TLD5541-1QV Datasheet, PDF (5/82 Pages) Infineon Technologies AG – H-Bridge DC/DC Controller with SPI Interface

H-Bridge DC/DC Controller with SPI Interface
TLD5541-1QV
Overview
Table 1 Product Summary
Power Stage input voltage range
Device Input supply voltage range
Maximum output voltage (depending by the
application conditions)
V_POW
V_VIN
V_OUT(max)
Switching Frequency range,
Typical NMOS driver on-state resistance at T_j =
25°C (Gate Pull Up)
Typical NMOS driver on-state resistance at T_j =
25°C (Gate Pull Down)
SPI clock frequency
f_SW
R_{DS(ON_PU)}
R_{DS(ON_PD)}
f_SCLK(MAX)
Protective Functions
• Over load protection of external MOSFETs
• Shorted load, open load, output overvoltage protection
• Input overvoltage and undervoltage protection
• Thermal shutdown of device with autorestart behavior
• Electrostatic discharge protection (ESD)
4.5 V … 55 V
4.5 V … 40 V
55 V as LED Driver Boost Mode
50 V as LED Driver Buck Mode
50 V as Voltage regulator
200 kHz... 700 kHz
2.3 Ω
1.2 Ω
5 MHz
Diagnostic Functions
• Latched diagnostic information via SPI
• Open load detection in ON-state
• Device Overtemperature shutdown and Temperature Prewarning
• Smart monitoring and advanced functions provide I_LED and I_IN information
Limp Home Function
• Limp Home activation via LHI pin
Applications
• Especially designed for driving high power LEDs in automotive applications
• Automotive Exterior Lighting: full LED headlamp assemblies (Low Beam, High Beam, Matrix Beam, Pixel Light)
• General purpose current/voltage controlled DC/DC LED driver
Data Sheet
5
Rev. 1.0, 2016-05-20