參數(shù)資料
型號： LM2794
廠商： National Semiconductor Corporation
英文描述： Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control
中文描述： 電流調(diào)節(jié)開關(guān)電容LED電源與模擬和PWM亮度控制
文件頁數(shù)： 3/16頁
文件大?。?/td> 487K
代理商： LM2794
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN
SD
0.5 to 6.2V max
0.5 to (V
IN
+0.3V) w/
6.2V max
BRGT
0.5 to (V
IN
+0.3V) w/
6.2V max
Continuous Power Dissipation
(Note 2)
T
JMAX
(Note 2)
Internally Limited
135C
θ
JA
(Notes 2, 3)
Storge Temperature
Lead Temp. (Soldering, 5 sec.)
ESD Rating (Note 4)
Human Body Model
Machine Model
125C/W
65C to +150C
260C
2kV
200V
Operating Conditions
Input Voltage (V
IN
)
Ambient Temperature (T
A
)
Junction Temperature (T
J
)
2.7V to 5.5V
30C to +85C
30C to +100C
Electrical Characteristics
Limits in standard typeface are for T
J
= 25C and limits in
boldface type
apply over the full
Operating Junction Temperature
Range
(30C
≤
T
J
≤
+100C). Unless otherwise specified, C1 = C2 = C
IN
= C
HOLD
= 1 μF, V
IN
= 3.6V, BRGT pin = 0V; R
SET
=124
; LM2794:V
SD
= V
IN
(LM2795: V
SD
= 0V).
Symbol
Parameter
Conditions
I
DX
Available Current at Output Dx
3.0V
≤
V
IN
≤
5.5V
V
DX
≤
3.8V
BRGT = 50mV
2.7V
≤
V
IN
≤
3.0V
V
DX
≤
3.6V
BRGT = 0V
V
DX
≤
3.8V
BRGT = 200mV
V
DX
Available Voltage at Output Dx
3.0V
≤
V
IN
≤
5.5V
I
DX
≤
15mA
BRGT = 50mV
I
DX
Line Regulation of Dx Output
Current
V
DX
= 3.6V
3.0V
≤
V
IN
≤
4.4V
V
DX
= 3.6V
I
DX
Load Regulation of Dx Output
Current
3.0V
≤
V
DX
≤
3.8V
I
D-MATCH
Current Matching Between Any
Two Outputs
I
Q
Quiescent Supply Current
3.0V
≤
V
IN
≤
4.2V, Active, No
Load Current
R
SET
= OPEN
I
SD
Shutdown Supply Current
3.0V
≤
V
IN
≤
5.5V, Shutdown
I
PULL-SD
Shutdown Pull-Up Current
(LM2795)
V
CP
Input Charge-Pump Mode To
Pass Mode Threshold
V
CPH
Input Charge-Pump Mode To
Pass Mode Hysteresis
V
IH
SD Input Logic High (LM2794)
3.0V
≤
V
IN
≤
5.5V
SD Input Logic High (LM2795)
V
IL
SD Input Logic Low (LM2794)
3.0V
≤
V
IN
≤
5.5V
SD Input Logic Low (LM2795)
I
LEAK-SD
SD Input Leakage Current
0V
≤
V
SD
≤
V
IN
R
BRGT
BRGT Input Resistance
I
SET
I
SET
Pin Output Current
Min
15
Typ
16.8
Max
Units
mA
10
mA
20
mA
3.8
V
3.0V
≤
V
IN
≤
5.5V
14.18
15.25
16.78
mA
14.18
15.25
16.32
mA
V
IN
= 3.6V
14.18
15.25
16.32
mA
V
IN
= 3.6V, V
DX
= 3.6V
0.5
%
5.5
8.2
mA
2.3
1.5
5
μA
μA
V
IN
= 3.6V
4.7
V
(Note 5)
250
mV
1.0
V
0.8V
IN
0.2
V
0.2V
IN
100
240
I
DX
/10
nA
k
mA
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2794BL 功能描述:IC LED DRVR WHT BCKLT 14USMD RoHS:否 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓撲:PWM，切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產(chǎn)品目錄頁面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT
LM2794BL NOPB 制造商:Texas Instruments 功能描述:LED DRVR 4Segment 3.3V/5V 14-Pin uSMD T/R
LM2794BLX 制造商:Texas Instruments 功能描述:
LM2794EVAL 功能描述:電源管理IC開發(fā)工具 EVAL KIT FOR LM2794 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
LM2794TL 功能描述:IC LED DRVR WHT BCKLT 14MICROSMD RoHS:否 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 恒定電流:- 恒定電壓:- 拓撲:升壓（升壓），切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:625kHz ~ 875kHz 電源電壓:2.7 V ~ 5.3 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-µMAX 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C
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