A3953SB-T

IC MOTOR DRIVER PWM FULL 16-DIP

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SeekIC No. : 003567191 Detail

A3953SB-T: IC MOTOR DRIVER PWM FULL 16-DIP

floor Price/Ceiling Price

Part Number:
A3953SB-T
Mfg:
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/13

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Product Details

Quick Details

Series: - Manufacturer: Allegro Microsystems Inc
Applications: PWM Motor Driver Evaluation Tools: -
Number of Outputs: 1 Current - Output: ±1.3A
Package / Case : QFN-16 Voltage - Load: 3 V ~ 50 V
Voltage - Supply: 3 V ~ 5.5 V Operating Temperature: -20°C ~ 85°C
Mounting Type: Through Hole Package / Case: 16-DIP (0.300", 7.62mm)
Supplier Device Package: 16-DIP    

Description

Series: -
Number of Outputs: 1
Evaluation Tools: -
Voltage - Supply: 3 V ~ 5.5 V
Packaging: Tube
Applications: PWM Motor Driver
Mounting Type: Through Hole
Package / Case: 16-DIP (0.300", 7.62mm)
Supplier Device Package: 16-DIP
Operating Temperature: -20°C ~ 85°C
Manufacturer: Allegro Microsystems Inc
Current - Output: ±1.3A
Voltage - Load: 3 V ~ 50 V


Features:

±1.3 A Continuous Output Current
50 V Output Voltage Rating
3 V to 5.5 V Logic Supply Voltage
Internal PWM Current Control
Saturated Sink Drivers (Below 1 A)
Fast and Slow Current-Decay Modes
Automotive Capable
Sleep (Low Current Consumption) Mode
Internal Transient- Suppression Diodes
Internal Thermal- Shutdown Circuitry
Crossover-Current and UVLO Protection



Pinout

  Connection Diagram


Specifications

Load Supply Voltage, VBB . . . . . .. . . . . 50 V
Output Current, IOUT
(Continuous) . . . . . . . . . . . . ........ . ±1.3 A*
Logic Supply Voltage, VCC . . . .. . . . . . 7.0 V
Logic/Reference Input Voltage Range,
VIN . . . . . . . . ......... . . -0.3 V to VCC + 0.3 V
Sense Voltage, VSENSE
(VCC = 5.0 V) . . . . . . . . . . . . . . ........ . 1.0 V
(VCC = 3.3 V) . . . . . . . . . . . ........ . . . . 0.4 V
Package Power Dissipation,
PD . . . . . . . . . . . . . . . . . ........ . . See Graph
Operating Temperature Range,
TA . . . . . . . . . . . . . . ...... . -20°C to +85°C
Junction Temperature, TJ . . . . . . . +150°C†
Storage Temperature Range,
TS . . . . . . . . . . . . . ...... . -55°C to +150°C
* 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.
† Fault conditions that produce excessive junction temperature will activate the device's thermal shutdown circuitry. These conditions can be tolerated but should be avoided.




Description

Designed for bidirectional pulse-width modulated (PWM) current control of inductive loads, the A3953S- is capable of continuous output currents to ±1.3 A and operating voltages to 50 V. Internal fixed off-time PWM currentcontrol 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 source 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 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 used to dynamically brake brush dc motors.

The A3953S- is supplied in a choice of two power packages; a 16-pin dual-in-line plastic package with copper heat-sink tabs, and a 16-pin plastic SOIC with copper heat-sink tabs. For both package styles, the power tab is at ground potential and needs no electrical isolation. Each package type is available in a lead-free version (100% matte tin plated leadframe).




Parameters:

Technical/Catalog InformationA3953SB-T
VendorAllegro Microsystems Inc
CategoryIntegrated Circuits (ICs)
ApplicationsPWM Motor Driver
Number of Outputs1
Voltage - Supply3 V ~ 5.5 V
Voltage - Load3 V ~ 50 V
Current - Output±1.3A
Operating Temperature-20°C ~ 85°C
Package / Case16-DIP
PackagingTube
Drawing Number*
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names A3953SB T
A3953SBT
620 1065 ND
6201065ND
620-1065



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