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參數(shù)資料
| 型號： | MIC2536 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Replaced by PT6526 : |
| 中文描述： | 雙USB配電開關的初步信息 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 132K |
| 代理商： | MIC2536 |
March 2000
1
MIC2536
MIC2536
Micrel
MIC2536
Dual USB Power Distribution Switch
Preliminary Information
General Description
The MIC2536 is a cost-effective high-side power switch, with
two independently controlled channels, optimized for bus-
powered Universal Serial Bus (USB) applications. Few exter-
nal components are necessary to satisfy USB requirements.
Each switch channel of the MIC2536 will supply up to 100mA
as required for USB bus-powered downstream devices. Fault
current is limited to typically 275mA by fast-acting current-
limit circuitry which minimizes voltage droop on the upstream
port during fault conditions. A flag output with transient filter
indicates fault conditions to the local USB controller but will
ignore short flag signals resulting from inrush current during
hot plug-in events.
Soft start eliminates the momentary voltage droop on other
ports that may occur when the switch is enabled in bus-
powered applications. Additional features include thermal
shutdown to prevent catastrophic switch failure from high-
current loads and 3.3V and 5V logic compatible enable
inputs.
The MIC2536 is available in active-high and active-low ver-
sions in 8-lead SOP and MSOP.
Typical Application
ENA
FLGA
FLGB
ENB
OUTA
IN
GND
OUTB
MIC2536-2
3.3V USB Controller
0.1μF
V
BUS
D+
D–
GND
Data
(Two Pair)
to USB
Controller
V
BUS
D+
D
–
GND
USB
Port 2
USB
Port 1
MIC5207-3.3
63μF
63μF
Ferrite
Beads
4.50V to 5.25V
Upstream V
BUS
100mA max.
V
BUS
D+
D
–
GND
Data
4.7μF
1μF
1.5k
ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
VIN
10k
IN
OUT
GND
.01μF
.01μF
10k
Typical Two-Port Bus-Powered Hub
Features
Compliant to USB specifications
2.7V to 5.5V operating range
150mA minimum continuous load current per channel
400m
typical on-resistance
Fast-acting short circuit protection with
thermal shutdown
Integrated filter eliminates
false overcurrent flag assertions
Individual open-drain fault flag pins with transient filter
3V/5V-compatible enable inputs
Active-high (-1) and active-low (-2) versions
Reverse-current blocking in off mode (no
“
body diode
”
)
Soft-start circuit
100
μ
A maximum on-state supply current
<1
μ
A typical off-state supply current
–
40
°
C to 85
°
C operation
Applications
USB keyboard bus-powered hubs
USB bus-powered docking stations
Note Book PCs
PDAs
General purpose power distribution applications
PC board hot swap
Inrush current-limiting
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
相關PDF資料 |
PDF描述 |
|---|---|
| MIC2536-1BM | Dual USB Power Distribution Switch Preliminary Information |
| MIC2536-1BMM | Dual USB Power Distribution Switch Preliminary Information |
| MIC2536-2BM | Dual USB Power Distribution Switch Preliminary Information |
| MIC2536-2BMM | Dual USB Power Distribution Switch Preliminary Information |
| MIC2537 | Quad Power Distribution Switch(四獨立通道 電源分配開關) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2536-1BM | 功能描述:IC USB SWITCH DUAL 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電源分配開關 系列:- 特色產品:XRP252 Switches 標準包裝:1 系列:- 類型:高端開關 輸出數(shù):2 Rds（開）:140 毫歐 內部開關:是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-TDFN（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
| MIC2536-1BM TR | 功能描述:IC USB SWITCH DUAL 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電源分配開關 系列:- 特色產品:XRP252 Switches 標準包裝:1 系列:- 類型:高端開關 輸出數(shù):2 Rds（開）:140 毫歐 內部開關:是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-TDFN（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
| MIC2536-1BMM | 功能描述:IC USB SWITCH DUAL 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電源分配開關 系列:- 特色產品:XRP252 Switches 標準包裝:1 系列:- 類型:高端開關 輸出數(shù):2 Rds（開）:140 毫歐 內部開關:是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-TDFN（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
| MIC2536-1BMM TR | 功能描述:IC USB SWITCH DUAL 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電源分配開關 系列:- 特色產品:XRP252 Switches 標準包裝:1 系列:- 類型:高端開關 輸出數(shù):2 Rds（開）:140 毫歐 內部開關:是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-TDFN（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
| MIC2536-1YM | 功能描述:電源開關 IC - USB Dual USB Switch - Lead Free RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
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