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| 型号： | ISL6329IRZ |
| 厂商： | Intersil |
| 文件页数： | 25/38页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM SYNC BUCK DL 60QFN |
| 标准包装： | 43 |
| 应用： | 控制器，AMD SVI |
| 输入电压： | 5 V ~ 12 V |
| 输出数： | 2 |
| 输出电压： | 0.0125 V ~ 1.55 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
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ISL6329
To write to a single register in the ISL6329, the master sends a
control byte with the R/W bit set to 0, indicating a write. If it
receives an Acknowledge from the ISL6329, it sends a register
address byte representing the internal register to which it wants
to write. The ISL6329 will respond with an Acknowledge. The
master then sends a byte representing the data byte to be written
into the desired register. The ISL6329 will respond with an
Acknowledge. The master then issues a Stop condition,
indicating to the ISL6329 that the current transaction is
complete. Once this transaction completes, the ISL6329 will
immediately update and change the operating parameters on-
the-fly.
It is also possible to write to the all the registers sequentially. To
do this the master must write to register RGS0 first. This
transaction begins with the master sending a control byte with
the R/W bit set to 0. If it receives an Acknowledge from the
ISL6329, it sends the register address byte 0000_0000,
representing the internal register RGS0. The ISL6329 will
respond with an Acknowledge. After sending the data byte to
RGS0 and receiving an Acknowledge from the ISL6329, instead
of sending a Stop condition, the master sends the data byte to be
stored in register RGS1. After the ISL6329 responds with another
Acknowledge, the master can either send a Stop condition to
indicate that the current transaction is complete, or it can send
the data byte to be stored in register RGS2. After the ISL6329
responds with an Acknowledge and if the PWROK signal is low,
this process can continue with a byte being written to RGS4.
Once the last register is written to, the ISL6329 will respond with
an Acknowledge and the master would send a Stop condition,
completing the transaction. Once this transaction completes the
It is also possible for all registers to be read consecutively. To do
this the master must read from register RGS1 first. This
transaction begins with the master sending a control byte with
the R/W bit set to 0. If it receives an Acknowledge from the
ISL6329, it sends the register address byte 0000_0000,
representing the internal register RGS1. The ISL6329 will
respond with an Acknowledge. The master must then respond
with a Stop condition. After the Stop condition the master follows
with a new Start condition, and then sends a new control byte
with the R/W bit set to 1, indicating a read. The ISL6329 will
then respond by sending the master an Acknowledge, followed
by the data byte stored in register RGS1. The master must then
send an Acknowledge, and after doing so, the ISL6329 will
respond by sending the data byte stored in register RGS2. The
master must then send another Acknowledge, which the
ISL6329 will respond to by sending the data byte stored in
register RGS3. The master must then send a Not Acknowledge
followed by a Stop command, which will complete the read
transaction.
Resetting the Internal Registers
The ISL6329’s internal I 2 C registers always initialize to the states
shown in Table 6 when the controller first receives power. Once
the voltage on the VCC pin rises above the POR rising threshold
level, these registers can be changed at any time via the I 2 C
interface. If the voltage on the VCC pin falls below the POR falling
threshold, the internal registers are automatically reset to their
initial states.
TABLE 6. I 2 C REGISTER INITIAL STATES
ISL6329 will immediately update and change the operating
parameters on-the-fly.
Reading from the Internal Registers
The ISL6329 has the ability to read from both registers
separately or read from them consecutively. Prior to reading from
an internal register, the master must first select the desired
register by writing to it and sending the register’s address byte.
This process begins by the master sending a control byte with the
R/W bit set to 0, indicating a write. Once it receives an
REGISTER
RGS0
RGS1
RGS2
RGS4
RGS5
RGS6
ADDRESS
0000_0000
0000_0001
0000_0010
0000_0100
0000_0101
0000_0110
INITIAL STATE
0000_0000
0000_0000
0000_0001
0111_1100
0000_0000
0010_0001
Acknowledge from the ISL6329, it sends a register address byte
representing the internal register it wants to read from
(0000_0000 for RGS1, 0000_0001 for RGS2, etc). The ISL6329
will respond with an Acknowledge. The master must then
respond with a Stop condition. After the Stop condition, the
master follows with a new Start condition, and then sends a new
control byte with the R/W bit set to 1, indicating a read. The
ISL6329 will then respond by sending the master an
Acknowledge, followed by the data byte stored in that register.
The master must then send a Not Acknowledge followed by a
Stop command, which will complete the read transaction.
25
It is possible to reset the first three internal registers without
powering down the controller and without requiring the controller
to stop regulating and soft-start again. Simply write the initial
states to the internal registers over the I 2 C interface. To initialize
RGS4, PWROK must be low.
FN7800.0
April 19, 2011
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相关代理商/技术参数 |
参数描述 |
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| ISL6329IRZ-T | 功能描述:电压模式 PWM 控制器 6+1 PHS DL PWM CONTRLR FOR CORE RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| ISL6333ACRZ | 功能描述:IC CTRLR PWM 3PHASE BUCK 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6333ACRZ-T | 功能描述:IC CTRLR PWM 3PHASE BUCK 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6333AEVAL1Z | 制造商:Intersil Corporation 功能描述: |
| ISL6333AIRZ | 功能描述:IC CTRLR PWM 3PHASE BUCK 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:2,000 系列:- 应用:控制器，DSP 输入电压:4.5 V ~ 25 V 输出数:2 输出电压:最低可调至 1.2V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:30-TFSOP（0.173"，4.40mm 宽） 供应商设备封装:30-TSSOP 包装:带卷 (TR) |
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