ISL97634 Intersil Corporation, ISL97634 Datasheet - Page 2

• Manufacturer Part Number: ISL97634
• Description: White LED Driver
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings
Input Voltage
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
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. Typ values are for
information purposes only at TJ = TC = TA = +25°C.
NOTE:
Electrical Specifications
1. θ
2. For θ
PARAMETER
R
Tech Brief TB379.
R
SW(FBSW)
V
JA
DMAX
ILEAK
SW(LX)
DIODE
OVP
VFB
I
f
VIH
V
IFB
VIL
I
SW
LIM
IN
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
IN
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
(
V
IN )
Supply Voltage
Supply Current
Switching Frequency
Maximum Switching Duty
Cycle
LX Current
LX Switch ON-Resistance
LX Switch Leakage Current
Feedback Voltage
FB Pin Bias Current
FBSW Switch ON-Resistance
Schottky Diode Forward
Voltage
Overvoltage Protection
Logic Low Voltage of
PWM/EN
Logic High Voltage of
PWM/EN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
DESCRIPTION
2
V
IN
(T
A
= V
= +25°C)
PWM/EN
PWM/EN = 3V, enabled, not switching
PWM/EN = 0V, disabled
ILX = 100mA
VLX = 28V
VFB = 95mV
IDIODE = 100mA, T
ISL97634IRT14Z
ISL97634IRT18Z
ISL97634IRT26Z
= 3V
CONDITION
ISL97634
A
= +25°C
Thermal Information
Thermal Resistance
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . . +300°C
TDFN Package (Notes 1, 2). . . . . . . . .
1,300
MIN
400
600
2.4
1.5
90
14
18
26
90
1,450
TYP
0.01
470
900
0.8
95
95
10
θ
JA
1,600
MAX
100
850
(°C/W)
77
5.5
1.5
0.6
28
1
1
1
θ
April 10, 2007
JC
UNIT
kHz
mΩ
mA
mA
mV
mV
μA
μA
μA
FN6264.2
(°C/W)
12
%
V
Ω
V
V
V
V
V