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参数资料
| 型号： | LT3519IMS-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | LED DRIVER WITH INTEGRATED SCHOT |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 恒定电压： | 是 |
| 拓扑： | PWM，SEPIC，降压（降压），升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载 |
| 频率： | 800kHz ~ 1.1MHz |
| 电源电压： | 3 V ~ 30 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TFSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 16-MSOP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
LT3519/LT3519-1/LT3519-2
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full
operating temperature range, otherwise speci?cations are at T A = 25°C. V IN = 12V, SHDN /UVLO = 12V, CTRL = 2V, PWM = 5V,
unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
400kHz (LT3519)
1MHz (LT3519-1)
2.2MHz (LT3519-2)
400kHz (LT3519)
1MHz (LT3519-1)
2.2MHz (LT3519-2)
l
l
l
l
l
l
l
320
0.80
1.9
94
86
72
750
400
1
2.2
97
93
83
980
440
1.10
2.4
1150
kHz
MHz
MHz
%
%
%
mA
Switch V CESAT
Switch Leakage Current
CTRL for Full-Scale LED Current
I SW = 500mA
SW = 45V, PWM = 0V
1.2
300
2
mV
μA
V
CTRL Pin Bias Current
Current Out of Pin, CTRL = 0.1V
50
100
nA
PWM Input High Voltage
PWM Input Low Voltage
PWM Pin Resistance to GND
l
l
1.5
70
0.8
V
V
kΩ
FB Regulation Voltage (V FB )
l
1.190
1.220
1.250
V
FB Pin Threshold Voltage for OPENLED Falling
V FB – 70mV V FB – 60mV V FB – 50mV
V
FB Pin Bias Current
Current Out of Pin, FB = 1V
60
120
nA
ISP , ISN Idle Input Bias Current
ISP , ISN Active Input Bias Current
Schottky Forward Drop
Schottky Leakage Current
PWM = 0V, ISP = ISN = 24V
ISP = ISN = 24V, Current per Pin
I SCHOTTKY = 500mA
CATHODE = 24V, ANODE = 0V
17
0.8
1
4
μA
μA
V
μA
SHDN /UVLO Threshold Voltage Falling
SHDN /UVLO Input Low Voltage
SHDN /UVLO Pin Bias Current Low
SHDN /UVLO Pin Bias Current High
I VIN Drops Below 1μA
SHDN /UVLO = 1.15V
SHDN /UVLO = 1.30V
l
1.180
1.8
1.220
2.2
10
1.270
0.4
2.6
100
V
V
μA
nA
V REF Output Voltage
–100μA ≤ I VREF ≤ 0μA
l
1.96
2
2.04
V
V REF Output Pin Regulation
OPENLED Output Low (V OL )
OPENLED Leakage Current
3V < V IN < 40V
I OPENLED = 1mA
FB = 0V, OPENLED = 40V
0.04
240
1
%/V
mV
μA
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 LT3519E/LT3519E-1/LT3519E-2 are guaranteed to meet
speci?ed performance from 0°C to 125°C junction temperature range.
Speci?cations over the –40°C to 125°C operating junction temperature
statistical process controls. The LT3519I/LT3519I-1/LT3519I-2 are
guaranteed to meet performance speci?cations over the –40°C to 125°C
operating junction temperature range.
Note 3. Absolute maximum voltage at V IN and OPENLED is 40V for
nonrepetitive one second transients and 30V for continuous operation.
Note 4. For V IN below 6V, the SHDN /UVLO pin must not exceed V IN for
proper operation.
range are assured by design, characterization and correlation with
3519fa
3
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相关代理商/技术参数 |
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| LT3519IMS-2#PBF | 功能描述:IC LED DVR W/SCHOTTKY DIO 16MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 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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