參數(shù)資料
型號(hào)： TLS24310
廠商： Texas Instruments, Inc.
英文描述： Magnetoresistive/Thin-Film Read/Write Preamplifiers(10通道磁阻/薄膜讀/寫用前置放大器)
中文描述： 磁阻/薄膜讀/寫前置放大器（10通道磁阻/薄膜讀/寫用前置放大器）
文件頁(yè)數(shù)： 22/31頁(yè)
文件大?。?/td> 676K
代理商： TLS24310
TLS24308, TLS24310, TLS24318, TLS24320
8- AND 10-CHANNEL MAGNETORESISTIVE/THIN-FILM
READ/WRITE PREAMPLIFIERS
SQHS009 – JANUARY 1996
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
fault mode
TI recommends that a 2.4-k pullup resistor to V
CC
be connected to FLT/SE, which is an open-collector output.
During write mode, FLT is valid after one low-to-high transition of WDX/WDY following the required read-write
transition time. RDX and RDY are in a high-impedance state during all fault-mode occurrences except when
an MR-head short occurs. For all fault modes except WDX/WDY frequency low, one transition of WDX/WDY
is required to clear FLT after removing the fault condition. The WDX/WDY frequency low-fault detector is cleared
when two consecutive positive transitions of WDX/WDY meet the minimum frequency for the flip-flop-disabled
device or when three consecutive positive transitions are detected that meet the minimum frequency for the
flip-flop-enabled device. Table 5 summarizes the fault conditions.
Table 5. Fault Conditions
MODE
FLT OUTPUT STATE
FAULT CONDITION
SAFE
FAULT
Read
H
H
H
H
L
L
L
L
MR head open
MR head short
Thermal-asperity detect
Low VCC
Write
H
H
H
H
H
L
L
L
L
L
WDX/WDY frequency low
Head short to ground
Head open
No write current
Low VCC
Low VCC
Idle
RDX and RDY are in the high-impedance state for all fault-mode occurrences.
H
L
The write-current and read-bias-current sources remain activated during any fault mode, but the driver circuit
controlling I
I(W)
and
II(BIAS)
has a shunt circuit that reduces I
I(W)
and
II(BIAS)
to zero.
For a complete listing of optional functions, see Table 1.
MR-head short detection
The voltage comparator is presented at the input stage to protect MR from head short. The preamplifier stays
in the active mode and only FLT reports this fault.
MR-head open protection
The voltage comparator is presented at the input stage to protect MR from head open. The preamplifier goes
to a pseudo-idle mode until the fault is cleared, after which either taking CS high or selecting another functional
head resets the preamplifier.
相關(guān)PDF資料
PDF描述
TLS24318 Magnetoresistive/Thin-Film Read/Write Preamplifiers(8通道磁阻/薄膜讀/寫用前置放大器)
TLS24320 Magnetoresistive/Thin-Film Read/Write Preamplifiers(10通道磁阻/薄膜讀/寫用前置放大器)
TLSU163 TLSU163
TLSU163F TLSU163
TLSU164 TLSU163
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLS245 制造商:Texas Instruments 功能描述:
TLS24M554DBT 制造商:Texas Instruments 功能描述:24M554DBT
TLS2501DZQLRG1 制造商:Texas Instruments 功能描述:
TLS251 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TLG251, TLY251, TLO251, TLS251
TLS255K100C1A 制造商:CORNELL DUBILIER ELECTRONICS 功能描述:Cap Tant Wet 2.5uF 100V 10% (5.56 X 15.45mm) Axial
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*