Datasheet L99H92 (STMicroelectronics)

L99H92
Datasheet Half-bridge pre-driver for automotive applications
Features
• AEC-Q100 qualified QFN32 5x5 exposed pad • RoHs compliant device • Power supply operating range from 4.51 V to 28 V (gate drivers operative from 5.41 V) • 3.3 V/5 V compatible I/Os • All pins linked to the microcontroller, fail-safe input and VDD are made tolerant TQFP32 7x7 to battery exposure exposed pad • Dual half-bridge driver compatible with standard level threshold NMOSFETs • Configurable full-bridge or dual independent half-bridges control – Programmable recirculation path in case of full-bridge control • Dual stage charge pump supporting 100% PWM duty cycle down to 5.41 V battery voltage – High and low side minimum VGS=6.2 V @ VDH=5.5 V and charge pump
Product status link
load current (ICPLOAD) equal to 5 mA L99H92 – High and low side minimum VGS=8.2 V @ VDH≥8 V and charge pump load current (ICPLOAD) equal to 10 mA
Product summary
• Charge pump output available for driving an external reverse battery NMOSFET protection
Order code L99H92Q5-TR
• Programmable gate driving current (up to 170 mA) for output voltage slew rate
Package
QFN32 control
Packing
Tape and reel • Programmable drain-source monitoring for overcurrent protection and programmable cross-current protection time (dead-time)
Order code L99H92QF-TR
• Open load and output short circuit detection in off-state diagnostic mode
Package
TQFP32 7x7 • SPI for control and diagnosis (ST SPI 4.1)
Packing
Tape and reel • Programmable diagnostic output • Two independent current sense amplifiers – Low offset with extremely low thermal drift – Suitable for high-side, in-line and low–side current sensing – Independently programmable gain (10x, 20x, 50x, 100x) – Analog output centered at VDD/2 or VDD/22 • Overtemperature prewarning and shutdown • Analog and digital power supply inputs over/undervoltage protections • Asynchronous and logic independent fail-safe input to switch off all the MOSFETs • Low quiescent current • Support for random HW faults up to ASIL B
Applications
• Sun-roof • Power trunk lift gate • Sliding doors • Window lift, seat-belt pre-tensioners, etc.
DS14069
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Rev 4
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July 2023
www.st.com For further information contact your local STMicroelectronics sales office. Document Outline L99H92 Features Applications Description 1 Block diagram and pins description 1.1 Block diagram 1.2 Pinout 1.3 Pins description 2 Device description 2.1 Supply pins 2.1.1 VS overvoltage warning (VSOVW) 2.1.2 VDH overvoltage (VDHOV) 2.1.3 VDH undervoltage (VDHUV) 2.1.4 VDD overvoltage (VDDOV) 2.1.5 Digital input/output overvoltage (DIOOV) 2.1.6 Power-on reset (POR) 2.2 Standby mode (EN) 2.3 Active mode (OUTE) 2.4 Thermal warning and thermal shutdown (TW/TSD) 2.5 Charge pump (CPOUT) 2.6 Gate drivers 2.6.1 Outputs driving signals (PWM/IN1 and DIR/IN2) 2.6.2 Slew rate control (SLEW) 2.6.3 Short circuit detection / drain-source monitoring (DSHS/DSLS) 2.6.4 Programmable cross current protection time (DT) 2.7 Diagnostic in off-mode (O1DS/O2DS) 2.8 Fail-safe output switch-off input not pin (FSINB) 2.9 Diagnostic not output (DIAGN) 2.10 Current monitors 2.11 Window watchdog (WDG) 3 Application 4 Serial peripheral interface (SPI) 4.1 ST SPI 4.1 4.1.1 Physical layer 4.1.2 Clock and data characteristics 4.1.3 Communication protocol 4.1.4 Address definition 5 Electrical characteristics 5.1 Absolute maximum ratings 5.2 ESD protection 5.3 Thermal data 5.4 Electrical characteristics 5.4.1 Supply, supply monitoring 5.4.2 Power-on reset 5.5 Charge pump 5.6 Full-bridge driver 5.7 VDS monitoring thresholds 5.7.1 Open-load monitoring external full-bridges 5.8 Current sense amplifiers (CSA) 5.9 Fail-safe switch-off input FSINB 5.10 Enable 5.11 DIAGN 5.12 Watchdog 5.13 SPI electrical characteristics 5.14 Oscillator 5.15 Operating modes 6 SPI registers 6.1 Global status byte GSB 6.2 Register map overview 6.3 Status registers 6.4 Control registers 7 Package information 7.1 QFN32L 5x5 mm package information 7.2 TQFP32L 7x7 mm package information Revision history