DatasheetsPDF.com

TB6575FNG Dataheets PDF



Part Number TB6575FNG
Manufacturers Toshiba Semiconductor
Logo Toshiba Semiconductor
Description PWM Sensorless Controller
Datasheet TB6575FNG DatasheetTB6575FNG Datasheet (PDF)

TOSHIBA CMOS Integrated Circuit Silicon Monolithic TB6575FNG PWM Sensorless Controller for 3-Phase Full-Wave BLDC Motors TB6575FNG The TB6575FNG provides sensorless commutation and PWM current control for 3-phase full-wave BLDC motors. It controls rotation speed by changing a PWM duty cycle by analog voltage. Features • 3-phase full-wave sensorless drive • PWM chopper drive • PWM duty cycle control by analog input • 20-mA current sink capability on PWM output pins • Overcurrent protection.

  TB6575FNG   TB6575FNG


Document
TOSHIBA CMOS Integrated Circuit Silicon Monolithic TB6575FNG PWM Sensorless Controller for 3-Phase Full-Wave BLDC Motors TB6575FNG The TB6575FNG provides sensorless commutation and PWM current control for 3-phase full-wave BLDC motors. It controls rotation speed by changing a PWM duty cycle by analog voltage. Features • 3-phase full-wave sensorless drive • PWM chopper drive • PWM duty cycle control by analog input • 20-mA current sink capability on PWM output pins • Overcurrent protection Weight: 0.14 g (typ.) • Forward/reverse rotation • Lead angle control (7.5° and 15°) • Overlap commutation • Rotation speed sensing signal • DC excitation mode to improve startup characteristic • DC excitation time and forced commutation time for startup operation can be changed. • Forced commutation frequency can be selected. (fXT/(6 × 216), fXT/(6 × 217), fXT/(6 × 218) ) • Output polarity switching (P-channel + N-channel, N-channel + N-channel) TB6575FNG is a Pb-free product. The following conditions apply to solderability: *Solderability 1. Use of Sn-37Pb solder bath *solder bath temperature = 230ºC *dipping time = 5 seconds *number of times = once *use of R-type flux 2. Use of Sn-3.0Ag-0.5Cu solder bath *solder bath temperature = 245ºC *dipping time = 5 seconds *number of times = once *use of R-type flux 1 2008-9-11 Block Diagram Duty 19 VSP 5 Startup time setting 6-bit AD converter PWM control SC 2 START 8 IP 9 FST 24 FMAX 4 LA 12 CW_CCW 6 DC excitation control circuit Forced commutation frequency setting Maximum commutation frequency setting Lead angle setting SEL_LAP 20 Clock generation 10 11 XTout XTin Pin Assignment TB6575FNG VDD OS FG_OUT 21 3 7 PWM generator Timing control 13 OUT_UP 15 OUT_VP 17 OUT_WP 14 OUT_UN 16 OUT_VN 18 OUT_WN Overcurrent protection 22 OC 1 GND Position recognition 23 WAVE GND 1 SC 2 OS 3 FMAX 4 VSP 5 CW_CCW 6 FG_OUT 7 START 8 IP 9 XTout 10 XTin 11 LA 12 24 FST 23 WAVE 22 OC 21 VDD 20 SEL_LAP 19 Duty 18 OUT_WN 17 OUT_WP 16 OUT_VN 15 OUT_VP 14 OUT_UN 13 OUT_UP 2 2008-9-11 Pin Description Pin No. 1 2 Symbol GND SC 3 OS 4 FMAX 5 VSP 6 CW_CCW 7 FG_OUT 8 START 9 IP 10 XTout 11 XTin 12 LA 13 OUT_UP 14 OUT_UN 15 OUT_VP 16 OUT_VN 17 OUT_WP 18 OUT_WN 19 Duty 20 SEL_LAP TB6575FNG I/O Description ⎯ Ground pin I Connection pin for a capacitor to set a startup commutation time and duty cycle ramp-up time Select the polarity of transistors. High or open: High-side transistor = P-channel (active low) I Low: Low-side transistor = N-channel (active High) High-side transistor = N-channel (active High) Low-side transistor = N-channel (active High) The pin has a pull-up resistor. Set an upper limit of the maximum commutation frequency. FMAX =High or Open , Maximum commutation frequency fMX = fXT/ (6×211) I FMAX =Low , Maximum commutation frequency fMX = fXT/(6 × 212) FMAX =High or Open , Maximum commutation frequency fMX = fXT/ (6×28) FMAX =Low , Maximum commutation frequency fMX = fXT/(6 × 29) The pin has a pull-up resistor. Duty cycle control input 0 ≤ VSP ≤ VAD (L): Output off I VAD (L) ≤ VSP ≤ VAD (H): Set the PWM duty cycle according to the analog input. VAD (H) ≤ VSP ≤ VDD: Duty cycle = 100% (31/32) The pin has a pull-down resistor. Rotation direction input I High: Reverse rotation (U → W → V) Low or open: Forward rotation (U → V → W) The pin has a pull-down resistor. Rotation speed sensing output O The pin is low at startup or upon a detection of a fault. This pin drives three pulses per rotation (3 ppr) based on the back-EMF (electromotive force) sensing. (In the case of 4 pole motor, 6 pulse output per rotation.) O DC excitation time setting pins When VSP ≥ 1 V (typ.), the START pin goes low to start DC excitation. I After the IP pin reaches VDD/2, the TB6575FNG moves from DC excitation to forced commutation mode. ⎯ Connection pins for a ceramic oscillator ⎯ These pins have a feedback resistor. Lead angle control input I LA = Low or open: Lead angle of 7.5° LA = high: Lead angle of 15° The pin has a pull-down resistor. O PWM output signal for the high-side (positive-side) transistor driving motor phase U The PWM polarity can be specified by pin 3. O PWM output signal for the low-side (negative-side) transistor driving motor phase U This signal is active high. O PWM output signal for the high-side (positive-side) transistor driving motor phase V The PWM polarity can be specified by pin 3. O PWM output signal for the low-side (negative-side) transistor driving motor phase V This signal is active high. O PWM output signal for the high-side (positive-side) transistor driving motor phase W The PWM polarity can be specified by pin 3. O PWM output signal for the low-side (negative-side) transistor driving motor phase W This signal is active high. PWM output monito.


U2044B TB6575FNG 18NQ11T


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)