PT2501 PTC | Alldatasheet
Document overview
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Technical content
3-Phase Sinusoidal BLDC Motor Controller Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
DESCRIPTION
The PT2501 is a three-phase, hall sensor sinusoidal brushless DC motor control chip. The three-phase control is based on sine wave driving scheme and it is designed to reduce electrical audible noise in motor phase commutation. On-chip +5V LDO provide voltage for logic and analog circuits operation. Combined with an external high voltage gate driver and six n-channel MOSFETs, PT2501 can operate with high voltage motor to 400V. For 12V to 24V operation, the built-in 60mA gate driving can connect to external high side PMOS and low side NMOS easily. The PT2501 offers external and internal OTP parameters setting to optimize with different motors and applications. PT2501 with package in SSOP28 and LQFP32.
FEATURES
Hall sensor sinusoidal control for 3-phase BLDC Current limit function Over temperature protection from external NTC Motor lock protection Reverse function. PWM or DC input for speed control FG output for rotation speed Pre-driver for 12V to 24V high side PMOS and low side NMOS. Support Hall element and Hall sensor I2C interface for parameter setting and write to internal OTP.
APPLICATIONS
Three-phase BLDC motor Fan application BLOCK DIAGRAM GND OSCC IN1+ FG VSPVDD UH WL WH VL VH UL VREG IN1- HB SWO2SWO1 SWEN IN2+ IN2- IN3+ IN3- GND OCPOTPSwing PWM GENOSC+5V LDO Rotor Position Controller SCL SDA RFRSEN VPP Hall Detector
PRE 1.3 2 Oct 2016 APPLICATION BLOCK DIAGRAM PTC PT2501 8RF 14UH 9WL 10VL 11UL 12WH 13VH
22 IN1+
23 IN1-
28 GND
27 IN3-
26 IN3+
25 IN2-
24 IN2+
7 SWEN
6 OSCC
5 VPP
4 SDA
3 SCL
1 DCPWM
N N SS Power Supply Control&Command H H H PIN ASSIGNMENT PT2501 SSOP28 SWEN OSCC VPP SDA SCL FG VSP UH VH WH UL VL WL RF PT2501 LQFP32 7x7 IN1+ FWR RSEN HB RD RSEN2 UL VL WL RF SWEN OSCC VPP GND IN2+ IN1- VDD SWO2 GND SWO1 UH VH WH VREG FG IN2- IN3+ IN3- GND VSP SDA SCL
PRE 1.3 3 Oct 2016 PIN DESCRIPTION Pin Name I/O/P Description Pin No. SSOP28 Pin No. LQFP32 VSP I DC or PWM input for speed control 1 29 FG O Motor rotation speed indicator, logic level output 2 30 SCL I Serial clock input - I2C control interface 3 31 SDA I/O Serial data input/output – I2C control interface 4 32 VPP P a. Apply +7.5v for OTP programming b. Internal diode pickup to VREG for OTP reading 5 1 OSCC I Connect to external capacitor for startup step setting 6 2 SWEN I Swing head enable control; “1”= start motor 7 3 RF I Current limit voltage sensing 8 4 WL O W phase low side signal output 9 5 VL O V phase low side signal output 10 6 UL O U phase low side signal output 11 7 GND P Signal ground n.a. 8 WH O W phase high side signal output(open drain) 12 9 VH O V phase high side signal output(open drain) 13 10 UH O U phase high side signal output(open drain) 14 11 SWO1 I/O Swing motor control – full-bridge output 1 15 12 SWO2 I/O Swing motor control – full-bridge output 2 16 14 GND P Signal ground 17 13 VDD P VDD supply input 18 15 VREG O +5V LDO output 19 16 FWR I Forward/Reverse Control – internal pull-high as forward n.a. 17 RSEN O Over-Voltage/Over-Temperature sensing resistor connection 20 18 HB O Controlled +5V output for Hall sensor bias 21 19 RD O Motor lock indicator, HIGH for abnormal event. n.a. 20 RSEN2 I Over-Temperature sensing resistor connection n.a. 21 IN1+ I Hall element 1 input+ 22 22 IN1- I Hall element 1 input- 23 23 IN2+ I Hall element 2 input+ 24 24 IN2- I Hall element 2 input- 25 25 IN3+ I Hall element 3 input+ 26 26 IN3- I Hall element 3 input- 27 27 GND P Signal ground 28 28
PRE 1.3 24 Oct 2016 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian Dist., New Taipei City 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw