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PDF FAN3111 Data sheet ( Hoja de datos )
| Número de pieza | FAN3111 | |
| Descripción | Low-Side Gate Driver | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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April 2009
FAN3111 — Single 1A High-Speed, Low-Side
Gate Driver
Features
1.4A Peak Sink / Source at VDD = 12V
1.1A Sink / 0.9A Source at VOUT = 6V
4.5 to 18V Operating Range
FAN3111C Compatible with FAN3100C Footprint
Two Input Configurations:
− Dual CMOS Inputs Allow Configuration as
Non-Inverting or Inverting with Enable Function
− Single Non-Inverting, Low-Voltage Input for
Compatibility with Low-Voltage Controllers
Small Footprint Facilitates Distributed Drivers for
Parallel Power Devices
15ns Typical Delay Times
9ns Typical Rise / 8ns Typical Fall times with
470pF Load
5-Pin SOT23 Package
Rated from –40°C to 125°C Ambient
Description
The FAN3111 1A gate driver is designed to drive an N-
channel enhancement-mode MOSFET in low-side
switching applications.
Two input options are offered: FAN3111C has dual
CMOS inputs with thresholds referenced to VDD for use
with PWM controllers and other input-signal sources
that operate from the same supply voltage as the driver.
For use with low-voltage controllers and other input-
signal sources that operate from a lower supply voltage
than the driver, that supply voltage may also be used as
the reference for the input thresholds of the FAN3111E.
This driver has a single, non-inverting, low-voltage input
plus a DC input VXREF for an external reference voltage
in the range 2 to 5V.
The FAN3111 is available in a lead-free finish industry-
standard 5-pin SOT23.
Applications
Switch-Mode Power Supplies
Synchronous Rectifier Circuits
Pulse Transformer Driver
Logic to Power Buffer
Motor Control
Figure 1. FAN3111C (Top View)
© 2008 Fairchild Semiconductor Corporation
FAN3111 • Rev. 1.0.1
Figure 2. FAN3111E (Top View)
www.fairchildsemi.com
1 page  
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Electrical Characteristics
Unless otherwise noted, VDD = 12V, VXREF = 3.3V, TJ = -40°C to +125°C. Currents are defined as positive into the
device and negative out of the device.
Symbol
Parameter
Supply
VDD Operating Range
IDD Static Supply Current
Inputs (FAN3111C)
VIL_C
IN Logic, Low-Voltage Threshold
VIH_C IN Logic, High-Voltage Threshold
IINL IN Current, Low
IINH IN Current, High
VHYS_C Input Hysteresis Voltage
Inputs (FAN3111E)
VIL_E
VIH_E
IINL
IINH
VHYS_E
Output
IN Logic, Low-Voltage Threshold
IN Logic, High-Voltage Threshold
IN Current, Low
IN Current, High
Input Hysteresis Voltage
ISINK OUT Current, Mid-Voltage, Sinking(8)
ISOURCE OUT Current, Mid-Voltage, Sourcing(8)
IPK_SINK
IPK_SOURCE
tRISE
tFALL
OUT Current, Peak, Sinking(8)
OUT Current, Peak, Sourcing(8)
Output Rise Time(9)
Output Fall Time(9)
tD1, tD2 Output Prop. Delay(9)
IRVS Output Reverse Current Withstand(8)
Notes:
8. Not tested in production.
9. See Timing diagrams.
Conditions
Inputs Not Connected
IN from 0 to VDD
IN from 0 to VDD
IN from 0 to VXREF
IN from 0 to VXREF
OUT at VDD/2,
CLOAD = 47nF, f = 1KHz
OUT at VDD/2,
CLOAD = 47nF, f = 1KHz
CLOAD = 47nF, f = 1KHz
CLOAD = 47nF, f = 1KHz
CLOAD = 470pF
CLOAD = 470pF
FAN3111C: 0 - 12VIN,
1V/ns Slew Rate
FAN3111E: 0 - 3.3VIN,
1V/ns Slew Rate
Min. Typ. Max. Unit
4.5 18.0
5 10
V
µA
30 38
%VDD
55 70 %VDD
-1 175 µA
-175
1 µA
17 %VDD
25 30
50
-1
-50
20
%VXREF
60 %VXREF
50 µA
1 µA
%VXREF
1.1
-0.9
1.4
-1.4
9 18
8 17
A
A
A
A
ns
ns
15 30
ns
250 mA
© 2008 Fairchild Semiconductor Corporation
FAN3111 • Rev. 1.0.1
5
www.fairchildsemi.com
5 Page 
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Typical Performance Characteristics
Typical characteristics are provided at 25°C, VDD = 12V, and VXREF = 3.3V unless otherwise noted.
Figure 31. Quasi-Static Sink Current (VDD=12V)
Figure 32. Quasi-Static Source Current (VDD=8V)
Figure 33. Quasi-Static Sink Current (VDD=8V)
VDD
FAN3111
4.7µF
Ceramic
470µF
Al. El.
Current Probe
LECROY AP015
IN
1kHz
IOUT
1µF
Ceramic
VOUT
CLOAD
47nF
Figure 34. Quasi-Static IOUT / VOUT Test Circuit
© 2008 Fairchild Semiconductor Corporation
FAN3111 • Rev. 1.0.1
11
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet FAN3111.PDF ] | |
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