A6850KLTR-T Allegro Microsystems Inc, A6850KLTR-T Datasheet - Page 8

• Manufacturer Part Number: A6850KLTR-T
• Description: IC SWITCH INTERFACE 2CHAN 8-SOIC
• Manufacturer: Allegro Microsystems Inc
• Type: Hall Effect Switchr

Specifications of A6850KLTR-T

• Input Type: Voltage
• Output Type: Voltage
• Interface: 2-Wire Serial
• Current - Supply: 5mA
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Interface Applications: Microprocessors, 2 Wire Hall Effect Sensor IC
• Supply Voltage Range: 4.75V To 26.5V
• Power Dissipation Pd: 52mW
• Operating Temperature Range: -40°C To +125°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1185-2

A6850
Two-Wire Hall IC Interfacing
When voltage is applied to two-wire Hall effect ICs, current
flows within one of two narrow ranges. Any current level not
within these ranges indicates a fault condition.
Figure 5. Typical Application with 2-Wire Hall Effect ICs
Signal and Fault Table
*
This current range includes all A114x and A118x devices.
V
OUTPUT Pin Short-to-Ground
Logic High from Hall IC
Short-to-Battery
Logic Low from Hall IC
Thermal Shutdown
OUTPUT Pin Open
CC
Controller
VIN
Condition
Digital Output
Digital Output
ADC
ADC
RSENSE1
1.5 kΩ
*
V
CC
V
BAT
Applications Information
or
Output Pin Current
25 to 45
12 to 17
2 to 6.9
RSENSE2
1.5 kΩ
(mA)
0.0
0.0
0.0
1
3
2
4
1 µF
ENABLE1
ENABLE2
SENSE1
SENSE2
Dual Channel Switch Interface IC
The following table describes some of the possible output
conditions that can be monitored through the SENSE pins.
Figure 5 is a typical application using the A6850 with dual
Hall effect ICs.
GROUND
A6850
VIN
Sense Pin Current
7
5
OUTPUT2
OUTPUT1
0.2 to 0.69
2.5 to 4.5
1.2 to 1.7
(mA)
0.0
0.0
0.0
8
6
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
A114x or
A114x or
Wiring Harness
A118x
A118x
Sense Pin Voltage,
R
3.75 to 6.75
sense
1.8 to 2.55
0.3 to 1.04
(V)
= 1.5 kΩ
0
0
0
CBYP
0.01 µF
CBYP
0.01 µF
8