TLE7235EM Infineon Technologies, TLE7235EM Datasheet - Page 23

• Manufacturer Part Number: TLE7235EM
• Description: IC DRIVER SPI RELAY CTRL 24SSOP
• Manufacturer: Infineon Technologies
• Series: -r
• Type: High Side/Low Side Driverr

Specifications of TLE7235EM

• Input Type: SPI
• Number Of Outputs: 8
• On-state Resistance: 900 mOhm, 1.6 Ohm
• Current - Output / Channel: 250mA, 500mA
• Current - Peak Output: -
• Voltage - Supply: 9 V ~ 16 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 24-LSSOP (0.154", 3.90mm Width)
• Packages: PG-SSOP-24
• Channels: 8.0
• Rds (on) (typ): 0.9 Ohm
• Vdd: 3.0 - 5.5 V
• Vds(cl): 41.0 - 52.0 V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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The SPI of TLE7235EM provides diagnosis information about the device and about the load. The diagnosis
information of the protective functions of channel n is latched in the diagnosis flags Dn. It is cleared by the SPI
command CMD.CPL = 1. The CPL command clears itself with the next valid SPI communication frame.
The open load diagnosis of channel n is latched in the diagnosis flag OLn. This flag is cleared by reading the
according diagnosis register.
Following table shows possible failure modes and the according protective and diagnostic action.
Failure Mode
Open Load
Over Temperature
Over Load
(Short Circuit)
Data Sheet
Diagnostic Features
Diagnosis, when channel n is switched on: none
When over temperature occurs, the according diagnosis flag Dn is set. If the
Comment
Diagnosis, when channel n is switched off: according to voltage level at the
output pin, flag OLn is set after time
A diagnosis current can be enabled by SPI command DCCR.DCENn = 1.
affected channel n was active it is switched off.
The diagnosis flags are latched until they have been cleared by SPI
command CMD.CPL = 1.
When over load is detected at channel n, the affected channel is switched
off after time
The diagnosis flags are latched until they have been cleared by SPI
command CMD.CPL = 1.
t
OFF(OVL)
22
and the dedicated diagnosis flag Dn is set.
SPI Driver for Enhanced Relay Control
t
d(OL)
.
Diagnostic Features
Rev. 1.1, 2011-04-05
TLE7235EM