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ISL97632 Datenblatt(PDF) 2 Page - Intersil Corporation

Teilenummer ISL97632
Bauteilbeschribung  White LED Driver with Digital Dimming
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Hersteller  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL97632 Datenblatt(HTML) 2 Page - Intersil Corporation

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FN9239.2
April 10, 2007
Absolute Maximum Ratings (TA = +25°C)
Thermal Information
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 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.
θ
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
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
MIN
TYP
MAX
UNIT
VIN
Supply Voltage
2.4
5.5
V
IIN
Supply Current
EN = 3V, enabled, not switching
0.8
1.5
mA
EN = 0V, disabled
1
μA
Fsw
Switching Frequency
1,300
1,450
1,600
kHz
DMAX
Maximum Duty Cycle
90
95
%
ILIM
LX Current
400
470
mA
RSW(LX)
LX Switch ON-Resistance
ILX = 100mA
900
m
Ω
ILEAK
LX Switch Leakage Current
VLX = 28V
1
μA
VFB
Feedback Voltage
Serial interface setting = 15 (center)
90
95
100
mV
Serial interface setting = S (S = 0,1..31)
9.8 + 5.68 x S
mV
Serial interface setting = 0
9.8
mV
IFB
FB Pin Bias Current
VFB = 95mV
1
μA
RSW(FBSW)
FBSW Switch ON-Resistance
10
Ω
VDIODE
Schottky Diode Forward
Voltage
IDIODE = 100mA, TA = +25°C
600
850
mV
OVP
Overvoltage Protection
ISL97632IRT14Z
14
V
ISL97632IRT18Z
18
V
ISL97632IRT26Z
26
28
V
VIL
Logic Low Voltage
0.6
V
VIH
Logic High Voltage
1.5
V
tLOGIC1
Timing Range for Logic 1
SDIN = low
15
45
μs
tLOGIC0
Timing Range for Logic 0
SDIN = low
90
120
μs
tLOGIC-LOAD
Timing Range for Load
SDIN = low
215
μs
tLOGIC-HIGH
Minimum Valid SDIN High
Time
SDIN = high
3
μs
ISL97632


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