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The document provides system electrical specifications and structured performance evaluation methods including voltage tests, MOSFET and current sensing tests, motor run/brake/low-speed behavior, temperature measurement and reliability 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No.: OB_DOC_DBM_A_6627L00 |\n| --- | --- |\n| | Key Feature:\u003Cbr>·Single chip BLDC controller solution\u003Cbr>· High integration of MCU, pre-driver, high speed rail-to-rail operation amplifier, high precision LDO, current protection comparator.\u003Cbr>· Six-step BLDC control with hall sensor feedback\u003Cbr>· Forward/Reverse selection\u003Cbr>· 10% duty start, and motor fast sop\u003Cbr>·Automatic power off with time delay\u003Cbr>· MOSFET temperature sensing and thermal protection.\u003Cbr>·Tow levels battery under voltage protection\u003Cbr>· Battery residual capacity display\u003Cbr>· PCB size small, and assemble conveniently |\n\nRevision history：  \n\n| Revise Date | Version | Reason/Issue |\n| --- | --- | --- |\n| 2019-10-25 | 00 | First Issue |\n|  |  |  |\n\nContents Index  \n1. System Electrical Specification......................................................................................................... 3  \n1.1 Input Characteristic ............................................................................................................... 3  \n1.2 System parameters............................................................................................................... 3  \n1.3 Output characteristic ............................................................................................................. 3  \n1.4 Environmental....................................................................................................................... 3  \n2. Board Information ............................................................................................................................ 4  \n2.1 Schematic............................................................................................................................. 4  \n2.2 Bill of material ....................................................................................................................... 5  \n2.3 PCB Garber File ................................................................................................................... 7  \n2.4 Heat-sink Drawing ................................................................................................................ 8  \n2.5 Connector Function Description ............................................................................................ 9  \n2.6 BLDC Controller Board Snapshot .........................................................................................10  \n3. Performance Evaluation.................................................................................................................. 11  \n3.1 Voltage Test .........................................................................................................................12  \n3.1.1 Gate Driver & MCU Supply Power ON/OFF ..............................................................12  \n3.1.2 OB6627L Under Voltage Lockout ON/OFF ................................................................12  \n3.1.3 Battery Under Voltage Lockout ..................................................................................13  \n3.2 MOSFET .............................................................................................................................13  \n3.2.1 Vgs Voltage = 12V @ BUS = 18V .............................................................................13  \n3.2.2 Vgs Rise/Fall Edge Time...........................................................................................13  \n3.2.3 Vds Strike Voltage @ Bus = 21V ...............................................................................15  \n3.3 Current Sensing...................................................................................................................15  \n3.4 Motor Control.......................................................................................................................16  \n3.4.1 Motor Run..............................................................","cbCaicIRQ1RlVVAH","https://ap.wps.com/l/cbCaicIRQ1RlVVAH","pdf",2257332,18,"English","# Contents Index\n## 1. System Electrical Specification\n### 1.1 Input Characteristic\n### 1.2 System parameters\n### 1.3 Output characteristic\n### 1.4 Environmental\n## 2. Board Information\n### 2.1 Schematic\n### 2.2 Bill of material\n### 2.3 PCB Garber File\n### 2.4 Heat-sink Drawing\n### 2.5 Connector Function Description\n### 2.6 BLDC Controller Board Snapshot\n## 3. Performance Evaluation\n### 3.1 Voltage Test\n### 3.2 MOSFET\n### 3.3 Current Sensing\n### 3.4 Motor Control\n### 3.5 Temperature Test\n### 3.6 Reliability","[{\"question\":\"What are the key features of the OB6627L demo board BLDC controller?\",\"answer\":\"The board integrates a single-chip BLDC controller with six-step hall-sensor based control, forward/reverse selection, 10% duty start, automatic power-off with time delay, battery under-voltage protections and residual capacity display, plus MOSFET temperature sensing and thermal protection.\"},{\"question\":\"What input and operating conditions does the manual specify?\",\"answer\":\"It specifies DC input voltage rating and DC input range (about 7V to 25V for the stated battery cell configuration), hall sensor working voltage (0 to 5V), and differential signal type, along with environmental operating and storage temperature and storage humidity.\"},{\"question\":\"How does the performance evaluation section test the system?\",\"answer\":\"It covers voltage tests (including gate driver \\u0026 MCU supply ON/OFF and under-voltage lockout), MOSFET electrical tests (Vgs-related conditions and Vds strike voltage), current sensing, motor run/brake and low-speed torque maintenance, temperature measurement and MOSFET temperature protection, and reliability at low and high temperatures.\"}]","OB6627L Demo Board Manual - Board Specifications and Performance Evaluation | PDF",1791808954,45]