TPIC43T01, TPIC43T02
THREE-PHASE BRUSHLESS MOTOR RPM CONTROLLERS
SLIS098 – APRIL 2000
Precision Phase Lock Loop Motor – RPM
Control With Embedded DSP Filter
Algorithm for Loop Compensation
5 V Regulator – Designed for 10 mA
External Current
8 to 28 V Supply Voltage
EEPROM Registers for User Adjustment of
PLL Loop Gain and DSP Filter Coefficients
(Pole/Zero)
Small Outline Surface-Mount Package
DA PACKAGE
(TOP VIEW)
Crystal Oscillator With EEPROM Adjustable
Divide-By for Versatile PLL Timebase
IN2+
IN2–
IN1–
IN1+
TEST
Standalone Operation With No Host
Processor Needed
1
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
2
IN3+
3
RPM Lock Detection/Reporting
(±5% Window)
IN3–
V
4
PP
FGOUT
FGIN–
FGIN+
CLT
PHA
UGA
LGA
UGB
PHB
LGB
LGC
UGC
PHC
SENSE
CP2
5
Synchronous Rectification,
Enabled (TPIC43T01)
Disabled (TPIC43T02)
6
7
8
Stalled Motor Timer/Shutdown
High-Side Current Limiting
CT
9
RT
10
11
12
13
14
15
16
High-Side Over-Current Shutdown
OSC2
OSC1
Differential Hall Effect Position Sensor
Inputs/Decode Provide Commutation
Control
V
DD
FGSOUT
GND
Differential Variable Reluctance Speed
Sensor Inputs
LD
CP1
FSEL 17
S/S 18
F/R 19
V
CP
Gate Drive for Six External N-Channel
Power FETs in Three Half-H Configuration
PGND
V
CC
Charge Pump to Develop High-Side Gate
Drive Voltage
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
characteristicsandconvertthemtocontrolparametersfortheTPIC43T01/02. ThesoftwaregeneratesaJEDEC
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.
Copyright 2000, Texas Instruments Incorporated
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.
1
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