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NCP3020A Datasheet PDF - ON Semiconductor

Part Number NCP3020A
Description Synchronous PWM Controller
Manufacturers ON Semiconductor 
Logo ON Semiconductor Logo 



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NCP3020A datasheet, circuit
NCP3020A, NCP3020B
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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 softstart. 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
SOIC8 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 SoftStart (NCP3020B – 4.4 ms)
Current Limit and Short Circuit Protection
Transconductance Amplifier with External Compensation
Input Undervoltage Lockout
Output Overvoltage and Undervoltage Detection
This is a PbFree 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
SOIC8 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
= PbFree Package
PIN CONNECTIONS
VCC
COMP
FB
GND
BST
HSDR
VSW
LSDR
ORDERING INFORMATION
Device
Package
Shipping
NCP3020ADR2G SOIC8 2500 / Tape & Reel
(PbFree)
NCP3020BDR2G SOIC8 2500 / Tape & Reel
(PbFree)
†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, 2010
March, 2010 Rev. 1
1
Publication Order Number:
NCP3020/D

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NCP3020A equivalent
NCP3020A, NCP3020B
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ELECTRICAL CHARACTERISTICS (40°C < TJ < +125°C, VCC = 12 V, for min/max values unless otherwise noted)
Characteristic
Conditions
Min Typ Max Unit
GATE DRIVERS AND BOOST CLAMP
HSDRV Pullup Resistance
VCC = 8 V, VBST = 7.5 V, VSW = GND
100 mA out of HSDR pin
5.0 11
HSDRV Pulldown Resistance
VCC = 8 V, VBST = 7.5 V, VSW = GND
100 mA into HSDR pin
2.0 5.0
LSDRV Pullup Resistance
VCC = 8 V, VBST = 7.5 V, VSW = GND
100 mA out of LSDR pin
5.0 9.0
LSDRV Pulldown Resistance
VCC = 8 V, VBST = 7.5 V, VSW = GND
100 mA into LSDR pin
1.0 3.0
HSDRV Falling to LSDRV Rising
Delay
VIN = 12 V, VSW = GND, VCOMP = 1.3 V
50 80
LSDRV Falling to HSDRV Rising
Delay
VIN = 12 V, VSW = GND, VCOMP = 1.3 V
60 80
Boost Clamp Voltage
THERMAL SHUTDOWN
VIN = 12 V, VSW = GND, VCOMP = 1.3 V
5.5 7.5
Thermal Shutdown
(Notes 4 and 7)
165
Hysteresis
(Notes 4 and 7)
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.
20
11.5
16
6.0
110
120
9.6
W
W
W
W
ns
ns
V
°C
°C
http://onsemi.com
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Information Total 23 Pages
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Featured Datasheets

Part NumberDescriptionManufacturers
NCP3020AThe function is Synchronous PWM Controller.ON Semiconductor
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NCP3020BThe function is Synchronous PWM Controller.ON Semiconductor
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