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參數(shù)資料
| 型號(hào)： | L6245 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 5V HARD DISK DRIVE POWER COMBO |
| 中文描述： | 5V的硬盤驅(qū)動(dòng)器電源組合 |
| 文件頁數(shù)： | 4/15頁 |
| 文件大小： | 191K |
| 代理商： | L6245 |
PIN DESCRIPTION
[Pin Types: I = Input, O = Output, P = Power, A = Analog (passive)]
Power
Pin Number
12, 17
24,
3
7, 42, 64
10
59
Pin Name
VPOWER
VDIG
V
CC
GND
V
REF
POR
Pin Type
P
Description
Positive supply, nominally 5V.
P
I
0
Ground.
All analog signals are referenced to this voltage, nominally 2V.
POWER ON RESET - Goes low when the supply voltage is below the
VOLTAGE GOOD threshold. POR is an open collector output with an
internal 20k
pull-up.
POR DELAY. An external parallel RC network from this pin to ground
sets the time the POR signal stays active after voltage good.
An external capacitor from this pin to ground providesfiltering for the
V
CC
sense input of the POR circuit.
Charge pump capacitor
Charge pump inductor
61
POR_DLY
A
62
POR_FILT
A
5
6
CPC
CPL
A
A
MicroprocessorInterface
Pin Number
25
26
27
28
29
30
31
32
38
39
35
Pin Name
D7
D6
D5
D4
D3
D2
D1
D0
RD
WR
MC_CS
Pin Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
Description
An 8-bit bidirectional data bus which is connected to the internal
registers.
READ A low level on this pin allows the bus to be driven by the IC.
A low level on WRITE allows the IC to read data from thesystem bus.
CHIP SELECTA low level on this pin selects the IC for bus
transactions.
Microprocessor clock used forinternal timing.
The lowest three bits of the system address bus; used to address
internal registers
41
33
34
35
37
SYSCLK
A0
A1
A2
AS
I
I
I
I
I
ADDRESS STROBE The address appearing on A [0:2] is latched on
the falling edge of the AS pulse.
A maskable interrupt signal which is asserted low when an error flag in
the Status Registeris set. The output is open-drain with an internal
20K
pull-up.
An open drain, activelow signal used for asynchronous bus
transactions.
43
MC_ERR
O
40
DTACK
O
Brushless, Sensorless Motor Driver and 8 bit D/A
Pin Number
47
48
45
53
57
60
Pin Name
SPIN_DAC
SPIN_CMD
COIL_CT
COIL_U
COIL_V
COIL_W
Pin Type
O
I
I
O
Description
The output of an 8 bit D/A used for the command to the spindle driver.
The input to the spindle driver transconductance amplifier.
The center tap of the motor isconnected to thispin.
The motor coilsare driven by these outputs. Back EMF isalso sensed
at these pins.
L6245
4/15
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| L6246 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:12V VOICE COIL MOTOR DRIVER |
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| L6254 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL “COMBO” |
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