参数资料
型号: ISL97634IRT14Z-T
厂商: Intersil
文件页数: 4/12页
文件大小: 0K
描述: IC LED DRIVR WHITE BCKLGT 8-TDFN
标准包装: 6,000
拓扑: PWM,升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 车载,背光
类型 - 次要: 白色 LED
频率: 1.3MHz ~ 1.6MHz
电源电压: 2.4 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
供应商设备封装: 8-TDFN(2x3)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
ISL97634
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
Operating Conditions
Thermal Information
Thermal Resistance θ JA (°C/W) θ JC (°C/W)
8 Ld TDFN Package (Notes 4, 5). . . . . . . . . 77 12
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
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.
NOTES:
4. 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 .
5. 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. Boldface limits apply over the operating temperature range, -40°C to +85°C.
MIN
MAX
PARAMETER
V IN
DESCRIPTION
Supply Voltage
CONDITION
(Note 6)
2.4
TYP
(Note 6) UNIT
5.5
V
I IN
Supply Current
PWM/EN = 3V, enabled, not switching
0.8
1.5
mA
PWM/EN = 0V, disabled
1
μA
f SW
DMAX
I LIM
R SW(LX)
ILEAK
VFB
IFB
R SW(FBSW)
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
ILX = 100mA
VLX = 28V
VFB = 95mV
1,300
90
400
90
1,450
95
470
900
0.01
95
10
1,600
1
100
1
kHz
%
mA
m ?
μA
mV
μA
?
V DIODE
OVP
Schottky Diode Forward Voltage
Overvoltage Protection
IDIODE = 100mA, T A = +25°C
ISL97634IRT14Z
600
14
850
mV
V
ISL97634IRT18Z
18
V
ISL97634IRT26Z
26
28
V
VIL
VIH
PWM_on
EN_delay
Logic Low Voltage of PWM/EN
Logic High Voltage of PWM/EN
Minimum PWM On-Time
EN to Vout Delay
1.5
1.5
200
0.6
V
V
μs
μs
NOTE:
6. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
4
FN6264.4
August 27, 2013
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