A3952SLBTR datasheet, PDF - EEWORLD Datasheet

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A3952SLBTR: DescriptionStepper Motor Controller, 3.5A, PDSO16, POWER, BATWING, SOIC-16; CategoryOther integrated circuit (IC) The signal circuit; File Size193KB，16 Pages; ManufacturerAllegro; Websitehttp://www.allegromicro.com/

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A3952SLBTR Overview

Stepper Motor Controller, 3.5A, PDSO16, POWER, BATWING, SOIC-16

A3952SLBTR Parametric

Parameter Name	Attribute value
Maker	Allegro
Parts packaging code	SOIC
package instruction	SOP,
Contacts	16
Reach Compliance Code	unknown
ECCN code	EAR99
Analog Integrated Circuits - Other Types	STEPPER MOTOR CONTROLLER
JESD-30 code	R-PDSO-G16
length	10.3 mm
Number of functions	1
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-20 °C
Maximum output current	3.5 A
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Certification status	Not Qualified
Maximum seat height	2.65 mm
Maximum supply current (Isup)	40 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
Temperature level	OTHER
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
width	7.5 mm
Base Number Matches	1

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3952

FULL-BRIDGE PWM MOTOR DRIVER

A3952SB

BRAKE

REF

GROUND

LOGIC

SUPPLY

PHASE

ENABLE

LOGIC

GROUND

SENSE

OUTA

LOAD

SUPPLY

LOAD

SUPPLY

OUTB

MODE

GROUND

Data Sheet

29319.1*

Designed for bidirectional pulse-width modulated current control of

inductive loads, the A3952S– is capable of continuous output currents

±2

A and operating voltages to 50 V. Internal fixed off-time PWM

current-control circuitry can be used to regulate the maximum load

current to a desired value. The peak load current limit is set by the

user’s selection of an input reference voltage and external sensing

resistor. The fixed OFF-time pulse duration is set by a user-selected

external RC timing network. Internal circuit protection includes thermal

shutdown with hysteresis, transient suppression diodes, and crossover-

current protection. Special power-up sequencing is not required.

With the ENABLE input held low, the PHASE input controls load

current polarity by selecting the appropriate source and sink driver pair.

The MODE input determines whether the PWM current-control circuitry

operates in a slow current-decay mode (only the selected sink driver

switching) or in a fast current-decay mode (selected source and sink

switching). A user-selectable blanking window prevents false triggering

of the PWM current control circuitry. With the ENABLE input held high,

all output drivers are disabled. A sleep mode is provided to reduce

power consumption when inactive.

When a logic low is applied to the BRAKE input, the braking

function is enabled. This overrides ENABLE and PHASE to turn OFF

both source drivers and turn ON both sink drivers. The brake function

can be safely used to dynamically brake brush dc motors.

The A3952S– is supplied in a choice of four power packages. In all

package styles, the batwing/power tab is at ground potential and needs

no isolation. These devices are also available for operation from -40°C

to +125°C. To order, change the suffix from 'S–' to 'K–'.

Dwg. PP-056

Note that the A3952SB (DIP) and the A3952SLB

(SOIC) are electrically identical and share a

common terminal number assignment.

ABSOLUTE MAXIMUM RATINGS

Load Supply Voltage, V

..................

50 V

Output Current, I

OUT

≤

µs)

..................................

3.5 A

(Continuous) ...............................

2.0 A

Logic Supply Voltage, V

.................

7.0 V

Logic Input Voltage Range,

.......................

-0.3 V to V

+ 0.3 V

Sense Voltage, V

SENSE

......................

1.5 V

Reference Voltage, V

REF

....................

15 V

Package Power Dissipation,

.......................................

See Graph

Operating Temperature Range,

...............................

–20

C to +85

Junction Temperature, T

.............

+150

Storage Temperature Range,

.............................

–55

C to +150

Output current rating may be limited by duty cycle,

ambient temperature, heat sinking and/or forced

cooling. Under any set of conditions, do not

exceed the specified current rating or a junction

temperature of +150°C.

* Fault conditions that produce excessive junction

temperature will activate device thermal shutdown

circuitry. These conditions can be tolerated but

should be avoided.

FEATURES

±2

A Continuous Output Current Rating

50 V Output Voltage Rating

Internal PWM Current Control

Fast and Slow Current-Decay Modes

Sleep (Low Current Consumption) Mode

Internal Transient Suppression Diodes

Under-Voltage Lockout

Internal Thermal Shutdown Circuitry

Crossover-Current Protection

Always order by complete part number:

Part Number

A3952SB

A3952SEB

A3952SLB

A3952SW

Package

16-Pin DIP

28-Lead PLCC

16-Lead SOIC

12-Pin Power-Tab SIP

θJA

43°C/W

42°C/W

67°C/W

36°C/W

θJT

6.0°C/W

2.0°C/W

A3952SLBTR Related Products

	A3952SLBTR	A3952SEBTR
Description	Stepper Motor Controller, 3.5A, PDSO16, POWER, BATWING, SOIC-16	Stepper Motor Controller, 3.5A, PQCC28, POWER, BATWING, PLASTIC, LCC-28
Maker	Allegro	Allegro
Parts packaging code	SOIC	QLCC
package instruction	SOP,	QCCJ,
Contacts	16	28
Reach Compliance Code	unknown	unknown
ECCN code	EAR99	EAR99
Analog Integrated Circuits - Other Types	STEPPER MOTOR CONTROLLER	STEPPER MOTOR CONTROLLER
JESD-30 code	R-PDSO-G16	S-PQCC-J28
length	10.3 mm	11.5062 mm
Number of functions	1	1
Number of terminals	16	28
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-20 °C	-20 °C
Maximum output current	3.5 A	3.5 A
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	QCCJ
Package shape	RECTANGULAR	SQUARE
Package form	SMALL OUTLINE	CHIP CARRIER
Certification status	Not Qualified	Not Qualified
Maximum seat height	2.65 mm	4.57 mm
Maximum supply current (Isup)	40 mA	40 mA
Maximum supply voltage (Vsup)	5.5 V	5.5 V
Minimum supply voltage (Vsup)	4.5 V	4.5 V
Nominal supply voltage (Vsup)	5 V	5 V
surface mount	YES	YES
Temperature level	OTHER	OTHER
Terminal form	GULL WING	J BEND
Terminal pitch	1.27 mm	1.27 mm
Terminal location	DUAL	QUAD
width	7.5 mm	11.5062 mm
Base Number Matches	1	1

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