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参数资料
| 型号： | MAX1576ETG+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/14页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 24-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 恒定电流： | 是 |
| 拓扑： | 线性（LDO），PWM，切换式电容器（充电泵） |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
480mA White LED 1x/1.5x/2x Charge Pump for
Backlighting and Camera Flash
Typical Operating Characteristics (continued)
(V IN = 3.6V, EN_ = IN, Circuit of Figure 1, R SETM = 9.09k Ω , R SETF = 4.12k Ω , T A = +25°C, unless otherwise noted.)
V EN1M ,
V EN2M
SINGLE-WIRE DIMMING RESPONSE
MAX1576 toc16
5V/div
LINE-TRANSIENT RESPONSE
MAX1576 toc17
V IN
1V/div
3V
I OUT
V OUT
50mA/div
2V/div
V OUT
I OUT
1V/div
AC-COUPLED
50mA/div
0
2ms/div
40 μ s/div
Pin Description
PIN
1
2
3
4
5
6
7
9
10
8
14
11
12
13
15
16
17
NAME
OUT
ENM1
ENM2
ENF1
ENF2
LED8
LED7
LED6
LED5
GND2
GND1
LED4
LED3
LED2
LED1
SETM
SETF
FUNCTION
Output. Bypass to ground with a 4.7μF ceramic capacitor. Connect to the anodes of all the LEDs. OUT is
internally pulled to ground through a 5k Ω resistor during shutdown.
Enable and Brightness Control for LED1–LED4 (Backlight). See Table 1 and Figure 3.
Enable and Brightness Control for LED5–LED8 (Flash). See Table 2 and Figure 3.
Flash LED_ Cathode Connection and Charge-Pump Feedback. Current flowing into LED_ is based on the
ENF_ logic levels and R SETF . The charge pump regulates the lowest LED_ voltage to 0.15V. Grounding any
LED_ forces OUT to operate at approximately 5V. Connect LED_ to IN if this LED is not populated.
Ground. Connect GND_ to system ground and the ground side of the input bypass capacitor as close to the
IC as possible.
Main LED_ Cathode Connection and Charge-Pump Feedback. Current flowing into LED_ is based on the
ENM_ logic levels and R SETM . The charge-pump regulates the lowest LED_ voltage to 0.15V. Grounding any
LED_ forces OUT to operate at approximately 5V. Connect LED_ to IN if this LED is not populated.
Bias Current Set Input for LED1–LED4. The current flowing out of SETM sets the maximum (100%) bias
current into each LED. SETM is internally biased to 0.604V. Connect a resistor (R SETM ) from SETM to ground
to set the main LED current, R SETM = (233 x 0.604) / I LED(MAX) . SETM is high impedance during shutdown.
Bias Current Set Input for LED5–LED8. The current flowing out of SETF sets the maximum (100%) bias
current into each LED. SETF is internally biased to 0.604V. Connect a resistor (R SETF ) from SETF to ground
to set the flash LED current, R SETF = (708 x 0.604) / I LED(MAX) . SETF is high impedance during shutdown.
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1576ETG+ | 功能描述:LED照明驱动器 White LED 1/1.5/2x 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 |
| MAX1576ETG+T | 功能描述:LED照明驱动器 White LED 1/1.5/2x 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 |
| MAX1576ETG-T | 功能描述:LED照明驱动器 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 |
| MAX1576EVKIT | 功能描述:LED 照明开发工具 Evaluation Kit for the MAX1576 RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX1577YETA | 制造商:Maxim Integrated Products 功能描述:1.1A WHITE LED REGULATING CHARGE PU - Rail/Tube |
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