A1383ELHLT-T Allegro, A1383ELHLT-T Datasheet - Page 7

• Manufacturer Part Number: A1383ELHLT-T
• Manufacturer: Allegro

A1381, A1382,
A1383, and A1384
Power-On Time
voltage, the device requires a finite time to power its inter-
nal components before responding to an input magnetic field.
Power-On Time, t
put voltage to settle within ±10% of its steady state value under
an applied magnetic field, after the power supply has reached its
minimum specified operating voltage, V
following chart.
Delay to Clamp
clamp to overshoot its steady state value. The Delay to Clamp,
t
settle within ±1% of its steady state value, after initially passing
through its steady state voltage, as shown in the following chart.
CLP
V
90% V
V
V
CC
CC
CLP(HIGH)
, is defined as: the time it takes for the output voltage to
(min.)
(typ.)
OUT
V
V
0
0
A large magnetic input step may cause the
When the supply is ramped to its operating
t
PO
t
t
Note: Times apply to both high clamp
(shown) and low clamp.
1
t
1
2
1
= time at which output voltage initially
= time at which output voltage settles to
, is defined as: the time it takes for the out-
t
t
1
2
V
reaches steady state clamp voltage
within 1% of steady state clamp voltage
= time at which power supply reaches
= time at which output voltage settles
CC
t
minimum specified operating voltage
CLP
within ±10% of its steady state value
under an applied magnetic field
t
2
t
PO
t
2
V
OUT
Magnetic Input
Programmable Linear Hall Effect Sensors with Analog Output
Available in a Miniature Thin Profile Surface Mount Package
CC
V
(min), as shown in the
OUT
Characteristic Definitions
+t
t
Quiescent Voltage Output
magnetic field: B = 0 G), the output, V
ratio to the supply voltage, V
ranges of V
Guaranteed Quiescent Voltage Output Range
voltage output, V
value of 2.5 V, within the guaranteed quiescent voltage range
limits: V
teed programming range for V
of the initial, V
for setting V
Average Quiescent Voltage Output Step Size
escent voltage output step size for a single device is determined
using the following calculation:
where:
Quiescent Voltage Output Programming Resolution
gramming resolution for any device is half of its programming
step size. Therefore, the typical programming resolution will be:
n is the number of available programming bits in the trim
range,
2
range, and
V
n
OUT(Q)maxcode
–1 is the value of the maximum programming code in the
Err
OUT(Q)
Distribution for
PGVOUT(Q)
V
CC
V
Step
OUT(Q)
OUT(Q)init
OUT(Q)init
and ambient temperature, T
(min) and V
OUT(Q)init
VOUT(Q)
OUT(Q)
is the quiescent voltage output at code 2
(typ)
, as shown in the following diagram.
(typ) = 0.5 × Step
V
, can be programmed around its nominal
OUT(Q)
, and the maximum programming code
Guaranteed Output
=
Range, V
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
OUT(Q)
Programming
V
(min)
In the quiescent state (no significant
OUT(Q)maxcode
CC
OUT(Q)
, throughout the entire operating
(max). The available guaran-
OUT(Q)
V
OUT(Q)
falls within the distributions
2
n
OUT(Q)
(max)
–1
VOUT(Q)
A
Max Code V
–V
.
Distribution for
OUT(Q)init
, has a constant
(typ)
The average qui-
The quiescent
OUT(Q)
.
The pro-
.
n
–1.
(1)
(2)
7