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参数资料
| 型号： | LT3498EDDB#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WT/OLED BCKLGT 12DFN |
| 标准包装： | 2,500 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | OLED，白色 LED |
| 频率： | 1.8MHz ~ 2.8MHz |
| 电源电压： | 2.5 V ~ 12 V |
| 输出电压： | 32V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 供应商设备封装： | 12-DFN-EP（3x2） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
LT3498
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C, V IN = 3V, V CTRL1 = V CTRL2 = 3V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V CAP1 , V LED1 Common Mode Minimum Voltage
2.5
V
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch V CESAT
I SW = 200mA
●
●
1.8
88
300
2.3
90
425
250
2.8
MHz
%
mA
mV
Switch Leakage Current
CAP1 Pin Overvoltage Protection
V SW1 = 16V, Switch OFF
26
0.1
27
5
28
μA
V
Schottky Forward Voltage
Schottky Reverse Leakage
I SCHOTTKY1 = 100mA
V REVERSE1 = 20V, V CTRL1 = 0V
0.8
6
V
μA
OLED Driver
Feedback Voltage
Feedback Resistor
(Note 3)
●
●
1.18
177
1.215
182
1.25
186
V
k Ω
Minimum Switch Off Time
Minimum Switch Off Time
After Start-Up
During Start-Up (Note 4)
150
1
ns
μs
Maximum Switch Off Time
Switch Current Limit
V FB2 = 1.5V
●
15
180
20
300
30
400
μs
mA
Switch V CESAT
I SW2 = 200mA
260
mV
Switch Leakage Current
V SW2 = 16V, Switch OFF
0.1
5
μA
Schottky Forward Voltage
Schottky Reverse Leakage
PMOS Disconnect V CAP2 – V OUT2
I SCHOTTKY2 = 100mA
V REVERSE2 = 20V
I OUT2 = 10mA, V CAP2 = 5V
800
250
2
mV
μA
mV
CTRL2 to FB2 Offset
Maximum Shunt Current
V CTRL2 = 0.5V
V FB2 = 1.3V
8
220
15
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 LT3498 is guaranteed to meet performance speci?cations
from 0°C to 85°C. Speci?cations over the –40°C to 85°C junction
operating temperature range are assured by design, characterization and
Note 3: Internal reference voltage is determined by ?nding V FB2 voltage
level which causes quiescent current to increase 20μA above “Not
Switching” level.
Note 4: If CTRL2 is overriding the internal reference, start-up mode
occurs when V FB2 is less then half the voltage on CTRL2. If CTRL2 is not
overriding the internal reference, start-up mode occurs when V FB2 is less
then half the voltage of the internal reference.
correlation with statistical process controls.
3498fa
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT34-SC | 制造商:THOMAS & BETTS 功能描述: |
| LT3500 | 制造商:World Products 功能描述: |
| LT3500EDD#PBF | 功能描述:IC REG DL BUCK/LINEAR 12-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（3），线性（LDO）（2） 功能:任何功能 输出数:5 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:5.6 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| LT3500EDD#TRPBF | 功能描述:IC REG DL BUCK/LINEAR 12-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（3），线性（LDO）（2） 功能:任何功能 输出数:5 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:5.6 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| LT3500EDD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller |
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