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PDF L6269 Data sheet ( Hoja de datos )

Número de pieza L6269
Descripción 12V DISK DRIVE SPINDLE & VCM/ POWER & CONTROL COMBO
Fabricantes STMicroelectronics 
Logotipo STMicroelectronics Logotipo



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No Preview Available ! L6269 Hoja de datos, Descripción, Manual

® L6269
12V DISK DRIVE SPINDLE & VCM, POWER
& CONTROL “COMBO”
PRODUCT PREVIEW
GENERAL
12V (+/- 10%) OPERATION.
REGISTER BASED ARCHITECTURE
MINIMUM EXTERNAL COMPONENTS
BICMOS + VERTICAL DMOS (1.5mm)
BICMOS TECHNOLOGY
VCM DRIVER
1.5A DRIVE CAPABILITY
0.9W TOTAL 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
0.8W TOTAL 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
12V AND 5V MONITORING WITH EXTERNAL
SET TRIP POINTS AND HYSTERESIS
POWER UP/DOWN SEQUENCING
TQFP44 (10x10mm)
ORDERING NUMBER: L6269
LOW VOLTAGE SENSE
3.3V INPUT LOGIC COMPATIBILITY
THERMAL SHUTDOWN AND PRETHERMAL
WARNING
DESCRIPTION
The L6269 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




L6269 pdf
ELECTRICAL CHARACTERISTICS (Continued)
Symbol
Parameter
THERMAL SENSING
TSD Shutdown Temperature
THYS
Hysteresis
TEW Early Warning
SUPPLY MONITOR
VTR Trip Point
VHYS
Hysteresis Voltage
IDLY Porb Delay Current
Ron_por Porb Pull Down Ron
VDLY
IIN
Porb Dly Threshold
Input Current
VOLTAGE BOOST
VBOOST Output Voltage
Fosc Internal Oscillator
SW1 OUTPUT
RGATE Gate Driver for External Mosfet
VGATE
Off Gate State Voltage for
External Mosfet
DIGITAL LOGIC LEVELS
VIH Input Logic ”1”
VIL Input Logic ”0”
VOH Output Logic ”1”
VOL Output Logic ”0”
FSYSCLK System Clock
VCM, DAC
Resolution
Differential Linearity
Integral Linearity
Midscale Offset
TC Convertion Time
Full Scale Voltage
Full Scale Error
VCM, ERROR AMPLIFIER
AVOL
VOS
Open Loop Gain
Input Offset Voltage
IIB Input Bias Current
Test Condition
Input Rising
Input falling
TR_5V, TR_12V > VTR
Vpordly = 2V
Vdd > 2V and sink 1mA
Vpordly = 2V
TR_5V, TR_12V > VTR
VIN < 4V
Internal Resistor to CP
IO = 1mA VCC = 3.5V
VDD = 5.5V
VDD = 4.5V
ISOURCE = 20µA
ISOURCE = -400µA
1 LSB Change
-Tested
By design
Referenced to VCC/2
Referenced to VCC/2
DC
L6269
Min. Typ. Max. Unit
150 180
60
TSD-25
°C
°C
°C
1.92 2 2.08 V
100 mV
1.5 2 2.5 µA
500
2.5 3.0 3.5
V
-1 1 µA
VCC+5
130
VCC+6.3 V
200 250 kHz
200
0.7
k
V
2.4
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
db
5 mV
250 nA
5/17

5 Page





L6269 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
L6269
11/17

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