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PDF LM5104 Data sheet ( Hoja de datos )
| Número de pieza | LM5104 | |
| Descripción | High Voltage Half-Bridge Gate Driver with Adaptive Delay | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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January 2004
LM5104
High Voltage Half-Bridge Gate Driver with Adaptive
Delay
General Description
The LM5104 High Voltage Gate Driver is designed to drive
both the high side and the low side N-Channel MOSFETs in
a synchronous buck configuration. The floating high-side
driver is capable of working with supply voltages up to 100V.
The high side and low side gate drivers are controlled from a
single input. Each change in state is controlled in an adap-
tive manner to prevent shoot-through issues. In addition to
the adaptive transition timing, an additional delay time can
be added, proportional to an external setting resistor. An
integrated high voltage diode is provided to charge high side
gate drive bootstrap capacitor. A robust level shifter operates
at high speed while consuming low power and providing
clean level transitions from the control logic to the high side
gate driver. Under-voltage lockout is provided on both the
low side and the high side power rails. This device is avail-
able in the standard SOIC-8 pin and the LLP-10 pin pack-
ages.
n Adaptive rising and falling edges with programmable
additional delay
n Single input control
n Bootstrap supply voltage range up to 118V DC
n Fast turn-off propagation delay (25 ns typical)
n Drives 1000 pF loads with 15 ns rise and fall times
n Supply rail under-voltage lockout
Typical Applications
n Current Fed Push-Pull Power Converters
n High Voltage Buck Regulators
n Active Clamp Forward Power Converters
n Half and Full Bridge Converters
Package
n SOIC-8
n LLP-10 (4 mm x 4 mm)
Features
n Drives both a high side and low side N-channel
MOSFET
Simplified Block Diagram
FIGURE 1.
© 2004 National Semiconductor Corporation DS200890
20089003
www.national.com
1 page  
Typical Performance Characteristics
IDD vs Frequency
Operating Current vs Temperature
20089010
Quiescent Current vs Supply Voltage
20089011
Quiescent Current vs Temperature
IHB vs Frequency
20089012
20089013
HO & LO Peak Output Current vs Output Voltage
20089017
5
20089018
www.national.com
5 Page 
Physical Dimensions inches (millimeters) unless otherwise noted
Notes: Unless otherwise specified
1. Standard lead finish to be 200 microinches/5.00 micrometers minimum tin/lead (solder) on copper.
2. Pin 1 identification to have half of full circle option.
3. No JEDEC registration as of Feb. 2000.
LLP-10 Outline Drawing
NS Package Number SDC10A
11 www.national.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LM5104.PDF ] | |
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