參數(shù)資料
型號(hào): ISL97634IRT18Z-TK
廠商: INTERSIL CORP
元件分類: 顯示驅(qū)動(dòng)器
英文描述: White LED Driver with Wide PWM Dimming Range
中文描述: LED DISPLAY DRIVER, DSO8
封裝: 2 X 3 MM, ROHS COMPLIANT, PLASTIC, TDFN-8
文件頁數(shù): 2/10頁
文件大?。?/td> 470K
代理商: ISL97634IRT18Z-TK
2
FN6264.2
April 10, 2007
Absolute Maximum Ratings
(T
A
= +25°C)
Input Voltage
(
V
IN
)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 6V
LX Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 28V
FBSW Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 28V
All Other Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 6V
Thermal Information
Operating Conditions
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Resistance
TDFN Package (Notes 1, 2). . . . . . . . .
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . .+125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . .+300°C
θ
JA
(°C/W)
77
θ
JC
(°C/W)
12
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:
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
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
V
IN
= V
PWM/EN
= 3V
PARAMETER
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
V
IN
Supply Voltage
2.4
5.5
V
I
IN
Supply Current
PWM/EN = 3V, enabled, not switching
0.8
1.5
mA
PWM/EN = 0V, disabled
1
μ
A
f
SW
Switching Frequency
1,300
1,450
1,600
kHz
DMAX
Maximum Switching Duty
Cycle
90
95
%
I
LIM
LX Current
400
470
mA
R
SW(LX)
LX Switch ON-Resistance
ILX = 100mA
900
m
Ω
ILEAK
LX Switch Leakage Current
VLX = 28V
0.01
1
μ
A
VFB
Feedback Voltage
90
95
100
mV
IFB
FB Pin Bias Current
VFB = 95mV
1
μ
A
R
SW(FBSW)
FBSW Switch ON-Resistance
10
Ω
V
DIODE
Schottky Diode Forward
Voltage
IDIODE = 100mA, T
A
= +25°C
600
850
mV
OVP
Overvoltage Protection
ISL97634IRT14Z
14
V
ISL97634IRT18Z
18
V
ISL97634IRT26Z
26
28
V
VIL
Logic Low Voltage of
PWM/EN
0.6
V
VIH
Logic High Voltage of
PWM/EN
1.5
V
ISL97634
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