UCC28221DRG4 datasheet(4/30 Pages) TI

Part #	UCC28221DRG4

Description	INTERLEAVED DUAL PWM CONTROLLER WITH PROGRAMMABLE MAX DUTY CYCLE

Download	30 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

Logo

4 / 30 page

UCC28220, UCC28221

SLUS544C − SEPTEMBER 2003 − REVISED OCTOBER 2007

4

www.ti.com

ELECTRICAL CHARACTERISTICS:

VDD = 12 V, 0.1-µF capacitor from VDD to GND, 0.1-µF capacitor from REF to GND, FOSC = 1 MHz, TA = −40°C to

105

°C, TA = TJ, (unless otherwise noted).

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

Reference

Output voltage

8 V < VDD < 14 V, ILOAD=0 mA to −10 mA

3.15

3.3

3.45

V

Output current

Outputs not switching; CNTRL = 0 V

10

mA

Ouput short circuit current

VREF = 0 V

−40

−20

−10

mA

VREF UVLO

2.55

3

3.25

V

Soft-Start

SS charge current

RCHG=10.2 k

Ω, SS = 0 V

−70

−100

−130

A

SS discharge current

RCHG=10.2 k

Ω, SS = 2 V

70

100

130

µA

SS initial voltage

LINEOV=2 V, LINEUV = 0 V

0.5

1

1.5

V

SS voltage at 0% dc

Point at which output starts switching

0.5

1.2

1.8

V

SS voltage ratio

75%

90%

100%

SS Max voltage

LINEOV = 0 V, LINEUV = 2 V

3

3.5

4

V

Oscillator and PWM

Output frequency

RCHG = 10.2 k

Ω, RDISCHG = 10.2 kΩ

450

500

550

kHz

Oscillator frequency

RCHG = 10.2 k

Ω, RDISCHG = 10.2 kΩ

900

1000

1100

kHz

Output maximum duty cycle

RCHG = 10.2 k

Ω, RDISCHG = 10.2 kΩ, measured at OUT1

and OUT2

73%

75%

77%

%

CHG voltage

2

2.5

3

V

DISCHG voltage

2

2.5

3

V

Slope Compensation

Slope

RSLOPE = 75 k

Ω, RCH = 66 kΩ, RDISCHG = 44 kΩ, Csx =

0 V to 0.5 V

140

200

260

mV/us

Channel matching

RSLOPE = 75 k

Ω, Csx = 0 V

0%

10%

Current Sense

CS1, CS2 bias current

CS1 = 0, CS2 = 0

−500

0

500

nA

Prop delay CSx to OUTx

CSx input 0 V to 1.5 V step

40

85

ns

CS1, CS2 sink current

CSx = 2 V

2.3

4.5

7

mA

CNTRL Section

Resistor ratio(1)

0.6

Ctrl input current

CTRL = 0 V and 3.3 V

−100

0

100

nA

Ctrl voltage at 0% dc

CSx = 0 V, Point at which output starts switching (checks

resistor ratio)

0.5

1.2

1.8

V

NOTES: (1). Ensured by design. Not 100% tested in production.

Similar Part No. - UCC28221DRG4

Manufacturer	Part #	Datasheet	Description
Texas Instruments	UCC28221D	373Kb / 24P	[Old version datasheet] INTERLEAVED DUAL PWM CONTROLLER WITH PROGRAMMABLE MAX DUTY CYCLE
	UCC28221D	918Kb / 32P	[Old version datasheet] INTERILEAVED DUAL PWM CONTROLLER
	UCC28221DG4	918Kb / 32P	[Old version datasheet] INTERILEAVED DUAL PWM CONTROLLER

More results

Similar Description - UCC28221DRG4

Manufacturer	Part #	Datasheet	Description
Texas Instruments	UCC28220	897Kb / 32P	[Old version datasheet] INTERLEAVED DUAL PWM CONTROLLER WITH PROGRAMMABLE MAX DUTY CYCLE
	UCC28220	373Kb / 24P	[Old version datasheet] INTERLEAVED DUAL PWM CONTROLLER WITH PROGRAMMABLE MAX DUTY CYCLE
	UCC28220-Q1	780Kb / 26P	[Old version datasheet] INTERLEAVED DUAL PWM CONTROLLER WITH PROGRAMMABLE MAXIMUM DUTY CYCLE
	UCC28220-Q1	940Kb / 27P	[Old version datasheet] INTERLEAVED DUAL PWM CONTROLLER WITH PROGRAMMABLE MAXIMUM DUTY CYCLE
	UCC1807	314Kb / 11P	[Old version datasheet] Programmable Maximum Duty Cycle PWM Controller
Vishay Siliconix	SI9118	174Kb / 11P	Programmable Duty Cycle Controller Rev. E, 16-May-11
	SI9118	187Kb / 11P	Programmable Duty Cycle Controller 01-Jan-2022
	SI9118	91Kb / 8P	Programmable Duty Cycle Controller Rev. B, 05 Apr-99
Texas Instruments	UCC1807-1	3Mb / 16P	[Old version datasheet] Programmable Maximum Duyt Cycle PWM Controller
Cherry Semiconductor Co...	CS52845	142Kb / 6P	Current Mode PWM Control Circuit with 50% Max Duty Cycle

More results

UCC28221DRG4 Datasheet(PDF) 4 Page - Texas Instruments

UCC28221DRG4 Datasheet(HTML) 4 Page - Texas Instruments

Similar Part No. - UCC28221DRG4

Similar Description - UCC28221DRG4

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Datasheet Download

Link URL