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參數(shù)資料
| 型號： | LM4970 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | Audio Synchronized Color LED Driver |
| 中文描述： | 音頻同步彩色LED驅(qū)動器 |
| 文件頁數(shù)： | 4/15頁 |
| 文件大?。?/td> | 726K |
| 代理商： | LM4970 |
Color LED Driver Electrical Characteristics V
DD
= 3.0V
(Notes 1, 2, 9) (Continued)
The following specifications apply for V
DD
= 3.0V unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4970
Units
(Limits)
Typical
(Note 6)
60
12
–11
Limits
(Notes 7, 8)
f
PWM
PWM Frequency
PWM_F
<
1:0
>
= ’01’
Maximum setting
Minimum setting
Hz
dB
dB
Input Signal Level Gain Control
Note 1:
All voltages are measured with respect to the GND pin unless otherwise specified.
Note 2:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 3:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX
,
θ
JA
, and the ambient temperature, T
A
. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
- T
A
) /
θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower.
Note 4:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 5:
Machine Model, 200pF–220pF discharged through all pins, except pins 13 and 14.
Note 6:
Typicals are measured at +25C and represent the parametric norm.
Note 7:
Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8:
Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 9:
Shutdown current and supply current are measured in a normal room environment. All digital input pins are connected to I
2
CV
DD
.
Note 10:
The given
θ
JA
is for an LM4970SD mounted on a PCB with a 2in
2
area of 1oz printed circuit board copper ground plane.
Note 11:
Audio input level set at 1V
RMS
. The input summing amplifier gain is set to 12dB.
Note 12:
Machine Model, 200pF–220pF discharge through pins 13 and 14 (LED1 and LED2).
Note 13:
V
DD
may be used to power the LEDs. It may be necessary to drive the LEDs from a boost (V
DDBOOST
) found within the system.
L
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4970SD | 功能描述:LED照明驅(qū)動器 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 |
| LM4970SD/NOPB | 功能描述:LED照明驅(qū)動器 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 |
| LM4970SD/NOPB | 制造商:Texas Instruments 功能描述:IC, LED DRIVER, BOOST, LLP-10 |
| LM4970SDBD | 功能描述:音頻 IC 開發(fā)工具 LM4970 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| LM4970SDX | 功能描述:LED照明驅(qū)動器 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 |
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