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PDF NCP81063 Data sheet ( Hoja de datos )
| Número de pieza | NCP81063 | |
| Descripción | Synchronous Buck MOSFET Drivers | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCP81063
Product Preview
Synchronous Buck MOSFET
Drivers
The NCP81063 is a high−performance dual MOSFET gate driver
in a small 3 mm x 3 mm package, optimized to drive the gates of both
high−side and low−side power MOSFETs in a synchronous buck
converter. A zero−current detection feature allows for a
high−efficiency solution even at light load conditions. VCC UVLO
ensures the MOSFETs are off when supply voltages are low. A
bi−directional Enable pin provides a fault signal to the controller
when a UVLO fault is detected.
www.onsemi.com
1
DFN8
MN SUFFIX
CASE 506BJ
Features
• Space−efficient 3 mm x 3 mm DFN8 Thermally−enhanced Package
• VCC Range of 4.5 V to 13.2 V
• Integrated Bootstrap Diode
• 5 V 3−stage PWM input
• Zero Current Detect Function Provides Power Saving Operation
During Light Load Conditions
• Bi−directional Enable Feature Pulls Enable Pin Low During a
UVLO Fault
• Output Disable Control Turns Off Both MOSFETs
• VCC Undervoltage Lockout
• Adaptive Anti−cross Conduction Circuit Protects Against
Cross−conduction During FET Turn−on and Turn−off
• Direct Interface to NCP6151 and Other Compatible PWM
Controllers
• Thermally Enhanced Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
• Power Solutions for Notebook and Desktop Systems
MARKING DIAGRAM
1
81063
ALYWG
G
81063 = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package Shipping†
NCP81063MNTXG
DFN8
3000 /
(Pb−Free) Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2016
June, 2016 − Rev. P1
1
Publication Order Number:
NCP81063/D
1 page  
NCP81063
Table 4. ELECTRICAL CHARACTERISTICS (Unless otherwise stated: −10°C < TA < +125°C; 4.5 V < VCC < 13.2 V,
4.5 V < BST−SWN < 13.2 V, 4.5 V < BST < 30 V, 0 V < SWN < 21 V)
Parameter
Test Conditions
Min. Typ. Max.
LOW SIDE DRIVER (VCC = 12 V)
Output Impedance, Sinking Current
0.7 1.5
DRVL Rise Time trDRVL
DRVL Fall Time tfDRVL
DRVL Turn−Off Propagation Delay
tpdlDRVL
CLOAD = 3 nF
CLOAD = 3 nF
CLOAD = 3 nF
16 35
11 20
35
DRVL Turn−On Propagation Delay
tpdhDRVL
CLOAD = 3 nF
8.0 30
DRVL Pull Down Resistance
DRVL to PGND, VCC = PGND
37.5
LOW SIDE DRIVER (VCC = 5 V)
Output Impedance, Sourcing Current
2.5
Output Impedance, Sinking Current
1.0
DRVL Rise Time trDRVL
DRVL Fall Time tfDRVL
DRVL Turn−Off Propagation Delay
tpdlDRVL
CLOAD = 3 nF
CLOAD = 3 nF
CLOAD = 3 nF
30
22
27
DRVL Turn−On Propagation Delay
tpdhDRVL
CLOAD = 3 nF
12
DRVL Pull Down Resistance
DRVL to PGND, VCC = PGND
37.5
EN INPUT
Input Voltage High
2.0
Input Voltage Low
1.0
Hysteresis
500
Normal Mode Bias Current
−1 1
Enable Pin Sink Current
4 30
Propagation Delay Time
20 40
SW Node
SW Node Leakage Current
20
Zero Cross Detection Threshold Voltage SW to −20 mV, ramp slowly until BG goes off
(Start in DCM mode) (Note 2)
−3
Units
W
ns
ns
ns
ns
kW
W
W
ns
ns
ns
ns
kW
V
V
mV
mA
mA
ns
mA
mV
Table 5. DECODER TRUTH TABLE
PWM INPUT
PWM High
PWM Mid
PWM Mid
PWM Low
2. Guaranteed by design; not production tested.
ZCD
ZCD Reset
Positive current through the inductor
Zero current through the inductor
ZCD Reset
DRVL
Low
High
Low
High
DRVH
High
Low
Low
Low
www.onsemi.com
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet NCP81063.PDF ] | |
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