Doc No. TA4-EA-06256 Revision. 1 Product Standards AN44150A Realizing in One IC, PWM Output Open Control by External PWM Signal and PWM Output Loop Control by External DC Voltage and Current Peak Detection. 3-Phase Brushless Motor Drive IC Features Applications Supply voltage range: 6.0 V to 36 V Driver IC for 3-phase brushless motor Built-in 5-V regulator 3-phase 120-deg--energization drive system by 3-Hall-sensor Drive control mode is selectable: PWM open control by an external PWM signal Package (PWM through drive) 24-pin plastic quad flat non-lead package PWM loop control by external DC voltage and current peak (QFN type, size: 4 mm 4 mm) detection. (OFF time fixed current peak detection PWM drive) OFF time setting switching function Rotation direction switching function FG pulse switching function (1FG or 3FG) Short-brake/Free-running function Built in various protection functions: under voltage lock out (UVLO), thermal protection, motor restricted protection , overcurrent protection and drive output short protection Summary AN44150A is a driver IC for 3-phase brushless motor. The rotor position detection by a 3-Hall-sensor and a 120-deg--energization drive system are adopted. It is selectable the PWM through drive mode or the OFF time fixed current peak detection PWM drive mode. Low power consumption of a motor module is realized, and it contributes to the application expansion of various motor units. Application Circuit Example Motor Drive Waveform C AN44150A U,V,W,FG output voltage waveform VPUMP V,I U,V,W output current waveform FG (10V/div) VU 19 12 (50V/div) BR INSEL R FG C C VCC1 VCC 20 11 VV FG VCC (50V/div) 21 10 C FR BC1 CLDOSC VW 22 9 C BC CLDOSC BC2 C VREG (50V/div) 23 8 PWMIN/VSP VREG IU 24 7 OFFSW GND (1A/div) IV (1A/div) R ( )( )( ) VH1 VCC IW ( ) C C C HW HV HU (1A/div) 2ms/div time s Note: In the above circuit example, Its not that the operation of Conditions: PWMIN mode, PWMIN=20kHz, 50%duty the volume production is guaranteed. When designing a mass V = 24 V, V = H, FGSEL=L CC FR production set, after having conducted an evaluation and verification enough, use it with the customer s responsibility. Page 1 of 40 Established : 2014-05-14 Revised : - - HWN FGSEL 1 18 HWP R RCS RCS 2 17 HVN V 3 16 HVP W 4 15 HUN U 5 14 HUP VPUMP 6 13 VREGDoc No. TA4-EA-06256 Revision. 1 Product Standards AN44150A Table of Contents Feature 1 Summary 1 Applications 1 Package 1 Application Circuit Example 1 Motor Drive Waveform 1 Table of Contents 2 Absolute Maximum Rating 3 Rated Power Consumption 3 Recommended Operating Conditions 4 Electrical Characteristics 5 Pin Configuration 8 Pin Functions 8 Block Diagram 9 Application Circuit Diagram 10 Function Pin Table 11 Protection Function 12 3 Phase Drive State Diagram 13 Functional Explanation 14 PIN EQUIVALENT CIRCUIT 24 Safe Operating Area 30 Package Information 31 IMPORTANT NOTICE 34 Usage Notes 36 Page 2 of 40 Established : 2014-05-14 Revised : - -