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参数资料
| 型号： | LTC3490ES8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER PHOTO FLASH 8-SOIC |
| 标准包装： | 100 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz ~ 1.6MHz |
| 电源电压： | 1 V ~ 3.2 V |
| 输出电压： | 2.8 V ~ 4 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1339 (CN2011-ZH PDF) |
LTC3490
ABSOLUTE
AXI U
RATI GS
(Note 1)
Supply Voltage (V IN ) ................................... – 0.3V to 6V
Input Voltages (CTRL/SHDN, CELLS) ......... – 0.3V to 6V
Output Voltages (CAP, LED, SW) ................ – 0.3V to 6V
Operating Temperature Range (Note 2) .. – 40 ° C to 85 ° C
Storage Temperature Range ................. – 65 ° C to 125 ° C
Lead Temperature (Soldering, 10 sec, S8) .......... 300 ° C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
TOP VIEW
CELLS 1
8
CTRL/SHDN
CELLS 1
8
CTRL/SHDN
V IN 2
SW 3
GND 4
9
7
6
5
LOBAT
CAP
LED
V IN 2
SW 3
7
6
LOBAT
CAP
GND 4
5
LED
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
T JMAX = 125 ° C, θ JA = 43 ° C/ W (NOTE 4)
EXPOSED PAD (PIN 9) IS GND
MUST BE SOLDERED TO PCB (NOTE 5)
S8 PACKAGE
8-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 150 ° C/ W (NOTE 4)
ORDER PART NUMBER
LTC3490EDD
DD PART MARKING
LBRQ
ORDER PART NUMBER
LTC3490ES8
S8 PART MARKING
3490
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are T A = 25 ° C. V IN = 2.5V unless otherwise specified.
SYMBOL
V IN
V IN(START)
I LED(MAX)
PARAMETER
Input Supply Range
Minimum Start-Up Voltage
LED Drive Current
CONDITIONS
(Note 3)
V CTRL/SHDN = V IN , DD Package
25 ° C to 85 ° C
– 40 ° C to <25 ° C
V CTRL/SHDN = V IN , S8 Package
25 ° C to 85 ° C
– 40 ° C to <25 ° C
MIN
1
330
310
337
325
TYP
0.9
350
350
350
345
MAX
3.2
1
370
385
363
365
UNITS
V
V
mA
mA
mA
mA
I LED(SHDN)
V LED
LED Drive Current in Shutdown
Output Compliance Voltage
V CTRL/SHDN = 0V
●
2.8
0.1
1
4
μ A
V
V LED(OVL)
I IN(SHDN)
I IN(ACTIVE)
Output Voltage Overvoltage Limit
Input Current, Shutdown
Input Current, Active
Open LED
V CTRL/SHDN = 0V, Excluding Switch Leakage
Excluding Load Power
●
4.2
20
20
4.7
50
30
V
μ A
mA
f SW
Switching Frequency
●
1.0
1.3
1.6
MHz
I L(NMOS)
R ON(NMOS)
Leakage Current, NMOS Switch
On-Resistance, NMOS Switch
0.1
0.1
μ A
?
3490fa
2
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| LTC3499BEDD#PBF | 功能描述:IC REG BOOST SYNC ADJ 0.75A 8DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
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