- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384605 > LP3958 (National Semiconductor Corporation) Lighting Management Unit with High Voltage Boost Converter PDF資料下載
參數(shù)資料
| 型號(hào)： | LP3958 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Lighting Management Unit with High Voltage Boost Converter |
| 中文描述： | 照明管理股高電壓升壓轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 18/28頁(yè) |
| 文件大小： | 1091K |
| 代理商： | LP3958 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)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)當(dāng)前第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)
General Purpose I/O Functionality
LP3958 has three general purpose I/O pins: GPIO[0]/PWM,
GPIO[1] and GPIO[2]. GPIO[0]/PWM can also be used as a
PWM input for the external LED PWM controlling. GPIO
bi-directional drivers are operating from the V
DDIO
supply
domain.
Registers for GPIO are as follows:
GPIO CONTROL (06H)
Bit
4
Name
Description
Enable PWM pin
0 = disable
1 = enable
GPIO pin direction
0 = input
1 = output
EN_PWM_PIN
OEN[2:0]
2:0
GPIO DATA (07H)
Bit
2:0
Name
DATA[2:0]
Description
Data bits
GPIO control register is used to set the direction of each
GPIO pin. For example, by setting OEN0 bit high the
GPIO[0]/PWM pin acts as a logic output pin with data de-
fined DATA0 in GPIO data register. Note, that the EN_PW-
M_PIN bit overrides OEN0 state by forcing GPIO[0]/PWM to
act as PWM input. GPIO[1] and GPIO[2] pins can be se-
lected to be inputs or outputs, defined by OEN1 and OEN2
bit status. PWM functionality is valid only for GPIO[0]/PWM
pin. GPIO data register contains the data of GPIO pins.
When output direction is selected to GPIO pin, then GPIO
data register defines the output pin state. When GPIO data
register is read, it contains the state of the pin despite of the
pin direction.
Logic Interface Characteristics
(V
DDIO
= 1.65V...V
DD1,2
unless otherwise noted)
Symbol
Parameter
LOGIC INPUT SCL, SDA, GPIO[0:2]
V
IL
Input Low Level
V
IH
Input High Level
I
I
Logic Input Current
f
SCL
Clock Frequency
LOGIC INPUT NRST
V
IL
Input Low Level
V
IH
Input High Level
I
I
Input Current
t
NRST
Reset Pulse Width
LOGIC OUTPUT SDA
V
OL
Output Low Level
V
OH
Output High Level
I
L
Output Leakage Current
LOGIC OUTPUT GPIO[0:2]
V
OL
Output Low Level
V
OH
Output High Level
I
L
Output Leakage Current
Conditions
Min
Typ
Max
Units
0.2xV
DDIO
V
V
μA
kHz
0.8xV
DDIO
1.0
1.0
400
0.5
V
V
μA
μs
1.2
-1.0
10
1.0
I
SDA
= 3mA
I
SDA
= -3mA
V
SDA
= 2.8V
0.3
0.5
V
V
DDIO
0.5
V
DDIO
0.3
1.0
μA
I
GPIO
= 3 mA
I
GPIO
= 3 mA
V
GPIO
= 2.8V
0.3
0.5
V
V
μA
V
DDIO
0.5
V
DDIO
0.3
1.0
L
www.national.com
18
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP3958TL | Lighting Management Unit with High Voltage Boost Converter |
| LP3958TLX | Lighting Management Unit with High Voltage Boost Converter |
| LP3971 | POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
| LP3971SQ-A514 | POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
| LP3971SQ-B410 | POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3958TL | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lighting Management Unit with High Voltage Boost Converter |
| LP3958TL/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 |
| LP3958TLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lighting Management Unit with High Voltage Boost Converter |
| LP3958TLX/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 |
| LP395Z | 功能描述:兩極晶體管 - BJT RoHS:否 制造商:STMicroelectronics 配置: 晶體管極性:PNP 集電極—基極電壓 VCBO: 集電極—發(fā)射極最大電壓 VCEO:- 40 V 發(fā)射極 - 基極電壓 VEBO:- 6 V 集電極—射極飽和電壓: 最大直流電集電極電流: 增益帶寬產(chǎn)品fT: 直流集電極/Base Gain hfe Min:100 A 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PowerFLAT 2 x 2 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。