BTS54040-LBF_15 Datasheet, PDF (7/67 Pages) Infineon Technologies AG – SPI Power Controller

BTS54040-LBF
1
Overview
Features
• 8-bit serial peripheral interface (daisy chain capable SPI) for control
and diagnosis
• CMOS compatible parallel input pins for two channels
• Selectable AND- / OR-combination for parallel inputs (PWM control)
• Load type configuration via SPI (bulbs or LEDs) for optimized load
control
• Integrated control for one external smart power switch
• Very low stand-by current
• Device ground independent from load ground
• Green Product (RoHS-Compliant)
• AEC Qualified
TSON-24-1
Description
The BTS54040-LBF is a four channel high-side smart power switch in TSON-24-1 package providing embedded
protective functions. It is specially designed to control standard exterior lighting in automotive applications. In order
to use the same hardware, the device can be configured to bulb or LED mode. As a result, both load types are
optimized in terms of switching and diagnosis behavior.
It is designed to drive exterior lamps up to 27 W or the equivalent LED light.
Table 1 Product Summary
Operating Voltage Power Switch
Logic Supply Voltage
Over Voltage Protection
Maximum Stand-By Current at 25 °C
Maximum ON State Resistance at T_j = 150 °C
39 mΩ channels (Channel 1, 2, 3, 4)
SPI Access Frequency
V_S
V_DD
V_S(AZ,min)
I_VS(STB)
R_DS(ON,max)
f_SCLK(max)
5.5 … 28 V
3.8 … 5.5 V
42 V
1 µA
78 mΩ
3 MHz
Configuration and status diagnosis are done via SPI. An 8-bit serial peripheral interface (SPI) is used. The SPI is
daisy chain capable.
Type
BTS54040-LBF
Data Sheet
Package
TSON-24-1
7
Marking
BTS54040-LBF
Rev. 2.1, 2014-12-05