NXP Semiconductors Document Number: MC33912 Rev. 10.0, 8/2016 Technical Data LIN system basis chip with dc motor pre-driver and current sense 33912 The 33912G5/BAC is a Serial Peripheral Interface (SPI) controlled System Basis Chip (SBC), combining many frequently used functions in an MCU based system, plus a Local Interconnect Network (LIN) transceiver. The 33912 has a SYSTEM BASIS CHIP WITH LIN 5.0 V, 50 mA/60 mA low dropout regulator with full protection and reporting ND features. The device provides full SPI readable diagnostics and a selectable 2 GENERATION timing watchdog for detecting errant operation. The LIN Protocol Specification 2.0 and 2.1 compliant LIN transceiver has waveshaping circuitry which can be disabled for higher data rates. Two 50 mA/60 mA high-side switches and two 150 mA/160 mA low-side switches with output protection are available. All outputs can be pulse-width modulated (PWM). Four high voltage inputs are available for use in contact monitoring, or as external wake-up inputs. These inputs can be used as high voltage Analog Inputs. The voltage on these pins is divided by a selectable ratio and available via an analog multiplexer. The 33912 has three main operating modes: Normal (all functions available), Sleep (V off, wake-up via LIN, wake-up inputs (L1-L4), cyclic sense and forced AC SUFFIX (Pb-FREE) DD wake-up), and Stop (V on with limited current capability, wake-up via CS, LIN 98ASH70029A DD bus, wake-up inputs, cyclic sense, forced wake-up and external reset). 32-PIN LQFP The 33912 is compatible with LIN Protocol Specification 2.0, 2.1, and SAEJ2602- 2. This device is powered using SMARTMOS technology. Applications Features Door module: window Full-duplex SPI interface at frequencies up to 4.0 MHz LIN transceiver capable of up to 100 kbps with wave shaping Lift, mirror, door lock, seat control switch Current sense module Seat position motors, occupancy sensor Four high voltage analog/logic Inputs Rain and light sensor, light control, sun roof Configurable window watchdog Wiper, turning light, cruise control Switched/protected 5.0 V output (used for Hall sensors) Climate: small motors, control panel Two 50 mA high-side and two 150 mA/160 mA low-side protected switches Engine control: sensors, small motors 5.0 V low drop regulator with fault detection and low voltage reset (LVR) circuitry 33912 V BAT VS1 VSENSE HS1 VS2 L1 L2 LIN INTERFACE L3 LIN L4 VDD PWMIN LS1 ADOUT0 M ADOUT1 LS2 MCU MOSI ISENSEH MISO SCLK CS ISENSEL RXD HVDD TXD HS2 IRQ RST WDCONF Figure 1. 33912 simplified application diagram 2016 NXP B.V. LGND PGND AGNDMC33912G5AC / MC34912G5AC 1 Orderable parts The 33912G5 data sheet is within MC33912G5 product specifications, Pages 3 to 52 The 33912BAC data sheet is within MC33912BAC product specifications, Pages 53 to 103 Table 1. Orderable part variations (1) Part number Temperature (T ) Package Generation Changes A 1. Increase ESD Gun IEC61000-4-2 (gun test contact with 150 pF, MC33912G5AC -40 to 125 C 330 ohm test conditions) performance to achieve 6.0 kV min on the LIN pin. 2. Immunity against ISO7637 pulse 3b 2.5 3. Reduce EMC emission level on LIN MC34912G5AC -40 to 85 C 32-LQFP 4. Improve EMC immunity against RF - target new specification including 3x68pF 5. Comply with J2602 conformance test MC33912BAC -40 to 125 C 2.0 Initial release MC34912BAC -40 to 85 C Notes 1. To order parts in Tape & Reel, add the R2 suffix to the part number. 33912 2 NXP Semiconductors