TLE7243SL Datasheet, PDF (3/28 Pages) Infineon Technologies AG – 8 Channel Protected Low-Side Relay Switch

SPI Driver for Enhanced Relay Control
SPIDER - TLE7243SL
SPIDER - TLE7243SL
1
Overview
Features
• 4 input pins providing flexible PWM configuration
• Limp home functionality (direct driving) provided by a dedicated pin
• 16 bit SPI for diagnostics and control
• Daisy chain capability also compatible with 8bit SPI devices
• Very wide range of digital supply voltage
• Green Product (RoHS compliant)
• AEC Qualified
PG-SSOP-24-7
Description
The SPIDER - TLE7243SL is a eight channel low-side switch in PG-SSOP-24-7 package providing embedded
protective functions.
It is especially designed as relay driver in automotive applications.
A serial peripheral interface (SPI) is utilized for control and diagnosis of the device and the load.
For direct control and PWM there are four input pins available.
The device is monolithically integrated. The power transistors are built by N-channel MOSFETs.
Table 1 Basic Electrical data
Digital supply voltage
Analog supply voltage
Max. ON State resistance at T_j = 150°C for each channel
Nominal load current
V_DD
V_DDA
R_DS(ON,max)
I_{L (nom)}
3.0 V ... 5.5 V
4.5 V ... 5.5 V
2.1 Ω
260 mA
Overload switch off threshold
Output leakage current per channel at 25 °C
Drain to Source clamping voltage
Maximum SPI clock frequency
Diagnostic Features
• latched diagnostic information via SPI register
• Overtemperature monitoring
• Overload detection in ON state
• Open load detection in OFF state
I_{D (OVL,max)}
I_{D (STB,max)}
V_DS(AZ)
f_SCLK,max
950 mA
1 µA
41 V
5 MHz
Type
SPIDER - TLE7243SL
Datasheet
Package
PG-SSOP-24-7
3
Marking
TLE7243SL
Rev. 1.0, 2009-09-30