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參數(shù)資料
| 型號： | MAX1985ETP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | Ultra-High-Efficiency White LED Drivers |
| 中文描述： | LED DISPLAY DRIVER, QCC20 |
| 封裝： | 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGD-1, QFN-20 |
| 文件頁數(shù)： | 8/17頁 |
| 文件大?。?/td> | 333K |
| 代理商： | MAX1985ETP |
M
Ultra-High-Efficiency White
LED Drivers
8
_______________________________________________________________________________________
Pin Description
PIN
MAX1984
1
MAX1985
1
MAX1986
1
NAME
FUNCTION
OUT
Step-Up Regulator Output. Bypass OUT to GND with a 4.7μF capacitor.
2
2
2
LX
Inductor Connection. LX is connected to the drains of the internal N-channel and
P-channel MOSFETs.
3
—
3
3
—
GND
N.C.
Ground
No Connection. Not internally connected.
LED1 Cathode Connection. LD1 is the open-drain output of an internal current
regulator for controlling the current through LED1. It is able to sink up to 25mA.
If not used, connect LD1 to GND.
LED2 Cathode Connection. LD2 is the open-drain output of an internal current
regulator for controlling the current through LED2. It is able to sink up to 25mA.
If not used, connect LD2 to GND.
LED3 Cathode Connection. LD3 is the open-drain output of an internal current
regulator for controlling the current through LED3. It is able to sink up to 25mA.
If not used, connect LD5 to GND.
LED4 Cathode Connection. LD4 is the open-drain output of an internal current
regulator for controlling the current through LED4. It is able to sink up to 25mA.
If not used, connect LD4 to GND.
4, 12
4
5
4
LD1
5
6
5
LD2
6
7
7
LD3
7
9
8
LD4
8
8
6
LDG
Common Ground Connection for Internal Current Regulators. Connect LDG to
GND.
9
10
—
LD5
LED5 Cathode Connection. LD5 is the open-drain output of an internal current
regulator for controlling the current through LED5. It is able to sink up to 25mA.
If not used, connect LD5 to GND.
LED6 Cathode Connection. LD6 is the open-drain output of an internal current
regulator for controlling the current through LED6. It is able to sink up to 25mA.
If not used, connect LD6 to GND.
LED7 Cathode Connection. LD7 is the open-drain output of an internal current
regulator for controlling the current through LED7. It is able to sink up to 25mA.
If not used, connect LD7 to GND.
LED8 Cathode Connection. LD8 is the open-drain output of an internal current
regulator for controlling the current through LED8. It is able to sink up to 25mA.
If not used, connect LD8 to GND.
Maximum LED Current Set Input. SETI sets the maximum current through each
LED. Connect SETI to IN for a default maximum current of 18mA; connect SETI to
GND for the 0.5mA LED test mode. Connect a resistor from SETI to GND to adjust
the maximum current between 12mA to 25mA (see the
Setting the Maximum LED
Current
section).
10
11
—
LD6
11
—
—
LD7
12
—
—
LD8
13
13
9
SETI
14
14
10
REF
1.25V Reference Output. Bypass REF to GND with a minimum 0.22μF ceramic
capacitor.
Brightness Control Input (Multimode):
DPWM Mode: Leave unconnected for greater than 50kHz operation. Add a
capacitor from BITB to ground for lower frequency operation.
Analog Mode: Analog control signal input.
2- or 3-Bit Parallel Mode: Digital input. Least significant bit (LSB) for 2-bit mode.
15
15
11
BITB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1985ETP+ | 功能描述:LED照明驅(qū)動器 High-Efficiency White LED Driver 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 |
| MAX1985ETP+T | 功能描述:LED照明驅(qū)動器 High-Efficiency White LED Driver 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 |
| MAX1985ETP-T | 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 |
| MAX1985EVKIT | 功能描述:電源管理IC開發(fā)工具 MAX1985 Eval Kit 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 |
| MAX1986ETE | 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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