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参数资料
| 型号： | MAX1543ETP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/20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
Typical Operating Characteristics (continued)
(V IN = 3.3V, V MAIN = 8V, f OSC = 1.2MHz, T A = +25 ° C, unless otherwise noted.)
OPERATIONAL AMPLIFIER
LARGE-SIGNAL STEP RESPONSE
MAX1542 toc23
POS_
OPERATIONAL AMPLIFIER
SMALL-SIGNAL STEP RESPONSE
MAX1542 toc24
CHI AMPL
50mV/div
AC-COUPLED
CH2 + OVER
6.234%
V OUT_
1V/div
A V = 1
1 μ s/div
4.86V
CHI + OVER
4.970%
OUT_
50mV/div
AC-COUPLED
V SUP = 8V, A V = 1
200ns/div
CH2 - OVER
2.352%
Pin Description
MAX1542
1
2
3, 15, 20
—
PIN
MAX1543
1
2
—
3
NAME
COM
SRC
N.C.
I.C.
FUNCTION
Internal High-Voltage MOSFET Switch Common Terminal. Do not allow the voltage on
COM to exceed V SRC .
Switch Input. Source of the internal high-voltage P-channel MOSFET. Bypass SRC to
PGND with a minimum of 0.1μF close to the pins.
No Connection. Not internally connected.
Internal Connection. Make no connection to this pin.
Power Ground. PGND is the source of the main boost N-channel power MOSFET. Connect
4
4
PGND
PGND to the output capacitor ground terminals through a short, wide PC board trace.
Connect to analog ground (AGND) underneath the IC.
5
6
7
8
9
10
11
12
13
5
6
7
8
9
10
11
12
13
AGND
POS1
NEG1
OUT1
OUT2
NEG2
POS2
SUP
LX
Analog Ground. Connect to power ground (PGND) underneath the IC.
Operational Amplifier 1 Noninverting Input
Operational Amplifier 1 Inverting Input
Operational Amplifier 1 Output
Operational Amplifier 2 Output
Operational Amplifier 2 Inverting Input
Operational Amplifier 2 Noninverting Input
Operational Amplifier Power Input. Positive supply rail for the OUT1 and OUT2 amplifiers.
Typically connected to V MAIN . Bypass SUP to AGND with a 0.1μF capacitor.
Power MOSFET N-Channel Drain and Switching Node. Connect the inductor and catch
diode to LX and minimize the trace area for lowest EMI.
_______________________________________________________________________________________
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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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