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参数资料
| 型号： | MAX8678EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX8678 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 24mA |
| 输出及类型： | 4，非隔离 |
| 特点： | 可调光，带单声道 1.1W 级 AB 音频放大器 |
| 输入电压： | 2.7 ~ 5.5 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX8678 |
White LED Charge Pump with
1.1W Audio Amplifier
Typical Operating Characteristics (continued)
(V IN = 3.2V, R L = 8 Ω , T A = +25°C, unless otherwise noted.)
LINE TRANSIENT WITH MODE
LED SINGLE-WIRE PULSE DIMMING
MAX8678 toc16
TRANSITION
MAX8678 toc17
V ENLED
5V/div
V IN
3.8V
3.8V
1V/div
3.4V
I LED
20mA/div
I LED
(TOTAL)
I IN
100mA/div
200mA/div
4 LEDs AT 24mA EACH
200ms/div
200 μ s/div
Pin Description
PIN
1
2
3
4
5
6
7
8
NAME
IN
GND
A+
A-
ENAMP
OUT+
OUT-
BIAS
FUNCTION
Analog Supply-Voltage Input. The input voltage range is 2.7V to 5.5V. Connect a 4.7μF ceramic
capacitor from IN to GND as close as possible to the IC. IN is high impedance during shutdown.
Ground. Connect GND to the system ground plane. Do not connect GND to the exposed paddle.
Noninverting Differential Audio Input
Inverting Differential Audio Input
Amplifier Enable and Gain Control. ENAMP is a serial-pulse interface logic input to control on/off and
gain settings of the audio amplifier.
Audio Amplifier Positive Output
Audio Amplifier Negative Output
DC Bias Bypass. Connect a 0.1μF ceramic capacitor from BIAS to GND as close as possible to the IC.
LED Current Regulators. Current flowing into LED_ is regulated to the current programmed by the
9–12
LED1–LED4 serial-pulse interface. Connect LED_ to the cathodes of the corresponding external LEDs. LED_ is high
impedance during shutdown. If unused, connect LED_ to IN to disable the regulator.
13
14
15
16
—
NEG
C-
C+
ENLED
EP
Charge-Pump Negative Output. Connect a 1μF ceramic capacitor from NEG to GND. In shutdown, an
internal 10k Ω resistor pulls NEG to GND.
Transfer Capacitor Negative Connection. Connect a 1μF ceramic capacitor from C+ to C-.
Transfer Capacitor Positive Connection. Connect a 1μF ceramic capacitor from C+ to C-.
LED Enable and Dimming Control. ENLED is a serial-pulse interface logic input to control on/off and
dimming of the LED regulators.
Exposed Paddle. Connect the exposed paddle to NEG directly under the IC.
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8678EVKIT+ | 功能描述:电源管理IC开发工具 MAX8678 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX867C/D | 功能描述:直流/直流开关转换器 Adjustable Output Single-Cell DC-DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX867ESA | 功能描述:直流/直流开关转换器 3.3/5/AdjV 1-Cell DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX867ESA+ | 功能描述:直流/直流开关转换器 3.3/5/AdjV 1-Cell DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX867ESA+T | 功能描述:直流/直流开关转换器 3.3/5/AdjV 1-Cell DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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