ISL6277HRZ datasheet(11/37 Pages) RENESAS

11 / 37 page

ISL6277

FN8270 Rev 1.00

Page 11 of 37

Mar 8, 2012

Absolute Maximum Ratings

Thermal Information

Supply Voltage, VDD, VDDP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V

Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +28V

Boot Voltage (BOOT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V

Boot to Phase Voltage (BOOT-PHASE) . . . . . . . . . . . . . . . . -0.3V to +7V(DC)

-0.3V to +9V (<10ns)

Phase Voltage (PHASE) . . . . . . . . . . . . . . . . -7V (<20ns Pulse Width, 10µJ)

UGATE Voltage (UGATE) . . . . . . . . . .PHASE - 0.3V (DC) to BOOTPHASE - 5V

(<20ns Pulse Width, 10µJ) to BOOT LGATE Voltage

-2.5V (<20ns Pulse Width, 5µJ) to VDD + 0.3V

All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VDD + 0.3V)

Open Drain Outputs, PGOOD, PGOOD_NB, VR_HOT_L. . . . . . . -0.3V to +7V

Thermal Resistance (Typical)

JA (°C/W)

JC (°C/W)

48 Ld QFN Package (Notes 4, 5) . . . . . . . .

3.5

Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C

Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C

Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . .+150°C

Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

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

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

Recommended Operating Conditions

Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+5V ±5%

Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 25V

Ambient Temperature

HRZ . . . . . . . . . . . . . . . . . . . .-10°C to +100°C

IRZ . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-10°C to +125°C

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:

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.

5. For

JC, the “case temp” location is the center of the exposed metal pad on the package underside.

Electrical Specifications Operating Conditions: VDD =5V,TA = -10°C to +100°C (HRZ), TA = -40°C to +85°C (IRZ), fSW= 300kHz, unless

otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +100°C.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 6)

TYP

MAX

(Note 6)

UNITS

INPUT POWER SUPPLY

+5V Supply Current

IVDD

ENABLE = 1V

ENABLE = 0V

µA

Battery Supply Current

IVIN

ENABLE = 0V

µA

VIN Input Resistance

RVIN

ENABLE = 1V

620

kΩ

POWER-ON-RESET THRESHOLDS

VDD POR Threshold

VDD_PORr

VDD rising

4.35

4.5

VDD_PORf

VDD falling

4.00

4.15

SYSTEM AND REFERENCES

System Accuracy

HRZ

%Error (VOUT)

No load; closed loop, active mode range,

VID = 0.75V to 1.55V

-0.5

+0.5

VID = 0.25V to 0.74375V

-10

+10

IRZ

%Error (VOUT)

No load; closed loop, active mode range,

VID = 0.75V to 1.55V

-0.8

+0.8

VID = 0.25V to 0.74375V

-12

+12

Maximum Output Voltage

VOUT(max)

VID = [00000000]

1.55

Minimum Output Voltage

VOUT(min)

VID = [11111111]

0.0

CHANNEL FREQUENCY

Nominal Channel Frequency

fSW(nom)

280

300

320

kHz

Adjustment Range

300

450

kHz

AMPLIFIERS

Current-Sense Amplifier Input Offset

HRZ

IFB = 0A

-0.15

+0.15

IRZ

IFB = 0A

-0.20

+0.20

Error Amp DC Gain

Av0

119

Error Amp Gain-Bandwidth Product

GBW

CL = 20pF

MHz

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