http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




Intersil Electronic Components Datasheet

ISL97632 Datasheet

White LED Driver

No Preview Available !

ISL97632 pdf
®
Data Sheet
April 10, 2007
ISL97632
FN9239.2
White LED Driver with Digital Dimming
The ISL97632 represents an efficient and highly integrated
PWM boost LED driver that is suitable for 1.8” to 3.5” LCDs
that employ 2 to 6 white LEDs for backlighting. With
integrated Schottky diode, OVP, and dynamic digital
dimming capability, the ISL97632 provides a simple, reliable,
and flexible solution to the backlight designers.
The ISL97632 features a simple single-wire digital interface
that provides a 5-bit dimming control. The dimming signal
adjusts the FB voltage and therefore the LED brightness in a
DC manner in 32 linear steps. An EN pin can be used to
provide a zero brightness setting or shutdown power saving
function.
The ISL97632 is available in the 8 Ld DFN (2mmx3mm)
package. There are 14V, 18V, and 26V OVP options that are
suitable for 3, 4, and 6 LEDs backlight applications
respectively. The ISL97632 is specified for operation over
the -40°C to +85°C ambient temperature at input voltage
from 2.4V to 5.5V.
Pinout
ISL97632
(8 LD 2x3 TDFN)
TOP VIEW
GND 1
VIN 2
EN 3
SDIN 4
8 LX
7 VOUT
6 FBSW
5 FB
Typical Application Circuit
10µH or 22µH
VIN
VIN
EN
SDIN
GND
LX
VOUT
FBSW
FB
Features
• 5-Bit Digital Dimming Control
• Drives up to 6 LEDs in Series
• OVP (14V, 18V and 26V for 3, 4, and 6 LEDs applications)
• Integrated Schottky Diode
• 2.4V to 5.5V input
• 86% Efficiency
• 1.4MHz Switching Frequency Allows Small LC
• Enable for Shutdown Function or Zero Brightness Setting
• 1µA Shutdown Current
• Internally Compensated
• 8 Ld DFN (2mmx3mm)
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• LED backlighting for
- Cell phones
- Smartphones
- MP3
- PMP
- Automotive Navigation Panel
- Portable GPS
Ordering Information
PART NUMBER
(Note)
TAPE &
PART REEL
MARKING (QTY)
PACKAGE
(Pb-Free)
PKG.
DWG.#
ISL97632IRT14Z-T ELB
13” 8 Ld 2x3 TDFN L8.2x3A
(6k pcs.)
ISL97632IRT14Z-TK ELB
13” 8 Ld 2x3 TDFN L8.2x3A
(1k pcs.)
ISL97632IRT18Z-T ELC
13” 8 Ld 2x3 TDFN L8.2x3A
(6k pcs.)
ISL97632IRT18Z-TK ELC
13” 8 Ld 2x3 TDFN L8.2x3A
(1k pcs.)
ISL97632IRT26Z-T ELD
13” 8 Ld 2x3 TDFN L8.2x3A
(6k pcs.)
ISL97632IRT26Z-TK ELD
13” 8 Ld 2x3 TDFN L8.2x3A
(1k pcs.)
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.
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.
Copyright Intersil Americas Inc. 2006-2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

ISL97632 Datasheet

White LED Driver

No Preview Available !

ISL97632 pdf
ISL97632
Absolute Maximum Ratings (TA = +25°C)
Input Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
LX Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 28V
FBSW Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 28V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance (Typical, Note 1)
θJA (°C/W) θJC (°C/W)
TDFN Package (Notes 1, 2). . . . . . . . .
70
10.5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . . +300°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed over temperature of -40°C to +85°C unless otherwise stated. Typical values are for
information purposes only at TJ = TC = TA = +25°C.
NOTE:
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 VIN = VEN = 3V
PARAMETER
DESCRIPTION
CONDITION
VIN Supply Voltage
IIN Supply Current
EN = 3V, enabled, not switching
EN = 0V, disabled
Fsw Switching Frequency
DMAX
Maximum Duty Cycle
ILIM
RSW(LX)
ILEAK
LX Current
LX Switch ON-Resistance
LX Switch Leakage Current
ILX = 100mA
VLX = 28V
VFB Feedback Voltage
Serial interface setting = 15 (center)
Serial interface setting = S (S = 0,1..31)
Serial interface setting = 0
IFB FB Pin Bias Current
VFB = 95mV
RSW(FBSW)
VDIODE
FBSW Switch ON-Resistance
Schottky Diode Forward
Voltage
IDIODE = 100mA, TA = +25°C
OVP
Overvoltage Protection
ISL97632IRT14Z
ISL97632IRT18Z
ISL97632IRT26Z
VIL Logic Low Voltage
VIH Logic High Voltage
tLOGIC1
tLOGIC0
tLOGIC-LOAD
tLOGIC-HIGH
Timing Range for Logic 1
Timing Range for Logic 0
Timing Range for Load
Minimum Valid SDIN High
Time
SDIN = low
SDIN = low
SDIN = low
SDIN = high
MIN
2.4
1,300
90
400
90
600
TYP
0.8
1,450
95
470
900
95
9.8 + 5.68 x S
9.8
10
MAX
5.5
1.5
1
1,600
1
100
1
850
14
18
26 28
0.6
1.5
15 45
90 120
215
3
UNIT
V
mA
μA
kHz
%
mA
mΩ
μA
mV
mV
mV
μA
Ω
mV
V
V
V
V
V
μs
μs
μs
μs
2 FN9239.2
April 10, 2007


Part Number ISL97632
Description White LED Driver
Maker Intersil Corporation
Total Page 9 Pages
PDF Download
ISL97632 pdf
ISL97632 Datasheet PDF
[partsNo] view html
View PDF for Mobile








Similar Datasheet

1 ISL97631 White LED Boost Regulator Intersil Corporation
Intersil Corporation
ISL97631 pdf
2 ISL97632 White LED Driver Intersil Corporation
Intersil Corporation
ISL97632 pdf
3 ISL97634 White LED Driver Intersil Corporation
Intersil Corporation
ISL97634 pdf
4 ISL97635 SMBus 8-Channel LED Driver Intersil Corporation
Intersil Corporation
ISL97635 pdf
5 ISL97635A SMBus 6-Channel LED Driver Intersil
Intersil
ISL97635A pdf
6 ISL97636 8-Channel LED Driver Intersil Corporation
Intersil Corporation
ISL97636 pdf
7 ISL97636A 6-Channel LED Driver Intersil
Intersil
ISL97636A pdf





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components

Privacy Policy