L99MD02XPTR STMicroelectronics

L99MD02 Hexa half-bridge driver with SPI control for automotive applications Features 6 half bridges R = typ.0.9 (HS), 0.64 (LS) at ON T =25C j Current limit of each output at minimum 0.8 A Internal PWM generation * 3*&)7 PWM mode option for all half bridges for hold current PowerSSO-36 Two current monitor outputs SPI interface for data communication Description Temperature warning All outputs overtemperature protected The L99MD02 IC is a 6 x half bridge driver for automotive applications. The device is intended to All outputs short circuit protected drive DC-motors. It is possible to drive 3 V supply voltage 3.0 to 5.3 V CC DC-motors simultaneously or up to 5 DC-motors Very low current consumption in standby mode sequentially. typ. 5 A The integrated 24 bit standard serial peripheral V operating range compliant: 6 18 V S interface (SPI) controls all outputs and provides diagnostic information: normal operation, open-load in on-state, overcurrent, temperature Applications warning and overtemperature. DC motor driver Intended to drive HVAC flaps Table 1. Device summary Order code Package Tube Tape and reel PowerSSO- L99MD02XP L99MD02XPTR 36 February 2011 Doc ID 16082 Rev 5 1/46 www.st.com 1Contents L99MD02 Contents 1 Block diagram 6 2 Overview 7 2.1 Power supply: V 7 CC 2.2 Power supply: V , V 7 SA SB 2.3 Standby mode 7 2.4 PWM mode 8 2.5 Current monitor . 8 2.6 Inductive loads . 8 2.7 Diagnostic functions . 8 2.8 Temperature warning and thermal shutdown 8 2.9 V , V , V monitoring 9 S SA SB 2.10 Open-load detection . 9 2.11 Overload detection 9 2.12 Cross-current protection . 9 3 Pin definitions and functions . 11 4 Electrical specifications . 13 4.1 Absolute maximum ratings 13 4.2 ESD protection 13 4.3 Thermal data 13 4.4 Electrical characteristics . 14 5 SPI electrical characteristics . 19 5.1 SPI timing parameter definition 21 6 Functional description of the SPI . 23 6.1 Signal description 23 6.1.1 Serial clock (SCK) . 23 6.1.2 Serial data input (SDI) 23 6.1.3 Serial data output (SDO) 23 6.1.4 Chip select not (CSN) 23 2/46 Doc ID 16082 Rev 5