参数资料
型号: L6258
厂商: STMICROELECTRONICS
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, 1.5 A, PDSO36
封装: ROHS COMPLIANT, SOP-36
文件页数: 32/32页
文件大小: 364K
代理商: L6258
L6258
Block diagram
Doc ID 4588 Rev 10
9/32
ΔTSD-H
Shut down hysteresis
25
°C
TSD
Thermal shutdown
150
°C
fosc
Triangular oscillator
frequency(1)
CFREF = 1nF
12.5
15
18.5
KHz
TRANSISTORS
IDSS
Leakage current
OFF State
500
A
Rds(on)
On resistance
ON state
0.6
0.75
W
Vf
Flywheel diode voltage
If =1.0A
1
1.4
V
CONTROL LOGIC
Vin(H)
lnput voltage
All Inputs
2
VDD
V
Vin(L)
Input voltage
All inputs
0
0.8
V
Iin
Input current (2)
0 < Vin < 5V
-150
+10
A
Idis
Disable pin input current
-10
+150
A
Vref1/ref2
Reference voltage
Operating
0
2.5
V
Iref
Vref terminal input current Vref = 1.25
-2
5
A
FI =
Vref/Vsense
PWM loop transfer ratio
1.94
VFS
DAC full scale precision
Vref = 2.5V I0/I1/I2/I3 = L
1.23
1.29
1.34
V
Voffset
Current loop offset
Vref = 2.5V I0/I1/I2/I3 = H
-30
+30
mV
DAC factor ratio
Normalized @ full scale
value
-2
+2
%
SENSE AMPLIFIER
Vcm
lnput common mode
voltage range
-0.7
VS+0.7
V
Iinp
Input bias
sense1/sense2
-200
0
A
ERROR AMPLIFIER
GV
Open loop voltage gain
70
dB
SR
Output slew rate
Open loop
0.2
V/s
GBW
Gain bandwidth product
400
kHz
1.
Chopping frequency is twice fosc value.
2.
This is true for all the logic inputs except the disable input.
Table 4.
Electrical characteristics (continued)
(VS = 40V; VDD = 5V; Tj = 25°; unless otherwise specified.)
Parameter
Description
Test condition
Min.
Typ.
Max.
Unit
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