ISL97646 View Datasheet(PDF) - Intersil

Part Name

Description

View to exact match

ISL97646

Boost + LDO + VON Slice + VCOM

Intersil 

ISL97646

Absolute Maximum Ratings

Lx to GND, AGND and PGND . . . . . . . . . . . . . . . . . . . . -0.5 to +25V

VDD2, OUT, NEG and POS

to GND, AGND and PGND . . . . . . . . . . . . . . . . . . . . . -0.5 to +25V

VDD1, VGH and VGH_M

to GND, AGND and PGND . . . . . . . . . . . . . . . . . . . . . -0.5 to +32V

Differential Voltage Between POS and NEG . . . . . . . . . . . . . . . ±6V

Voltage Between GND, AGND and PGND . . . . . . . . . . . . . . . ±0.5V

All Other Pins to GND, AGND and PGND . . . . . . . . . . -0.5 to +6.5V

Input, Output, or I/O Voltage . . . . . . . . . . . GND -0.3V to VIN + 0.3V

Recommended Operating Conditions

Input Voltage Range, VS . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V

Boost Output Voltage Range, AVDD . . . . . . . . . . . . . . . . . 8V to 20V

Input Capacitance, CIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22µF

Boost Inductor, L1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3µH to 10µH

LDO Output Capacitance. . . . . . . . . . . . . . . . . . . . . . .2.2µF to 10µF

Output Capacitance, COUT . . . . . . . . . . . . . . . . . . . . . . . . . . 2x22µF

Operating Ambient Temperature Range . . . . . . . . . .-40°C to +85°C

Operating Junction Temperature . . . . . . . . . . . . . . .-40°C to +125°C

Thermal Information

Thermal Resistance

θJA (°C/W) θJC (°C/W)

4x4 QFN Package (Notes 1, 2) . . . . . .

39

2.5

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

Maximum Continuous Junction Temperature . . . . . . . . . . . +125°C

Power Dissipation

TA ≤ +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.44W

TA = +70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.34W

TA = +85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.98W

TA = +100°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.61W

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

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

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. θJA 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. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.

Electrical Specifications VIN1 = VIN2 = ENABLE = 5V, VDD1 = VDD2 = 14V, VGH = 25V, AVDD = 10V, TA = -40°C to +85°C

Unless Otherwise Noted.

SYMBOL

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

GENERAL

VS

VIN1, VIN2 Input Voltage Range

See separate LDO specifications on 2.7

5.0

5.5

V

page 4

IS_DIS

Sum of VIN1, VIN2 Supply Currents ENABLE = 0V

when Disabled

0.2

2

µA

IS

Sum of VIN1, VIN2 Supply Currents ENABLE = 5V, LX not switching, LDO

1

mA

not loaded

UVLO

Undervoltage Lockout Threshold VIN2 Rising

VIN2 Falling

OTR

Thermal Shutdown Temperature Temperature Rising

OTF

Temperature Falling

LOGIC INPUT CHARACTERISTICS - ENABLE, VFLK, FREQ, VDPM

2.3

2.45

2.6

V

2.2

2.35

2.5

V

140

°C

100

°C

VIL

Low Voltage Threshold

VIH

High Voltage Threshold

RIL

Pull-Down Resistor

STEP-UP SWITCHING REGULATOR

Enabled, Input at VIN2

2.2

150

250

0.8

V

V

400

kΩ

AVDD

ΔAVDD/ΔIOUT

ΔAVDD/ΔVIN

ACCAVDD

Output Voltage Range

Load Regulation

Line Regulation

Overall Accuracy (Line, Load,

Temperature)

VIN*1.25

50mA < ILOAD < 250mA

0.2

ILOAD = 150mA, 3.0 < VIN1 < 5.5V

0.15

10mA < ILOAD < 300mA, 3.0 < VIN1

-3

< 5.5V, 0°C < TA < +85°C

20

V

%

0.25

%/V

3

%

3

FN6265.1

December 14, 2007

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