DataSheet.es    


PDF L6275 Data sheet ( Hoja de datos )

Número de pieza L6275
Descripción 5V DISK DRIVE SPINDLE & VCM/ POWER & CONTROL COMBO
Fabricantes STMicroelectronics 
Logotipo STMicroelectronics Logotipo



Hay una vista previa y un enlace de descarga de L6275 (archivo pdf) en la parte inferior de esta página.


Total 17 Páginas

No Preview Available ! L6275 Hoja de datos, Descripción, Manual

® L6275
5V DISK DRIVE SPINDLE & VCM, POWER
& CONTROL “COMBO”
PRODUCT PREVIEW
GENERAL
5V (+/- 10%) OPERATION.
REGISTER BASED ARCHITECTURE
MINIMUM EXTERNAL COMPONENTS
BICMOS + VERTICAL DMOS (1.5mm)
BICMOS TECHNOLOGY
VCM DRIVER
1.5A DRIVE CAPABILITY
0.9TOTAL BRIDGE IMPEDANCE AT 25°C
LINEAR MODE
PHASE SHIFT MODULATION (PWM MODE)
INSTANTANEOUS, (GLICH FREE) SWITCH
BETWEEN THE 2 MODES
CLASS AB OUTPUT DRIVERS
ZERO CROSSOVER DISTORSION
14 BIT DAC DEFINE OUTPUT CURRENT
SELECTABLE TRANSCONDUCTANCE
4 PROGRAMMABLE PARKING VOLTAGE
DYNAMIC BRAKE
SPINDLE DRIVER
2.0A DRIVE CAPABILITY
0.8TOTAL BRIDGE IMPEDANCE AT 25°C
BEMF, INTERNAL OR EXTERNAL, PROC-
ESSING
SENSOR-LESS MOTOR COMMUTATION
PROGRAMMABLE COMMUTATION PHASE
DELAY
LINEAR MODE AND CONSTANT TOFF PWM
OPERATION MODE
INTERNAL FREQUENCY LOCKED LOOP
SPEED CONTROL (FLL)
BEMF RECTIFICATION DURING RETRACT
BUILT-IN ALIGNAMENT&GO START-UP
INDUCTIVE SENSING START UP OPTION
RESYNCHRONIZATION
DYNAMIC & REVERSE BRAKE
CONTROLLABLE OUTPUT SLEW RATE
OTHER FUNCTIONS
5V MONITORING WITH EXTERNAL SET
TRIP POINTS AND HYSTERESIS
POWER UP/DOWN SEQUENCING
LOW VOLTAGE SENSE
TQFP44 (10x10mm)
ORDERING NUMBER: L6275
3.3V INPUT LOGIC COMPATIBILITY
THERMAL SHUTDOWN AND PRETHERMAL
WARNING
SYSTEM CLOCK WATCHDOG
DESCRIPTION
The L6275 integrates into a single chip both spin-
dle and VCM controllers as well as power stages.
The device is designed for 12V disk drive applica-
tion requiring up to 2.0A of spindle and 1.5A of
VCM peak currents.
A serial port with up to 25 MHz capability provides
easy interface to the microprocessor. A register
controlled Frequency Locked Loop (FLL) allows
flexibility in setting the spindle speed. Integrated
BEMF processing, digital masking, digital delay,
and sequencing minimize the number of external
components required.
Power On Reset (POR) circuitry is included. Upon
detection of a low voltage condition, POR is as-
serted, the internal registers are reset, and spin-
dle power circuitry is tri-stated. The BEMF is recti-
fied providing power for actuator retraction
followed by dynamic spindle braking.
The device is built in BICMOS technology allow-
ing dense digital/analog circuitry to be combined
with a high power DMOS output stage.
April 1999
This is preliminary information on a new product now in development. Details are subject to change without notice.
1/17

1 page




L6275 pdf
ELECTRICAL CHARACTERISTICS (Continued)
Symbol
Parameter
SUPPLY MONITOR
VTR Trip Point
VHYS
Hysteresis Voltage
IDLY Porb Delay Current
Ron_por Porb Pull Down Ron
VDLY
Porb Dly Threshold
IIN Input Current
VOLTAGE BOOST
VBOOST
Fosc
Output Voltage
Internal Oscillator
SYSTEM CLOCK WATCHDOG
Min_Clk Min. System Clock Time
SW1 OUTPUT
RGATE
VGATE
Gate Driver for External Mosfet
Off Gate State Voltage for
External Mosfet
DIGITAL LOGIC LEVELS
VIH
VIL
VOH
VOL
F SYSCLK
Input Logic ”1”
Input Logic ”0”
Output Logic ”1”
Output Logic ”0”
System Clock
VCM, DAC
Resolution
Differential Linearity
Integral Linearity
Midscale Offset
TC Convertion Time
Full Scale Voltage
Full Scale Error
VCM, ERROR AMPLIFIER
AVOL
Open Loop Gain
VOS Input Offset Voltage
IIB Input Bias Current
VICM
Input Common Mode Range
Test Condition
Input Rising
Input falling
TR_5V, TR_12V > VTR
Vpordly = 2V
Vdd > 2V and sink 1mA
Vpordly = 2V
TR_5V > VTR
VIN < 4V
Internal Resistor to CP
IO = 1mA Vdd = 3.5V
ISOURCE = 20µA
ISOURCE = -400µA
1 LSB Change
- Tested
- By design
Referenced to VCC/2
Referenced to VCC/2
DC
L6275
Min. Typ. Max. Unit
1.92 2 2.08 V
100 mV
1.5 2 2.5 µA
500
2.0 V
-1 1 µA
Vdd+5
130
Vdd+6.3 V
200 250 kHz
7 10 13 µs
200
0.7
k
V
2.5
Vdd-0.2
20
V
0.5 V
V
0.4 V
25 MHz
14 Bits
-1
-0.5
9
-5
±1
-4
1 LSB
0.5
Bits
5 mV
5 µs
V
4%
50
-5
--250
VCC/2-
0.5
5
250
VCC/2+
0.5
db
mV
nA
V
5/17

5 Page





L6275 arduino
INTERNAL REGISTER DEFINITION
Reg:
Name:
Type:
Address:
5
FLL Coarse/Fine Counter Register
Write only
5Eh
BIT
0
1
2
3
4
5
6
7
F8
F9
F10
C0
C1
C2
C3
LABEL
DESCRIPTION
Bit 8 of Spindle FLL Fine Counter
Bit 9 of Spindle FLL Fine Counter
MSB of Spindle FLL Fine Counter
Unused. Set = 0
LSB of Spindle FLL Coarse Counter
Bit 1 of Spindle FLL Coarse Counter
Bit 2 of Spindle FLL Coarse Counter
Bit 3 of Spindle FLL Coarse Counter
Reg:
Name:
Type:
Address:
6
FLL Fine Counter Register
Write only
6Eh
BIT
0
1
2
3
4
5
6
7
F0
F1
F2
F3
F4
F5
F6
F7
LABEL
DESCRIPTION
LSB of Spindle FLL Fine Counter
Bit 1 of Spindle FLL Fine Counter
Bit 2 of Spindle FLL Fine Counter
Bit 3 of Spindle FLL Fine Counter
Bit 4 of Spindle FLL Fine Counter
Bit 5 of Spindle FLL Fine Counter
Bit 6 of Spindle FLL Fine Counter
Bit 7 of Spindle FLL Fine Counter
L6275
11/17

11 Page







PáginasTotal 17 Páginas
PDF Descargar[ Datasheet L6275.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
L6270MILLI-ACTUATOR DRIVERSTMicroelectronics
STMicroelectronics
L6271MILLI-ACTUATOR DRIVERSTMicroelectronics
STMicroelectronics
L62755V DISK DRIVE SPINDLE & VCM/ POWER & CONTROL COMBOSTMicroelectronics
STMicroelectronics

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar