IR3080PBF datasheet(3/41 Pages) IRF

3 / 41 page

IR3080

PbF

ELECTRICAL SPECIFICATIONS

Unless otherwise specified, these specifications apply over: 9.5V ≤ VCC ≤ 14V, 2.0V ≤ VIDPWR ≤ 5.5V and 0

oC ≤

TJ ≤ 100

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

VDAC Reference

System Set-Point Accuracy

-0.3V ≤ VOSNS- ≤ 0.3V, Connect FB to

EAOUT, Measure V(EAOUT) –

V(VOSNS-) deviation from Table 1.

Applies to all VID codes.

0.5

Source Current

RROSC = 41.9kΩ

µA

Sink Current

RROSC = 41.9kΩ

µA

VID Input Threshold

500

600

700

VID Pull-up Resistors

500

700

1000

Ω

Regulation Detect Comparator

Input Offset

-5

Regulation Detect to EAOUT

Delay

130

200

BBFB to FB Bias Current

Ratio

0.95

1.00

1.05

µA/µA

VID 11111x Blanking Delay

Measure time until PWRGD drives low

800

VID Step Down Detect

Blanking Time

Measure from VID inputs to EAOUT

1.7

µs

VID Down BB Clamp Voltage

Percent of VDAC voltage

VID Down BB Clamp Current

3.5

6.2

Error Amplifier

Input Offset Voltage

Connect FB to EAOUT, Measure

V(EAOUT) – V(DAC). from Table 1.

Applies to all VID codes and -0.3V ≤

VOSNS- ≤ 0.3V. Note 2

-3

FB Bias Current

RROSC = 41.9kΩ

-31

-29.5

-28

µA

DC Gain

Note 1

100

105

Gain-Bandwidth Product

Note 1

MHz

Source Current

0.4

0.6

0.8

Sink Current

0.7

1.2

1.7

Max Voltage

VBIAS–VEAOUT (referenced to VBIAS)

125

250

375

Min Voltage

Normal operation or Fault mode

100

150

VDRP Buffer Amplifier

Input Offset Voltage

V(VDRP) – V(IIN), 0.8V ≤ V(IIN) ≤ 5.5V

-8

Input Voltage Range

0.8

5.5

Bandwidth (-3dB)

Note 1

MHz

Slew Rate

µs

IIN Bias Current

-2.0

-0.75

µA

Page 3

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