NCP3418A ON Semiconductor, NCP3418A Datasheet

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NCP3418A

Manufacturer Part Number
NCP3418A
Description
Dual Bootstrapped 12 V MOSFET Driver
Manufacturer
ON Semiconductor
Datasheet
www.DataSheet4U.com
NCP3418, NCP3418A
Dual Bootstrapped 12 V
MOSFET Driver with
Output Disable
optimized to drive the gates of both high−side and low−side power
MOSFETs in a synchronous buck converter. Each of the drivers is
capable of driving a 3000 pF load with a 25 ns propagation delay and a
20 ns transition time.
gate drive voltage can be optimized for the best efficiency. Internal,
adaptive nonoverlap circuitry further reduces switching losses by
preventing simultaneous conduction of both MOSFETs.
high as 30 V, with transient voltages as high as 35 V. Both gate outputs
can be driven low by applying a low logic level to the Output Disable
(OD) pin. An Undervoltage Lockout function ensures that both driver
outputs are low when the supply voltage is low, and a Thermal
Shutdown function provides the IC with overtemperature protection.
The NCP3418A is identical to the NCP3418 except that there is no
internal charge pump diode.
ADP3418 with the following advantages:
Features
May, 2004 − Rev. 10
The NCP3418 and NCP3418A are dual MOSFET gate drivers
With a wide operating voltage range, high or low side MOSFET
The floating top driver design can accommodate VBST voltages as
The NCP3418 is pin−to−pin compatible with Analog Devices
Faster Rise and Fall Times
Internal Charge Pump Diode Reduces Cost and Parts Count
Thermal Shutdown for System Protection
Integrated OVP
Internal Pulldown Resistor Suppresses Transient Turn On of Either
MOSFET
Anti Cross−Conduction Protection Circuitry
Floating Top Driver Accommodates Boost Voltages of up to 30 V
One Input Signal Controls Both the Upper and Lower Gate Outputs
Output Disable Control Turns Off Both MOSFETs
Complies with VRM 10.x Specifications
Undervoltage Lockout
Thermal Shutdown
Thermally Enhanced Package Available
Semiconductor Components Industries, LLC, 2004
1
8
†For information on tape and reel specifications,
8
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
NCP3418D
NCP3418DR2
NCP3418ADR2
NCP3418ADR2G
NCP3418PD
NCP3418PDR2
NCP3418APDR2
1
1
Device
ORDERING INFORMATION
CASE 751AC
PD SUFFIX
CASE 751
D SUFFIX
BST
SO−8 EP
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
V
PIN CONNECTIONS
OD
CC
http://onsemi.com
SO−8
IN
1
Package
SO−8 EP
SO−8 EP 2500 Tape & Reel
SO−8 EP 2500 Tape & Reel
SO−8
SO−8
SO−8
SO−8
Publication Order Number:
8
1
8
1
ALYW
3418
ALYW
2500 Tape & Reel
2500 Tape & Reel
2500 Tape & Reel
3418
8
DIAGRAMS
98 Units/Rail
98 Units/Rail
MARKING
Shipping
DRVH
SW
PGND
DRVL
NCP3418/D
8
1
8
1
3418A
ALYW
3418A
ALYW

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NCP3418A Summary of contents

Page 1

... An Undervoltage Lockout function ensures that both driver outputs are low when the supply voltage is low, and a Thermal Shutdown function provides the IC with overtemperature protection. The NCP3418A is identical to the NCP3418 except that there is no internal charge pump diode. The NCP3418 is pin−to−pin compatible with Analog Devices ...

Page 2

... BST Upper MOSFET Floating Bootstrap Supply. A capacitor connected between BST and SW pins holds this bootstrap voltage for the high−side MOSFET switched. The recommended capacitor value is between 100 nF and 1.0 mF. An external diode will be needed with the NCP3418A Logic−Level Input. This pin has primary control of the drive outputs. ...

Page 3

... DRVH and DRVL Control Input OD Output Disable PGND Ground NOTE: All voltages are with respect to PGND except where noted. NCP3418, NCP3418A Rating Standard (Note 3) Lead Free (Note 4) SO−8 (240 peak profile) SO−8 (260 peak profile) SO−8 EP (240 peak profile) SO−8 EP (260 peak profile) ...

Page 4

... AC specifications are guaranteed by characterization, but not production tested. 7. For propagation delays, “t ’’ refers to the specified signal going high; “t pdh 8. GBD: Guaranteed by design; not tested in production. Specifications subject to change without notice. NCP3418, NCP3418A = + +125 C unless otherwise noted ...

Page 5

... OD t pdlOD DRVH or DRVL Figure 2. Output Disable Timing Diagram pdlDRVL DRVL 90% 1.5 V DRVH−SW SW Figure 3. Nonoverlap Timing Diagram (timing is referenced to the 90% and 10% points unless otherwise noted) NCP3418, NCP3418A 90% fDRVL t 10 pdhDRVH rDRVH 90% 10% http://onsemi.com 5 t pdhOD 10% t pdlDRVH ...

Page 6

... LOAD CAPACITANCE (nF) Figure 6. Rise Time vs. Load Capacitance Figure 8. V NCP3418, NCP3418A APPLICATIONS INFORMATION Figure 5. DRVH Fall and DRVL Rise Times Figure 7. Fall Time vs. Load Capacitance ...

Page 7

... The NCP3418 and NCP3418A are single phase MOSFET drivers optimized for driving two N−channel MOSFETs in a synchronous buck converter topology. The NCP3418 features an internal diode, while the NCP3418A requires an external BST diode for the floating top gate driver. A single PWM input signal is all that is required to properly drive the high− ...

Page 8

... 0.25 (0.010 −Y− SEATING PLANE −Z− 0.25 (0.010 NCP3418, NCP3418A PACKAGE DIMENSIONS SOIC−8 D SUFFIX CASE 751−07 ISSUE 0.10 (0.004 SOLDERING FOOTPRINT 1.52 0.060 7.0 4.0 0.275 0.155 0.6 1.270 ...

Page 9

... PIN ONE LOCATION 0.25 TOP VIEW 0. 0.10 C SEATING PLANE A1 C SIDE VIEW H GAUGE PLANE 0.25 NCP3418, NCP3418A PACKAGE DIMENSIONS SOIC− SUFFIX CASE 751AC−01 ISSUE O C A−B DETAIL A F EXPOSED PAD 0. BOTTOM VIEW b ...

Page 10

... P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com NCP3418, NCP3418A N. American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2− ...

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