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MM912G634CV2AP Datasheet(PDF) 81 Page - Freescale Semiconductor, Inc

Part # MM912G634CV2AP
Description  Integrated S12 Based Relay Driver with LIN
PDF  345 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MM912G634CV2AP Datasheet(HTML) 81 Page - Freescale Semiconductor, Inc

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Low Side Drivers - LSx
MM912_634 Advance Information, Rev. 4.0
Freescale Semiconductor
81
4.13
Low Side Drivers - LSx
4.13.1
Introduction / Features
These outputs are two low side drivers intended to drive relays (inductive loads) incorporating the following
features:
•
PWM capability
•
Open load detection
•
Current limitation
•
Over-temperature shutdown (with maskable interrupt)
•
Active clamp
•
Independent VREG - High Voltage Shutdown
4.13.1.1
Block Diagram
The following Figure shows the basic structure of the LS drivers.
Figure 21. Low Side Drivers - Block Diagram
4.13.1.2
Modes of Operation
The Low Side module is active only in Normal mode; the Low Side drivers are disabled in Sleep and Stop mode.
4.13.2
External Signal Description
This section lists and describes the signals that do connect off-chip.
Table 110 shows all the pins and their functions that are controlled by the Low Side module.
Table 110. Pin Functions and Priorities
Pin Name
Pin Function
& Priority
I/O
Description
Pin Function
after Reset
LS1
High Voltage Output
O
Low Side Power Output Driver, Active Clamping
LS1
LS2
O
LS2
ANALOG
MCU
ANALOG
LSx
Low Side - Driver
(active clamp)
open load detection
current limitation
overtemperture shutdown (maskable interrupt)
VREG high voltage shutdown (maskable interrupt)
PGND
active
clamp
Interrupt
Control
Module
LSOTIE
LS - Control
LSx
LSxOL
LSxCL
MODE[1:0]
on/off
Status
PWMLSx
LSOTC
PWMCSx
VROVC
VROVIE
Vreg high
voltage
LSCEN[3:0]
VDD Digital
Sleep2p5 Digital
4Bit
4Bit
VREG HV
Shutdown
Latch
Control
1Bit
Located in VCR
Located in VSR



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