VNQ7040AYTR-E STMicroelectronics

VNQ7040AY-E Quad channel high-side driver with MultiSense analog feedback for automotive applications Datasheet - production data Self limiting of fast thermal transients Configurable latch-off on overtemperature or power limitation with dedicated fault reset pin Loss of ground and loss of V CC PowerSSO-36 Reverse battery through self turn-on Electrostatic discharge protection Features Applications Max transient supply voltage V 41 V CC Operating voltage range V 4 to 28 V All types of Automotive resistive, inductive and CC capacitive loads Typ. on-state resistance (per ch) R 40 m ON Specially intended for Automotive Turn Current limitation (typ) I 34 A LIMH Indicators (up to P27W or SAE1156 and R5W Standby current (max) I 0.5 A STBY paralleled or LED Rear Combinations) Description General Quad channel smart high-side driver with The VNQ7040AY-E is a quad channel high-side MultiSense analog feedback driver manufactured using the latest ST proprietary VIPower technology and housed in LED Mode for channel 0 and 1 PowerSSO-36 package. The device is designed Very low standby current to drive 12 V automotive grounded loads through Compatible with 3 V and 5 V CMOS a 3 V and 5 V CMOS-compatible interface, and to outputs provide protection and diagnostics. MultiSense diagnostic functions The device integrates advanced protective Multiplexed analog feedback of: functions such as load current limitation, overload Load current with high precision active management by power limitation and proportional current mirror overtemperature shutdown with configurable V supply voltage CC latch-off. T device temperature CHIP A FaultRST pin unlatches the output in case of Overload and short to ground (power fault or disables the latch-off functionality. limitation) indication Thermal shutdown indication A dedicated multifunction multiplexed analog OFF-state open load detection output pin delivers sophisticated diagnostic functions such as high precision proportional load Output short to V detection CC current sense, supply voltage feedback and chip Sense enable/disable temperature sense, in addition to the detection of Protections overload and short circuit to ground, short to V CC Undervoltage shutdown and OFF-state open-load. Overvoltage clamp The device features a dedicated LED Mode. Load current limitation September 2014 DocID022412 Rev 8 1/55 This is information on a product in full production. www.st.comContents VNQ7040AY-E Contents 1 Block diagram and pin description . 7 2 Electrical specification . 9 2.1 Absolute maximum ratings . 9 2.2 Thermal data 10 2.3 Electrical characteristics .11 2.3.1 General electrical specification . 11 2.3.2 Bulb mode (default) 17 2.4 Electrical characteristics curves - Bulb Mode 21 2.4.1 LED Mode (Channel 0 and 1) 24 2.5 Electrical characteristics curves - LED mode 28 2.5.1 Truth tables 32 2.5.2 Immunity to electrical transient disturbances on VCC (ISO 7637-2) . 34 3 Protections 35 3.1 Power limitation 35 3.2 Thermal shutdown 35 3.3 Current limitation . 35 3.4 Negative voltage clamp 35 4 Application information . 36 4.1 Protection against reverse battery 36 4.2 Immunity against transient electrical disturbances 37 4.3 MCU I/Os protection . 37 4.4 Multisense - analog current sense 38 4.4.1 Principle of Multisense signal generation . 40 4.4.2 T and V monitor . 42 CASE CC 4.4.3 Short to VCC and OFF-state open-load detection . 43 4.5 Maximum demagnetization energy (V = 16 V) . 44 CC 5 Package and PCB thermal data . 45 5.1 PowerSSO-36 thermal data . 45 2/55 DocID022412 Rev 8