參數(shù)資料
型號： MIC2559
廠商： Micrel Semiconductor,Inc.
英文描述： Replaced by PT6502 :
中文描述： 雙卡插槽的PCMCIA交流在線切換矩陣
文件頁數(shù)： 6/6頁
文件大小： 74K
代理商： MIC2559
April 1998
2-21
MIC2559
Micrel
2
action performed by a large filter capacitor on V
PP IN
. The
V
PP OUT
transition from V
CC
to 12.0V typically takes 25
μ
S.
After programming is completed, the controller outputs a
(0,1) to the MIC2559, which then reduces V
PP OUT
to the
V
CC
level. Break-before-make switching action reduces
switching transients and lowers maximum current spikes
through the switch from the output capacitor.
If no card is inserted, or the system is in sleep mode, the
controller outputs either a (0,0) or a (1,1) to the MIC2559.
Either input places the switch into shutdown mode, where
current consumption drops even further.
The HiZ/Low input controls the optional logic low output
clamp. With HiZ/Low in the high state and EN0 = EN1 = 0,
V
PP OUT
enters a high impedance (open) state. With HiZ/
Low in the low state and EN0 = EN1 = 0, V
PP OUT
is clamped
to ground, providing a logic low signal. The clamp does not
require any DC bias current for operation.
MOSFET drive and bias voltage is derived from V
PP IN
.
Internal device control logic is powered from V
DD
, which
should be connected to the same supply voltage as the
PCMCIA controller (normally either 3.3V or 5V).
Output Current
MIC2559 output switches are capable of far more current
than usually needed in PCMCIA applications. PCMCIA V
PP
output current is limited primarily by switch resistance voltage
drop (
I
x
R
) and the requirement that V
PP OUT
cannot drop
more than 5% below nominal. V
PP OUT
will survive output
short circuits to ground if V
PP IN
or V
CC
are current limited by
the regulator that supplies these voltages.
VPP OUT 1
0.1μF
EN01
EN11
Hi-Z/ Low 2 Control
1μF
+12V
VPP IN
+5V
Hi-Z/ Low 1 Control
VDD
EN02
EN12
VPP OUT 2
0.1μF
MIC2559
4
7
6
5
3
2
8
9
10
11
12
13
14
0.1μF
MIC2951
SD
V
GND
4
7
8
OUT
+V
IN
FB
1
3
SHUTDOWN
INPUT
100pF
2N2222
1%
300k
1%
180k
+
3.3μF
470 k
OFF
ON
220k
1%
TTL Logic Level
High (V > 1.5V) VCC = 5.0V
Low (V < 0.5V) VCC = 3.3V
VCC Switching and Control Block
Figure 3. Full PCMCIA Implementation of V
PP
and V
CC
switching using MIC2559 and MIC2951 voltage regulator.
相關(guān)PDF資料
PDF描述
MIC2559BM Replaced by PT6502 :
MIC2559BMTR PCMCIA Dual Card Socket VPP Switching Matrix
MIC2561 PCMCIA Card Socket VCC & VPP Switching Matrix
MIC2561-0BM PCMCIA Card Socket VCC & VPP Switching Matrix
MIC2561-1BM PCMCIA Card Socket VCC & VPP Switching Matrix
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MIC2560-0BWM 功能描述:電源開關(guān) IC - 配電 PCMCIA Card Sw. Matrix RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
MIC2560-0BWM TR 功能描述:電源開關(guān) IC - 配電 PCMCIA Card Sw. Matrix RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
MIC2560-0YWM 功能描述:電源開關(guān) IC - 配電 PCMCIA Card Sw. Matrix - Lead Free RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
MIC2560-0YWM TR 功能描述:電源開關(guān) IC - 配電 PCMCIA Card Sw. Matrix - Lead Free RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
MIC25601BWM 制造商:MICREL 功能描述:* 制造商:Micrel Inc 功能描述:
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