ISL6174IRZ【PDF 5/16 页】IC CIRC BREAKER DUAL LV 28-QFN

5

FN6830.0

December 19, 2008

Absolute Maximum Ratings

Thermal Information

VBIAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.5V

GTx, CPQ+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +12V

ENx

, SNSx, PGx

, FLTx, VSx, TCBx, UVx,

SSx, CPQ-, CPVDD. . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 5.5VDC

Output Current . . . . . . . . . . . . . . . . . . . . . . .Short Circuit Protected

Thermal Resistance (Typical, Notes 1, 4) ?/DIV>

JA

(癈/W) ?/DIV>

JC

(癈/W)

5x5 QFN Package . . . . . . . . . . . . . . . .

42

12.5

Maximum Storage Temperature Range. . . . . . . . . .-65癈 to +150癈

For recommended soldering conditions, see Tech Brief TB389.

(QFN - Leads Only)

Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

Operating Conditions

VBIAS / VIN1 Supply Voltage Range. . . . . . . . . . . +2.25V to +3.63V

Temperature Range (T

A

)

-40癈 to +85癈

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and

result in failures not covered by warranty.

NOTES:

1. ?/DIV>

JA

is measured in free air with the component mounted on a high effective thermal conductivity test board with direct attach features. See

Tech Brief TB379.

2. All voltages are relative to GND, unless otherwise specified.

3. 1V (min) on the BIAS pin required for FLT

to be valid.

4. For ?/DIV>

JC

, the case temp location is the center of the exposed metal pad on the package underside..

Electrical Specifications V

DD

= 2.5V to +3.3V, V

S

= 1V,T

A

= T

J

= -40癈 to +85癈, Unless Otherwise Specified. Parameters with MIN

and/or MAX limits are 100% tested at +25癈, unless otherwise specified.

Temperature limits established by characterization and are not production tested.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

CIRCUIT BREAKER CONTROL

ISET Current

I

SET

R

OCREF

= 14.7k?/SPAN>

19

20

21

礎

Over Current Comparator Offset Voltage

Vio

V

VS

- V

SNS

with I

OUT

= 0A

-1.25

-0.05

1.25

mV

Circuit Breaker Threshold Voltage

V

CRVTH

V

VS

- V

SNS

at FLT

assertion,

R

ISET

= 1.0k, I

SET

= 20礎

19.7

mV

TCB Threshold Voltage

V

CT_Vth

Peak Voltage

1.128

1.178

1.202

V

TCB Charging Current

I

CT

9

10

11

礎

TCB Default Delay

T

CT

TCB = Open

3

祍

GATE DRIVE

GATE Response Time from WOC (Open)

pd_woc_open

GATE open

100mV of overdrive on the WOC

comparator

3

ns

GATE Response Time from WOC

(Loaded)

pd_woc_load

GATE = 1nF

100mV of overdrive on the WOC

comparator

100

ns

GATE Turn-On Current

IGATE_on

GATE = 2V, V

VS

= 2V, V

SNS

= 2.1V

21

24

27

礎

GATE Turn-Off Current

IGATE_off

OC or WOC Turn-off Gate Current

100

mA

GATE Voltage

V

GATE

Bias = 2.5V (Figure 5, 6)

8.2

8.8

9.3

V

2.1 < Bias < 2.5 (Figure 5, 6)

7

V

BIAS

Supply Current

I

BIAS

V

BIAS

= 3.3V

6

9.3

12

mA

POR Rising Threshold

VIN_POR_L2H

1.85

2.02

2.12

V

POR Falling Threshold

VIN_POR_H2L

1.80

1.98

2.10

V

POR Threshold Hysteresis

VIN_POR_HYS

5

33

mV

ISL6174

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