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ISL97650ARTZ-T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
1
FN9198.4
ISL97650
4-Channel Integrated LCD Supply
The ISL97650 represents a high power, integrated LCD
supply IC targeted at large panel LCD displays. The
ISL97650 integrates a high power, 2.6A boost converter for
A
VDD
generation, an integrated V
ON
charge pump, a V
OFF
charge pump driver, V
ON
slicing circuitry and a buck
regulator with 2A switch for logic generation.
The ISL97650 has been designed for ease of layout and low
BOM cost. Supply sequencing is integrated for both
A
VDD
-> V
OFF
-> V
ON
and A
VDD
/V
OFF
-> V
ON
sequences.
The TFT power sequence uses a separate enable to the
logic buck regulator for maximum flexibility.
Peak efficiencies are >90% for both the boost and buck while
operating from a 4V to 14V input supply. The current mode
buck offers superior line and load regulation. Available in the
36 Ld TQFN package, the ISL97650 is specified for ambient
operation over the -40°C to +105°C temperature range.
Pinout
ISL97650
(36 LD TQFN)
TOP VIEW
Features
• 4V to 14V Input Supply
•A
VDD
Boost Up to 20V, with Integrated 2.8A FET
• Integrated V
ON
Charge Pump, Up to 35V
OUT
•V
OFF
Charge Pump Driver, Down to -18V
•V
LOGIC
Buck Down to 1.2V, with Integrated 2A FET
• Automatic Start-up Sequencing
-A
VDD
-> V
OFF
-> V
ON
or A
VDD
/V
OFF
-> V
ON
- Independent Logic Enable
•V
ON
Slicing
• Thermally Enhanced 6x6 Thin QFN Package
• Pb-free (RoHS compliant)
Applications
• LCD Monitors (15”+)
• LCD-TVs (up to 40”)
• Notebook Displays (up to 16”)
• Industrial/Medical LCD Displays
THERMAL
PAD
27
26
25
24
23
22
21
36
35
34
33
32
10
11
12
13
14
1
2
3
4
5
6
7
LX1
LX2
CB
LXL
NC
VSUP
FBL
AGND1
PGND1
PGND2
VINL
NOUT
PGND3
FBN
VDC2
EN
FBB
VIN
CM1
AGND2
DRN
COM
POUT
C1-
8
9
20
19
15 31
16 30
VREF
FBP
C1+
C2-
CM2
CTL
DELB
ENL
17
18
C2+
NC
29
28
CDEL
VDC1
Ordering Information
PART NUMBER
(Note)
PART
MARKING
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL97650ARTZ-T* ISL976 50ARTZ 36 Ld 6x6
Thin TQFN
L36.6x6
ISL97650ARTZ-TK* ISL976 50ARTZ 36 Ld 6x6
Thin TQFN
L36.6x6
*Please refer to TB347 for details on reel specifications
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are 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.
Data Sheet April 17, 2009
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.
Copyright Intersil Americas Inc. 2006, 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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9
8
6
0
3
2
FN9198.4
April 17, 2009
Absolute Maximum Ratings (T
A
= +25°C) Thermal Information
Maximum Pin Voltages, all pins except below . . . . . . . . . . . . . . 6.5V
LX1, LX2, VSUP, NOUT, DELB, C2- . . . . . . . . . . . . . . . . . . . .24V
C1- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14V
VIN1, VINL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5V
DRN, COM, POUT, C1+, C2+ . . . . . . . . . . . . . . . . . . . . . . . . .36V
CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21V
Recommended Operating Conditions
Input Voltage Range, VIN 4V to 14V
Boost Output Voltage Range, A
VDD
+20V
V
ON
Output Range, V
ON
+15V to +32V
V
OFF
Output Range, V
OFF
-15V to -5V
Logic Output Voltage Range, V
LOGIC
+1.5V to +3.3V
Input Capacitance, C
IN
2x10µF
Boost Inductor, L1 3.3µH-10µH
Output Capacitance, C
OUT
2x22µF
Buck Inductor, L23.3µH to10µH
Operating Ambient Temperature Range -40°C to +105°C
Operating Junction Temperature -40°C to +125°C
Thermal Resistance
JA
(°C/W)
JC
(°C/W)
6x6 QFN Package (Notes 1, 2) . . . . . . 30 2.5
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range. . . . . . . . . .-65°C to +150°C
Power Dissipation
T
A
25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3W
T
A
= +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.8W
T
A
= +85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.3W
T
A
= +100°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.8W
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.
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. For
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications V
IN
= 12V, V
BOOST
= V
SUP
= 15V, V
ON
= 25V, V
OFF
= -8V, over-temperature from -40°C to +105°C, unless
otherwise stated. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested.
PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT
SUPPLY PINS
V
IN
Supply Voltage (VIN1) 4 12 14 V
V
INL
Logic Supply Voltage 4 12 14 V
V
SUP
Charge Pumps and V
ON
Slice Positive
Supply
420V
I
VIN
Quiescent Current into V
IN
Enabled, No switching 3 5 mA
Disabled 25 50 µA
I
INL
Logic Supply Current Enabled, No switching 0.25 2 mA
Disabled 1 25 µA
I
SUP
V
SUP
Supply Current Enabled, No Switching and VPout = V
SUP
1mA
Disabled 1 10 µA
VLOR Undervoltage Lockout Threshold V
DC
rising 3.85 4 V
VLOF Undervoltage Lockout Threshold V
DC
falling 3.3 3.45 V
V
REF
Reference Voltage T
A
= +25°C 1.18 1.205 1.225 V
1.177 1.205 1.228 V
F
OSC
Oscillator Frequency 1020 1200 1380 kHz
A
VDD
BOOST
D
MIN
Minimum Duty Cycle 20 25 %
D
MAX
Maximum Duty Cycle 84 %
ISL97650
3
FN9198.4
April 17, 2009
V
BOOST
Boost Output Range 1.25
*V
IN
20 V
I
BOOST
Boost Switch Current Current limit 2.6 3.2 3.8 A
EFF
BOOST
Peak Efficiency See graphs and component
recommendations
90+ %
r
DS(ON)
Switch On Resistance 160 300 m
V
BOOST
/V
IN
Line Regulation 5V < V
IN
< 13V 0.4 1.0 %/V
V
BOOST
/I
OUT
Load Regulation 100mA < load < 200mA 0.1 0.5 %
V
FBB
Boost Feedback Voltage T
A
= +25°C 1.192 1.205 1.218 V
1.188 1.205 1.222 V
ACC
BOOST
A
VDD
Output Accuracy T
A
= +25°C -1.5 1.5 %
tss Soft-Start Period for A
VDD
C
DEL
= 220nF 9.6 ms
V
LOGIC
BUCK
V
BUCK
Buck Output Voltage Output current = 0.5A 1.5 5.5 V
I
BUCK
Buck Switch Current Current limit 2.0 2.4 2.9 A
EFF
BUCK
Peak Efficiency See graphs and component
recommendations
92 %
R
DS-ONBK
Switch ON-Resistance 200 400 m
V
BUCK
/V
IN
Line Regulation 5V < V
IN
< 13V 0.1 1.0 %/V
V
BUCK
/I
OUT
Load Regulation 100mA < load < 500mA 0.2 1 %
V
FBL
FBL Regulation Voltage T
A
= +25°C 1.176 1.2 1.224 V
1.174 1.2 1.226 V
ACC
LOGIC
V
LOGIC
Output Accuracy T
A
= +25°C -2 2 %
tss
L
Soft-Start Period for V(Logic) C(VREF) = 220nF (Note - no soft-start if EN
asserted HIGH before ENB)
0.5 ms
NEGATIVE (V
OFF
) CHARGE PUMP
V
OFF
V
OFF
Output Voltage Range 2X Charge Pump -V
SUP
+1.4V
0V
ILoad_NCP_min External Load Driving Capability V
SUP
> 5V 30 mA
Ron(NOUT)H High-Side Driver ON-Resistance at
N
OUT
I(NOUT) = +60mA 10
Ron(NOUT)L Low-Side Driver ON-Resistance at
N
OUT
I(NOUT) = -60mA 5
Ipu(NOUT)lim Pull-Up Current Limit in N
OUT
V(NOUT) = 0V to V(SUP)-0.5V 60 270 mA
Ipd(NOUT)lim Pull-Down Current Limit in N
OUT
V(NOUT) = 0.36V to V(VSUP) -200 -60 mA
I(NOUT)leak Leakage Current in N
OUT
V(FBN) < 0 or EN = LOW -5 5 µA
V
FBN
FBN Regulation Voltage T
A
= +25°C 0.173 0.203 0.233 V
0.171 0.203 0.235 V
ACCN V
OFF
Output Accuracy
IOFF = 1mA,
T
A
= +25°C -3 +3 %
D_NCP_max Max Duty Cycle of the Negative Charge
Pump
50 %
Rpd(FBN)off Pull-Down Resistance, Not Active I(FBN) = 500µA 1.5 3.3 5.5 k
Electrical Specifications V
IN
= 12V, V
BOOST
= V
SUP
= 15V, V
ON
= 25V, V
OFF
= -8V, over-temperature from -40°C to +105°C, unless
otherwise stated. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested. (Continued)
PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT
ISL97650
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

ISL97650ARTZ-T

Mfr. #:
Buy ISL97650ARTZ-T
Manufacturer:
Renesas / Intersil
Description:
Display Drivers & Controllers ISL97650ARTZ-T 4-CH INTEGRTD LCD SUPY
Lifecycle:
New from this manufacturer.
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