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参数资料
| 型号： | MAX1577YETA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 4/11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
Typical Operating Characteristics (continued)
(V IN = 3.6V, circuit of Figure 2, R CS = 0.27 ? , Luxeon LXCL-PWF1 LED, T A = +25 ° C, unless otherwise noted.)
TYPICAL OPERATING WAVEFORMS
225
LED CURRENT vs. TEMPERATURE
1.2
LED CURRENT vs. R CS
IN 1x MODE
MAX1577 toc09
220
1.0
EN1 AND EN2 HIGH
V IN
50mV/div
(AC-COUPLED)
0.8
215
210
0.6
0.4
EN1 HIGH, EN2 LOW
V OUT
50mV/div
(AC-COUPLED)
205
R CS = 0.27 ?
EN1 LOW
0.2
EN1 LOW, EN2 HIGH
V CS
50mV/div
(AC-COUPLED)
EN2 HIGH
200
0
-40
-15
10
35
60
85
0.2
0.4
0.6
0.8
1.0
400ns/div
TEMPERATURE ( ° C)
TYPICAL OPERATING WAVEFORMS
IN 2x MODE
MAX1577 toc10
R CS ( ? )
STARTUP AND SHUTDOWN RESPONSE
MAX1577 toc11
V IN
V OUT
50mV/div
(AC-COUPLED)
50mV/div
(AC-COUPLED)
V EN1,
V EN2
V LED
2V/div
2V/div
0V
V CS
50mV/div
(AC-COUPLED)
I LED
500mA/div
0mA
400ns/div
EFFICIENCY vs. SUPPLY VOLTAGE
400 μ s/div
1200
LED CURRENT vs. PWM DUTY CYCLE
80
WITH PWM DIMMING
DIMMING RESPONSE
MAX1577 toc14
1000
70
25%
V EN1
2V/div
60
800
600
400
50
40
30
50%
75%
V LED
2V/div
0V
200
R CS = 0.27 ?
EN1 PWM
20
10
R CS = 0.27 ?
EN1 PWM
I LED
500mA/div
EN2 HIGH
EN2 HIGH
0
0
0mA
0
20
40
60
80
100
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
100 μ s/div
DUTY CYCLE (%)
SUPPLY VOLTAGE (V)
4
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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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