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参数资料
| 型号： | MAX8834ZEWP+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 21/44页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR BCKLGT FLASH 20-WLP |
| 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），低端，PWM，升压（升压） |
| 输出数： | 3 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 3.6MHz ~ 4.4MHz |
| 电源电压： | 2.5 V ~ 5.5 V |
| 输出电压： | 5.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFBGA，WLBGA |
| 供应商设备封装： | 20-WLP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
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MAX8834Y/MAX8834Z
Adaptive Step-Up Converters
with 1.5A Flash Driver
SDA BY MASTER
D7
D6
D0
SDA
NOT ACKNOWLEDGE
SDA BY SLAVE
SCL
SCL
ACKNOWLEDGE
1
2
8
9
CLOCK PULSE FOR
START
STOP
START CONDITION
ACKNOWLEDGEMENT
CONDITION
Figure 17. START and STOP Conditions
CONDITION
Figure 18. Acknowledge
Write Operations
The MAX8834Y/MAX8834Z recognize the write byte
protocol as defined in the SMBus? specification and
shown in section A of Figure 19. The write byte proto-
col allows the I 2 C master device to send 1 byte of data
to the slave device. The write-byte protocol requires a
register pointer address for the subsequent write. The
MAX8834Y/MAX8834Z acknowledge any register
pointer even though only a subset of those registers
actually exists in the device. The write byte protocol is
as follows:
1) The master sends a start command.
2) The master sends the 7-bit slave address followed
by a write bit.
3) The addressed slave asserts an acknowledge by
pulling SDA low.
4) The master sends an 8-bit register pointer.
5) The slave acknowledges the register pointer.
6) The master sends a data byte.
7) The slave updates with the new data.
8) The slave acknowledges the data byte.
9) The master sends a STOP (P) condition.
In addition to the write-byte protocol, the MAX8834Y/
MAX8834Z can write to multiple registers as shown in
section B of Figure 19. This protocol allows the I 2 C
master device to address the slave only once and then
send data to a sequential block of registers starting at
the specified register pointer.
SMBus is a trademark of Intel Corp.
Maxim Integrated
Use the following procedure to write to a sequential
block of registers:
1) The master sends a start command.
2) The master sends the 7-bit slave address followed
by a write bit.
3) The addressed slave asserts an acknowledge by
pulling SDA low.
4) The master sends the 8-bit register pointer of the
first register to write.
5) The slave acknowledges the register pointer.
6) The master sends a data byte.
7) The slave updates with the new data.
8) The slave acknowledges the data byte.
9) Steps 6 to 8 are repeated for as many registers in
the block, with the register pointer automatically
incremented each time.
10) The master sends a STOP condition.
Read Operations
The method for reading a single register (byte) is shown
in section A of Figure 20. To read a single register:
1) The master sends a start command.
2) The master sends the 7-bit slave address followed
by a write bit.
3) The addressed slave asserts an acknowledge by
pulling SDA low.
4) The master sends an 8-bit register pointer.
21
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相关代理商/技术参数 |
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| MAX8836ZEREEE+T | 功能描述:电流型 PWM 控制器 1.2A PWM Step-Down Converter RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX8836ZEWEEE+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8836ZEWEEE+T | 制造商:Maxim Integrated Products 功能描述: |
| MAX883C/D | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX883C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
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