NCP5424D datasheet(4/20 Pages) ONSEMI

Part #	NCP5424D

Description	Dual Synchronous Buck Controller with Input Current Sharing

Download	20 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

Logo

4 / 20 page

NCP5424

http://onsemi.com

4

ELECTRICAL CHARACTERISTICS (0

°C < TA < 70°C; 0°C < TJ < 125°C; ROSC = 30.9 k, CCOMP1,2 = 0.1 µF,

10.8 V < VCC < 13.2 V; 10.8 V < BST < 20 V, CGATE(H)1,2 = CGATE(L)1,2 = 1.0 nF, VFB+2 = 1.0 V; unless otherwise specified.)

Characteristic

Test Conditions

Min

Typ

Max

Unit

Error Amplifier

VFB Bias Current

VFBX = 0 V

-

0.5

1.6

µA

VFB1(2) Input Range

Note 2

0

-

1.1

V

COMP1,2 Source Current

COMP1,2 = 1.2 V to 2.5 V; VFB1(- 2) = 0.8 V

15

30

60

µA

COMP1,2 Sink Current

COMP1,2 = 1.2 V; VFB1(- 2) = 1.2 V

15

30

60

µA

Reference Voltage 1(2)

COMP1 = VFB1; COMP2 = VFB- 2

0.980

1.000

1.020

V

COMP1,2 Max Voltage

VFB1(- 2) = 0.8 V

3.0

3.3

-

V

COMP1,2 Min Voltage

VFB1(- 2) = 1.2 V

-

0.25

0.35

V

Open Loop Gain

-

95

-

dB

Unity Gain Band Width

-

40

-

kHz

PSRR @ 1.0 kHz

-

70

-

dB

Transconductance

-

32

-

mmho

Output Impedance

-

2.5

-

M

Ω

Input Offset, Error Amp. 2

-

-3.0

0

3.0

mV

Error Amp. 2 Common Mode Range

Note 2

1.75

2.0

-

V

GATE(H) and GATE(L)

High Voltage (AC)

Measure: VCC - GATE(L)1,2;

BST - GATE(H)1,2; Note 2

-

0

0.5

V

Low Voltage (AC)

Measure:GATE(L)1,2 or GATE(H)1,2; Note 2

-

0

0.5

V

Rise Time

1.0 V < GATE(L)1,2 < VCC - 1.0 V

1.0 V < GATE(H)1,2 < BST - 1.0 V,

BST

≤ 14 V

-

20

50

ns

Fall Time

VCC - 1.0 > GATE(L)1,2 > 1.0 V

BST - 1.0 > GATE(H)1,2 > 1.0 V,

BST

≤ 14 V

-

15

50

ns

GATE(H) to GATE(L) Delay

GATE(H)1,2 < 2.0 V, GATE(L)1,2 > 2.0 V

BST

≤ 14 V

20

40

70

ns

GATE(L) to GATE(H) Delay

GATE(L)1,2 < 2.0 V, GATE(H)1,2 > 2.0 V;

BST

≤ 14 V

20

40

70

ns

GATE(H)1(2) and GATE(L)1(2)

pull-down.

Resistance to GND

Note 2

50

125

280

k

Ω

PWM Comparator

PWM Comparator Offset

VFB1(- 2) = 0 V; Increase COMP1,2 until

GATE(H)1,2 starts switching

0.30

0.40

0.50

V

Artificial Ramp

Duty cycle = 50%, Note 2

60

105

150

mV

Minimum Pulse Width

Note 2

-

300

ns

2. Guaranteed by design, not 100% tested in production.

Similar Part No. - NCP5424D

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP5424D	137Kb / 18P	Dual Synchronous Buck Controller with Input Current Sharing March, 2005 ??Rev. 4
	NCP5424DG	137Kb / 18P	Dual Synchronous Buck Controller with Input Current Sharing March, 2005 ??Rev. 4
	NCP5424DR2	137Kb / 18P	Dual Synchronous Buck Controller with Input Current Sharing March, 2005 ??Rev. 4
	NCP5424DR2G	137Kb / 18P	Dual Synchronous Buck Controller with Input Current Sharing March, 2005 ??Rev. 4

More results

Similar Description - NCP5424D

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP5424	137Kb / 18P	Dual Synchronous Buck Controller with Input Current Sharing March, 2005 ??Rev. 4
Semtech Corporation	SC2677B	547Kb / 19P	Dual Synchronous Voltage Mode Controller with Current Sharing Circuitry
Semtech Corporation	SC1176	601Kb / 23P	Dual Synchronous Voltage Mode Controller with Current Sharing Circuitry
Anpec Electronics Corop...	APW1175	247Kb / 10P	DUAL SYNCHRONOUS DC/DC CONTROLLER WITH CURRENT SHARING CONTROL
Semtech Corporation	SC2677B	382Kb / 19P	Dual Synchronous Voltage Mode Controller with Current Sharing Circuitry
	SC2677	163Kb / 9P	Dual Synchronous Voltage Mode Controller with Current Sharing Circuitry
	SC1176	384Kb / 23P	Dual Synchronous Voltage Mode Controller with Current Sharing Circuitry
International Rectifier	IRU3046	163Kb / 20P	DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
International Rectifier	IRU3047	141Kb / 19P	DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
Semtech Corporation	SC1175	348Kb / 20P	Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry

More results

NCP5424D Datasheet(PDF) 4 Page - ON Semiconductor

NCP5424D Datasheet(HTML) 4 Page - ON Semiconductor

Similar Part No. - NCP5424D

Similar Description - NCP5424D

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Datasheet Download

Link URL