driven by E910.87 EC Motor 3 x Half bridge controller, universal Features ˘ ˘ ˘ ˘ ˘ ˘ ˘ ˘ ˘ ˘ ˘ Supply voltage range 6.5V to 27V Sleep mode current less than 50µA Gate drive circuit for three external NMOS power FET half bridges (B6 bridge) Power FET monitoring and protection - Cross conduction protection - Current overload and short circuit protection - Over-/undervoltage protection - Overtemperature protection - VGS voltage protection / limitation Adjustable slew rate control Gate driver current up to 300mA Charge pump, 100% PWM possible Enhanced BEMF comparator masking capabilities Flyback detection Adjustable differential input current measurement amplifier Control Interface 2.7V up to 5.3V Temperature range: Junction -40°C to +150°C QFN 7x7 44Ld package ˘ ˘ ˘ ˘ ˘ ˘ Pumps HVAC systems Compressors Fans Automotive applications Industrial machines General Description The E910.87 is a universal ASSP to drive three independent power FET half bridges. This IC contains all supply, safety and drive functions to drive the n-channel power FET bridges. Three integrated BEMF comparators allow the IC to drive the half bridges with a sensor less control algorithm. External µC VPUMP Optional: Reverse battery protection VS Voltage Regulator VDRIVE = 10V VDD = 3.3V Charge pump VIO VCC CPP External VCC Regulator VDRIVE VBAT VDD ˘ VDDA ˘ Applications RESETN EN Watchdog HSON_U HSON_V HSON_W LSON_U LSON_V LSON_W OTP MOSI MISO SCK CSN Oscillator biasing / references Freewheeling Comparators INTN FRW_U FRW_V FRW_W VS_SENS 3 PH U...W B6 Bridge Driver HS driver Voltage Monitor Control Interface Start up / power down system GHS_U GHS_V GHS_W Current source (SR) Tempsens DAC LS driver Digital Control Motor-Current Measurement / Comparator BLDC Motor LV LU GLS_U GLS_U GLS_U LW IMP IMN Power FET Protections IMEAS E910.87 GNDEDC AGND GND ELMOS Semiconductor AG SR PGND Info Sheet QM-No.: 25IS0045E.00 2009-10-13 ELMOS Semiconductor AG – Headquarters Heinrich-Hertz-Str. 1 | 44227 Dortmund | Germany Phone + 49 (0) 231 - 75 49 - 100 | Fax + 49 (0) 231 - 75 49 - 149 [email protected] | www.elmos.de Note ELMOS Semiconductor AG (below ELMOS) reserves the right to make changes to the product contained in this publication without notice. ELMOS assumes no responsibility for the use of any circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. While the information in this publication has been checked, no responsibility, however, is assumed for inaccuracies. ELMOS does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of a life-support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications. Copyright © 2009 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited.