BLDC Motor Commutator/Controller
(20 Pins)

LS7362C-S, LS7362C-TS, LS7362C

Category: Brushless DC Motor Controls

Status: In Production

Stock Availability: SOIC

All of our Standard Products are RoHS Compliant

For pricing and availability you may contact us, or request a quote. Most of our standard parts are available for purchase on Digi-Key, and through our Distributors.

Features:

• Speed control by Pulse Width Modulating (PWM) onlythe low-side drivers reduces switching losses in level converter circuitry for high voltage motors
• Open or closed loop motor speed control
• +5V to +28V operation (VSS–VDD)
• Externally selectable input to output code for 60°, 120°, 240°, or 300°electrical sensor spacing
• Three or four phase operation
• Analog speed control
• Forward/Reverse control
• Output enable control
• Positive static braking
• Over-current sensing
• Six outputs drive switching bridge directly

Description:

The LS7362C is a MOS integrated circuit designed to generate the signals necessary to control a three phase or four phase brushless DC motor. It is the basic building block of a brushless DC motor controller. The circuits respond to changes at the SENSE inputs, originating at the motor position sensors, to provide electronic commutation of the motor windings. Pulse width modulation(PWM) of low-side drivers for motor speed control is accomplished through the VTRIP input (Analog speed control) in conjunction with the OSCILLATOR input. Over-current circuitry is provided to protect the windings, associated drivers, and power supply. The LS7362C circuitry causes the external output drivers to switch off immediately upon sensing the over-current condition, and on again only when the over-current condition disappears and the positive edge of the saw-tooth OSCILLATOR occurs. This limits the over-current sense cycling to the chopping rate of the saw-tooth OSCILLATOR. A positive braking feature is provided to effect rapid deceleration. The LS7362C is designed for driving Bipolar and Field Effect Transistors. Because only low-side drivers are pulse-width modulated, the LS7362C is ideally suited in situations where the integrated circuit interfaces with level converters to drive high voltage brushless DC motors. By pulse width modulating the low-side drivers only, the switch losses in the level conversion circuitry for the high-side drivers is minimized.

Ordering Info

Code
Package
Notes

P/N

RoHS Compliant Standard plastic DIP

1, 2, 3

P/N – S

RoHS Compliant Standard SOIC

1, 2, 3, 4

P/N – SW

RoHS Compliant Widebody SOIC option

1, 2, 3, 4

P/N – S14

RoHS Compliant 14-pin SOIC version of 8-pin part

1, 2, 3, 4

P/N – TS

RoHS Compliant TSSOP

1, 2, 3, 4

P/N – TS24

RoHS Compliant 24-pin TSSOP version of 20-pin part

1, 2, 3, 4

Example: LSxxxx-TS = the LSxxxx in the RoHS Compliant TSSOP package-type

Note 1: See Table for package body widths

Note 2: Package outline drawings conform to JEDEC standards

Note 3: Packages shipped in anti-static tubes

Note 4: Tape and Reel option available. Contact factory for details

ADDITIONAL ORDERING OPTIONS:

Probed Wafers (P/N-PW), Waffle Packed Die (P/N-WP)

Package Body Widths
# of Pins
P/N, -C, -CM
mils
-S
mils
-SW
mils
-TS
mils

8

300

150

14

300

150

173

16

300

150

300

173

18

300

300

20

300

300

173

24

600

300

173

28

600

300

173

38

173

40

600

48

240

LSI/CSI