ISL97634IRT14Z-TK Intersil, ISL97634IRT14Z-TK Datasheet - Page 2

• Manufacturer Part Number: ISL97634IRT14Z-TK
• Description: IC LED DRIVR WHITE BCKLGT 8-TDFN
• Manufacturer: Intersil
• Type: Backlight, White LEDr

Specifications of ISL97634IRT14Z-TK

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: White LED
• Frequency: 1.3MHz ~ 1.6MHz
• Voltage - Supply: 2.4 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 70mA
• Internal Switch(s): Yes
• Efficiency: 85%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -

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: 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.
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
EN_delay
PWM_on
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
Minimum PWM On-Time
EN to Vout Delay
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -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
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
8 Ld TDFN Package (Notes 1, 2). . . . .
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
1,300
MIN
400
600
2.4
1.5
90
14
18
26
90
1,450
TYP
0.01
470
900
200
0.8
1.5
95
95
10
θ
JA
1,600
MAX
100
850
(°C/W)
77
5.5
1.5
0.6
28
1
1
1
θ
March 7, 2008
JC
UNIT
kHz
mΩ
mA
mA
mV
mV
µA
µA
FN6264.3
µA
µs
µs
(°C/W)
12
%
V
Ω
V
V
V
V
V