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A3195 데이터시트 PDF




Allegro MicroSystems에서 제조한 전자 부품 A3195은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 A3195 기능
기능 PROTECTED/ HIGH-TEMPERATURE/ HALL-EFFECT LATCH WITH ACTIVE PULL-DOWN
제조업체 Allegro MicroSystems
로고 Allegro MicroSystems 로고


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A3195 데이터시트, 핀배열, 회로
3195
PROTECTED, HIGH-TEMP.,
3195ACTIVE PULL-DOWN
HALL-EFFECT LATCH
PROTECTED, HIGH-TEMPERATURE,
HALL-EFFECT LATCH WITH ACTIVE PULL-DOWN
LATCH
12
3
Dwg. PH-013
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC (100 ms) .......... 115 V*
(continuous) ................................... 26 V
Reverse Battery Voltage,
VRCC (100 ms) ............................ -100 V
(continuous) ................................. -30 V
Magnetic Flux Density, B ........... Unlimited
Reverse Output Voltage, VOUT ......... -0.5 V
Continuous Output Current,
IOUT ........................... Internally Limited
Package Power Dissipation,
PD ........................................ See Graph
Junction Temperature, TJ ................. 170°C
Operating Temperature Range, TA
Suffix “E–” .................... -40°C to +85°C
Suffix “L–” .................. -40°C to +150°C
Storage Temperature, TS ................. 170°C
*Fault condition, internal overvoltage shutdown
above 28 V.
These Hall-effect latches are capable of sensing magnetic fields
while using an unprotected power supply. The A3195– can provide
position and speed information by providing a digital output for mag-
netic fields that exceed their predefined switch points. These devices
operate down to zero speed and have switch points that are designed
to be extremely stable over a wide operating temperature and voltage
range. The latching characteristics make them ideal for use in pulse
counting applications when used with a multi-pole ring magnet.
A 25 mA high-side driver combined with an active pull-down is espe-
cially useful for driving capacitive loads. Output short-circuit protection
allows for an increased wiring harness fault tolerance. The tempera-
ture compensated switch points, the wide operating voltage range, and
the integrated protection make these devices ideal for use in automo-
tive applications such as transmission speed sensors and integrated
wheel bearing speed sensors.
Each monolithic device contains an integrated Hall-effect trans-
ducer, a temperature-compensated comparator, a voltage regulator,
and a buffered high-side driver with an active pull-down. Supply
protection is made possible by the integration of overvoltage shutdown
circuitry that monitors supply fault conditions. Output protection
circuitry includes source and sink current current limiting for short
circuits to supply or ground.
The A3195E– is rated for operation over a temperature range of
-40°C to +85°C; the A3195L– is rated for operation over an extended
temperature range of -40°C to +150°C. They are supplied in a three-
lead SIP (suffix –U) or a surface-mount SOT-89 (suffix –LT).
FEATURES
s Internal Protection For Automotive (ISO/DIN) Transients
s Operation From Unregulated Supply
s Reverse Battery Protection
s Undervoltage Lockout
s Supply Noise-Suppression Circuitry
s Output Short-Circuit Protection
s Output Zener Clamp
s Thermal Protection
s Symmetrical Latching Switch Points
s Operable with Multipole Ring Magnets
Always order by complete part number, e.g., A3195LU .




A3195 pdf, 반도체, 판매, 대치품
3195
PROTECTED, HIGH-TEMP.,
ACTIVE PULL-DOWN
HALL-EFFECT LATCH
TYPICAL OPERATING CHARACTERISTICS
200
OPERATE POINT
100
0 VCC = 3.8 V–26 V
-100
RELEASE POINT
-200
-50 -25 0
25 50 75 100 125 150
AMBIENT TEMPERATURE IN °C
Dwg. GH-052-1
Vcc
Vcc - 1
OUTPUT HIGH, B B RP
(SOURCING CURRENT)
IOUT = -20 mA
Vcc - 2
0.4
VCC = 16 V
IOUT = 5 mA
0.2 OUTPUT LOW, B B OP
(SINKING CURRENT)
I OUT 100 µA
0
-50
-25
0 25 50 75 100
AMBIENT TEMPERATURE IN °C
125 150
Dwg. GH-040-2
TYPICAL OPERATING CHARACTERISTICS
Output Current Limit
20 9.0
OUTPUT LOW, B B OP
(SINKING CURRENT)
0 8.0
VCC = 26 V
-20 VCC = 16 V
-40
OUTPUT HIGH, B B RP
(SOURCING CURRENT)
-60
-50 -25 0
25 50 75 100 125 150
AMBIENT TEMPERATURE IN °C
Dwg. GH-004-1
7.0
VCC = 12 V
6.0 VCC = 3.8 V
5.0
-50
OUTPUT HIGH, B B OP
OUTPUT LOW, B B RP
-25 0 25 50 75 100
AMBIENT TEMPERATURE IN °C
125 150
Dwg. GH-028-2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000

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A3195 전자부품, 판매, 대치품
3195
PROTECTED, HIGH-TEMP.,
ACTIVE PULL-DOWN
HALL-EFFECT LATCH
CRITERIA FOR DEVICE QUALIFICATION
All Allegro sensors are subjected to stringent qualification requirements prior to being released to production.
To become qualified, except for the destructive ESD tests, no failures are permitted.
Qualification Test
Biased Humidity
High-Temperature
Operating Life
Surge Operating Life
Pressure Cooker,
Unbiased
Storage Life
Temperature Cycle
ESD
Human Body Model
ESD
Machine Model
Test Method and
Test Conditions
JESD22-A101
TA = 85°C, RH = 85%
JESD22-A108
TA = 150°C, TJ = 165°C
JESD22-A108
TA = 175°C, TJ = 190°C
JESD22-A102, Method C
MIL-STD-883, Method 1008
TA = 170°C
MIL-STD-883, Method 1010
MIL-STD-883, Method 3015
No. of
Lots
3
Test Length
1200 hrs
Samples
Per Lot
116
3 1200 hrs 116
1 504 hrs 116
3 96 hrs
77
1 1200 hrs
77
3 1000 cycles 153
1
Pre/Post
3 per
Reading
test
1
Pre/Post
3 per
Reading
test
Comments
Device biased for
minimum power
Test to failure
HBM 12 kV
Test to failure
MM 600 V

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