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參數(shù)資料
| 型號(hào)： | L6239 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 12V Disk Drive Spindle Driver(12V磁盤驅(qū)動(dòng)主軸驅(qū)動(dòng)器) |
| 中文描述： | 12V的磁盤驅(qū)動(dòng)器主軸驅(qū)動(dòng)器（12V的磁盤驅(qū)動(dòng)主軸驅(qū)動(dòng)器） |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大小： | 149K |
| 代理商： | L6239 |
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L6239
12V DISK DRIVE SPINDLE DRIVER
PRODUCT PREVIEW
General
12V OPERATION
REGISTER BASED ARCHITECTURE
SLEEP
AND
IDLE
POWERCONSUMPTION
SERIAL INTERFACE
MODES
FOR
LOW
Spindle Driver
BEMF PROCESSING FOR SENSOR-LESS
MOTOR COMMUTATION
INTERNAL POWER DEVICES
PROGRAMMABLE SLEW-RATE FOR RE-
DUCED E.M.I.
20 FOR ANY HALF BRIDGE WORST CASE
(1
PERDEVICE)
B.E.M.F.
DETECTION
REGISTER OR PIN
NO SNUBBERS REQUIRED FOR LOOP
COMPENSATION OR E.M.I. CONTROL
READABLE
FROM
OtherFunctions
POWER UP SEQUENCING
POWER DOWN SEQUENCING
PWM OPERATION
LOW VOLTAGESENSE
DYNAMIC BRAKE
THERMAL WARNING
THERMAL SHUTDOWN
NEGATIVE VOLTAGE REGULATOR SUP-
PORT
DESCRIPTION
The L6239 is a single chip sensorless (DC) spin-
dle motor controller including power stages suit-
able for use in disk drives.
The device has a serial interface for a microproc-
essor running up to 10 mega bits per second.
There are registers on chip to allow the setting of
the desired operating modes No external compo-
nentsare required in the sensor-lessoperationas
the control functions are integrated on chip (e.g.
B.E.M.F.processing& digital masking).
When a power On Reset (P.O.R.) is accepted,
the internal registers are reset, the spindle power
circuitry is tri-stated, and dynamic braking of the
spindleis applied.
This device is built in BCD II technologyallowing
dense digital/analog circuitry to be combined with
high power DMOS output stage.
Thisis advancedinformation on a new productnow in developmentor undergoing evaluation. Details are subjectto change without notice.
March 1995
ORDERING NUMBER:
L6239
PLCC44
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O
O
R
O
G
O
G
O
O
R
R
GND
Vpower
Vpower
Cpump1
Cpump2
Vpump
Vanalog
bemf_det
Vreg_Base
Vreg_Vsense
GND
GND
AGND
N.C.
Ctr Tap
PWM/Slew
CSA Input
gm Comp
Gate Drive
PWM Timer
N.C.
GND
B
S
V
S
V
S
N
S
S
P
R
D95IN222
PINCONNECTION
MULTIPOWER BCD TECHNOLOGY
1/13
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