STMicroelectronics Stepper motor driver mounting the L6474 in high power PowerSO package EVAL6474PD EVAL6474PD Ficha De Dados
Códigos do produto
EVAL6474PD
L6474
Electrical data
Doc ID 022529 Rev 3
9/52
2.2 Recommended
operating
conditions
2.3 Thermal
data
Table 3.
Recommended operating conditions
Symbol Parameter
Test
condition
Value
Unit
V
DD
Logic interface supply voltage
3.3 V logic outputs
3.3
V
5 V logic outputs
5
V
S
Motor supply voltage
V
SA
= V
SB
= V
S
8
45
V
V
out_diff
Differential voltage between
V
V
SA
, OUT1
A
, OUT2
A
, PGND
and V
SB
, OUT1
B
, OUT2
B
,
PGND pins
V
SA
= V
SB
= V
S
45
V
V
REG,in
Logic supply voltage
V
REG
voltage imposed by
external source
3.2 3.3
V
V
ADC
Integrated ADC input voltage
(ADCIN pin)
(ADCIN pin)
0 V
REG
V
Table 4.
Thermal data
Symbol
Parameter
Package
Typ.
Unit
R
thJA
Thermal resistance junction-ambient
HTSSOP28
(1)
1.
HTSSOP28 mounted on EVAL6474H Rev 1.0 board: four-layer FR4 PCB with a dissipating copper surface
of about 40 cm2 on each layer and 15 via holes below the IC.
of about 40 cm2 on each layer and 15 via holes below the IC.
22
°C/W
POWERSO36
(2)
2.
POWERSO36 mounted on EVAL6474PD Rev 1.0 board: four-layer FR4 PCB with a dissipating copper
surface of about 40 cm2 on each layer and 22 via holes below the IC.
surface of about 40 cm2 on each layer and 22 via holes below the IC.
12