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参数资料
| 型号： | MAX1578ETG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC PS BIAS/WHITE LED TFT 24-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 应用： | LCD 显示器 |
| 电流 - 电源： | 3mA |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
Complete Bias and White LED Power Supplies
for Small TFT Displays
ABSOLUTE MAXIMUM RATINGS
IN, CS, C1N, C2N, MAIN, ONBIAS, V DD to GND.....-0.3V to +6V
CTRL to GND..................-0.3V to the lesser of +6V or (V IN + 2V)
LX, OUT to GND .....................................................-0.3V to +37V
COMP to GND .............................................-0.3V to (V IN + 0.3V)
CU1 to MAIN ............................................................-0.3V to +6V
CU2 to CU1 ..............................................................-0.3V to +6V
CU3 to CU2 ..............................................................-0.3V to +6V
CU3 to POS ............................................................-0.3V to +18V
CU3 to GND ...........................................................-0.3V to +18V
POS to GND ...........................................................-0.3V to +18V
CD1 to MAIN ..........................................................+0.3V to -12V
CD1 to GND .............................................................+0.3V to -6V
CD2 to CD1 ..............................................................+0.3V to -6V
NEG, CD2 to GND..................................................+0.3V to -12V
C1P, C2P to GND ...........................................-0.3V to (V IN + 6V)
PMP, PMPB to GND ................................-0.3V to (V MAIN + 0.3V)
GND to PGND .......................................................-0.3V to +0.3V
I LX ...................................................................................1.0A RMS
Continuous Power Dissipation (T A = +70 ° C)
24-Pin 4mm x 4mm Thin QFN
(derate 20.8mW/ ° C above +70 ° C) .............................1667mW
Short-Circuit Duration (MAIN, POS, NEG)..................Continuous
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
NEG to CD2..............................................................+0.3V to -6V
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.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 3, V IN = 3V, CTRL = ONBIAS = IN, T A = -40 ° C to +85 ° C, typical values are at T A = +25 ° C, unless otherwise noted. Note 1)
PARAMETER
IN Operating Supply Range
IN Undervoltage-Lockout (UVLO)
Threshold
IN Quiescent Current
IN Shutdown Current
Thermal Shutdown
CONDITIONS
Rising edge, 30mV hysteresis
Switching
V CTRL = V ONBIAS = 0V
Rising temperature, 20°C hysteresis (typ)
T A = +25°C
T A = +85°C
MIN
2.7
2.1
TYP
2.35
3
0.4
1
+160
MAX
5.5
2.6
5
1
UNITS
V
V
mA
μA
°C
MAIN CHARGE PUMP WITH LINEAR REGULATOR
Main Pump Efficiency
I LOAD = 25mA, V IN = 3.9V
83
%
V DD Charge-Pump Open-Loop
Output Impedance
Operating Frequency
V IN ≥ 3.8V in 1.5x mode
V IN ≥ 3.0V in 2.0x mode
200
9
7.5
250
20
20
300
Ω
kHz
V DD Output Voltage
Charge-pump pause threshold
5.2
5.5
5.7
V
V IN Falling Switchover to 2.0x Mode
V IN Rising Switchover to 1.5x Mode
Quiescent Current
(Charge Pumps Only)
V CTRL = 0V, ONBIAS = IN
3.75
3.8
3.85
3.9
0.87
3.95
4.0
1.30
V
V
mA
V MAIN Regulation Voltage
Discharge Switch Resistance
at V MAIN
0.1mA < I LOAD < 25mA
V ONBIAS = 0V
4.9
5.0
1
5.1
3
V
k Ω
POS, NEG CHARGE PUMPS
Operating Frequency
Duty Cycle
POS Pump Efficiency
I LOAD = 100μA
12.0
15.6
50
97
19.5
kHz
%
%
POS Output Voltage
POS Discharge Switch Resistance
NEG Pump Efficiency
I LOAD = 0 to 100μA
V ONBIAS = 0V
I LOAD = -100μA
13.9
14.7
3
97
15.3
6
V
k Ω
%
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1578ETG+ | 功能描述:LED照明驱动器 Cmplete Bias & White LED Power Supply 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 |
| MAX1578ETG+T | 功能描述:LED照明驱动器 Cmplete Bias & White LED Power Supply 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 |
| MAX1578ETG-T | 功能描述:LED照明驱动器 Cmplete Bias & White LED Power Supply 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 |
| MAX1579ETG | 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 |
| MAX1579ETG+ | 功能描述:LED照明驱动器 Cmplete Bias & White LED Power Supply 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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