參數(shù)資料
型號(hào)： LTC3490ES8
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 顯示驅(qū)動(dòng)器
英文描述： Single Cell 350mA LED Driver
中文描述： LED DISPLAY DRIVER, PDSO8
封裝： 0.150 INCH, PLASTIC, SOP-8
文件頁(yè)數(shù)： 4/12頁(yè)
文件大?。?/td> 123K
代理商： LTC3490ES8
4
LTC3490
3490f
PIU
CELLS (Pin 1):
A logic input to set the low-battery and
undervoltage shutdown thresholds. A logic low (tied to
GND) will set the thresholds for 1 cell. A logic high (tied to
V
IN
) will set the thresholds for 2 cells.
V
IN
(Pin 2):
Supply Voltage.
SW (Pin 3):
Switch Input. Connect this pin to an external
inductor from V
IN
.
GND (Pin 4):
Circuit Ground.
LED (Pin 5):
Output Drive Current to LED.
CAP (Pin 6):
Filter Capacitor. A 4.7
μ
F low ESR capacitor
should be tied to this pin.
LOBAT (Pin 7):
Low active, open-drain logic output indi-
cating a low-battery condition.
CTRL/SHDN (Pin 8):
Analog Control Voltage and Shut-
down. When V
IN
0.2 < V
CTRL
< V
IN
0.9, the LED drive
current varies according to the formula:
I
V
V
mA
LED
CTRL
IN
=
500
–0 2
When V
CTRL
> V
IN
0.9, the LED drive current is clamped
at 350mA. When V
CTRL
< V
IN
0.2, then the part is in low
power shutdown.
Exposed Pad (Pin 9, DD Package):
Ground. This pin must
be soldered to the PCB to provide both electrical contact
to ground and good thermal contact to the PCB.
I
LED
vs V
LED
V
LED
(V)
2.8
340
I
L
342
346
348
350
360
354
3
3.2
3.4
3.6
3.8
3490 G04
344
356
358
352
4
V
IN
= 2.4V
TYPICAL PERFOR U
I
LED
(mA)
0
0
E
10
30
40
50
100
70
100
200
3490 G05
20
80
90
60
300
400
V
IN
= 2.4V
V
IN
= 1.2V
Efficiency vs I
LED
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3490ES8#PBF 功能描述:IC LED DRIVER PHOTO FLASH 8-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:60 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?線性（LDO），PWM，升壓（升壓） 輸出數(shù):8 內(nèi)部驅(qū)動(dòng)器:是 類(lèi)型 - 主要:背光 類(lèi)型 - 次要:RGB，白色 LED 頻率:500kHz ~ 1.5MHz 電源電壓:4.75 V ~ 26 V 輸出電壓:45V 安裝類(lèi)型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* 工作溫度:-40°C ~ 85°C
LTC3490ES8#TRPBF 功能描述:IC LED DRIVER PHOTO FLASH 8-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?開(kāi)路漏極，PWM 輸出數(shù):4 內(nèi)部驅(qū)動(dòng)器:是 類(lèi)型 - 主要:LED 閃爍器 類(lèi)型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類(lèi)型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱(chēng):935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
LTC3499 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection
LTC3499B 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection
LTC3499BEDD 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection
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