參數(shù)資料
型號(hào)： MAX1984
廠商： Maxim Integrated Products, Inc.
元件分類： LED驅(qū)動(dòng)器
英文描述： Ultra-High-Efficiency White LED Drivers
中文描述： 超高效率白光LED驅(qū)動(dòng)器
文件頁(yè)數(shù)： 2/17頁(yè)
文件大小： 333K
代理商： MAX1984
M
Ultra-High-Efficiency White
LED Drivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
OUT, IN, BITA, BITB, BITC, LD1, LD2, LD3, LD4,
LD5, LD6, LD7, LD8 to GND................................-0.3V to +6V
LDG to GND........................................................................±0.3V
LX to GND ................................................-0.3V to (V
OUT
+ 0.3V)
SETI, REF, MODE, SEL to GND...................-0.3V to (V
IN
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
16-Pin Thin QFN (derate 16.9mW/°C above +70°C) ...1349mW
20-Pin Thin QFN (derate 16.9mW/°C above +70°C) ...1349mW
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
= 0°C to +85°C
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
CONDITIONS
MIN
2.7
2.2
TYP
MAX
5.5
2.6
600
1
1.270
5
15
1.2
UNITS
V
V
μA
μA
V
mV
mV
MHz
%
IN Supply Range
IN Undervoltage Lockout Threshold
IN Quiescent Current
IN Shutdown Current
REF Output Voltage
REF Line Regulation
REF Load Regulation
Oscillator Frequency
Oscillator Maximum Duty Cycle
50mV typical hysteresis
BITA = BITB = BITC = IN, LD1 to LD8 = GND
BITA = BITB = BITC = GND
I
REF
= 0
2.7V < V
IN
< 5.5V
-1μA < I
REF
< +50μA
2.4
400
0.1
1.250
0.2
5
1
85
1.230
0.8
OUT Overvoltage Protection (OVP)
Threshold
V
LD1
to V
LD8
= 50mV, OUT rising, 100mV typical
hysteresis
5.1
5.3
5.5
V
INTERNAL MOSFET SWITCHES
N-Channel MOSFET On-Resistance
N-Channel MOSFET Leakage Current
P-Channel MOSFET On-Resistance
P-Channel MOSFET Leakage Current
I
LX
= 200mA
V
LX
= 5.5V, BITA = BITB = BITC = GND
I
LX
= 200mA
LX = GND, V
OUT
= 5.5V, BITA = BITB = BITC = GND
MAX1984
MAX1985
MAX1986
0.4
0.1
0.5
0.1
0.65
0.52
0.39
0.8
1
1
1
0.81
0.65
0.52
μA
μA
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
MODE, BITA, BITB, BITC Input Bias
Current
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
0.4
V
V
V
IN
- 0.4
2.7V < V
IN
< 5.5V
0.01
1
μA
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1984ETP 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
MAX1984ETP+ 功能描述:LED照明驅(qū)動(dòng)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
MAX1984ETP+T 功能描述:LED照明驅(qū)動(dòng)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
MAX1984ETP-T 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
MAX1985ETP 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
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