A3967SLBT Allegro Micro Systems, Inc., A3967SLBT Datasheet
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A3967SLBT
Manufacturer Part Number
A3967SLBT
Description
SOP24
Manufacturer
Allegro Micro Systems, Inc.
Datasheet
1.A3967SLBTR-T.pdf
(16 pages)
Specifications of A3967SLBT
Date_code
05+
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
A3967SLBT
Manufacturer:
ALLEGRO
Quantity:
5
Part Number:
A3967SLBT
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Company:
Part Number:
A3967SLBTR-T
Manufacturer:
CRYDOM
Quantity:
43
Part Number:
A3967SLBTR-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Load Supply Voltage, V
Output Current, I
Logic Supply Voltage, V
Logic Input Voltage Range, V
Sense Voltage, V
Reference Voltage, V
Package Power Dissipation,
Operating Temperature Range,
Junction Temperature, T
Storage Temperature Range,
* Output current rating may be limited by
duty cycle, ambient temperature, and heat
sinking. Under any set of conditions, do not
exceed the specified current rating or a
junction temperature of 150°C.
ABSOLUTE MAXIMUM RATINGS
SUPPLY
Continuous ..................... ±750 mA
Peak ................................. ±850 mA
(t
(t
P
T
T
SENSE
SLEEP
OUT
OUT
w
w
A
S
D
LOAD
STEP
GND
GND
REF
RC
MS
................................. See page 8
........................... -20°C to +85°C
......................... -55°C to +150°C
DIR
>30 ns) ............. -0.3 V to +7.0 V
<30 ns) ................ -1 V to +7.0 V
2B
2A
2
1
2
2
12
10
8
11
1
2
3
4
5
6
7
9
at T
V
BB2
÷8
TRANSLATOR
& CONTROL
A
OUT
SENSE
LOGIC
= +25°C
REF
TIMER
MICROSTEPPING DRIVER WITH TRANSLATOR
PWM
............... 0.68 V
BB
CC
V
J
V
................ V
BB1
CC
......... +150°C
............. 30 V
........... 7.0 V
24
23
22
21
20
19
18
17
16
13
15
14
Dwg. PP-075-2
IN
PFD
RC
RESET
OUT
LOAD
SUPPLY
SENSE
OUT
ENABLE
LOGIC
SUPPLY
MS
GND
GND
1
2
1B
1A
1
1
CC
*
built-in translator. It is designed to operate bipolar stepper motors in
full-, half-, quarter-, and eighth-step modes, with output drive capabil-
ity of 30 V and ±750 mA. The A3967SLB includes a fixed off-time
current regulator that has the ability to operate in slow, fast, or mixed
current-decay modes. This current-decay control scheme results in
reduced audible motor noise, increased step accuracy, and reduced
power dissipation.
A3967SLB. By simply inputting one pulse on the STEP input the
motor will take one step (full, half, quarter, or eighth depending on two
logic inputs). There are no phase-sequence tables, high-frequency
control lines, or complex interfaces to program. The A3967SLB
interface is an ideal fit for applications where a complex µP is unavail-
able or over-burdened.
esis, under-voltage lockout (UVLO) and crossover-current protection.
Special power-up sequencing is not required.
fused pins for enhanced thermal dissipation. The pins are at ground
potential and need no insulation. A lead (Pb) free (100% matte tin
leadframe) version is also available.
FEATURES
*
footnote are in production but have been determined to be LAST TIME BUY. This
classification indicates that sale of this device is currently restricted to existing
customer applications. The variants should not be purchased for new design
applications because obsolescence in the near future is probable. Samples are no
longer available. Status change: October 31, 2006. Deadline for receipt fo LAST TIME
BUY orders: April 27, 2007. These variants include: A3967SLB and A3967SLBTR.
3967
Pb-based variants are being phased out of the product line. The variants cited in this
A3967SLBTR-T
A3967SLB-T
Part Number
The A3967SLB is a complete microstepping motor driver with
The translator is the key to the easy implementation of the
Internal circuit protection includes thermal shutdown with hyster-
The A3967SLB is supplied in a 24-pin SOIC with four internally
±750 mA, 30 V Output Rating
Satlington
Automatic Current-Decay Mode Detection/Selection
3.0 V to 5.5 V Logic Supply Voltage Range
Mixed, Fast, and Slow Current-Decay Modes
Internal UVLO and Thermal Shutdown Circuitry
Crossover-Current Protection
Pb-free*
®
Yes
Yes
Sink Drivers
24-Lead SOIC
24-Lead SOIC
Package
1000 per reel
31 per tube
Packing