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PDF MIC4129 Data sheet ( Hoja de datos )
| Número de pieza | MIC4129 | |
| Descripción | 6A-Peak Low-Side MOSFET Driver | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MIC4129 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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MIC4120/4129
Micrel, Inc.
MIC4120/4129
www.DataSheet4U.com
6A-Peak Low-Side MOSFET Driver
Bipolar/CMOS/DMOS Process
General Description
MIC4120 and MIC4129 MOSFET drivers are resilient,
efficient, and easy to use. The MIC4129 is an inverting
driver, while the MIC4120 is a non-inverting driver. The
MIC4120 and MIC4129 are improved versions of the
MIC4420 and MIC4429.
The drivers are capable of 6A (peak) output and can drive
the largest MOSFETs with an improved safe operating
margin. The MIC4120/4129 accept any logic input from
2.4V to VS without external speed-up capacitors or resis-
tor networks. Proprietary circuits allow the input to swing
negative by as much as 5V without damaging the part. Ad-
ditional circuits protect against damage from electrostatic
discharge.
MIC4120/4129 drivers can replace three or more discrete
components, reducing PCB area requirements, simplifying
product design, and reducing assembly cost.
Modern BiCMOS/DMOS construction guarantees freedom
from latch-up. The rail-to-rail swing capability insures ad-
equate gate voltage to the MOSFET during power up/down
sequencing.
Features
• CMOS Construction
• Latch-Up Protected: Will Withstand >200mA
Reverse Output Current
• Logic Input Withstands Negative Swing of Up to 5V
• Matched Rise and Fall Times ................................ 25ns
• High Peak Output Current ............................... 6A Peak
• Wide Operating Range ............................... 4.5V to 20V
• High Capacitive Load Drive ............................10,000pF
• Low Delay Time .............................................. 55ns Typ
• Logic High Input for Any Voltage From 2.4V to VS
• Low Equivalent Input Capacitance (typ) ..................6pF
• Low Supply Current ...............450µA With Logic 1 Input
• Low Output Impedance ......................................... 2.5Ω
• Output Voltage Swing Within 25mV of Ground or VS
• Exposed backside pad packaging reduces heat
- ePAD SOIC-8L (θJA = 58°C/W)
- 3mm x 3mm MFL™-8L (θJA = 60°C/W)
Applications
• Switch Mode Power Supplies
• Motor Controls
• Pulse Transformer Driver
• Class-D Switching Amplifiers
Functional Diagram
0.1mA
IN 2kΩ
0.4mA
MIC4129
INVERTING
VS
MIC4120
NONINVERTING
GND
OUT
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
August 2005
1
M9999-081105
1 page  
MIC4120/4129
Typical Characteristics
R is e Time
60
10000pF
50
40
30 4700pF
20
2200pF
10
05 10 15
INPUT VOLTAGE (V)
20
Output R es is tanc e
vs . S upply V oltage
3.0
2.5
Output High
2.0
1.5 Output Low
1.0
0.5
05 10 15
SUPPLY VOLTAGE (V)
20
Fall Time
60
50 10000pF
40
30 4700pF
20
10 2200pF
05 10 15
INPUT VOLTAGE (V)
20
Micrel, Inc.
www.DataSheet4U.com
Delay Time
vs . Input V oltage
60
50 td2
40
30 td1
20
10
05 10 15
INPUT VOLTAGE (V)
20
August 2005
5
M9999-081105
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MIC4129.PDF ] | |
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