.4  
VDD > 2.25 V  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Electrical Specifications  
Parameter  
Symbol Test Condition  
Min  
Typ  
Max  
Unit  
Current Consumption  
IDD  
Sleep timer enabled average at  
0.4  
μA  
VDD = 3.3 V and 200 msec sleep  
time  
Average power depends on the  
sample rate and percent of time  
spent sampling versus sleep mode  
or idle mode. See the ordering  
guide for average power calcula-  
tions for specific devices.  
Sleep mode  
VDD = 3.3 V, T = 25 °C  
VDD = 3.3 V, T = 70 °C  
VDD = 5.5 V, T = 125 °C  
50  
nA  
1000  
5000  
nA  
nA  
Conversion in progress  
VDD = 1.8V  
mA  
3.5  
5
5.5  
6
VDD = 3.3 V  
6.8  
8.0  
VDD = 5.5 V  
Conversion in progress high volt-  
age parts  
6.5  
8.5  
mA  
VDD = 3.3 to 26.5 V  
Idle mode low voltage parts  
VDD = 1.71 to 5.5 V  
0.6  
0.9  
11  
1
mA  
mA  
Idle mode high voltage parts  
VDD = 3.3 to 26.5 V  
1.2  
Conversion Time  
Sample Rate  
TCONV  
First conversion when waking from  
sleep or idle  
µs  
µs  
Additional conversions in a burst  
8.8  
-
FSAMPLE Parts can be configured for sleep  
or idle between samples. Sleep is  
lower power, but the fastest sam-  
pling rate is 8 kHz. Idle allows sam-  
pling rate to be configured to be as  
high as 113 kHz. See the ordering  
guide for details.  
Wake Up Time  
TWAKE  
Time from VDD > 1.71 V to first  
measurement  
1
msec  
Note:  
1. TAMPERb and DIS pin specifications apply when the pin is present (Si7203/4).  
2. Idle time can be factory programmed from 13.2 μsec to 206 msec ±10% or set to zero in which case conversions are done every  
8.8 μsec. Normally idle time is only used at higher sample speeds.  
3. For high voltage parts (VDD = 26.5 V maximum), the power on ramp should be faster than 10 V per second in the start-up region  
from 2 to 3 V.  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Electrical Specifications  
Table 1.3. Output Pin Specifications  
Parameter  
Symbol Test Condition  
Min  
Typ  
Max  
Unit  
Si7201/2/3/4  
Output Voltage Low  
Open Drain or Push Pull  
VOL  
IOL = 3 mA  
VDD > 2 V  
IOL = 2 mA  
VDD > 1.71V  
IOL = 6 mA  
VDD > 2 V  
0.4  
V
0.2  
0.6  
1
V
V
Leakage  
IOH  
µA  
Output High  
Output Pin Open Drain  
Output Voltage High  
Output Pin Push Pull  
VOH  
IOH = 2 mA  
VDD – 0.4  
V
VDD > 2.25 V  
Slew Rate  
TSLEW  
5
%VDD/ns  
Si7205/6  
Output Voltage Low  
VOL  
IOL = 11.4 mA  
VDD > 6 V  
0.4  
V
Safe Continuous Sink Current  
Leakage  
20  
1
mA  
µA  
IOH  
Output High  
Output Pin Open Drain  
Slew Rate  
TSLEW  
5
4
%VDD/ns  
mA  
Digital Output Mode  
Output Pin Shorted to VDD  
ISHORT  
VDD = 12 V  
Average current as pin cycles  
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Rev. 1.2 | 5  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Electrical Specifications  
The Si7205 and Si7206 can be configured to signal the status equivalent to output high or low by modulating the power supply current.  
If configured in this way, the following are the specifications for the amount of current that will be drawn for the “output high” state.  
Table 1.4. IDD Signaling  
Parameter  
Symbol Test Condition  
Min  
Typ  
Max  
Unit  
IDD Signaling Current  
IDO  
VDDH > 6 V  
8
10  
12  
mA  
Table 1.5. Magnetic Sensor1  
Parameter  
Symbol Test Condition  
Min  
Typ  
Max  
Unit  
Offset  
BOFF  
20 mT scale  
±150  
±250  
µT  
VDD = 1.71 to 3.6 V  
0-70°C  
20 mT scale  
VDD = 1.71 to 5.5 V  
±250  
+450,  
-350  
µT  
Full temperature range  
0-70°C  
Gain Accuracy  
5
%
%
Full temperature range  
10  
RMS Noise2  
Room temp, 20 mT range, VDD = 5  
V
30  
µT rms  
Note:  
1. See the Magnetic Sensors Selector Guide for operating release points. These are defined as maximum operating point and mini-  
mum release point over the operating temperature range and do not include the effect of noise.  
2. For a single conversion. This can be reduced by the square root of N by filtering over N samples. See ordering guide for samples  
taken per measurement.  
Table 1.6. Temperature Compensation  
Parameter  
Symbol Test Condition  
Flat Tempco.  
Min  
Typ  
Max  
Unit  
Bop and Brp vs Temperature  
< ±0.05  
%/°C  
0-70°C  
Neodymium compensation  
Ceramic compensation  
-0.12  
-0.2  
%/°C  
%/°C  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Electrical Specifications  
Table 1.7. Thermal Characteristics  
Parameter  
Symbol  
θJA  
Test Condition  
Value  
212.8  
45  
Unit  
°C/W  
°C/W  
°C/W  
°C/W  
Junction to Air Thermal Resistance  
Junction to Board Thermal Resistance  
Junction to Air Thermal Resistance  
Junction to Board Thermal Resistance  
JEDEC 4 layer board no airflow SOT23-5  
JEDEC 4 layer board no airflow SOT23-5  
JEDEC 4 layer board no airflow SOT23-3  
JEDEC 4 layer board no airflow SOT23-3  
θJB  
θJA  
254.6  
54.8  
θJB  
Table 1.8. Absolute Maximum Ratings1  
Parameter  
Symbol Test Condition  
Min  
-55  
-65  
Typ  
Max  
Unit  
°C  
Ambient Temperature Under Bias  
Storage Temperature  
Si7201/2/3/4  
125  
150  
°C  
Voltage on I/O Pins  
-0.3  
-0.3  
VDD+0.3  
6
V
V
Voltage on VDD with Respect to  
Ground  
ESD Tolerance  
HBM  
CDM  
2
kV  
V
500  
Si7205/6  
Voltage on Ouput pin2  
-21  
-21  
40  
40  
V
V
Voltage on VDD with Respect to  
Ground3  
ESD Tolerance  
HBM  
CDM  
8
kV  
V
500  
Notes:  
1. Absolute maximum ratings are stress ratings only, operation at or beyond these conditions is not implied and may shorten the life  
of the device or alter its performance.  
2. The output pin can withstand EMC transients per ISO 7637-2-2-11 and Ford EMC-CS-2009.1 with a current limiting resistor of  
220 Ω to a local bypass cap of 0.1 μF and additional 22 Ω between the capacitor and ground..  
3. VDD can withstand automotive EMC transients per ISO 7637-2-2-11 and Ford EMC-CS-2009.1 with a current limiting resistor of  
220 Ω.  
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Rev. 1.2 | 7  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Functional Description  
2. Functional Description  
The Si7201/2/3/4/5/6 family of Hall Effect magnetic sensors digitize the component of the magnetic field in the z axis of the device (pos-  
itive field is defined as pointing into the device from the bottom). The digitized field is compared to a pre-programmed threshold and the  
output pin goes high or low if the threshold is crossed. The parts are normally used to detect the presence or absence of a magnet in  
security systems, as position sensors or for counting revolutions.  
Table 2.1. Part Ordering Guide  
Part Number  
Si7201  
Description  
Low voltage switches  
Si7202  
Low voltage latches  
Si7203  
Low voltage switch with tamper and/or disable pins  
Low voltage latches with tamper and/or disable pins  
High voltage switches  
Si7204  
Si7205  
Si7206  
High voltage latches  
The output pin (push pull or open collector) can go high or low when the magnetic field crosses a threshold. The output pin configura-  
tion is determined by the type of part ordered.  
The parts are preconfigured for the magnetic field measurement range, magnetic field operate and release points, sleep time, tempera-  
ture compensation, tamper threshold and digital filtering and will wake into this mode when first powered. The specific configuration  
output type (open collector or push pull) are determined by the part number. See Magnetic Sensors Selector Guide for details.  
Examples:  
VOUT  
VOH  
VOL  
BTAMPER  
Brp Bop  
Figure 2.1. Unipolar Switch with Tamper  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Functional Description  
VOUT  
VOH  
VOL  
B
BTAMPER  
Bop Brp  
Brp Bop  
BTAMPER  
Figure 2.2. Omnipolar Swith with Tamper  
VOUT  
VOH  
VOL  
B
Brp  
Bop  
Figure 2.3. Latch  
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Rev. 1.2 | 9  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
DISABLE Pin Timing  
3. DISABLE Pin Timing  
For a part that has a DISABLE pin, DISABLE high will put the part in complete sleep mode with IDD typical of 50 nA. When DISABLE  
goes low, the part will wake and initiate a measurement. For a single measurement, this takes 11 μsec typically. Additional measure-  
ments in a burst take 8.8 μsec. Once the measurement (burst) is complete, the output pin status is updated and the part enters idle  
mode. The part will make a new measurement or measurement burst at the time-interval determined by the idle timer (typically 1 msec).  
The idle timer is reset when DISABLE transitions from high to low, so the time from the first measurement until the next measurement  
will always be the programmed idle time.  
Disable low pulses can be as short as 1 μsec. For pulses shorter than a conversion burst, the part will make one burst and then go back  
to sleep.  
When disable returns high, a measurement in progress (if any) will complete and the part will enter sleep mode.  
As the idle time is typically long (i.e. 1 msec) compared to the measurement time (i.e. 11 μsec), it is possible to keep the DISABLE pin  
low duration short (i.e. 15 μsec) and have a long period in the sleep state. This is an effective way to control the sample rate and power.  
For example, if the part is programmed to make a single measurement at a time and is programmed with an idle time of 1 msec and  
DISABLE is pulsed low for 15 μsec every 50 msec, then the average IDD will be:  
• 11 μsec to wake and make a measurement at IDD typical of 5.0 mA (3.3V)/(50.015 msec cycle time) = 1.0 μA  
• 4 μsec in idle mode at typical current of 600 μA/(50.015 msec cycle time) = 0.05 μA  
• 50 msec in sleep mode at 50 nA/(50.015 msec cycle time) = 0.05uA  
• Or 1.1 μA total  
As the programmed idle time is shorter than the DISABLE low time in the example, the value of the programmed idle time does not  
make a difference.  
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Rev. 1.2 | 10  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Pin Description  
4. Pin Description  
1
1
5
3
2
2
3
4
1
2
3
SOT-23, 3-Pin  
Top View  
SOT-23, 5-Pin  
Top View  
TO-92, 3-Pin  
Front View  
Figure 4.1. Si720xxx Pin Assignments  
Note:  
The 3-pin option includes part numbers: Si7201/2/5/6.  
The SOT-23 5 pin option include part numbers: Si7203/4.  
Table 4.1. Si7201/2/5/6 (SOT23 3-pin Package)  
Pin Name  
VDD  
Pin Number  
Description  
1
2
3
Power 1.71 to 5.5 V or 3.3 to 26.5 V  
Switch/latch output  
Ground  
OUT1  
GND  
Table 4.2. Si7203/4/5 (SOT23 5-pin Package)  
Pin Name  
OUT2/TAMPERb  
GND  
Pin Number  
Description  
1
2
3
OUT2/TAMPERb (tamper/high field indicator)  
Ground  
DIS  
Disables part (puts into sleep mode) when high. Measurement cycle will resume when pin goes  
low  
VDD  
4
5
Power 1.71 to 5.5 V  
Switch/latch output  
OUT1  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Pin Description  
Table 4.3. Si7201/2/5/6 (TO-92 Package)  
Pin Name  
VDD  
Pin Number  
Description  
1
2
3
Power  
Ground  
Output  
GND  
OUT1  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Ordering Guide  
5. Ordering Guide  
Si72 0 1  
B
xx F V R  
Silicon Labs Magnetic Sensor Family  
Output Type  
Feature Set Major  
1, 3, 5 = Switch  
2, 4, 6 = Latch  
Revision  
Feature Set Minor  
See Selector Guide for breakdown of feature set  
Temperature Grade  
F = (0 to +70)  
I = (-40 to +125)  
Package  
V = SOT23, B = TO92, M = DFN8  
Tape and Reel (Optional)  
Figure 5.1. Si720x Part Numbering  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Ordering Guide  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Ordering Guide  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Ordering Guide  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Ordering Guide  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Ordering Guide  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Ordering Guide  
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Rev. 1.2 | 19  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Ordering Guide  
Additional Information  
For information on the below specifications of each OPN please refer to the Magnetic Sensors Selector Guide:  
• Current Consumption  
• Amount of digital filtering applied to the samples  
• Time between measurements  
• Temperature compensation  
A temperature compensation can be applied to the field data to adjust for the variation in field with temperature for common magnet  
types.  
Note: North pole of a magnet at the bottom of a SOT23 package, top of a DFN 8 package(coming soon) or front of a TO92 package is  
defined as positive field.  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Package Outline  
6. Package Outline  
6.1 SOT23 3-Pin Package  
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Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Package Outline  
Table 6.1. SOT23 3-Pin Package Dimensions  
Dimension  
Min  
--  
Max  
1.25  
0.10  
1.15  
0.50  
0.20  
A
A1  
A2  
b
0.00  
0.85  
0.30  
0.10  
c
D
2.90 BSC  
2.75 BSC  
1.60 BSC  
0.95 BSC  
1.90 BSC  
E
E1  
e
e1  
L
0.30  
0°  
0.60  
8°  
θ
aaa  
bbb  
ccc  
ddd  
0.15  
0.20  
0.10  
0.20  
Note:  
1. All dimensions shown are in millimeters (mm) unless otherwise noted.  
2. Dimensioning and Tolerancing per ANSI Y14.5M-1994.  
3. This drawing conforms to the JEDEC Solid State Outline MO-193, Variation AB.  
4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020D specification for Small Body Components.  
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Rev. 1.2 | 22  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Package Outline  
6.2 SOT23-5 5-Pin Package  
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Rev. 1.2 | 23  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Package Outline  
Table 6.2. SOT23-5 5-Pin Package Dimensions  
Dimension  
Min  
--  
Max  
1.25  
0.10  
1.15  
0.50  
0.20  
A
A1  
A2  
b
0.00  
0.85  
0.30  
0.10  
c
D
2.90 BSC  
2.75 BSC  
1.60 BSC  
0.95 BSC  
1.90 BSC  
E
E1  
e
e1  
L
0.30  
0°  
0.60  
8°  
L2  
θ
0.25 BSC  
aaa  
bbb  
ccc  
ddd  
0.15  
0.20  
0.10  
0.20  
Note:  
1. All dimensions shown are in millimeters (mm) unless otherwise noted.  
2. Dimensioning and Tolerancing per ANSI Y14.5M-1994.  
3. This drawing conforms to the JEDEC Solid State Outline MO-193, Variation AB.  
4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020D specification for Small Body Components.  
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Rev. 1.2 | 24  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Package Outline  
6.3 TO92S 3-Pin Package  
Table 6.3. TO92S 3-Pin Package Dimensions  
Dimension  
Min  
1.42  
0.66  
0.33  
0.40  
0
Max  
1.62  
0.86  
0.48  
0.51  
0.76  
0.51  
4.10  
2.68  
3.25  
A
A1  
b
b1  
b2  
c
0.33  
3.90  
2.28  
3.05  
D
D1  
E
e
1.27 TYP  
45° TYP  
e1  
2.44  
2.46  
L
15.10  
15.50  
θ
Notes:  
1. All dimensions shown are in millimeters (mm) unless otherwise noted.  
2. Dimensioning and Tolerancing per ANSI Y14.5M-1994.  
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Rev. 1.2 | 25  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Land Patterns  
7. Land Patterns  
7.1 SOT23 3-Pin PCB Land Pattern  
Dimension  
(mm)  
2.70  
0.95  
1.05  
0.60  
C
E
X
Y
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Rev. 1.2 | 26  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Land Patterns  
7.2 SOT23-5 5-Pin PCB Land Pattern  
Dimension  
(mm)  
2.70  
0.95  
1.05  
0.60  
C
E
X
Y
Note:  
General  
1. All dimensions shown are in millimeters (mm) unless otherwise noted.  
2. Dimensioning and Tolerancing is per the ANSI Y14.5M-1994 specification.  
3. This Land Pattern Design is based on the IPC-7351 guidelines.  
4. All dimensions shown are at Maximum Material Condition (MMC). Least Material Condition (LMC) is calculated based on a Fabri-  
cation Allowance of 0.05 mm.  
Card Assembly  
1. A No-Clean, Type-3 solder paste is recommended.  
2. The recommended card reflow profile is per the JEDEC/IPC J-STD-020D specification for Small Body Components.  
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Rev. 1.2 | 27  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Top Marking  
8. Top Marking  
8.1 SOT23 3-Pin Top Marking  
Note: TTTT is a manufacturing code.  
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Rev. 1.2 | 28  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Top Marking  
8.2 SOT23-5 5-Pin Top Marking  
Note: TTTT is a manufacturing code.  
8.3 TO92 Top Marking  
Note: TTTT is a manufacturing code. PPPP is 72xx.  
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Rev. 1.2 | 29  
Si720x Switch/Latch Hall Effect Magnetic Position Sensor Data Sheet  
Revision History  
9. Revision History  
Revision 1.2  
July, 2019  
• Updated 5. Ordering Guide with newly released part numbers.  
• Si7201-B-1x  
• Si7201-B-2x  
• Si7201-B-3x  
• Si7201-B-4x  
• Si7201-B-8x  
• Si7201-B-9x  
• Updated wording on frontpage to clarify package types and switch vs latch  
Revision 1.1  
March, 2019  
• Removed all mention of AEC-Q100 qualification in product description and feature list.  
Revision 1.0  
July 2018  
• Updated power numbers to be consistent with production test limits.  
• Added more detailed part characteristics to the ordering guide.  
• Updated detailed description to be clearer and more accurate.  
Revision 0.92  
October 4, 2017  
• Added new part number to 5. Ordering Guide (Si7202-B-01-IV(R).  
Revision 0.91  
August 7, 2017  
• Added new part number to 5. Ordering Guide (Si7201-B-08-IV(R).  
Revision 0.9  
June 30, 2017  
• Updated 1. Electrical Specifications .  
• Updated 5. Ordering Guide.  
• Minor typo corrections.  
Revision 0.1  
February 1, 2016  
• Initial release.  
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Rev. 1.2 | 30  
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Support and Community  
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Disclaimer  
Silicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or  
intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical"  
parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Labs reserves the right to make changes without  
further notice to the product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. Without prior  
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