- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358845 > LM3502SQX-44 (NATIONAL SEMICONDUCTOR CORP) Step-Up Converter for White LED Applications PDF資料下載
參數(shù)資料
| 型號(hào)： | LM3502SQX-44 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | Step-Up Converter for White LED Applications |
| 中文描述： | LED DISPLAY DRIVER, QCC16 |
| 封裝： | 1MM HEIGHT, LLP-16 |
| 文件頁(yè)數(shù)： | 5/18頁(yè) |
| 文件大?。?/td> | 928K |
| 代理商： | LM3502SQX-44 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)當(dāng)前第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)
Preliminary Electrical Characteristics
(Notes 6, 7) Limits in standard typeface are for T
J
= 25C.
Limits in
bold typeface
apply over the full operating junction temperature range (40C
≤
T
J
≤
+125C). Unless otherwise
specified, V
IN
= 2.5V. (Continued)
Symbol
I
V
OUT1
(ON) V
OUT1
Pin Bias
Current (Note 3)
Parameter
Conditions
Min
Typ
40
50
50
85
Max
80
100
100
140
Units
V
OUT1
= 14V, Cntrl = 1.5V (16)
V
OUT1
= 23V, Cntrl = 1.5V (25)
V
OUT1
= 32V, Cntrl = 1.5V (35)
V
OUT1
= 42V, Cntrl = 1.5V (44)
Fb = 0V, Cntrl = 0V, V
OUT2
= 42V
μA
I
V
OUT2
V
OUT2
Pin Leakage
Current (Note 3)
Under-Voltage
Protection
Over-Voltage
Protection (Note 5)
0.1
3
μA
UVP
On Threshold
Off Threshold
On Threshold (16)
Off Threshold (16)
On Threshold (25)
Off Threshold (25)
On Threshold (35)
Off Threshold (35)
On Threshold (44)
Off Threshold (44)
Off Threshold (Display Lighting)
On Threshold (Display Lighting)
2.2
14.5
14.0
22.5
21.5
32.0
31.0
40.5
39.0
2.4
2.3
15.5
15
24
23
34
33
42
41
0.8
0.8
2.5
V
OVP
16.5
16.0
25.5
24.5
35.0
34.0
43.5
42.0
0.3
V
V
En1
PMOS FET Switch
Enabling Threshold
(
Figure 2
: P1)
NMOS FET Switch
Enabling Threshold
(
Figure 2
: N2)
Device Enabling
Threshold
Shutdown Delay Time
En1 Pin Input Bias
Current
En2 Pin Input Bias
Current
1.4
V
V
En2
Off Threshold (Display Lighting)
On Threshold (Display Lighting)
1.4
0.8
0.8
0.3
V
V
Cntrl
Off Threshold
OnThreshold
1.4
8
0.8
0.8
12
7
0.1
7
0.1
0.3
V
T
SHDW
I
En1
16
14
ms
En1 = 2.5V
En1 = 0V
En2 = 2.5V
En2 = 0V
μA
I
En2
14
μA
Note 1:
Absolute maximum ratings indicate limits beyond which damage to the device may occur. Electrical characteristic specifications do not apply when
operating the device outside of its rated operating conditions.
Note 2:
The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin.
Note 3:
Current flows into the pin.
Note 4:
The maximum allowable power dissipation is a function of the maximum junction temperature, T
J
(MAX), the junction-to-ambient thermal resistance,
θ
JA
,
and the ambient temperature, T
A
. See Thermal Properties for the thermal resistance. The maximum allowable power dissipation at any ambient temperature is
calculated using: P
D
(MAX) = (T
J
(MAX) – T
A
)/
θ
JA
. Exceeding the maximum allowable power dissipation will cause excessive die temperature. For more information
on this topic, please refer to Application Note 1187: Leadless Leadframe Package (LLP) and Application Note 1112 (AN1112) for microSMD chip scale package.
Note 5:
The on threshold indicates that the LM3502 is no longer switching or regulating LED current, while the off threshold indicates normal operation.
Note 6:
All voltages are with respect to the potential at the GND pin.
Note 7:
Min and Max limits are guaranteed by design, test, or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm.
Note 8:
Current flows out of the pin.
L
www.national.com
5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3502ITLX-35 | Step-Up Converter for White LED Applications |
| LM3502ITLX-44 | Step-Up Converter for White LED Applications |
| LM3502SQ-16 | Step-Up Converter for White LED Applications |
| LM3502SQ-25 | Step-Up Converter for White LED Applications |
| LM3502SQ-35 | Step-Up Converter for White LED Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3502SQX-44/NOPB | 功能描述:LED照明驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| LM3503 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503_06 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503ITL-16 | 制造商:Texas Instruments 功能描述:IC WLED DRIVER 16V DUAL LLP-16 |
| LM3503ITL-16/NOPB | 功能描述:LED照明驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。