mm912f634 Freescale Semiconductor, Inc, mm912f634 Datasheet - Page 83

• Manufacturer Part Number: mm912f634
• Description: Mm912f634 - Integrated S12 Based Relay Driver With Lin
• Manufacturer: Freescale Semiconductor, Inc

Functional Description and Application Information
4.12
4.12.1
These outputs are two Low Side drivers intended to drive relays (inductive loads) incorporating the following features:
4.12.1.1
The following Figure shows the basic structure of the LS drivers.
4.12.1.2
The Low Side module is active only in Normal mode; the Low Side drivers are disabled in Sleep and Stop mode.
4.12.2
This section lists and describes the signals that do connect off-chip.
controlled by the Low Side module.
Table 101. Pin Functions and Priorities
Freescale Semiconductor
LSCEN[3:0]
Pin Name
MODE[1:0]
Located in VCR
Located in VSR
Vreg high
VROVIE
VROVC
voltage
LSOTIE
LSxOL
LSOTC
LSxCL
LS1
LS2
•
•
•
•
•
•
LSx
PWM capability
Open load detection
Current limitation
Over-temperature shutdown (with maskable interrupt)
Active clamp
Independent VREG - High Voltage Shutdown
Low Side Drivers - LSx
Introduction / Features
External Signal Description
Block Diagram
Modes of Operation
Pin Function & Priority
High Voltage Output
LS - Control
Interrupt
Control
Module
VDD Digital
Status
on/off
Figure 22. Low Side Drivers - Block Diagram
I/O
O
O
VREG high voltage shutdown (maskable interrupt)
overtemperture shutdown (maskable interrupt)
4Bit
Low Side Power Output Driver, Active Clamping
Low Side - Driver
open load detection
Sleep2p5 Digital
current limitation
(active clamp)
Description
Table 101
PWMCSx
PWMLSx
shows all the pins and their functions that are
1Bit
VREG HV
Shutdown
Control
Latch
Pin Function after Reset
Low Side Drivers - LSx
active
clamp
ANALOG
PGND
LS1
LS2
MM912F634
LSx
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