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PDF NCP81253 Data sheet ( Hoja de datos )
| Número de pieza | NCP81253 | |
| Descripción | 5V MOSFET Driver Compatible | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCP81253
5 V MOSFET Driver
Compatible with
Single-Phase IMVP8
Controllers
The NCP81253 is a high performance dual MOSFET gate driver in
a small 2 mm x 2 mm package, optimized to drive the gates of both
high−side and low−side power MOSFETs in a synchronous buck
converter. The driver outputs can be placed into a high−impedance
state via the tri−state PWM and EN inputs. The NCP81253 comes
packaged with an integrated boost diode to minimize external
components. A VCC UVLO function guarantees the outputs are low
when the supply voltage is low.
Features
• Space−efficient 2 mm x 2 mm DFN8 Thermally−enhanced Package
• VCC Range of 4.5 V to 5.5 V
• Internal Bootstrap Diode
• 5 V 3−stage PWM Input
• Diode Braking Capability via EN Mid−state
• Adaptive Anti−cross Conduction Circuit Protects against
Cross−conduction during FET Turn−on and Turn−off
• Output Disable Control Turns Off both MOSFETs via Enable Pin
• VCC Undervoltage Lockout
• These devices are Pb−free, Halogen−free/BFR−free and are RoHS
compliant
Typical Applications
• Power Solutions for Notebook and Desktop Systems
www.onsemi.com
1
DFN8
CASE 506AA
MARKING
DIAGRAM
1
CGMG
G
CG = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
PINOUT DIAGRAM
BST 1
PWM 2
EN 3
VCC 4
8 DRVH
FLAG
9
7 SW
6 GND
5 DRVL
(Top View)
ORDERING INFORMATION
Device
Package
Shipping†
NCP81253MNTBG DFN8
3000 / Tape &
(Pb−Free)
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2014
December, 2014 − Rev. 0
1
Publication Order Number:
NCP81253/D
1 page  
NCP81253
TYPICAL CHARACTERISTICS
1.2
1.1
1.0
0.9
0.8
0.7
−40 −20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
100
Figure 2. Standby Current vs. Temperature
(VCC = 5 V, EN = 5 V, PWM = 0 V)
4.7
40
35
30
25
20
15
10
5
0
100 200 300 400 500 600 700 800 900 1000
SWITCHING FREQUENCY (kHz)
Figure 3. Supply Current vs. Switching
Frequency (VCC = 5 V, Cload = 3 nF)
1.5
4.5 1.3
Rising
Rising
4.3 1.1
4.1 Falling 0.9 Falling
3.9
3.7
−40
−20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
Figure 4. VCC UVLO vs. Temperature
(EN = 5 V)
3.5
100
0.7
0.5
−40
−20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
Figure 5. PWM Low/Mid Thresholds vs.
Temperature (VCC = 5 V)
100
1.5
3.3 1.3
3.1 Rising 1.1 Rising
Falling
2.9 0.9 Falling
2.7
2.5
−40 −20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
Figure 6. PWM Mid/High Thresholds vs.
Temperature (VCC = 5 V)
100
0.7
0.5
−40 −20 0 20 40 60 80 100
AMBIENT TEMPERATURE (°C)
Figure 7. Enable Low/Mid Thresholds vs.
Temperature (VCC = 5 V)
www.onsemi.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NCP81253.PDF ] | |
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