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L6238 Datasheet(PDF) 5 Page - STMicroelectronics

Part # L6238
Description  SENSORLESS SPINDLE MOTOR CONTROLLER
PDF  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6238 Datasheet(HTML) 5 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (Continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
LOGIC SECTION
VinH
VinL
Input Voltage
TBD
TBD
V
V
IinH
IinL
Input Current
–1
1
µA
mA
VoutL
VoutH
Output Voltage
Vsink = 2mA
Vsource = 2mA
4.5
0.5
V
V
Fsys
System Clock Frequency
8
12
MHz
ton
Clock ON Time
20
ns
toff
Clock OFF Time
20
ns
SEQUENCE INCREMENT
tseq
Time Between Rising Edges
1
µs
SERIAL PORT TIMING Note: Cload(data I/O) = 50pF;
Fshift
Clock Frequency
2
TBD
MHz
tos
Operating Set-up Time
50
ns
tsettle
Enabling Settling Time
50
ns
tstrobe
Strobe Pulse Width
40
ns
twait
Disable Wait Time
40
ns
tds
Data Setup Time
100
ns
tdh
Data Hold Time
10
ns
tsd
Strobe to Data Prop. Delay
(*)
100
ns
tcd
Clock to Data Prop. Delay
(*)
100
ns
tsd
Data I/O Activation Delay
(*)
100
ns
ttsd
Data I/O Tri State Delay
80
ns
twrs
Write to Read Set-up Time
50
ns
tscr
Strobe to Clock Time
(Read Mode)
50
ns
tcsw
Clock to Strobe Time
(Write Mode)
50
ns
PHASE LOCK LOOP SECTION
Tphse
Static Phase Error
20
µs
BRAKE DELAY SECTION
Vchrg
Capacitor Charge Voltage
RT = 50K
TBD
9.5
TBD
V
Iout3
Source Current
0.5
mA
VThres
Delay Timer Low Trip Threshold
TBD
1.8
TBD
V
CHARGE PUMP
Vout9
Storage Capacitor Output
Voltage
20
V
Vleak
Blocking Diode Leakage Current
10
µA
Fcp
Charge Pump Frequency
300
KHz
(*) These parameters are a function of Cload.
L6238
5/35



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