L99H02QFTR STMicroelectronics

L99H02 H-bridge gate driver for automotive applications Datasheet - production data Applications Wiper Power door Seat belt tensioner Seat positioning PowerSSO-36 Valve tronic Park break 2H motors Features Description AEC-Q100 qualified Operating supply voltage 6 V to 28 V The L99H02 is designed to drive 4 external N-channel MOS transistors in H-bridge Central 2-stage charge pump configuration for DC-motor driving in automotive 100% duty cycle applications. A free configurable current sense Full R down to 6 V (standard level DSon amplifier is integrated. The integrated standard threshold MOSFETs) serial peripheral interface (SPI) controls the device and provides diagnostic information. An Charge pump output available for driving an interface pin for the thermal sensors of the external reverse battery NMOSFET protection external MOSFETs is implemented. Charge pump current limited PWM operation up to 30 kHz SPI interface Current sense amplifier / free configurable Zero adjust for end of line trimming Power management: programmable free wheeling Sensing circuitry of external MOSFETs with embedded thermal sensors Table 1. Device summary Order codes Package Part number (tube) Part number (tape and reel) Part number (tray) PowerSSO-36 L99H02XP L99H02XPTR - LQFP32 - L99H02QFTR L99H02QF February 2021 DS12547 Rev 6 1/51 This is information on a product in full production. www.st.comContents L99H02 Contents 1 Block diagram and pin description . 7 1.1 Pin description 7 1.2 Pinout LQFP32 9 2 Electrical specifications . 12 2.1 Absolute maximum ratings 12 2.2 ESD protection . 12 2.3 Thermal data 13 2.4 Electrical characteristics 13 2.5 SPI - electrical characteristics . 21 3 Device description . 25 3.1 Dual power supply: V and V S CC . 25 3.2 Standby mode (EN) . 25 3.3 H-bridge control (DIR, PWM, bit FW) 25 3.4 Resistive low 27 3.5 Diagnostic functions . 27 3.6 Overvoltage and undervoltage detection . 27 3.7 Charge pump 28 3.8 Temperature warning and thermal shutdown 28 3.9 Short-circuit detection / drain source monitoring . 28 3.10 Programmable cross current protection 28 3.11 Current sense amplifier (CSA) . 29 3.12 Thermal sensor interface / H-bridge switch-off input 29 3.12.1 EXT TS-bit = low (active off) . 29 3.12.2 EXT TS-bit = high (thermal sensor interface) 29 3.13 Watchdog . 29 4 Functional description of the SPI . 31 4.1 Signal description . 31 4.1.1 Serial clock (CLK) . 31 4.1.2 Serial data input (DI) . 31 2/51 DS12547 Rev 6