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L6474H Folha de dados(PDF) 9 Page - STMicroelectronics

Nome de Peças L6474H
Descrição Electrónicos  easySPIN ??fully integrated microstepping motor driver
Download  51 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
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L6474H Folha de dados(HTML) 9 Page - STMicroelectronics

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L6474
Electrical characteristics
Doc ID 022529 Rev 2
9/51
3
Electrical characteristics
VSA = VSB = 36 V; VDD = 3.3 V; internal 3 V regulator; TJ = 25 °C, unless otherwise
specified.
Table 5.
Electrical characteristics
Symbol
Parameter
Test condition
Min.
Typ.
Max. Unit
General
VSthOn
VS UVLO turn-on threshold
7.5
8.2
8.9
V
VSthOff
VS UVLO turn-off threshold
6.6
7.2
7.8
V
VSthHyst
VS UVLO threshold hysteresis
0.7
1
1.3
V
Iq
Quiescent motor supply current
Internal oscillator selected;
VREG = 3.3 V ext; CP
floating
0.5
0.65
mA
Tj(WRN)
Thermal warning temperature
130
°C
Tj(SD)
Thermal shutdown temperature
160
°C
Charge pump
Vpump
Voltage swing for charge pump oscillator
10
V
fpump,min
Minimum charge pump oscillator frequency
(1)
660
kHz
fpump,max
Maximum charge pump oscillator frequency
(1)
800
kHz
Iboot
Average boot current
fsw,A = fsw,B = 15.6 kHz
POW_SR = ‘10’
1.1
1.4
mA
Output DMOS transistor
RDS(on)
High side switch ON resistance
Tj = 25 °C, Iout = 3A
0.37
Tj = 125 °C,
(2) I
out = 3A
0.51
Low side switch ON resistance
Tj = 25 °C, Iout = 3A
0.18
Tj = 125 °C,
(2) I
out = 3A
0.23
IDSS
Leakage current
OUT = VS
3.1
mA
OUT = GND
-0.3
tr
Rise time (3)
POW_SR = '00', Iout = +1A
100
ns
POW_SR = '00', Iout = -1A
80
POW_SR = ‘11’, Iout = ±1A
100
POW_SR = ‘10’, Iout = ±1A
200
POW_SR = ‘01’, Iout = ±1A
300


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