參數(shù)資料
型號(hào)： 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(yè)數(shù)： 16/28頁(yè)
文件大?。?/td> 258K
代理商： L6256
Auxiliary Control Register
Bit Function
Start (1)
VCM enable (2)
Spindle enable (3)
Thermal Limit
Test Enable (7)
Software POR
Spare
Register Brake
Address: 0111
Init State
xxx
0
0
0
0
off
Mnemonic
START
VC_EN
SP_EN
OVTEMP
T_EN
SPOR
R/W
W
W
W
R
W
W
Bit #
0
1
2
3
4
5
Read 1 indicates:
N/A
enabled (5)
enabled (5)
Th Limit
enabled (5)
always 0 (5)
RBRAKE
disabled (4)
R/W
7
Braking * (6)
NOTES:
(1) Start disables slew rate control. It also changes the back EMF detection circuitry from 3 phase to single phase.
(2) shuts down active circuitry and drives to the ground state when 0. A transition on this bit is required to reactivate the VCM. see state dia-
gram.
(3) shuts down active circuitry and tristates when 0. A transition on this bit is required to reactivate the spindle circuitry. see state diagram.
(4) Writing to brake will cause a register park, then a brake sequence (an internal POR), without causing an external POR\. Thus, the rest of
the system including the processor will not be reset.
(5) Optional bits.
(6) The register brake function has been redesigned to allow use of a momentary, current limited brake during start mode only. Asserting this
bit overrides the CCTR or CPR register contents without disturbing them, and causes a brake on the spindle outputs.
Resetting the bit restores the previous state ( the outputs were in before the bit was asserted). DO NOT attempt to change the CCTR or
CPR, or send a SP_CLK while this bit is asserted.
(7) Test Enable is used to enable manufacturer specific test circuitry within the chip. This bit should be initialized with a 0 value and left at 0
at all times. Do not attempt to use this bit for any reason unless you have complete manufacturer specific information.
Test Register
Bit Function
Bits: TBD
Address: 1000
Init State
up to 16 read, 8 write
R/W
Read 1 indicates:
NOTE: The test register requires 2 level access. That is, the test enable bit in the Aux Control Register must be written to with a 1 or the test
register is locked out.
Status Register (read only)
Status Bit
Dead Bit (unusable for timing reasons)
UV detect
Overtemperature Warning
Overtemperature Shutdown
Version Number (2 bits)
Mnemonic
Address: 0100
High Indicates
n/a
Undervoltage Occuring
Exceeded Warning Temp
Exceeded Shutdown Temp (1)
(2)
Address
Bit 0
Bit 1
Bit 2
Bit 3
4 = Bit 0
5 =Bit 1
Bit 6
Bit 7
-
UV_DET *
TWARN
OVTEMP
VERS *
Vendor Number
Spindle Current Limit
VENDOR
SILIM
(2)
Current Has Exceeded
threshold (7) (8)
n/a
Changes state on XOR of
Comparator A, B, C
Positive High
Write (3)
CSELB occurs during active
transmission (4) (7)
Toggles (5)
Correct PWM phasing (6)
Reports correct spindle
rotation direction
Dead Bit (unusable for timing reasons)
EMF XOR Output
Bit 8
Bit 9
EMFX
EMF A Comparator Output
DAC write
Transmission Error
EMFA
XOR
TX_ERR *
Bit 10
Bit 11
Bit 12
Aux_Write
Phase Detect
Spindle Forward
AUX_WR
PH_DET
SP_FWD *
Bit 13
Bit 14
Bit 15
NOTE: the status register is readable during a POR\ for in circuit testability.
(1) Overtemperature Shutdown or Warning do not cause POR\. This arrangement allows graceful recovery from overtemperature conditions.
(2) Vendor bit = 0 for Unitrode, 1 for ST. Version number, Bits 0,1 allow 4 chip versions. For the Dolphin: Bit 0 = 1, Bit 1 = 0. This allows de-
L6256
16/28
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”
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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
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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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