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參數(shù)資料
| 型號： | L6256 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 12V COMBO |
| 中文描述： | 12V的組合 |
| 文件頁數(shù)： | 2/28頁 |
| 文件大?。?/td> | 258K |
| 代理商： | L6256 |
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constant torque. This is a very high power dissi-
pation mode, meant only for momentary opera-
tion in unusual circumstances.
Spindown during a power failure uses the back
EMF voltage generated by the spindle motor to
provide power to the VCM amplifier. The Spindle
motor coasts during the Brake Delay time to allow
time to park the head actuator. The park circuit is
a constant voltage circuit settable externally.
After the head is parked, braking commences.
The brake operates by shorting all 3 windings.
The spindle output stages stay on as long as is
required to bring the motor to a complete stop,
even if no power is applied to the part.
A Power On Reset (POR) function provides pulse
stretching for the bidirectional POR\ bus, to en-
sure that the processor and clocks are at running
speed before allowing them to function.
5 volt and 12 volt pins are used directly for the un-
dervoltage detect circuit.
This allows direct use internally of both supplies.
Voltage monitor margining is supported.
An external 3.3V linear regulator is provided and
tied into the POR circuit.
ABSOLUTE MAXIMUM RATINGS
Symbol
V
PWR
V
PVR
V
dd
V
CC
I_VCM, Aout
Parameter
Value
15
<20
15
6.4
Unit
V
V (1)
V
V
Normal Operating Voltage
Inductive Clamp Voltage @ 2mH, 1.6A, 3% Duty Cycle
-2 to V
PWR
+2V
-0.3 to V
CC
+0.3
-0.3 to V
PWR
+0.3V
-65 to +150
±
2
Logic I/O, SH_Out, PWM_DC
All other pins
T
stg
Storage Ambient Temperature
ESD capability
°C
kV
(1) Limited by chip clamp voltage.
1
2
3
5
6
4
7
8
9
10
12
11
13
14
15
16
17
39
38
37
36
34
35
33
32
31
30
29
40
41
42
44 43
23
22
21
19
18
20
28
27
26
24 25
S
S
S
S
G
S
G
C
S
S
S
GND
R_SLEW
POR_RC
nPOR
BEMF_DET
PWM_IN
SCLK
SDIO
VCC
BYPASSC
5V_GND
GND
SH_OUT
FF_COMP
PWM_DC
VDD
REF_IN
H_VPWR
DAC
IO_VC
A_IN
GND
B
C
V
C
C
Q
C
P
I
V
A
D97IN572
PIN CONNECTION
OPERATING CONDITIONS
V
CC
= 4.5 to 5.5V
V
dd
= 10.8 to 13.2V
0°C < T
amb
< 70°C.
DESCRIPTION
(Continued)
L6256
2/28
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6258E | PWM CONTROLLED - HIGH CURRENT DMOS UNIVERSAL MOTOR DRIVER |
| L6258EX | PWM CONTROLLED - HIGH CURRENT DMOS UNIVERSAL MOTOR DRIVER |
| L6260 | 4.5 - 5.5V DISK DRIVER SPINDLE & VCM, POWER & CONTROL COMBO’S |
| L6268 | 12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL “COMBO” |
| L6269 | 12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL “COMBO” |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6258 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PWM controlled high current DMOS universal motor driver |
| L6258_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PWM controlled high current DMOS universal motor driver |
| L6258A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Stepper Motor Controller/Driver |
| L6258E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L6258E_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PWM controlled high current DMOS universal motor driver |
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