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Fairchild Semiconductor Electronic Components Datasheet

FAN3226 Datasheet

(FAN3226 - FAN3229) Low-Side Gate Drivers

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May 2008
FAN3226 / FAN3227 / FAN3228 / FAN3229
Dual 2A High-Speed, Low-Side Gate Drivers
Features
ƒ Industry-Standard Pinouts
ƒ 4.5 to 18V Operating Range
ƒ 3A Peak Sink/Source at VDD = 12V
ƒ 2.4A Sink / 1.6A Source at VOUT = 6V
ƒ Choice of TTL or CMOS Input Thresholds
ƒ Four Versions of Dual Independent Drivers:
- Dual Inverting + Enable (FAN3226)
- Dual Non-Inverting + Enable (FAN3227)
- Dual Inputs in Two Pin Configurations:
ƒ Standard (FAN3228)
ƒ Alternate (FAN3229) for compatibility with TI
ƒ Internal Resistors Turn Driver Off If No Inputs
ƒ MillerDrive™ Technology
ƒ 12ns / 9ns Typical Rise/Fall Times with 1nF Load
ƒ Typical Propagation Delay Under 20ns Matched
within 1ns to the Other Channel
ƒ Double Current Capability by Paralleling Channels
www.DataShƒeet48U-.Lcoemad 3x3mm MLP or 8-Lead SOIC Package
ƒ Rated from –40°C to +125°C Ambient
Applications
ƒ Switch-Mode Power Supplies
ƒ High-Efficiency MOSFET Switching
ƒ Synchronous Rectifier Circuits
ƒ DC-to-DC Converters
ƒ Motor Control
ƒ Servers
Description
The FAN3226-29 family of dual 2A gate drivers is
designed to drive N-channel enhancement-mode
MOSFETs in low-side switching applications by
providing high peak current pulses during the short
switching intervals. The driver is available with either
TTL or CMOS input thresholds. Internal circuitry
provides an under-voltage lockout function by holding
the output low until the supply voltage is within the
operating range. In addition, the drivers feature
matched internal propagation delays between A and B
channels for applications requiring dual gate drives with
critical timing, such as synchronous rectifiers. This
enables connecting two drivers in parallel to effectively
double the current capability driving a single MOSFET.
The FAN322X drivers incorporate MillerDrive™
architecture for the final output stage. This bipolar-
MOSFET combination provides high current during the
Miller plateau stage of the MOSFET turn-on / turn-off
process to minimize switching loss, while providing rail-
to-rail voltage swing and reverse current capability.
The FAN3226 offers two inverting drivers and the
FAN3227 offers two non-inverting drivers. Each device
has dual independent enable pins that default to ON if
not connected. In the FAN3228 and FAN3229, each
channel has dual inputs of opposite polarity, which
allows configuration as non-inverting or inverting with an
optional enable function using the second input. If one
or both inputs are left unconnected, internal resistors
bias the inputs such that the output is pulled low to hold
the power MOSFET off.
FAN3226
FAN3227
FAN3228
Figure 1. Pin Configurations
© 2007 Fairchild Semiconductor Corporation
FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.3
FAN3229
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

FAN3226 Datasheet

(FAN3226 - FAN3229) Low-Side Gate Drivers

No Preview Available !

Ordering Information
Part Number
Logic
Input
Threshold
Package
Packing Method
Quantity
per Reel
FAN3226CMPX
FAN3226CMX
FAN3226TMPX
FAN3226TMX
Dual Inverting Channels +
Dual Enable
CMOS
TTL
3x3mm MLP-8
SOIC-8
3x3mm MLP-8
SOIC-8
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
3,000
2,500
3,000
2,500
FAN3227CMPX
FAN3227CMX
FAN3227TMPX
FAN3227TMX
Dual Non-Inverting Channels
+ Dual Enable
CMOS
TTL
3x3mm MLP-8
SOIC-8
3x3mm MLP-8
SOIC-8
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
3,000
2,500
3,000
2,500
FAN3228CMPX
FAN3228CMX
FAN3228TMPX
FAN3228TMX
Dual Channels of Two-Input /
One-Output Drivers, Pin
Configuration 1
CMOS
TTL
3x3mm MLP-8
SOIC-8
3x3mm MLP-8
SOIC-8
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
3,000
2,500
3,000
2,500
FAN3229CMPX
FAN3229CMX
FAN3229TMPX
FAN3229TMX
Dual Channels of Two-Input /
One-Output Drivers, Pin
Configuration 2
CMOS
TTL
3x3mm MLP-8
SOIC-8
3x3mm MLP-8
SOIC-8
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
3,000
2,500
3,000
2,500
All standard Fairchild Semiconductor products are RoHS compliant and many are also “GREEN” or going green. For Fairchild’s
definition of “green” please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Package Outlines
www.DataSheet4U.com
Figure 2. 3x3mm MLP-8 (Top View)
Figure 3. SOIC-8 (Top View)
Thermal Characteristics(1)
Package
ΘJL(2) ΘJT(3) ΘJA(4) ΨJB(5) ΨJT(6) Units
8-Lead 3x3mm Molded Leadless Package (MLP)
1.6 68 43 3.5 0.8 °C/W
8-Pin Small Outline Integrated Circuit (SOIC)
40 31 89 43 3.0 °C/W
Notes:
1. Estimates derived from thermal simulation; actual values depend on the application.
2. Theta_JL (ΘJL): Thermal resistance between the semiconductor junction and the bottom surface of all the leads (including any
thermal pad) that are typically soldered to a PCB.
3. Theta_JT (ΘJT): Thermal resistance between the semiconductor junction and the top surface of the package, assuming it is
held at a uniform temperature by a top-side heatsink.
4. Theta_JA (ΘJA): Thermal resistance between junction and ambient, dependent on the PCB design, heat sinking, and airflow.
The value given is for natural convection with no heatsink, as specified in JEDEC standards JESD51-2, JESD51-5, and
JESD51-7, as appropriate.
5. Psi_JB (ΨJB): Thermal characterization parameter providing correlation between semiconductor junction temperature and an
application circuit board reference point for the thermal environment defined in Note 4. For the MLP-8 package, the board
reference is defined as the PCB copper connected to the thermal pad and protruding from either end of the package. For the
SOIC-8 package, the board reference is defined as the PCB copper adjacent to pin 6.
6. Psi_JT (ΨJT): Thermal characterization parameter providing correlation between the semiconductor junction temperature and
the center of the top of the package for the thermal environment defined in Note 4.
© 2007 Fairchild Semiconductor Corporation
FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.3
2
www.fairchildsemi.com


Part Number FAN3226
Description (FAN3226 - FAN3229) Low-Side Gate Drivers
Maker Fairchild Semiconductor
Total Page 24 Pages
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