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FAN3226

更新时间： 2024-11-26 02:57:23
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Dual 2-A High-Speed, Low-Side Gate Drivers

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FAN3226 /FAN3227 /FAN3228 /FAN3229  
Dual 2-A High-Speed, Low-SideGate Drivers  
Features  
Description  
.
.
.
.
.
.
Industry-Standard Pinouts  
The FAN3226-29 family of dual 2 A gate drivers is  
designed to drive N-channel enhancement-mode  
MOSFETs in low -side sw itching applications by  
providing high peak current pulses during the short  
sw itching intervals. The driver is available w ith either  
TTL or CMOS input thresholds. Internal circuitry  
provides an under-voltage lockout function by holding  
the output low until the supply voltage is w ithin the  
operating range. In addition, the drivers feature matched  
internal propagation delays betw een A and B channels  
for applications requiring dual gate drives w ith critical  
timing, such as synchronous rectifiers. This enables  
connecting tw o drivers in parallel to effectively double  
the current capability driving a single MOSFET.  
4.5-V to 18-V Operating Range  
3-A Peak Sink/Source at VDD = 12 V  
2.4 A-Sink / 1.6-A Source at VOUT = 6 V  
Choice of TTL or CMOS Input Thresholds  
Four Versions of Dual Independent Drivers:  
-
-
-
Dual Inverting + Enable (FAN3226)  
Dual Non-Inverting + Enable (FAN3227)  
Dual Inputs in Tw o Pin-Out Configurations:  
o Compatible w ith FAN3225x (FAN3228)  
o Compatible w ith TPS2814D (FAN3229)  
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 sw itching loss, w hile providing rail-  
to-rail voltage sw ing and reverse current capability.  
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.
.
.
Internal Resistors Turn Driver Off If No Inputs  
MillerDrive™ Technology  
12-ns / 9-ns Typical Rise/Fall Times (1-nF Load)  
Under 20-ns Typical Propagation Delay Matched  
w ithin 1 ns to the Other Channel  
The FAN3226 offers two inverting drivers and the  
FAN3227 offers tw o 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, w hich  
allows configuration as non-inverting or inverting w ith 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 pow er MOSFET off.  
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Double Current Capability by Paralleling Channels  
8-Lead 3x3 mm MLP or 8-Lead SOIC Package  
Rated from –40°C to +125°C Ambient  
Automotive Qualified to AEC-Q100 (F085 Version)  
Applications  
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Sw itch-Mode Pow er Supplies  
High-Efficiency MOSFET Sw itching  
Synchronous Rectifier Circuits  
DC-to-DC Converters  
Related Resources  
http://w w w.onsemi.com/pub/Collateral/AN-6069.pdf.pdf  
Motor Control  
Servers  
Automotive-Qualified Systems (F085 version)  
ENA  
1
8
ENB  
ENA  
1
8
ENB  
1
8
INA+  
INA+  
1
8
GND  
INA-  
+
-
+
-
INA  
GND  
INB  
2
3
4
A
7
6
5
OUTA  
VDD  
INA  
GND  
INB  
2
3
4
A
7
6
5
OUTA  
VDD  
INB+  
GND  
2
3
4
A
B
7
6
5
OUTA  
VDD  
2
3
4
A
B
7
6
5
OUTA  
VDD  
INA  
-
INB+  
+
-
+
-
OUTB  
OUTB  
OUTB  
OUTB  
B
B
INB-  
INB  
-
FAN3226  
FAN3227  
FAN3228  
FAN3229  
Figure 1. Pin Configurations  
© 2007 Semiconductor Components Industries, LLC.  
October-2017, Rev. 2  
Publication Order Number:  
FAN3229T-F085/D  
1234567...26

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