參數(shù)資料
型號： TMC239-SA
廠商： Electronic Theatre Controls, Inc.
英文描述： High Current Microstep Stepper Motor Driver with protection / diagnosis and SPI Interface
中文描述： 大電流微步驅(qū)動器，步進電機保護/診斷和SPI接口
文件頁數(shù)： 19/21頁
文件大小： 170K
代理商： TMC239-SA
TMC239 DATA SHEET (V1.00 / Apr. 24th, 2003)
19
Copyright 2002, TRINAMIC Microchips GmbH
-I
ISL
Low input current
(all digital inputs)
V
I
= 0
V
CC
= 3.3V
V
CC
= 5.0V
2
10
25
70
μA
μA
μA
-I
IEL
Low input current
(input ENN)
V
I
= 0
V
CC
= 3.3V
V
CC
= 5.0V
10
20
30
50
μA
μA
μA
V
OSCH
High input voltage threshold
(input OSC)
tbd
2/3 VCC
tbd
V
V
OSCL
Low input voltage threshold
(input OSC)
tbd
1/3 VCC
tbd
V
V
VTD
VT threshold voltage
(referenced to VS)
-130
-155
-180
mV
V
SRT
SRA / SRB 100% setting
threshold using internal
reference or 2V at INA / INB
311
345
380
mV
V
SRS
SRA / SRB overcurrent detection
threshold
570
615
660
mV
V
SROFFS
SRA / SRB comparator offset
voltage
-6
0
6
mV
R
INAB
INA / INB input resistance
Vin
≤
3 V
200
264
300
k
AC Characteristics
AC characteristics contain the spread of values guaranteed within the specified supply voltage and
temperature range unless otherwise specified. Typical characteristics represent the average value of
all parts.
Logic supply voltage:
V
CC
= 3.3V,
Bridge supply voltage: V
S
= 14.0V,
Ambient temperature: T
A
= 27°C,
External MOSFET gate capacity = 3.2nC
Symbol Parameter
Conditions
Min
Typ
Max
Unit
f
OSC
Oscillator frequency
using internal oscillator
C
OSC
= 1nF
±
1%
20
25
31
kHz
T
BL
Blank time
BL1, BL2 = V
CC
1.35
1.5
1.65
μs
T
ONMIN
Minimum PWM on-time
BL1,BL2 =
GND
0.7
μs
Thermal Protection
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
T
JOT
Thermal shutdown
143
150
160
°C
T
JOTHYS
T
JOT
hysteresis
10
°C
T
JWT
Prewarning temperature
133
141
151
°C
T
JWTHYS
T
JWT
hysteresis
19
°C
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