A3986
Dual Full-Bridge MOSFET Driver
with Microstepping Translator
In addition to crossover current control, internal circuit protection
provides thermal shutdown with hysteresis and undervoltage lockout.
Special power-up sequencing is not required.
This component is supplied in an 38-pin TSSOP (package LD). The
package is lead (Pb) free, with 100% matte tin leadframe plating.
Description (continued)
The above-supply voltage required for the high-side N-channel
MOSFETs is provided by a bootstrap capacitor. Efficiency is
enhanced by using synchronous rectification and the power FETs
are protected from shoot-through by integrated crossover control
and programmable dead time.
Selection Guide
Part Number
A3986SLD-T
A3986SLDTR-T
Packing*
Tube, 50 pieces per tube
Tape and reel, 4000 pieces per reel
*Contact Allegro for additional packing options
Absolute Maximum Ratings
Characteristic
Supply Voltage
Logic Supply Voltage
Logic Inputs and Outputs
SENSEx pins
Sxx pins
LSSx pins
GHxx pins
GLxx pins
Cxx pins
Operating Ambient Temperature
Junction Temperature
Storage Temperature
T
A
T
J
(max)
T
stg
Range S
Symbol
V
BB
V
DD
Notes
Rating
–0.3 to 50
–0.3 to 7
–0.3 to 7
–1 to 1
–2 to 55
–2 to 5
Sxx to Sxx+15
–2 to 16
–0.3 to Sxx+15
–20 to 85
150
–55 to 150
Units
V
V
V
V
V
V
V
V
V
ºC
ºC
ºC
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
2
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
