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DRV8837 Scheda tecnica (PDF) - Texas Instruments

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DRV8837 Datasheet PDF - Texas Instruments
Il numero della parte DRV8837
Scarica  DRV8837 Scarica
Grandezza file   3388.57 Kbytes
Page   56 Pages
Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments
Spiegazioni elettronici DRV8213 4-A Brushed DC Motor Driver with Integrated Current Sense, Current Regulation and Stall Detection

DRV8837 Datasheet (PDF)

Go To PDF Page Scarica Scheda tecnica
DRV8837 Datasheet PDF - Texas Instruments

Il numero della parte DRV8837
Scarica  DRV8837 Click to download

Grandezza file   3388.57 Kbytes
Page   56 Pages
Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments
Spiegazioni elettronici DRV8213 4-A Brushed DC Motor Driver with Integrated Current Sense, Current Regulation and Stall Detection

DRV8837 Scheda tecnica (HTML) - Texas Instruments


DRV8837 Dettagli del prodotto

1 Features
• N-channel H-bridge brushed DC motor driver
• 1.65-V to 11-V operating supply voltage range
• 240-mΩ RDS(on) (High-Side + Low-Side)
• High output current capability: 4-A Peak
• PWM control interface, up to 100 kHz switching
• Supports 1.8-V, 3.3-V, and 5-V logic inputs
• Integrated current sensing and current regulation
• Analog current sense output (IPROPI)
• Gain select (GAINSEL) feature for -
– High accuracy current sensing down to 10 mA
– Optimized RDS(ON) and overcurrent limit for
different current ranges
• Configurable inrush time (RTE Package only)
• Internal charge pump
• Long battery life with low-power sleep mode
– < 60 nA maximum sleep current
• Small package footprint
• Integrated protection features
– VM undervoltage lockout (UVLO)
– Auto-retry overcurrent protection (OCP)
– Thermal shutdown (TSD)
– Stall detection (RTE Package only)

2 Applications
• Brushed DC motor, solenoid, & relay driving
• Water and gas meters
• Electronic smart lock
• Electronic and robotic toys
• Infusion pumps and other portable medical
equipments
• Electric toothbrush
• Beauty & grooming
• Portable printers
• Point-of-sale (POS) devices
• Other battery powered DC motor applications

3 Description
The DRV8213 is an integrated motor driver with Nchannel
H-bridge, charge pump, current sense output,
current regulation, and protection circuitry. The tripler
charge pump allows the device to operate down to
1.65 V to accommodate 1.8-V supply rails and lowbattery
conditions. The charge pump integrates all
capacitors and allows for 100% duty cycle operation.
An internal current mirror implements current sensing
and regulation. This eliminates the need for a large
power shunt resistor, saving board area and reducing
system cost. The IPROPI current sense output allows
a microcontroller to detect motor stall or changes in
load conditions. The gain select (GAINSEL) feature
allows high accuracy current sensing down to 10
mA average motor current. Using the VREF pin,
this device can regulate the motor current during
startup and high-load events without interaction
from a microcontroller. The RTE package supports
sensorless motor stall detection and reporting to
microcontroller.
A low-power sleep mode achieves ultra-low quiescent
current by shutting down most of the internal circuitry.
Internal protection features include undervoltage
lockout, overcurrent, and overtemperature.




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A proposito di Texas Instruments


Texas Instruments (TI) è un'azienda quotata in borsa che progetta e produce prodotti per semiconduttori e informatici.

È stata fondata nel 1930 e ha sede a Dallas, in Texas.

TI è un leader globale nella produzione di circuiti integrati di elaborazione del segnale analogico e digitale (DSP), nonché processori incorporati e altri prodotti di microcontrollore.

La società serve clienti in una varietà di settori, tra cui elettronica automobilistica, di comunicazione, informatica, industriale e di consumo.

Il portafoglio di prodotti di TI include convertitori di dati, amplificatori e comparatori, ICS di gestione dell'alimentazione, microcontrollori, sensori e soluzioni di connettività wireless, tra gli altri.

TI è impegnata per l'innovazione e la soddisfazione del cliente e ha una lunga storia di fornitura di prodotti affidabili e di alta qualità ai suoi clienti.

Con particolare attenzione alla sostenibilità e all'efficienza energetica, TI è dedicato a avere un impatto positivo sul mondo attraverso la sua tecnologia e i suoi prodotti.

*Queste informazioni sono solo a scopo informativo generale, non saremo responsabili per eventuali perdite o danni causati dalle informazioni di cui sopra.




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