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PDF NCV3020BDR2G Data sheet ( Hoja de datos )
| Número de pieza | NCV3020BDR2G | |
| Descripción | Synchronous PWM Controller | |
| Fabricantes | ON Semiconductor | |
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NCP3020A, NCP3020B,
NCV3020A, NCV3020B
Synchronous PWM Controller
The NCP3020 is a PWM device designed to operate from a wide
input range and is capable of producing an output voltage as low as
0.6 V. The NCP3020 provides integrated gate drivers and an internally
set 300 kHz (NCP3020A) or 600 kHz (NCP3020B) oscillator. The
NCP3020 also has an externally compensated transconductance error
amplifier with an internally fixed soft−start. Protection features
include lossless current limit and short circuit protection, output
overvoltage protection, output undervoltage protection, and input
undervoltage lockout. The NCP3020 is currently available in a
SOIC−8 package.
Features
• Input Voltage Range from 4.7 V to 28 V
• 300 kHz Operation (NCP3020B – 600 kHz)
• 0.6 V Internal Reference Voltage
• Internally Programmed 6.8 ms Soft−Start (NCP3020B – 4.4 ms)
• Current Limit and Short Circuit Protection
• Transconductance Amplifier with External Compensation
• Input Undervoltage Lockout
• Output Overvoltage and Undervoltage Detection
• NCV Prefix for Automotive and Other Applications Requiring Site
and Change Controls
• This is a Pb−Free Device
VIN
CIN
CBST
VCC BST
HSDR
Q1
COMP
VSW
L0 Vout
RC
CC2
CC1 FB
LSDR
GND
Q2
RISET
RFB1
RFB2
C0
Figure 1. Typical Application Circuit
http://onsemi.com
8
1
SOIC−8 NB
CASE 751
MARKING DIAGRAM
8
3020x
ALYW
G
1
3020x
A
L
Y
W
G
= Specific Device Code
x = A or B
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
PIN CONNECTIONS
VCC
COMP
FB
GND
BST
HSDR
VSW
LSDR
ORDERING INFORMATION
Device
Package
Shipping†
NCP3020ADR2G SOIC−8 2500 / Tape & Reel
(Pb−Free)
NCP3020BDR2G SOIC−8 2500 / Tape & Reel
(Pb−Free)
NCV3020ADR2G SOIC−8 2500 / Tape & Reel
(Pb−Free)
NCV3020BDR2G SOIC−8 2500 / Tape & Reel
(Pb−Free)
†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, 2013
January, 2013 − Rev. 6
1
Publication Order Number:
NCP3020/D
1 page  
NCP3020A, NCP3020B, NCV3020A, NCV3020B
ELECTRICAL CHARACTERISTICS (−40°C < TJ < +125°C, VCC = 12 V, for min/max values unless otherwise noted)
Characteristic
Conditions
Min Typ Max
GATE DRIVERS AND BOOST CLAMP
HSDRV Pullup Resistance
TJ = 25°C, VCC = 8 V, VBST = 7.5 V, VSW = GND
5.0
11
20
100 mA out of HSDR pin
HSDRV Pulldown Resistance
TJ = 25°C, VCC = 8 V, VBST = 7.5 V, VSW = GND
100 mA into HSDR pin
2.0
5.0 11.5
LSDRV Pullup Resistance
TJ = 25°C, VCC = 8 V, VBST = 7.5 V, VSW = GND
5.0
9.0
16
100 mA out of LSDR pin
LSDRV Pulldown Resistance
TJ = 25°C, VCC = 8 V, VBST = 7.5 V, VSW = GND
1.0
3.0
6.0
100 mA into LSDR pin
HSDRV Falling to LSDRV Rising
Delay
VIN = 12 V, VSW = GND, VCOMP = 1.3 V
50 80 110
LSDRV Falling to HSDRV Rising
Delay
VIN = 12 V, VSW = GND, VCOMP = 1.3 V
60 80 120
Boost Clamp Voltage
THERMAL SHUTDOWN
VIN = 12 V, VSW = GND, VCOMP = 1.3 V
5.5 7.5 9.6
Thermal Shutdown
Hysteresis
(Notes 4 and 7)
(Notes 4 and 7)
− 165 −
− 20 −
4. Guaranteed by design.
5. The voltage sensed across the high side MOSFET during conduction.
6. This assumes 100 pF capacitance to ground on the COMP Pin and a typical internal Ro of > 10 MW.
7. This is not a protection feature.
Unit
W
W
W
W
ns
ns
V
°C
°C
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5
5 Page 
NCP3020A, NCP3020B, NCV3020A, NCV3020B
0.75 V (vref *125%)
0.6 V (vref *100%)
0.45 V (vref *75%)
FB Voltage
Latch off
Reinitiate Softstart
Softstart Complete
Figure 24. Powerup Sequence and Overvoltage Latch
0.75 V (vref *125%)
0.6 V (vref *100%)
0.45 V (vref * 75%)
FB Voltage
Latch off
Reinitiate Softstart
Softstart Complete
Figure 25. Powerup Sequence and Undervoltage Soft−Start
http://onsemi.com
11
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| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet NCV3020BDR2G.PDF ] | |
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