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参数资料
| 型号： | LT3517EUF#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER AUTOMOTIVE 16-QFN |
| 标准包装： | 2,500 |
| 系列： | True Color PWM™ |
| 恒定电流： | 是 |
| 恒定电压： | 是 |
| 拓扑： | PWM，降压（降压），升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 250kHz ~ 2.5MHz |
| 电源电压： | 3 V ~ 30 V |
| 输出电压： | 7V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
LT3517
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. (Note 2) V IN = 5V, SHDN = 5V, PWM = 5V unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
TGEN Input High Voltage
TGEN Input Low Voltage
1.5
0.4
V
V
TGEN Pin Bias Current
TGEN = 5V
100
200
μA
V REF Pin Voltage
I REF = –100μA
●
1.96
2
2.04
V
V REF Pin Voltage Line Regulation
Gate Turn-On Delay
Gate Turn-Off Delay
3V < V IN < 40V
C LOAD = 1nF Between ISP and TG
C LOAD = 1nF Between ISP and TG
200
200
0.03
%/V
ns
ns
Top Gate Drive V GS (V ISP – V TG )
V ISP = 24V, TGEN = 5V
PWM = 0V
7
0
0.3
V
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3517E is guaranteed to meet performance specifications
from 0°C to 125°C operating junction temperature range. Specifications
over the –40°C to 125°C operating junction temperature range are
assured by design, characterization and correlation with statistical
process controls. The LT3517I is guaranteed over the full –40°C to 125°C
operating junction temperature range. The LT3517H is guaranteed over
the full –40°C to 150°C operating junction temperature range. Operating
lifetime is derated at junction temperatures greater than 125°C.
Note 3: Absolute maximum voltage at V IN , SHDN , PWM and TGEN pins
is 40V for nonrepetitive 1 second transients and 30V for continuous
operation.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed the maximum operating junction temperature
when overtemperature protection is active. Continuous operation above
the specified maximum operating junction temperature may impair device
reliability.
TYPICAL PERFORMANCE CHARACTERISTICS
V ISP – V ISN Threshold vs V CTRL
Switch Current Limit
vs Duty Cycle
Oscillator Frequency vs R T
120
V IN = 5V
V ISP = 24V
100 VC = 1V
T A = 25°C
2.0
1.5
10000
T A = 25°C
80
60
1.0
1000
40
0.5
20
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
0
T A = 25°C
20
40 60
80
100
100
1
10
100
4
V CTRL (V)
3518 G01
DUTY CYCLE (%)
3517 G02
For more information www.linear.com/LT3517
R T (k )
3518 G03
3517fg
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相关代理商/技术参数 |
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|---|---|
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| LT3517HFE#TRPBF | 功能描述:IC LED DRIVR AUTOMOTIVE 16-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:True Color PWM™ 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
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| LT3517HFE-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Full-Featured LED Driver with 1.5A Switch Current |
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