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参数资料
| 型号： | MAX1577YETA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/11页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR BCKLGT FLASH 8-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | 线性（LDO），PWM，切换式电容器（充电泵） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，闪灯/白光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 800kHz ~ 1.25MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 3.4V，4.6V，5.1V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
1.2A White LED Regulating Charge Pump for
Camera Flashes and Movie Lights
Pin Description
PIN
1
2
3
4
5
6
7
8
—
NAME
EN1
CP
CN
EN2
GND
IN
CS
OUT
EP
FUNCTION
Control Logic Input (see Table 1)
Transfer Capacitor Positive Connection. Connect a 1μF capacitor (or 2.2μF for I OUT > 600mA) from
CP to CN.
Transfer Capacitor Negative Connection. Connect a 1μF capacitor (or 2.2μF for I OUT > 600mA) from
CP to CN.
Control Logic Input (see Table 1)
Ground
Input Supply Voltage. Connect IN to a battery or supply voltage from 2.7V to 5.5V. Connect a 4.7μF
ceramic capacitor from IN to GND.
Current-Sense Input. Connect a current-sense resistor from OUT to CS to set the output current.
Connect the anodes of the LEDs to CS and the cathodes to GND.
Output. Connect a 10μF ceramic capacitor from OUT to GND. In shutdown, OUT is pulled to GND
with an internal 5k ? resistor.
Exposed Pad. Connect the exposed pad to GND directly under the IC.
Table 1. Enable, Dimming, Voltage Mode, and Overvoltage Protection
EN1
EN2
DIMMING LEVEL
CS THRESHOLD
(V OUT - V CS )
VOLTAGE MODE
MAX1577Z MAX1577Y
MAX1577Z
OVP
MAX1577Y
0
0
1
1
0
1
0
1
Shutdown
20% Current
33% Current
100% Current
—
60mV
100mV
300mV
—
5.10V
5.10V
5.10V
—
3.40V
4.60V
5.10V
—
5.30V
5.30V
5.30V
—
5.15V
5.17V
5.30V
Note: A “0” indicates EN_ is logic low or connected to GND. A “1” indicates EN_ is logic high or connected to IN.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1577ZETA | 制造商:Maxim Integrated Products 功能描述:1.1A WHITE LED REGULATING CHARGE PUMP FOR CAM - Bulk |
| MAX1577ZETA+ | 制造商:Maxim Integrated Products 功能描述:CHG PUMP STPUP/STPDN 5.1V 1200MA 8TDFN EP - Rail/Tube |
| MAX1577ZETA+T | 功能描述:LED照明驱动器 1.2A White LED Charge Pump 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 |
| MAX1577ZETA-T | 功能描述:电荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX1577ZEVKIT | 功能描述:电荷泵 Evaluation Kit for the MAX1577Y MAX1577Z RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
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