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L6258EX Datasheet(PDF) 9 Page - STMicroelectronics

No. de pieza L6258EX
Descripción Electrónicos  PWM controlled high current DMOS universal motor driver
PDF  32 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6258EX Datasheet(HTML) 9 Page - STMicroelectronics

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L6258EX
Block diagram
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
μA
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
μA
Idis
Disable pin input
current
-10
+150
μA
Vref1/ref2
Reference voltage
Operating
0
2.5
V
Iref
Vref terminal input
current
Vref = 1.25
-2
5
μA
FI =
Vref/Vsense
PWM loop transfer
ratio
2
VFS
DAC full scale
precision
Vref = 2.5V I0/I1/I2/I3 = L
1.23
1.34
V
Voffset
Current loop offset
Vref = 2.5V I0/I1/I2/I3 = H
-40
+40
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
μA
ERROR AMPLIFIER
GV
Open loop voltage gain
70
dB
SR
Output slew rate
Open loop
0.2
V/
μs
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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