AEK-MOT-2DC70S1

AEK-MOT-2DC70S1 Data brief Automotive-grade Dual DC motor driver up to 15A each Features • • • • • • • Dual DC motor driver Parallel driving – – Bi-directional – Output current up to 15A each device Three DC motor drivers – Up to two in parallel – Bi-directional Dual high-side driver – Parallel driving – Suitable for DC unidirectional driving – One channel up to 85 A and the other up to 25 A Optional encoder input – Three separated connectors Size 65 mm x 83 mm Included in AutoDevKit initiative RoHS compliant Description Product summary Automotive-grade Dual DC motor driver up to 15A each AEKMOT-2DC70S1 High-side driver with MultiSense analog feedback for automotive applications VN7050AJ High-side driver with MultiSense analog feedback for automotive applications VN7E010AJ Automotive fully integrated H-bridge motor driver VN7070BAS AutoDevKit library plugin for SPC5STUDIO STSWAUTODEVKIT AutoDevKit library plugin for SPC5STUDIO SPC5-STUDIO The AEK-MOT-2DC70S1 is a very compact solution for multi DC motor driving applications, embedding all the driver and signal decoding functions on the same board. Together with current sensing capability, the AEK-MOT-2DC70S1 features three independent encoder inputs. The DC motor drivers have separate half-bridge driving which allows up to three separate motors with only two devices, using an appropriate driving sequence. The motor driver is ideal for two-wheel applications and allows engineers to build highly compact motor control solutions. The two high-side drivers facilitate additional driving for system actuators (unidirectional DC motor, LED, pump, etc.). DB4259 - Rev 1 - October 2020 For further information contact your local STMicroelectronics sales office. www.st.com AEK-MOT-2DC70S1 Block diagram 1 Block diagram Figure 1. AEK-MOT-2DC70S1 block diagram DB4259 - Rev 1 page 2/8 DB4259 - Rev 1 2 Schematic diagrams Figure 2. AEK-MOT-2DC70S1 board schematic L1 J1 18 uH 282837-2 +VIN GND C1 1 R70 4.7uF 10K L2 2 18 uH 2B Part Number: 2B Q5 BSS84 +12 V dc INPUT VOLTAGE R71 C6 220uF +12 V 10K C7 100N U1 VNH7070BAS_SO16 R72 TP3 R13 Y G 3 4 R9 C3 1K2 Q1 R10 15K 15K IN_A SEL_0 VCC CS VCC VCC 7 IN_B PWM TP8 R25 JP1 C21 33K 100P OUT_B GND_B GND_B 33N 13 D3 TP5 TP6 J2 1985865 1 10 D4 9 J3 J2541404 R2 CS_1 10R 1K2 1 2 3 4 ENC-B_1 VCC_1 ENC-A_3 ENC-B_3 C10 33K 100P 33K GND ENC-B_1 ENC-A_1 VCC_1 R4 TP4 R18 R6 10R ENCODER-1 ENC-A_1 1K2 1K0 ENC-A_1 ENC-B_1 R56 R12 OUT_B_1 MOTOR-1 TP2 R11 OUT_A_1 D5 SEL_0_1 150060SS75000 ENC-A_1 ENC-B_1 ENC-A_3 ENC-B_3 MSS_1 SW_IN_1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1K5 12 11 AWHW 16G-0202-T IN_A_1 IN_B_1 PWM_1 SEL_0_1 CS_1 N.C. N.C. +5 V GND GND C11 2 8 1K2 R27 OUT_B Rpu 10K R15 14 D2 100P 32K R73 15 C9 33K R8 OUT_A Q6 BSS138 Pull-up switch CS_1 220uF 6 BC846C R7 5 C4 100N Q2 BC846C OUT_A 10k 16 STPS1L60ZFY U2 2 GND_A STPS1L60ZFY 1K8 GND_A STPS1L60ZFY 1K8 TP1 KPHB-1608CGKSYKC-GX R3 STPS1L60ZFY 1 R1 R57 D1 R20 C12 33K 100P R5 33K 10R VCC_1 C2 RED 47uF J8 691322310002 +12 V SIGNAL IN/OUT -1 1 C26 TP13 U5 R36 2 100N VN7E010AJ 1 R48 C30 10k 100P INPUT R47 10k 2 VCC 1K0 OUTPUT LOAD-1 16 J4 1985865 /FaultRST OUTPUT SEn OUTPUT 15 1 N.C. OUTPUT N.C. OUTPUT CS OUTPUT 2 1K0 13 12 D10 R16 6 R41 RED Y 33N G R24 15K C29 Q3 R44 5K1 8 N.C. OUTPUT BC846C 9 3 Q4 4 C17 C16 1K2 220uF IN_A SEL_0 VCC CS 16 VCC VCC IN_B 7 TP19 PWM 8 OUT_B OUT_B GND_B GND_B 33K 14 11 R34 C23 1K5 33N 100P 33K 47uF TP15 TP16 Rpu 100P J7 J2541404 R46 10R 1 2 3 4 ENC-B_2 TP14 VN7050AJ C32 R64 C36 R65 INPUT 3 OUTPUT /FaultRST OUTPUT SEn OUTPUT 16 C33 47uF 100N J9 15 691322310002 14 1 R66 TP23 10k 4 GND TAB OUTPUT R67 13 33K 5 C38 100P TP24 6 R52 SEL0 N.C. SEL1 N.C. MULTISENSE N.C. 12 11 10k 7 Iout/Isense = ~1250 R68 C34 33N 1K3 8 N.C. N.C. 10 9 150060SS75000 1K2 R55 2 1K0 R54 LOAD-2 D11 RED LOAD_2 GND page 3/8 Schematic diagrams 100P 2 100P 10k 1 10k VCC 1K0 R69 33K 10R AEK-MOT-2DC70S1 R51 VCC_2 +12 V U6 TP21 C37 ENCODER-2 R61 TP22 33K GND ENC-B_2 ENC-A_2 VCC_2 ENC-A_2 R50 R53 OUT_B_2 MOTOR-2 33K C27 OUT_A_2 D9 R63 10R 33K J6 1985865 2 D8 R60 R38 33K 10R C13 D7 1 C25 R35 1K2 VCC_1 9 1K2 SIGNAL IN/OUT -2 R21 STPS1L60ZFY 10 TP12 R37 ENCODER-3 ENC-A_3 R59 Pull-up switch ENC-B_2 R19 10R GND ENC-B_3 ENC-A_3 VCC_1 CS_2 1K2 ENC-A_2 TP11 R31 13 12 VNH7070BAS_SO16 100P 33K 1 2 3 4 R58 U3 C35 R45 R33 VCC_2 J2541404 R17 10R ENC-B_3 15 D6 100P 1K2 CS_2 OUT_A C22 33K R42 ENC-A_2 ENC-B_2 SEL_1_3' SEL_0_3 MSS_2 SW_IN_2 5 6 R29 AWHW 16G-0202-T SEL_0_2 GND_A OUT_A 100N JP2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND_A 10k 15K R28 IN_A_2 IN_B_2 PWM_2 SEL_0_2 CS_2 N.C. N.C. +5 V Pull-up switch GND OUT_B_3 (A_2) J5 1 2 TP9 BC846C R26 Iout/Isense = 5000 OUT_A_3 (B_1) MOTOR-3 11 10 100N 1K8 10k 7 C19 220uF R14 1K8 U4 TP18 C18 STPS1L60ZFY OUTPUT STPS1L60ZFY TAB STPS1L60ZFY 5 GND KPHB-1608CGKSYKC-GX 4 R43 14 150060SS75000 3 AEK-MOT-2DC70S1 Key IC device features 3 Key IC device features Table 1. Key IC device features DB4259 - Rev 1 Product Features Max transient supply voltage VNH7070BAS H-bridge motor driver VN7E010AJ VN7050AJ Operating voltage range Typ on-state resistance Current per CH limitation RDS(on) (Ilim) typ (A) (mΩ) Stand-by current (max) Istby (uA) Min (V) Max (V) 40 V 4 28 70 15 1 High-side driver 40 V 4 28 10.5 88 0.5 High-side driver 40 V 4 28 50 30 0.5 page 4/8 AEK-MOT-2DC70S1 Connector pin-out 4 Connector pin-out Table 2. Connector pin-out Pin name DB4259 - Rev 1 Pin number Connector Pin function IN_A_1, IN_A_2 1 JP1, JP2 Clockwise input for H-bridge motor driver IN_B_1, IN_B_2 2 JP1, JP2 Counter-clockwise input for H-bridge motor driver PWM_1, PWM_2 3 JP1, JP2 A square wave signal up to 20 kHz can be used on this pin for motor speed control (H-bridge motor driver) SEL_0_1, SEL_0_2 4 JP1, JP2 In combination with INA and INB, it addresses the CurrentSense information delivered to the micro according to the truth table (H-bridge motor driver) CS_1, CS_2 5 JP1, JP2 Multiplexed analog sense output pin for H-bridge motor driver. It delivers a current proportional to the HSA output current if SEL0 is set high; and to the HSB if SEL0 is set low. It develops a voltage flag for a failure on the relevant output in the ON-state as well as the OFF-state N.C. 6,7 JP1, JP2 Not connected +5V 8 JP1, JP2 5V voltage supply Voltage for Encoder GND 9 JP1 Ground Pull-up switch 9 JP2 Enable pull-up resistor for open load detection in OFF-state for H-bridge motor driver GND 10 JP1, JP2 ENC-A_1, ENC-B_1 11,12 JP1 Encoder output 1 ENC-A_2, ENC-B_2 11,12 JP2 Encoder output 2 ENC-A_3, ENC-B_3 13,14 JP1 Encoder output 3 SEL_1_3, SEL_0_3 13,14 JP2 Address the MultiSense multiplexer for VN7050AJ High side driver MSS_1, MSS_2 15 JP1, JP2 Analog current sense output pin; it delivers a current proportional to the selected load current for High side driver SW_IN_1, SW_IN_2 16 JP1, JP2 Controls output switch state for High side driver Ground page 5/8 AEK-MOT-2DC70S1 AEK-MOT-2DC70S1 dedicated software component 5 AEK-MOT-2DC70S1 dedicated software component Through the dedicated AutoDevKit component, motors can be selectively activated according to application requirements. The dedicated GUI allows intuitive management of three motors directly connected to the VNHxxx devices (MOTOR 1, MOTOR 3, MOTOR 5). For each motor, it is possible to set rotation direction and to connect an encoder for precise positioning. MOTOR / LOAD 2 and MOTOR / LOAD 4 are connected on the VNxxx devices and are therefore they are unidirectionally driven. MOTOR 1, MOTOR / LOAD 2, MOTOR 3, MOTOR / LOAD 4 can be driven in parallel, while MOTOR 5 should be activated separately to avoid improper driving on MOTOR 1 and MOTOR 3. AutoDevKit high-level drivers are very straightforward and comprehensive API support is available through online help in SPC5Studio. The user can invoke the desired functions such as starting a DC motor, increasing or decreasing the DC rotation speed, and braking by just passing the motor parameter (e.g., MOTOR 1, MOTOR 2, … MOTOR 5) to them. The API set includes diagnostic functions indicating if the device is in Fault or in Operative mode. Moreover, it is possible to monitor the device even when it is switched off, to avoid starting the application the application while faults are present. Inside AutoDevKit plugin, there are several examples of API usage, including one using an encoder. The encoder has a ‘K’ factor that should be set in the appropriate #DEFINE in the encoder driver according to the specific motor model. The AutoDevKit also allows you to implement custom PID control, useful for negative feedback systems, by modifying the relevant #DEFINE statements in the PID driver code. DB4259 - Rev 1 page 6/8 AEK-MOT-2DC70S1 Revision history Table 3. Document revision history DB4259 - Rev 1 Date Version 14-Oct-2020 1 Changes Initial release. page 7/8 AEK-MOT-2DC70S1 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. 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Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2020 STMicroelectronics – All rights reserved DB4259 - Rev 1 page 8/8