NCP81278MNTXG datasheet(7/13 Pages) ONSEMI

Part #	NCP81278MNTXG

Description	Compact 2-Phase Synchronous Buck Controller with Integrated Gate Drivers and PWM VID Interface

Download	13 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

Logo

7 / 13 page

NCP81278

www.onsemi.com

7

ELECTRICAL CHARACTERISTICS (VIN = 12 V, VPVCC = 5 V, VREFIN = 1.0 V, VPSI = 1.8 V, typical values are referenced to

TA = TJ = 25°C, Min and Max values are referenced to TA = TJ = −40°C to 100°C. unless other noted.)

Characteristics

Units

Max

Typ

Min

Symbol

Test Conditions

POWER SAVE INPUT

Low Threshold

PS2: 1−Phase Auto CCM/DCM Mode

VlowPSI

0.3

V

Internal Pull High Resistance

PSI to internal 2.0 V

110

k

W

Internal Pull Low Resistance

PSI to GND

90

k

W

SOFT START and PGOOD

Vout Startup Delay

From EN to Vout Start up (Note 8)

250

ms

Vout Startup Slew Rate

(Note 8)

0.643

V/ms

PGOOD Startup Delay

From EN to PGOOD assertion

2.0

ms

PGOOD Shutdown Delay

From EN to PGOOD de−assertion

125

ns

PGOOD Low Voltage

IPGOOD= 4 mA (sink)

VlPGOOD

−

0.3

V

PGOOD Leakage Current

PGOOD = 5 V

IlkgPGOOD

−

1.0

mA

PROTECTION

Current Limit Threshold

Measured from GND to

PHx

(RILMT (1%) is

connected from COMP

to GND)

RILMT = open

VOCTH

80

91

102

mV

RILMT = 75.0 k

100

112

124

RILMT = 56.2 k

123

137

151

RILMT = 33.2 k

164

183

201

RILMT = 11 k

OCP is disabled

−

Source Current of OCP Programming

Source out COMP pin

IILMT

9.5

10

10.5

mA

Fast Under Voltage Protection (FUVP)

Threshold

Voltage from FB to GND

0.15

0.2

0.25

V

Fast Under Voltage Protection (FUVP)

Delay

(Note 8)

1.0

ms

Slow Under Voltage Protection (SUVP)

Threshold

Voltage from COMP to GND

3.0

V

Slow Under Voltage Protection (SUVP)

Delay

(Note 8)

50

ms

Over Voltage Protection (OVP)

Threshold

Voltage from FB to GND

1.85

2.0

2.15

V

Over Voltage Protection (OVP) Delay

(Note 8)

1.0

ms

Over Temperature Protection (OTP)

Threshold

(Note 8)

Tsd

140

150

°C

Recovery Temperature Threshold

(Note 8)

Trec

125

°C

Over Temperature Protection (OTP)

Delay

(Note 8)

125

ns

OUTPUT DISCHARGE

Output Discharge Resistance per Phase

Measured from PHx to GND when EN is

low (Note 8)

Rdischrg

5

k

W

PWM−VID BUFFER

Input High Threshold

VhighVID

1.5

V

Input Mid Voltage level

VmidVID

0.6

1.2

V

Input Low Threshold

VlowVID

0.3

V

Internal Pull High Resistance in VID Pin

VID to internal 2.0 V

110

k

W

Internal Pull Low Resistance in VID Pin

VID to GND

90

k

W

3−State Shut−Off Time

TD_HOLD−

OFF

350

ns

Buffer Output Rise Time

Tr

3

ns

8. Guaranteed by design, not tested in production.

Similar Part No. - NCP81278MNTXG

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP81274	250Kb / 26P	Phase Buck Controller September, 2016 ??Rev. 11
	NCP81274	214Kb / 26P	Phase Buck Controller June, 2017 ??Rev. 14
	NCP81274MNTXG	250Kb / 26P	Phase Buck Controller September, 2016 ??Rev. 11
	NCP81274MNTXG	214Kb / 26P	Phase Buck Controller June, 2017 ??Rev. 14
	NCP81274	214Kb / 26P	Phase Buck Controller June, 2017 ??Rev. 14

More results

Similar Description - NCP81278MNTXG

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP5383	399Kb / 15P	2 Phase Buck Controller with Integrated Gate Drivers and AVP December, 2007 - Rev. 3
	NCP5378	208Kb / 18P	Single Phase Synchronous Buck Controller with Integrated Gate Drivers and Programmable DAC October, 2009 ??Rev. 1
	NCP5378MNR2G	208Kb / 18P	Single Phase Synchronous Buck Controller with Integrated Gate Drivers and Programmable DAC October, 2009 ??Rev. 1
Intersil Corporation	ISL6322G	638Kb / 39P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers, I2C Interface and Phase Dropping
Renesas Technology Corp	ISL6322G	1Mb / 39P	Two-Phase Buck PWM Controller with Integrated MOSFET Drivers, I2C Interface, and Phase Dropping
ON Semiconductor	NCP5331	424Kb / 38P	Two-Phase PWM Controller with Integrated Gate Drivers June, 2003 - Rev. 11
	NCP5331	431Kb / 36P	Two-Phase PWM Controller with Integrated Gate Drivers March, 2005 ??Rev. 12
	NCP5383	15Kb / 1P	Two Phase Buck Controller with Integrated Gate Drivers and AVP 3/15/2007
Renesas Technology Corp	ISL8105	1Mb / 16P	5V or 12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers
Texas Instruments	LM3754	1Mb / 47P	[Old version datasheet] Scalable 2-Phase Synchronous Buck Controller with Integrated FET Drivers and Linear Regulator Controller

More results

NCP81278MNTXG Datasheet(PDF) 7 Page - ON Semiconductor

NCP81278MNTXG Datasheet(HTML) 7 Page - ON Semiconductor

Similar Part No. - NCP81278MNTXG

Similar Description - NCP81278MNTXG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13

Datasheet Download

Link URL