Data Sheet, V1.2, July 2009
SPIDER - TLE7232G
SPI Driver for Enhanced Relay Control
Eight Channel Low-Side Switch
Automotive Power
SPI Driver for Enhanced Relay Control
SPIDER - TLE7232G
Table of Contents
Page
Product Summary
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1 Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2 Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2 Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.1 Pin Assignment SPIDER - TLE7232G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2 Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3 Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.1 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4 Block Description and Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . .11
4.1 Power Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.1.1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.2 Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.3 Inductive Output Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.4 Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.6 Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.2.1 Over Load Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2.2 Over Temperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2.3 Reverse Polarity Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.5 Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3 Diagnostic Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4.3.1 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3.2 Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.4 Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
4.4.1 SPI Signal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.4.2 Daisy Chain Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.4.3 Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4.5 SPI Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.4.6 Register Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5 Package Outlines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
6 Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Data Sheet
2
V1.2, 2009-07-15
SPI Driver for Enhanced Relay Control
SPIDER - TLE7232G
The SPIDER - TLE7232G is an eight channel low-side
power switch in PG-DSO-24-13 package providing
embedded protective functions. It is especially
designed for standard relays in automotive
applications.
A serial peripheral interface (SPI) is utilized for
control and diagnosis of the device and the load. For
direct control, there is an input pin available.
The power transistors are built by N-channel vertical
power MOSFETs. The device is monolithically
integrated in Smart Power Technology.
PG-DSO-24-13
Product Summary
Supply voltage
Supply voltage for SO buffer
On-State resistance at 25
°C
Nominal load current
Over load current limitation
Output leakage current per channel at 25
°C
Drain to source clamping voltage
SPI clock frequency
V
dd
V
VSO
R
DS(ON,max )
I
L(nom, max)
I
DS(LIM, min)
I
DS(OFF, max)
V
DS(CL, min)
f
SCLK(max)
4.5 … 5.5 V
3.0 … 5.5 V
1.2
Ω
240 mA
1A
1
µA
48 V
5 MHz
Type
SPIDER - TLE7232G
Data Sheet
Ordering Code
on request
3
Package
PG-DSO-24-13
V1.2, 2009-07-15
SPI Driver for Enhanced Relay Control
SPIDER - TLE7232G
Basic Features
•
•
•
•
•
•
•
16 bit SPI for diagnostics and control
SPI providing daisy chain capability
3.3 V and 5 V compatible SPI
A configurable input pin offers complete flexibility for PWM operation
Stable behavior at under voltage
Green Product (RoHS compliant)
AEC Qualified
Protective Functions
•
•
•
•
Short circuit protection
Over load protection, configurable behavior (limitation or shutdown)
Thermal shutdown, configurable behavior (latch or restart)
Electrostatic discharge protection (ESD)
Diagnostic Functions
•
•
•
•
•
Diagnostic information via SPI
Open load detection in OFF-state
Shorted to GND detection in OFF-state
Over temperature in ON-state
Over load in ON-state
Applications
• Especially designed for driving relays in automotive applications
• All types of capacitive, resistive and inductive loads
Data Sheet
4
V1.2, 2009-07-15
SPI Driver for Enhanced Relay Control
SPIDER - TLE7232G
Overview
1
Overview
The SPIDER - TLE7232G is an eight channel low-side relay switch (1.2
Ω
per channel)
in PG-DSO-24-13 package providing embedded protective functions. The 16 bit serial
peripheral interface (SPI) is utilized for control and diagnosis of the device and the loads.
The SPI interface provides daisy-chain capability in order to assemble multiple devices
in one SPI chain by using the same number of micro-controller pins.
The SPIDER - TLE7232G is equipped with one input pin that can be individually routed
to the output control of each channel thus offering complete flexibility in design and PCB-
layout. The input mapping as well as the boolean operation between input signal an
output control signal is configured via SPI.
The device provides full diagnosis of the load, which is open load, short to GND as well
as short circuit to
V
bat
detection and over load / over temperature indication. The SPI
diagnosis flags indicate latched fault conditions that may have occurred.
Each output stage is protected against short circuit. In case of over load, the current of
the affected channel is limited. There is a temperature sensor available for each channel
to protect the device in case of over temperature. The shut down behavior in case of over
load or over temperature can be configured via SPI for each channel individually.
1.1
Block Diagram
VDD
OUT0
OUT1
IN
input map
boolean operation
output control
OUT2
OUT3
OUT4
OUT5
temperature
sensor
control,
diagnostic
and
protective
functions
short circuit
detection
gate
control
open load
detection
OUT6
OUT7
RST
CS
SCLK
SI
VSO
SO
reset / stand-by
SPI
hardware
configuration
output monitor
diagnosis register
GND
Overview.emf
Figure 1
Data Sheet
Block Diagram
5
V1.2, 2009-07-15
京公网安备 11010802033920号
EEWORLD
