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PDF MIC2033 Data sheet ( Hoja de datos )
| Número de pieza | MIC2033 | |
| Descripción | High-Accuracy High-Side Fixed Current Limit Power Switch | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MIC2033 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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MIC2033
High-Accuracy, High-Side, Fixed
Current Limit Power Switch
General Description
The MIC2033 is a high-side MOSFET power distribution
switch providing increased system reliability utilizing 5%
current limit accuracy.
The MIC2033 has an operating input voltage range from
2.5V to 5.5V, is internally current limited and has thermal
shutdown to protect the device and system. The MIC2033
is offered with either active-high or active-low logic level
enable input controls, has an open drain fault status output
flag with a built-in 32ms delay that asserts low during over
current or thermal shutdown conditions.
The MIC2033 is available in several different fixed current
limit options: 0.5A, 0.8A, 1A, and 1.2A. A capacitor
adjustable soft-start circuit minimizes inrush current in
applications where high capacitive loads are used.
The MIC2033 is offered in both 6-pin SOT-23 and 6-pin
2mm x 2mm thin DFN packages. The MIC2033 has an
operating junction temperature range of −40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• ±5% current limit accuracy
• Input supply range from 2.5V to 5.5V
• Low quiescent current: 100µA typical (switch ON)
• 75mΩ typical RDS(ON) at 5V
• Current limit options: 0.5A, 0.8A, 1A, and 1.2A
• Soft-start control via an external capacitor
• Undervoltage lockout (UVLO)
• Fast response time (10µs) to short circuit loads
• Fault status output flag
• Logic controlled enable (active-high, active-low)
• Thermal shutdown
• Pin compatible with MIC2005
• 6-pin 2mm × 2mm thin DFN and 6-pin SOT-23
packages
• Junction temperature range from −40°C to +125°C
Applications
• USB peripherals and USB 2.0/3.0 compatible
• DTV/STB
• Notebooks and consumer electronics
• General purpose power distribution
____________________________________________________________________________________________________________
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
November 11, 2015
Revision 1.1
1 page  
Micrel, Inc.
MIC2033
Electrical Characteristics(4) (Continued)
VIN = VEN = 5V; CIN = 1µF; CCSLEW = 0.1µF; COUT = 1µF; TJ = 25°C. Bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
Current Limit
ILIMIT
I/O
Current Limit
Accuracy
MIC2033-05xxxx, VOUT = 0.8*VIN
MIC2033-08xxxx, VOUT = 0.8*VIN
MIC2033-10xxxx, VOUT = 0.8*VIN
MIC2033-12xxxx, VOUT = 0.8*VIN
0.475 0.5 0.525
0.76 0.8 0.84
0.95 1.0 1.05
1.14 1.2 1.26
A
Logic Low
VEN Enable Voltage
Logic High
0.5
V
1.5
IEN
Enable Input
Current
0V ≤ VEN ≤ 5V
1 µA
RFLAG
Fault Flag
Output
Resistance
IOUT = 10mA
25 Ω
IFLAG_OFF
Fault Flag Off
Current
VFLAG = VIN
10 µA
RFAULT/
FAULT/ Output
Resistance
IOUT = 10mA
25 Ω
IFAULT/_OFF
FAULT/ Off
Current
VFAULT/ = VIN
10 µA
ICSLEW
CSLEW Input
Current(6)
VCSLEW = VIN
0.6 µA
Thermal Protection
TTSD
Thermal
Shutdown
Temperature
TJ Rising
157 °C
TTSDHYS
Thermal
Shutdown
Hysteresis
15 °C
November 11, 2015
5
Revision 1.1
5 Page 
Micrel, Inc.
Functional Characteristics
MIC2033
November 11, 2015
11
Revision 1.1
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet MIC2033.PDF ] | |
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