A1361LKTTN-T Allegro Microsystems Inc, A1361LKTTN-T Datasheet

IC,HALL-EFFECT SENSOR,SINGLE-ENDED,BICMOS,SIP,4PIN,PLASTIC

A1361LKTTN-T

Manufacturer Part Number
A1361LKTTN-T
Description
IC,HALL-EFFECT SENSOR,SINGLE-ENDED,BICMOS,SIP,4PIN,PLASTIC
Manufacturer
Allegro Microsystems Inc
Type
Linear - Unipolar, Bipolarr
Datasheet

Specifications of A1361LKTTN-T

Sensing Range
1.4mV/G ~ 4.5mV/G
Voltage - Supply
4.5 V ~ 5.5 V
Current - Supply
12mA
Current - Output (max)
10mA
Output Type
Analog, Ratiometric
Features
Programmable
Operating Temperature
-40°C ~ 150°C
Package / Case
4-SIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
620-1234-2
Features and Benefits
• 1 mm case thickness provides greater coupling for current
• Customer programmable offset and sensitivity
• Factory programmed 0% / °C sensitivity temperature coefficient
• Programmability at end-of-line
• Selectable unipolar or bipolar quiescent voltage levels
• Selectable sensitivity ranges between 0.7 and 1.4 mV/G (A1360),
• Device bandwidth selectable under 50 kHz, via capacitor on
• Ratiometric sensitivity, quiescent voltage output, and clamps for
• Temperature-stable quiescent voltage output and sensitivity
• Precise recoverability after temperature cycling
• Output voltage clamps provide short circuit diagnostic capabilities
• Wide ambient temperature range: – 40°C to 150°C
• Resistant to mechanical stress
Package: 4 pin SIP (suffix KT)
A1360-DS, Rev. 3
Adjustable Bandwidth (50 kHz Maximum) and Analog Output
Low-Noise Programmable Linear Hall Effect Sensor ICs with
sensing applications
1.4 to 4.5 mV/G (A1361) and 4.5 to 16 mV/G (A1362)
FILTER pin
interfacing with application DAC
1 mm case thickness
V+
C
.
BYPASS
VC
C
Ratiometric
Hall Drive
Not to scale
Sensitivity
Functional Block Diagram
Program/Lock
Signal Recovery
Trim Control
Temperature
Sensitivity
Coefficient
GND
Description
New applications for linear output Hall effect sensing, such
as current measurement, require both high accuracy and
increased sensor bandwidth. The Allegro
and A1362 programmable linear Hall effect sensor ICs are
designed specifically to achieve both goals. Available in a
through-hole SIP (single in-line package), the A136x Hall
effect sensor ICs are sensitive and temperature-stable. The
accuracy of these devices is enhanced via programmability on
the device VOUT pin. A capacitor to ground on the FILTER
pin on the A136x can be used to tune the device bandwidth in
a range less than 50 kHz.
These ratiometric Hall effect sensor ICs provide a voltage
output that is proportional to the applied magnetic field. The
quiescent output voltage is user-adjustable around either
50% (bidirectional configuration) or 10% (unidirectional
configuration) of the supply voltage, V
is adjustable within three guaranteed ranges: 0.7 to 1.4 mV/G
(A1360), 1.4 to 4.5 mV/G (A1361), and 4.5 to 16 mV/G
(A1362).
Each BiCMOS monolithic circuit integrates a Hall element,
temperature-compensation circuitry to reduce the intrinsic
sensitivity drift of the Hall element, a small-signal high-gain
amplifier, a clamped low-impedance output stage, and a
proprietary dynamic offset cancellation technique.
Continued on the next page…
A1360, A1361,
Offset
+
To subcircuits
+
CC
and
. The device sensitivity
®
A1360, A1361,
A1362
FILTER
VOUT
(Programming)

Related parts for A1361LKTTN-T

A1361LKTTN-T Summary of contents

Page 1

Low-Noise Programmable Linear Hall Effect Sensor ICs with Adjustable Bandwidth (50 kHz Maximum) and Analog Output Features and Benefits • case thickness provides greater coupling for current sensing applications • Customer programmable offset and sensitivity • Factory programmed ...

Page 2

... The A136x sensor 1 Selection Guide Part Number Packing A1360LKTTN-T 4000 pieces per 13-in. reel A1361LKTTN-T 4000 pieces per 13-in. reel A1362LKTTN-T 4000 pieces per 13-in. reel 1 All variants are programmable for unidirectional or bidirectional use. 2 Contact Allegro for additional packing options ...

Page 3

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output OPERATING CHARACTERISTICS valid over full operating temperature range, T OPERATING CHARACTERISTICS valid over full operating temperature range, T Characteristic Symbol ...

Page 4

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output OPERATING CHARACTERISTICS (continued) valid over full operating temperature range, T Characteristic Symbol 7 Pre-Programming Target Pre-Programming Quiescent V OUT(Q)PRE Voltage ...

Page 5

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output OPERATING CHARACTERISTICS (continued) valid over full operating temperature range, T Characteristic Symbol Drift Characteristics Quiescent Voltage Output Drift ∆V OUT(Q) ...

Page 6

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output may require derating at maximum conditions Thermal Characteristics Characteristic Package Thermal Resistance *Additional thermal information available on Allegro website. Symbol ...

Page 7

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output 100 10 1 0.1 0.01 0.1 1 Capacitance External Capacitor on FILTER Pin, C Characteristic Data Bandwidth Range 10 100 ...

Page 8

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output 180 160 140 120 100 ...

Page 9

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output When the supply is ramped to its operating volt- Power-On Time age, the device requires a finite time to power ...

Page 10

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output A large magnetic input step may cause the clamp Delay to Clamp to overshoot its steady state value. The Delay ...

Page 11

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output The magnetic sensitivity, Sens, Guaranteed Sensitivity Range can be programmed around its nominal value, 0 mV/G depending on ...

Page 12

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output The magnetic sensitivity of an Symmetry Sensitivity Error A136x device is constant for any two applied magnetic fields of equal ...

Page 13

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output C BYPASS 0.1 μF When using Hall-effect technology, a limiting factor for switchpoint accuracy is the small signal voltage developed ...

Page 14

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Overview Programming is accomplished by sending a series of input volt- age pulses serially through the VOUT pin of the ...

Page 15

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Zone The 136x programming logic is designed to accept up to two different key-code combinations sequentially without cycling the supply. ...

Page 16

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Parameter Selection Each of the four programmable parameters can be accessed through its corresponding parameter register. These registers are located ...

Page 17

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Bit Field Selection (Decimal Equivalent) Address Code Format Code in Binary Fuse Blowing Bit 2 Target Bits Fuse Blowing Code ...

Page 18

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Hold Mode Hold mode allows multiple programmable parameters to be tested simultaneously without permanently setting any values. With the 136x ...

Page 19

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Figure 6. Pulses to enter Try mode, zone 2. Example shown is for addressing the Fine Quiescent Voltage Output register. ...

Page 20

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Initial State After system power-up, the programming logic is reset to a known state. This is referred to as the ...

Page 21

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Programming Logic Table Programmable Parameter Register Selection Binary Format Zone (MSB → LSB) (Key) Sens 1 (1) V OUT(Q) (1) ...

Page 22

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Constructing a Current Sensor Using the A136x To construct a current sensor using the A136x, first consider a current carrying ...

Page 23

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Flux Density per Ampere vs. Gap for a Feedthrough Sensor 0.5 1 ...

Page 24

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output Improving Sensing System Accuracy Using the FILTER Pin In low-frequency sensing applications often advantageous to add a simple ...

Page 25

A1360, A1361, Low-Noise Programmable Linear Hall Effect Sensor ICs with and A1362 Adjustable Bandwidth (50 kHz Maximum) and Analog Output 10° +0.08 3.43 –0.05 0.89 MAX 12.14±0.05 +0.08 0.41 –0.05 0.89 MAX 1 +0.08 1.50 –0.05 Copyright ©2008-2009, Allegro MicroSystems, ...

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