DATA SHORT
To request the full datasheet, please visit
www.intersil.com/products/isl98602
ISL98602
5 Channel DC/DC Converter + V
ON
Slice + Power Good
The ISL98602 represents a high-power, integrated LCD supply IC
targeted at large panel LCD displays. The ISL98602 integrates a
high-power boost converter for AVDD generation, V
ON
and V
OFF
charge pump drivers, one synchronous buck regulator, and one
synchronous buck controller for two logic voltages. The V
ON
slicing circuitry and power good function are also included.
Operating at 1.3MHz, the AVDD boost converter features a 5.5A
boost FET. Feedback is taken from the far side of the delay FET for
improving regulation. The OVP circuit protects output side
components.
The logic synchronous buck converter features two 2.3A FETs
operating at 1.3MHz internal clock. The output voltage is set by
the IC internally or with a feedback resistor. The soft-start circuitry
is also integrated with the buck.
The second logic voltage is generated from a synchronous buck
converter with MOSFET controllers. The overcurrent protection is
also integrated with the buck.
The charge pump of V
ON
and V
OFF
uses the full switching
frequency and integrates the driver for high current capability.
V
ON
is further processed through an integrated V
ON
slice circuit in
order to reduce flicker.
Alternative fixed voltages at the boost, Buck1, Buck2, V
ON
charge
pump, and V
OFF
charge pump are available in ISL98602.
FN7699
Rev 3.00
March 7, 2012
Features
• 9.5V to 15.0V Input Supply
• 1.3MHz Switching Frequency
• 5.5A Integrated Boost for Up to 19V A
VDD
• V
ON
Charge Pump, Up to 36V and 120mA
• V
OFF
Charge Pump, Down to -10V and 120mA
• Synchronous Buck1 for 3.3V/2.5V with 2.0A Peak FET
• Synchronous Buck2 Controller Output from 0.9V to 2.0V
• On-board AVDD Delay Switch
• V
ON
Slice Function Integrated
• Power Good Function for TCON Enable
• Automatic Start-Up Sequencing
• UVLO, UVP, OVP, OCP, and OTP Protection
• 40 Ld 6x6 QFN
• Specified for Ambient Operation Over the -40°C to +85°C
Temperature Range
• Pb- Free (RoHS Compliant)
Applications
• LCD TV
Pin Configuration
ISL98602
40 LD 6x6 QFN
TOP VIEW
SWOUT
PGND4
PGND3
33
AVDD
SWIN
SW2
SW1
40
39
38
37
36
35
34
FBB
32
NC
FBN
AGND
REF
COMP
SUPN
DRVN
PGND1
DRVP
SUPP
FBP
PVIN2
31
30
29
28
27
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PVIN1
NC
PHASE1
EN
PGND2
COMPB1
VDC
LGATE
NC
UGATE
THERMAL
PAD
26
25
24
23
22
21
GHON
BOOT
GHD
YV1C
GHC
COMPB2
CPG
NC
FN7699 Rev 3.00
March 7, 2012
PHASE2
FBB2
Page 1 of 2
ISL98602
© Copyright Intersil Americas LLC 2010-2012. All Rights Reserved.
All trademarks and registered trademarks are the property of their respective owners.
For additional products, see
www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at
www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are
current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its
subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see
www.intersil.com
FN7699 Rev 3.00
March 7, 2012
Page 2 of 2
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