Electronic Components Datasheet Search |
|
A3916 Datasheet(PDF) 8 Page - Allegro MicroSystems |
|
A3916 Datasheet(HTML) 8 Page - Allegro MicroSystems |
8 / 11 page Dual DMOS Full-Bridge Motor Driver A3916 8 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com not enabled until the source driver is turned off and the cross- over delay has expired. This feature helps lower the voltage drop during current recirculation, lowering power dissipation in the bridge. OCP If an overcurrent event occurs, both motor bridges are disabled until either SLEEPn is brought low or the VBB supply is cycled. FAULTn This is an open-drain output that is pulled low during a TSD or overcurrent event. The output is released when the die tem- perature falls below the TSD level minus the hysteresis. For an over-current event, the output is held low until either SLEEPn is brought low or the VBB supply is cycled. Parallel Operation The A3916 can be paralleled for applications that require higher output currents. In paralleled mode, the driver can source 1.8 A continuous. The A3916 has two completely independent bridges with separate overcurrent latches. This allows the device to supply two separate loads, and as a result, when paralleled, it is imperative that the internal current control is disabled by shorting the sense pins to ground. Because the overcurrent trip threshold is internally fixed at 0.2 V, the trace resistance must be kept small so the internal current latch is not triggered prematurely. With acceptable margin, the voltage drop across the trace resistance should be under 0.1 V. At a peak current of 2.5 A, the trace resistance should be kept below 40 mΩ to prevent false tripping of the overcurrent latch. Each bridge has some variation in propagation delay. During this time, it is possible that one bridge will have to support the full load current for a very short period of time. Propagation delays are characterized and guard banded to protect the driver from damage during these events. |
Similar Part No. - A3916 |
|
Similar Description - A3916 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |