mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 411
mc9s12vr48
Manufacturer Part Number
mc9s12vr48
Description
S12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12VR48.pdf
(592 pages)
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Chapter 14
Low-Side Drivers - LSDRV (S12LSDRV1)
14.1
The LSDRV module provides two low-side drivers typically used to drive inductive loads (relays).
14.1.1
The LSDRV module includes two independent low side drivers with common current sink. Each driver has
the following features:
Freescale Semiconductor
(Item No.)
Rev. No.
V01.00
V1.01
V1.02
V1.03
•
•
•
Selectable gate control of low-side switches: LSDRx register bits, PWM or timer channels. See
PIM chapter for routing options.
Open-load detection while enabled
Over-current protection with shutdown and interrupt while enabled
Introduction
– While driver off: selectable high-load resistance open-load detection
(Submitted By)
Features
10 December
22 February
12 April
The information given in this section are preliminary and should be used as
a guide only. Values in this section cannot be guaranteed by Freescale and
are subject to change without notice.
3 April
2010
2011
2011
2011
Date
Descriptions for
LSDR and
Sections
Affected
Register
LSCR
All
All
All
MC9S12VR Family Reference Manual, Rev. 2.2
Preliminary - Subject to Change Without Notice
Table 14-1. Revision History Table
-Initial Version
- Added clarification to open-load mechanism in over-current conditions
- improved clarification to open-load mechanism in over-current conditions
- corrected typos
- added Note on considering settling time t
register description
- added Note on how to disable the low-side driver to LSDR register
description
NOTE
Substantial Change(s)
LS_settling
to LSDR and LSCR
411
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