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参数资料
| 型号： | MAX1984 |
| 厂商： | Maxim Integrated Products, Inc. |
| 元件分类： | LED驱动器 |
| 英文描述： | Ultra-High-Efficiency White LED Drivers |
| 中文描述： | 超高效率白光LED驱动器 |
| 文件页数： | 4/17页 |
| 文件大小： | 333K |
| 代理商： | MAX1984 |
M
Ultra-High-Efficiency White
LED Drivers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1; V
IN
= 3.3V, SETI = BITA = BITB = BITC = SEL = IN, MODE = GND, C
OUT
= 4.7μF, C
REF
= 0.22μF,
T
A
= -40
°
C to
+85
°
C
, unless otherwise noted.) (Note 3)
PARAMETER
CONDITIONS
MIN
2.7
TYP
MAX
5.5
UNITS
V
IN Supply Range
IN Undervoltage Lockout Threshold
50mV typical hysteresis
2.2
2.6
V
IN Quiescent Current
REF Output Voltage
REF Line Regulation
REF Load Regulation
Oscillator Frequency
BITA = BITB = BITC = IN, LD1 to LD8 = GND
I
REF
= 0
2.7V < V
IN
< 5.5V
-1μA < I
REF
< +50μA
600
1.270
5
15
1.2
μA
V
mV
mV
MHz
1.230
0.8
OUT Overvoltage Protection
Threshold
INTERNAL MOSFET SWITCHES
N-Channel MOSFET On-Resistance
P-Channel MOSFET On-Resistance
V
LD1
to V
LD8
= 50mV, OUT rising, 100mV typical
hysteresis
5.1
5.5
V
I
LX
= 200mA
I
LX
= 200mA
MAX1984
MAX1985
MAX1986
0.8
1.0
0.81
0.65
0.52
0.50
0.40
0.30
N-Channel MOSFET Current Limit
A
CONTROL INPUTS
BITA, BITB, BITC Input Logic Low
Level
BITA, BITB, BITC Input Logic High
Level
MODE Input Logic Low Level
MODE Input Logic High Level
SEL Input Logic Low Level
SEL Input Logic Midlevel
SEL Input Logic High Level
FULL-SCALE LED CURRENT ADJUSTMENT
2.7V < V
IN
< 5.5V
0.4
V
2.7V < V
IN
< 5.5V
1.6
V
2.7V < V
IN
< 5.5V
2.7V < V
IN
< 5.5V
2.7V < V
IN
< 5.5V
2.7V < V
IN
< 5.5V
2.7V < V
IN
< 5.5V
0.4
0.4
1.85
V
V
V
V
V
V
IN
- 0.4
0.50
2.05
V
LD
_ = 80mV, SETI = BITA = BITB = BITC = IN
V
LD
_ = 80mV, R
SETI
= 278k
±1%, BITA = BITB =
BITC = IN
V
LD
_ = 80mV, R
SETI
= 1.8M
±1%, BITA = BITB =
BITC = IN
V
LD_
= 80mV, R
SETI
= 697k
±1%, BITA = BITB =
BITC = IN
SETI = GND
16
20
22
28
11.5
16.0
15.5
20.0
LD1 to LD8 Output Current
0.42
0.60
mA
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1984ETP | Ultra-High-Efficiency White LED Drivers |
| MAX1985ETP | Ultra-High-Efficiency White LED Drivers |
| MAX1986ETE | Ultra-High-Efficiency White LED Drivers |
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| MAX1816 | Replaced by TMS320VC5506 : Digital Signal Processors 144-LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1984ETP | 功能描述:LED照明驱动器 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX1984ETP+ | 功能描述:LED照明驱动器 High-Efficiency White LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX1984ETP+T | 功能描述:LED照明驱动器 High-Efficiency White LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX1984ETP-T | 功能描述:LED照明驱动器 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX1985ETP | 功能描述:LED照明驱动器 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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