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参数资料
| 型号： | MIC2537-1BM TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC USB SWITCH QUAD 16-SOIC |
| 标准包装： | 2,500 |
| 类型： | USB 开关 |
| 输出数： | 4 |
| Rds（开）： | 700 毫欧 |
| 内部开关： | 是 |
| 电流限制： | 250mA |
| 输入电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC2537-1BMTR MIC2537-1BMTR-ND |
MIC2537
General Description
MIC2537
Quad Power Distribution Switch
Final Information
Features
Micrel
The MIC2537 is a cost-effective high-side power switch with
four independently controlled channels, optimized for bus-
powered Universal Serial Bus (USB) applications. Few exter-
nal components are necessary to satisfy USB requirements.
The MIC2537 satisfies the following USB requirements: each
switch channel supplies up to 100mA as required by USB
bus-powered downstream devices; fault current is limited to
typically 250mA, well below the UL 25VA safety require-
ments; and a flag output is available to indicate fault condi-
tions to the local USB controller. Soft start eliminates the
momentary voltage drop on the upstream port that may occur
when the switch is enabled in bus-powered applications.
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Compliant to USB specifications
3V to 5.5V input
100mA minimum continuous load current per port
425m ? typical on-resistance
< 400mA current limit
Individual open-drain fault flag leads
3V/5V-compatible enable inputs
Active-high (-1) and active-low (-2) versions
100 μ A max. on-state supply current
<1 μ A typical off-state supply current
16-lead SOP package
– 40 ° C to 85 ° C operation
Additional features include thermal shutdown to prevent
catastrophic switch failure from high-current loads and 3.3V
Applications
and 5V logic compatible enable inputs.
The MIC2537 is available in active-high and active-low ver-
sions in a 16-lead SOP package.
Typical Application
Upstream V BUS
4.75V to 5.25V
500mA max.
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USB keyboards
USB bus-powered docking stations
Notebook docking stations
Notebook PCs
PDA
General power distribution
Ferrite
Bead
MIC5207-3.3
LDO Regulator
IN OUT
10k
3.3V USB Controller
V+ EN
10k 10k 10k
MIC2537
ENA
IN
33μF*
0.01μF
V BUS
D+
D –
GND
Downstream
USB
Port 1
100mA max.
4.7
μF
GND
1μF
D+
D –
OC
EN
OC
EN
OC
EN
FLGA
ENB
FLGB
ENC
FLGC
END
NC
OUTA
OUTB
OUTC
OUTD
NC
0.1
μF
33μF*
0.01μF
V BUS
D+
D–
GND
Downstream
USB
Port 2
100mA max.
Bold lines indicate
GND
OC
FLGD
GND
0.1" wide, 1-oz. copper
high-current traces.
* 33μF, 16V tantalum or 100μF, 10V electrolytic per port
33μF*
0.01μF
V BUS
D+
D –
Downstream
USB
Port 3
GND
V BUS
100mA max.
33μF*
0.01μF
D+
D –
GND
Downstream
USB
Port 4
100mA max.
Typical Bus-Powered Hub
UL Recognized Component
Micrel, Inc. ? 1849 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 944-0970 ? http://www.micrel.com
December 1999
1
MIC2537
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2537-1YM | 功能描述:电源开关 IC - USB Quad USB Switch (Lead Free) RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MIC2537-1YM TR | 功能描述:电源开关 IC - USB Quad USB Switch (Lead Free) RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MIC2537-2BM | 功能描述:IC USB SWITCH QUAD 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电源分配开关 系列:- 特色产品:XRP252 Switches 标准包装:1 系列:- 类型:高端开关 输出数:2 Rds（开）:140 毫欧 内部开关:是 电流限制:1.15A 输入电压:1.75 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN（3x3） 包装:Digi-Reel® 其它名称:1016-1691-6 |
| MIC2537-2BM TR | 功能描述:IC USB SWITCH QUAD 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电源分配开关 系列:- 特色产品:XRP252 Switches 标准包装:1 系列:- 类型:高端开关 输出数:2 Rds（开）:140 毫欧 内部开关:是 电流限制:1.15A 输入电压:1.75 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN（3x3） 包装:Digi-Reel® 其它名称:1016-1691-6 |
| MIC2537-2YM | 功能描述:电源开关 IC - USB Quad USB Switch (Lead Free) RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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