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UCC3626DWTI/BBN/a200avaiBrushless DC Motor Controller
UCC3626PWUNITRODEN/a660avaiBrushless DC Motor Controller


UCC3626PW ,Brushless DC Motor Controllermaximum ratings over operating free-air temperature (unless otherwise noted)Supply voltage V . . . ..
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UCC37321DGN ,Single 9-A High Speed Low-Side MOSFET Driver With EnableFeatures 2 Applications1• Industry-Standard Pin-Out With Addition of Enable • Switch Mode Power Sup ..
UCC37321DR ,Single 9-A High Speed Low-Side MOSFET Driver With Enable SLUS504H–SEPTEMBER 2002–REVISED JANUARY 20165 Description (continued)Using a design that inherentl ..
UCC37321P ,Single 9-A High Speed Low-Side MOSFET Driver With EnableBlock Diagram... 12Information..... 228.3 Feature Description.... 124 Revision HistoryNOTE: Page nu ..
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UPA2710GR ,SWITCHING P-CHANNEL POWER MOSFETFEATURES• Low on-state resistanceRDS(on)1 = 5.5 mΩ MAX. (VGS = –10 V, ID = –7.5 A)6.0 ±0.3RDS(on)2 ..
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UPA2712GR ,SWITCHING P-CHANNEL POWER MOSFETFEATURES• Low on-state resistanceRDS(on)1 = 13 mΩ MAX. (VGS = −10 V, ID = −5.0 A)RDS(on)2 = 21 mΩ M ..
UPA2714GR ,SWITCHING P-CHANNEL POWER MOSFETFEATURES• Low on-state resistanceRDS(on)1 = 20 mΩ MAX. (VGS = −10 V, ID = −3.5 A)RDS(on)2 = 30 mΩ M ..
UPA2716GR ,SWITCHING P-CHANNEL POWER MOSFETapplications of notebook 851, 2, 3 : Sourcecomputers and Li-ion battery protection circuit. 4 : Gat ..
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UCC3626DW-UCC3626PW
Brushless DC Motor Controller
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SLUS318B – APRIL 1999 – REVISED JANUARY 2002
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FEATURES
Two-Quadrant and Four-Quadrant Operation Integrated Absolute Value Current Amplifier Pulse-by-Pulse and Average Current Sensing Accurate, Variable Duty-Cycle Tachometer
Output
Trimmed Precision Reference Precision Oscillator Direction Output

DESCRIPTION

The UCC3626 motor controller device combines
many of the functions required to design a
high-performance, two- or four-quadrant, three-
phase, brushless dc motor controller into one
package. Rotor position inputs are decoded to
provide six outputs that control an external power
stage. A precision triangle oscillator and latched
comparator provide PWM motor control in either
voltage- or current-mode configurations. The
oscillator is easily synchronized to an external
master clock source via the SYNCH input.
Additionally, a QUAD select input configures the
chip to modulate either the low-side switches only,
or both upper and lower switches, allowing the
user to minimize switching losses in less
demanding two-quadrant applications.
The device includes a differential current-sense
amplifier and absolute-value circuit which provide
an accurate reconstruction of motor current,
useful for pulse-by-pulse overcurrent protection,
as well as closing a current control loop. A
precision tachometer is also provided for
implementing closed-loop speed control. The
TACH_OUT signal is a variable duty-cycle,
frequency output, which can be used directly for
digital control or filtered to provide an analog
feedback signal. Other features include COAST,
BRAKE, and DIR_IN commands, along with a
direction output, DIR_OUT.
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