intersil ISL97653A DATA SHEET

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ISL97653A

Data Sheet December 6, 2007

5-Channel Integrated LCD Supply

The ISL97653A represents a fully integrated supply IC for
LCD-TV applications. With an input operating range of 4V to
14V, both commonly used LCD-TV input supplies, 5V and
12V, are supported. An A

supply up to 20V is generated

VDD

by a high-performance PWM BOOST converter with an
integrated 4.4A FET. V

is generated using an integrated

ON

charge pump with on-chip diodes and can be modulated using
an on-chip V

slice control circuit. V

ON

is generated using

OFF

an integrated charge pump controller . Addi tional ly, the chip
allows for two logic supplies. A buck regulator with an
included 2.5A high side switch is used for the main logic
output and an internal LDO controller can be used to generate
a second logic LDO output.

To facilitate production test, an integrated HVS circuit is
included which can provide high voltage stress of the LCD
panel.

An on-board temperature sensor is also provided for system
thermal management control.

The ISL97653A is packaged in a 40 Ld 6mmx6mm QFN
package and is specified for operation over the -40°C to
+105°C temperature range.

Ordering Information

FN6367.0

Features

• 5V to 14V Input Supply

• Integrated 4.4A Boost Converter

• Integrated VON Charge Pump and VON Slice Circuit

• Integrated V

Charge Pump Output

OFF

• Integrated 2.5A Buck Converter

• LDO Controller for an Additional Logic Supply

• High Voltage Stress (HVS) Test Mode

• Thermal Shutdown

• 40 Ld QFN (6mmx6mm) Package

• Pb-Free (RoHS Compliant)

Applications

•LCD-TVs

• Industrial/Medical LCD Displays

Pinout

ISL97653A

40 LD 6X6 QFN

TOP VIEW

PART NUMBER

(Note)

ISL97653AIRZ ISL97 653A 40 Ld 6 X6 QFN L40.6X6
ISL97653AIRZ-T* ISL97 653A 40 Ld 6 X 6 QFN

ISL97653AIRZ-TK* ISL97 653A 40 Ld 6 X 6 QFN

*Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ

special Pb-free material sets; molding compounds/die attach
materials and 100% matte tin plate PLUS ANNEAL - e3 termination
finish, which is RoHS compliant and compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J STD-020.

PART

MARKING

PACKAGE

(Pb-Free)

Tape and Reel

Tape and Reel

PKG.

DWG. #

L40.6X6

L40.6X6

PVIN2

CB

LXL1

LXL2

PGND3

PGND4

CM2

FBL

VL

VREF

LDO-CTL

LDO-FB

PVIN1

AGND

PROT

LX2

LX1

40

39 38 37 36 35 34 33 32 31

1

2

3

4

5

6

7

8

9

10

11 12 13 14 15 16 17 18 19 20

FBN

SUPN

NOUT

C1P

PGND5

C2P

C1N

PGND2

C2N

PGND1

SUPP

TEMP

FBP

30

COMP

29

FBB

28

RSET

27

HVS

26

EN

CDEL

25

CTL

24

DRN

23

COM

22

21

POUT

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

| Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

Copyright Intersil Americas Inc. 2007. All Rights Reserved

ISL97653A

Absolute Maximum Ratings (T

Maximum Pin Voltages, all pins except below. . . . . . . . . . . . . . 6.5V

LX1, LX2, SUPP, SUPN, NOUT, PROT, C1N, C2N . . . . . . . . .24V

PVIN1, PVIN2, LXL1, LXL2 . . . . . . . . . . . . . . . . . . . . . . . . . 16.8V

EN, CTL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5V

= +25°C) Thermal Information

A

Operating Ambient Temperature Range . . . . . . . . -40°C to +105°C

Operating Junction Temperature . . . . . . . . . . . . . . -40°C to +150°C

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

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

DRN, POUT, COM, C1P, C2P. . . . . . . . . . . . . . . . . . . . . . . . . .33V

CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21V

Recommended Operating Conditions

Input Voltage Range, VIN . . . . . . . . . . . . . . . . . . . . . . . . 4V to 14V

Input Capacitance, C
Boost Output Voltage Range, A
Output Capacitance, C

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

V

Output Range, VON . . . . . . . . . . . . . . . . . . . . . . +15V to +30V

ON

V

Output Range, V

OFF

Logic Output Voltage Range, V

Buck Inductor, L2. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3µH to 10µH

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.

Electrical Specifications V

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

SUPPLY PINS

V

IN

I

S

F

SW

V

REF

VLOR Undervoltage Lockout Threshold V
VLOF Undervoltage Lockout Threshold V

LOGIC SIGNALS HVS, EN, CTL

Logic Input High 2.0 V
Logic Input Low 0.4 V
Pull-down Resistance 130 174 215 kΩ

HVS, RSET

RSET RSET Pull-down Resistance HVS = HIGH 200 Ω
I

RSET

A

BOOST

VDD

DLIM Min Duty Cycle 8.5 12 %

V

BOOST

EFF

BOOST

V

FB

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .2x10µF

IN

. . . . . . . . . . . . . . . . . . . . . . . . . .3x22µF

OUT

. . . . . . . . . . . . . . . . . . . . . . .-15V to -5V

OFF

. . . . . . . . . . . . . . . . . . . . +20V

VDD

. . . . . . . . . . . .+1.5V to +3.3V

LOGIC

= 12V , V

IN

unless otherwise stated.

BOOST

= V

SUPN

Supply Voltage 4 14 V
Quiescent Current Enabled, no switching 4 5 mA

Switching Frequency 580 680 780 kHz
Reference Voltage TA = +25°C 1.190 1.215 1.240 V

Thermal Shutdown Temperature rising 150 °C
Thermal Shutdown Hysteresis 20 °C

RSET Leakage Current HVS = LOW, V

Max Duty Cycle 90 %
Boost Output Range 20 V
Boost Efficiency VIN = 12V, V
Boost Feedback Voltage TA = +25°C 1.203 1.215 1.227 V

= V

= 15V , VON = 25V , V

SUPP

= -8V , over temperature from -40°C to +105°C,

OFF

Disabled 2.7 3.5 mA

1.187 1.215 1.243 V

rising 3.4 3.55 3.7 V

L

falling 2.9 3.0 3.2 V

L

= 1.2V 0.4 µA

RSET

= 15V 90+ %

BOOST

1.198 1.215 1.232 V

2

FN6367.0

December 6, 2007

ISL97653A

Electrical Specifications V

= 12V , V

IN

unless otherwise stated. (Continued)

BOOST

= V

SUPN

= V

SUPP

= 15V , VON = 25V , V

= -8V , over temperature from -40°C to +105°C,

OFF

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

I

BOOST

R

DSON-BOOST

ΔV

BOOST

ΔV

BOOST

/ΔV
/ΔI

IN

OUT

Boost FET Current Limit 3.7 4.4 4.95 A
Switch On Resistance 93 200 mΩ
Line Regulation - Boost 0.08 0.15 %
Load Regulation - Boost Load 100mA to 200mA 0.004 1 %

LOGIC BUCK

EFF

BUCK

I

BUCK

R

DSON-BUCK

ΔV

/ΔI

LDO

V

FL

OUT

Buck Efficiency VIN = 5V, V

= 3.3V 90+ %

LOGIC

Buck FET Current Limit 1.9 4.0 A
Switch On Resistance 150 210 mΩ
Load Regulation - Buck Load 100mA to 500mA 0.5 1 %
Feedback Voltage TA = +25°C 1.195 1.215 1.235 V

1.189 1.215 1.241 V

V

CHARGE PUMP

ON

ILoad_PCP_min External Load Driving Capability V

= 24V (2X Charge Pump) 40 mA

ON

VON = 28V (3X Charge Pump) 40 mA

V

FBP

Feedback Voltage, ION = 1mA TA = +25°C 1.195 1.215 1.235 V

1.189 1.215 1.241 V

R

(VSUP_SW) ON Resistance of V

ON

R

(C1/2-)H High-Side Driver ON Resistance at

ON

(C1/2-)L Low-Side Driver ON Resistance at

R

ON

V

Load Reg VON Output Load Regulation ION = 10mA to 40mA +1 %

ON

C1- and C2-

C1- and C2-

V(diode) Internal Schottky Diode Forward Voltage

Input Switch I(switch) = +40mA 10 17 Ω

SUP

I(C1/2-) = +40mA 30 Ω

I(C1/2-) = -40mA 4 10 Ω

I(diode) = +40mA 700 800 mV

Drop

V

CHARGE PUMP

OFF

ILoad_NCP_min External Load Driving Capability SUPN>13.5V VOFF=-8V 100 120 mA
V

FBN

Feedback Voltage, I

= 10mA TA = +25°C 0.173 0.203 0.233 V

OFF

0.171 0.203 0.235 V

R

(NOUT)H High-Side Driver ON Resistance at

ON

R

(NOUT)L Low-Side Driver ON Resistance at

ON

NOUT

I(NOUT) = +60mA 10 Ω

I(NOUT) = -60mA 5 Ω

NOUT

V

Load Reg V

OFF

Output Load Reg I

OFF

= 10mA to 100mA, TA = +25°C 2.4 %

OFF

LDO Controller

I

DRVP

LDO-FB Feedback Voltage w/transistor load 1mA T

Sink Current V

= 1.1V, V

FBP

= +25°C 1.191 1.215 1.239 V

A

LDO_CTL

= 10V 12 15 mA

1.189 1.215 1.241 V

FAULT DETECTION THRESHOLDS

T_off Thermal Shut-Down (latched and reset

Temperature rising 150 °C

by power cycle or EN cycle)

Vth_A

(FBB) A

VDD

Boost Short Detection V(FBB) falling less than 0.9 V

VDD

3

FN6367.0

December 6, 2007

ISL97653A

Electrical Specifications V

= 12V , V

IN

unless otherwise stated. (Continued)

BOOST

= V

SUPN

= V

SUPP

= 15V , VON = 25V , V

= -8V , over temperature from -40°C to +105°C,

OFF

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

Vth_POUT (FBP) P
Vth_NOUT (FBN) N

V

Slice POSITIVE SUPPLY = V(POUT)

ON

I(POUT)_slice V

Charge Pump Short Detection V(FBP) falling less than 0.9 V

OUT

Charge Pump Short Detection V(FBN) rising more than 0.4 V

OUT

Slice Current from POUT Supply CTL = VDD, sequence complete 400 500 µA

ON

CTL = AGND, sequence complete 150 200 µA

R

(POUT-COM) ON Resistance between POUT-COM CTL = VDD, sequence complete 5 10 Ω

ON

R

(DRN-COM) ON Resistance between DRN-COM CTL = AGND, sequence complete 30 60 Ω

ON

RON_COM ON Resistance between DRN-COM and

200 260 400 Ω

PGND

PROT

I

PROT_ON

I

PROT_OFF

PROT Pull-Down Current or Resistance
when Enabled by the Start-U

PROT Pull-Up Current when Disabled V

V

> 0.9V 38 50 60 µA

PROT

V

< 0.9V 500 760 1000 Ω

PROT

< 20V 2 3 4 mA

PROT

4

FN6367.0

December 6, 2007

Typical Application Diagrams

ISL97653A

V

IN

C30

Optional

R21 75k

C0
10µF

M0

R22 75k

C2

4.7nF

220nF

220nF

C4

C5

C6

0.22µF

C7

4.7µF

C8

4.7nF

R2

0

C1

2.2µF

COMP

PGND1

PGND2

HVS

PROT

C1P

C1N

C2P

C2N

CTL

CDEL

PGND5

PVIN1
PVIN2

CM2

R20 10k

PGND3
PGND4

AGND

EN

VL

L

L1

6.8µH

30
32
33

27

HVS

26

SEQUENCING/FAULT CONTROL

36

15

16
17

18

24
25

VON SLICE

14

9

INTERNAL

REGULATOR

38
1

7

5
6

LDO CONTROLLER

37

TEMP SENSOR

BOOST

VON CP

V

CP

OFF

BUCK

D1

A

VDD

C3
22µF
x3

LX1

34

LX2

35

FBB

29

RSET

28

R3
55k

R4
5k

R5 20k

19

SUPP

21

POUT

V

R6

983k

20

FBP

470nF

R7, 50k

DRN

23

COM

22

12

SUPN

10

VREF
FBN

11

NOUT

13

R10

15

R11 40k

C22 0.1µF

C11

220nF

CB

2

C13

LXL1

3

LXL2

4

FBL

8

V

1µF

D4

LOGIC

D3

L

L2

6.8µH

R17

LDO-CTL

40
39

LDO-FB

TEMP

31

Q1

C9

R13

2k

R8
1k

C19

220nF

D2

R15

5.4k

R16
5k

ON

R9

1k

R12

328k

470nF

R14

1.2k

C12

C14

20µF

V

V

V

LOGIC

LOGIC2

R17
100k

OFF

C15

4.7µF

C16
10nF

5

FN6367.0

December 6, 2007

Typical Application Diagrams (Continued)

ISL97653A

FREQ

P

VIN1,2

CDEL

P

VIN1,2

N

CM1

FBB

VL

EN

OUT

FBN

GM AMPLIFIER

­+

V

REF

UVLO COMPARATOR

­+

0.75 V

REF

OSCILLATOR

REGULATOR

SUPN

­+

0.2V

UVLO COMPARATOR

­+

0.4V

RSET HVS PROT

HVS

LOGIC

680kHz

REFERENCE BIAS

SEQUENCE CONTROLLER

CURRENT

COMPARATOR

V

REF

AND

LIMIT

-

+

CURRENT LIMIT

THRESHOLD

SAWTOOTH

GENERATOR

SLOPE
COMPENSATION

Ε

VL

CURRENT AMPLIFIER

CONTROL

BUFFER

LOGIC

CURRENT

AMPLIFIER

CURRENT LIMIT

COMPARATOR

CONTROL

LOGIC

Ε

SLOPE
COMPENSATION

SAWTOOTH

GENERATOR

BUFFER

CURRENT LIMIT
THRESHOLD

GM AMPLIFIER

LX1
LX2

R

SENSE

-

+

V

REF

PGND1
PGND2

CB

LXL1
LXL2

CM2

FBL

FBP

0.75 V

V

REF

REF

­+

­+

SUPP

C1- C1+ C2+ C2-P

6

SUPP

OUT

DRN

LDO

CONTROL

LOGIC2

TEMP

SENSOR

P

OUT

CTL COM

LDO-CTL

LDO-FB

TEMP

FN6367.0

December 6, 2007