TPIC43T01_14 Datasheet, PDF (1/28 Pages) Texas Instruments – THREE-PHASE BRUSHLESS MOTOR RPM CONTROLLERS

TPIC43T01, TPIC43T02
THREE-PHASE BRUSHLESS MOTOR RPM CONTROLLERS
D Precision Phase Lock Loop Motor – RPM
Control With Embedded DSP Filter
Algorithm for Loop Compensation
D EEPROM Registers for User Adjustment of
PLL Loop Gain and DSP Filter Coefficients
(Pole/Zero)
D Crystal Oscillator With EEPROM Adjustable
Divide-By for Versatile PLL Timebase
D Standalone Operation With No Host
Processor Needed
D RPM Lock Detection/Reporting
(±5% Window)
D Synchronous Rectification,
Enabled (TPIC43T01)
Disabled (TPIC43T02)
D Stalled Motor Timer/Shutdown
D High-Side Current Limiting
D High-Side Over-Current Shutdown
D Differential Hall Effect Position Sensor
Inputs/Decode Provide Commutation
Control
D Differential Variable Reluctance Speed
Sensor Inputs
D Gate Drive for Six External N-Channel
Power FETs in Three Half-H Configuration
D Charge Pump to Develop High-Side Gate
Drive Voltage
SLIS098 – APRIL 2000
D 5 V Regulator – Designed for 10 mA
External Current
D 8 to 28 V Supply Voltage
D Small Outline Surface-Mount Package
DA PACKAGE
(TOP VIEW)
IN2+ ₁
IN2– ₂
IN3+ ₃
IN3– ₄
FGOUT ₅
FGIN– ₆
FGIN+ ₇
CLT 8
CT 9
RT 10
OSC2 11
OSC1 12
V_DD 13
FGSOUT 14
GND 15
LD 16
FSEL 17
S/S 18
F/R 19
38 ^IN1–
37 ^IN1+
36 ^TEST
35 ^VPP
34 ^PHA
33 ^UGA
32 ^LGA
31 ^UGB
30 ^PHB
29 ^LGB
28 ^LGC
27 ^UGC
26 ^PHC
25 ^SENSE
24 CP2
23 CP1
22 V_CP
21 PGND
20 V_CC
description
The TPIC43T01/02 is a monolithic motor control integrated circuit designed to provide RPM control to a 3-phase
brushless dc motor. The device provides two analog sensor input ports which include a speed sensor interface
and a Hall effect position interface. The speed feedback interface consists of an FG amplifier to receive an
external sinusoidal signal from a variable reluctance pickup and convert it to a digital speed signal for the control
circuit. When the motor speed is outside a ± 5% window of the reference signal, an out-of-lock condition is
declared. The Hall ffect sensor input section receives low-level differential voltages from external naked Hall
elements and converts them to digital position reference signals for the control circuit for commutation control.
The core of the control circuit implements a digital signal processing algorithm consisting of a digital integrator
and filter with user adjustable parameters to optimize the closed loop performance of the control system. The
device contains an internal EEPROM to set integrator gain and digital filter coefficients. In addition, Texas
Instruments provides a PC based Windows™ compatible software package to input the motor and system
characteristics and convert them to control parameters for the TPIC43T01/02. The software generates a JEDEC
compatible file to program the device through a third party device programmer.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Windows is a trademark of Microsoft Corporation.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2000, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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