900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Fairchild Semiconductor Electronic Components Datasheet

FAN3268 Datasheet

2A Low-Voltage PMOS-NMOS Bridge Driver

No Preview Available !

February 2009
FAN3268
2A Low-Voltage PMOS-NMOS Bridge Driver
Features
ƒ 4.5V to 18V Operating Range
ƒ Drives High-Side PMOS and Low-Side NMOS in
Motor Control or Buck Step-down Applications
ƒ Inverting Channel B Biases High-Side PMOS
Device Off (with internal 100kResistor) when
VDD is below UVLO Threshold
ƒ TTL Input Thresholds
ƒ 2.4A Sink / 1.6A Source at VOUT=6V
ƒ Internal Resistors Turn Driver Off If No Inputs
ƒ MillerDrive™ Technology
ƒ 8-Lead SOIC Package
ƒ Rated from –40°C to +125°C Ambient
Applications
ƒ Motor Control with PMOS / NMOS Half-Bridge
Configuration
ƒ Buck Converters with High-Side PMOS Device;
100% Duty Cycle Operation Possible
www.DataShƒeet4LUo.cgoicm-Controlled Load Circuits with High-Side
PMOS Switch
Description
The FAN3268 dual 2A gate driver is optimized to drive a
high-side P-channel MOSFET and a low-side N-channel
MOSFET in motor control applications operating from a
voltage rail up to 18V. The driver has TTL input
thresholds and provides buffer and level translation
functions from logic inputs. Internal circuitry provides an
under-voltage lockout function that prevents the output
switching devices from operating if the VDD supply
voltage is below the operating level. Internal 100k
resistors bias the non-inverting output low and the
inverting output to VDD to keep the external MOSFETs
off during startup intervals when logic control signals
may not be present.
The FAN3268 driver incorporates 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 FAN3268 has two independent enable pins that
default to on if not connected. If the enable pin for non-
inverting channel A is pulled low, OUTA is forced low; if
the enable pin for inverting channel B is pulled low,
OUTB is forced high. If an input is left unconnected,
internal resistors bias the inputs such that the external
MOSFETs are off.
Figure 1. Typical Motor Drive Application
© 2009 Fairchild Semiconductor Corporation
FAN3268 • Rev. 1.0.0
1
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

FAN3268 Datasheet

2A Low-Voltage PMOS-NMOS Bridge Driver

No Preview Available !

Ordering Information
Part Number
FAN3268TMX
Logic
Non-Inverting Channel and
Inverting Channel + Dual Enables
Input Threshold
TTL
Eco Status
RoHS
Packing Method
2,500 Units on
Tape & Reel
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Package Outline
Figure 2. Pin Configuration (Top View)
Thermal Characteristics(1)
Package
8-Pin Small Outline Integrated Circuit (SOIC)
ΘJL(2)
40
ΘJT(3)
31
ΘJA(4)
89
ΨJB(5)
43
ΨJT(6)
3
Units
°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
www.DataSheet4JUE.cSoDm51-7, 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 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.
© 2009 Fairchild Semiconductor Corporation
FAN3268 • Rev. 1.0.0
2
www.fairchildsemi.com


Part Number FAN3268
Description 2A Low-Voltage PMOS-NMOS Bridge Driver
Maker Fairchild Semiconductor
Total Page 16 Pages
PDF Download

FAN3268 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 FAN3268 2A Low-Voltage PMOS-NMOS Bridge Driver
Fairchild Semiconductor





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy