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| 型号： | MAX749ESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/12页 |
| 文件大小： | 0K |
| 描述： | IC SUPPLY LCD BIAS ADJ 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | LCD 显示器 |
| 电流 - 电源： | 60µA |
| 电源电压： | 2 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
Digitally Adjustable LCD Bias Supply
____________________________Typical Operating Characteristics (continued)
(T A = +25°C, L = 47μH, unless otherwise noted.)
LOAD-TRANSIENT RESPONSE
LINE-TRANSIENT RESPONSE
OUTPUT
VOLTAGE
LOAD
CURRENT
100mV AC /div
10mA/div
OUTPUT
VOLTAGE
INPUT
VOLTAGE
100mV AC /div
1 V/div
0mA
V OUT = -15V
TRANSISTOR = ZTX750
50 μ s/div
V OUT = -15V
TRANSISTOR = ZTX750
V OUT = -15V
I LOAD = 5mA
50ms/div
0V
TRANSISTOR = ZTX750
______________________________________________________________Pin Description
PIN
1
2
3
4
5
6
7
8
NAME
V+
ADJ
CTRL
FB
GND
DLOW
DHI
CS
FUNCTION
+2V to +6V Input Voltage to power the MAX749 and external circuitry. When using an external
P-channel MOSFET, V+ must exceed the MOSFET’s gate threshold voltage.
Logic Input. When CTRL is high, a rising edge on ADJ increments an internal counter. When CTRL is
low, the counter is reset to mid-scale when ADJ is high. When ADJ is low, the counter does not
change (regardless of activity on CTRL) as long as V+ is applied.
Logic Input. When CTRL and ADJ are low, the MAX749 is shut down, but the counter is not reset.
When CTRL is low, the counter is reset to mid-scale when ADJ is high. The device is always on when
CTRL is high.
Feedback Input for output full-scale voltage selection. -V OUT(MAX) = (R FB ) x (20μA) where R FB is
connected from FB to -V OUT . The device is in regulation when V FB = 0V.
Ground
Output Driver Low. Connect to DHI when using an external P-channel MOSFET. When using an
external PNP transistor, connect a resistor R BASE from DLOW to the base of the PNP to set the maxi-
mum base-drive current.
Output Driver High. Connect to the gate of the external P-channel transistor, or to the base of the
external PNP transistor.
Current-Sense Input. The external transistor is turned off when current through the sense resistor,
R SENSE , brings CS below V+ by 140mV (typ).
4
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX749ESA-TG074 | 制造商:Maxim Integrated Products 功能描述:DIGITALLY ADJUSTABLE LCD BIAS SUPPLY - Rail/Tube |
| MAX749EVKIT-SO | 功能描述:显示开发工具 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 |
| MAX-750 | 制造商:SLPOWER 制造商全称:SL Power Electronics 功能描述:MAX-750 Multiple Output |
| MAX7500EVKIT+ | 功能描述:板上安装温度传感器 MAX7500 Eval Kit RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX7500MSA | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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