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参数资料
| 型号： | MAX1543ETP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC DC-DC CONV TFT-LCD 20-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 控制器，TFT LCD |
| 输入电压： | 2.6 V ~ 5.5 V |
| 输出数： | 2 |
| 输出电压： | 2.6 V ~ 13 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
TFT LCD DC-to-DC Converter with
Operational Amplifiers
ABSOLUTE MAXIMUM RATINGS
IN, CTL, COMP, FB, DEL, FREQ (MAX1543)
to AGND ...............................................................-0.3V to +6V
COMP, FB, DEL to AGND .............................-0.3V to (IN + 0.3V)
PGND to AGND ..................................................................±0.3V
LX to PGND ............................................................-0.3V to +14V
SUP, POS1, NEG1, OUT1, POS2,
NEG2, OUT2 to AGND .......................................-0.3V to +14V
POS1, NEG1, OUT1, POS2, NEG2,
OUT2 to AGND ......................................-0.3V to (SUP + 0.3V)
SRC, COM to AGND...............................................-0.3V to +30V
SRC to COM ...........................................................-0.3V to +30V
SRC to DRN (MAX1543).........................................-0.3V to +30V
DRN (MAX1543) to AGND .........................-0.3V to (SRC + 0.3V)
DRN (MAX1543) to COM.........................................-30V to +30V
MAX1542 COM RMS Output Current ...............................+75mA
MAX1543 COM RMS Output Current ...............................±50mA
OUT1, OUT2 Continuous Output Current.........................±75mA
Continuous Power Dissipation (T A = +70 ° C)
20-Pin Thin QFN 5mm x 5mm
(derate 20.8mW/ ° C above +70 ° C) .............................1667mW
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
COM to AGND ...........................................-0.3V to (SRC + 0.3V)
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
(V IN = 3V, V SUP = 8V, V SRC = 28V, FREQ = IN (MAX1543), PGND = AGND = 0, T A = 0°C to +85°C , typical values at T A = +25 ° C,
unless otherwise noted.)
PARAMETER
IN Supply Range
IN Undervoltage Lockout
Threshold
IN Quiescent Current
SYMBOL
V IN
V UVLO
I IN
CONDITIONS
V IN rising
V IN falling
V FB = 1.3V, LX not switching
V FB = 1.1V, LX switching
MIN
2.6
2.3
2.2
TYP
2.5
2.35
0.45
3.6
MAX
5.5
2.7
2.5
0.65
6.5
UNITS
V
V
mA
MAX1542
55
Duration to Trigger Fault
Condition
Thermal Shutdown
MAX1543
Rising edge
Hysteresis
FREQ = AGND
FREQ = IN
51
55
160
15
ms
° C
MAIN STEP-UP REGULATOR
Output Voltage Range
V MAIN
MAX1542
V IN
1020
1200
13
1380
V
Operating Frequency
f OSC
MAX1543
FREQ = AGND
512
600
768
kHz
FREQ = IN
1020
1200
1380
Oscillator Maximum Duty Cycle
82
87
92
%
FREQ Input Low Voltage
FREQ Input High Voltage
MAX1543, V IN = 2.6V to 5.5V
MAX1543, V IN = 2.6V to 5.5V
0.7 x
V IN
0.3 x V IN
V
V
FREQ Pulldown Current
MAX1543, V FREQ = 1.0V
3.5
5
6.5
μA
FB Regulation Voltage
FB Fault Trip Level
V FB
No load
V FB falling
T A = +85 ° C
T A = 0 ° C to +85 ° C
1.224
1.222
0.96
1.240
1.240
1
1.256
1.258
1.04
V
V
FB Load Regulation
0 ≤ I MAIN ≤ full load
-1
%
FB Line Regulation
V IN = 2.6V to 5.5V
-0.08
±0.15
%/V
2
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1543EVKIT | 功能描述:显示开发工具 MAX1542/3 Eval Kit RoHS:否 制造商:4D Systems 产品:4Display Shields 工具用于评估:?OLED-160-G1, ?OLED-160-G2 接口类型:Serial 工作电源电压:5 V |
| MAX1544ETL | 功能描述:电压模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1544ETL+ | 功能描述:电压模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1544ETL+T | 功能描述:电压模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1544ETL+TG075 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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