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L6258 データシート(PDF) 9 Page - STMicroelectronics

部品番号 L6258
部品情報  PWM controlled high current DMOS universal motor driver
PDF  32 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6258 データシート(HTML) 9 Page - STMicroelectronics

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L6258
Block diagram
9/32
ΔT
SD-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
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
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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