- 您现在的位置：买卖IC网 > PDF目录16759 > ISPPAC-POWR6AT6-01S32I (Lattice Semiconductor Corporation)IC PWR MANAGER ISP GP 32-QFNS PDF资料下载
参数资料
| 型号： | ISPPAC-POWR6AT6-01S32I |
| 厂商： | Lattice Semiconductor Corporation |
| 文件页数： | 24/35页 |
| 文件大小： | 0K |
| 描述： | IC PWR MANAGER ISP GP 32-QFNS |
| 产品培训模块： | Power and Board Management Solutions |
| 标准包装： | 490 |
| 系列： | ispPAC® |
| 应用： | 电源控制器/监控器 |
| 输入电压： | -0.3 V ~ 5.9 V |
| 电源电压： | 2.8 V ~ 3.96 V |
| 电流 - 电源： | 10mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFNS（5x5） |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页
Lattice Semiconductor
ispPAC-POWR6AT6 Data Sheet
Finally, the individual lock status inputs all meet at a common NAND gate. A trim lock condition is generated when
all six trim status inputs are high causing the CLTLOCK/SMBA pin to go low. If the trim lock is lost for any monitored
trim output pin, the CLTLOCK/SMBA pin will de-assert (go open). This could be due to a failed power supply for
example, or if the ispPAC-POWR6AT6 can no longer adjust a controlled supply to speci?cation. Interrogation of the
I 2 C register determines which trim output pin lost lock. Also, the ADC can be used to measure individual supplies to
further diagnose an underlying fault.
There is an alternative path the CLTLOCK/SMBA signal can take, depending on how the ispPAC-POWR6AT6 has
been con?gured. Refer to the I 2 C/SMBus control logic box shown in Figure 3-21. When the alternative output path
is enabled in PAC-Designer, the trim lock result is ?rst sent to the I 2 C/SMBus control logic for processing before
going to the CLTLOCK/SMBA output pin. The purpose of this control logic is to make the CLTLOCK/SMBA signal
work in accordance with the SMBus Alert protocol. The main difference between the two output path alternatives is
that SMBus Alert stays set (low) until acknowledged by the host I 2 C processor. Also, an SMBus Alert is set (pulled
low) when a trim lock condition is achieved, as well as when it is lost. Either condition must be acknowledged or the
SMBus Alert condition will not go away. Note that on initial device power-on, or after an I 2 C software reset, an
SMBus Alert is blocked (no trim lock). The SMBus master must explicitly set the CLT_LOCK_STATUS bit-6 low to
begin the SMBAlert process.
SMBus SMBAlert Function
The ispPAC-POWR6AT6 provides an SMBus SMBAlert function to request service from the bus master when used
as part of an SMBus system. When the SMBAlert signal mode for closed-loop trimming is chosen in PAC-Designer,
the CLTLOCK/SMBA output pin will go low whenever the trim lock condition status changes. The reason for this is
to report both when all outputs are in trim lock and when one or more trim output pins lose trim lock.
When a selected (unmasked) closed-loop trim output loses its locked status, servicing the resulting SMBus Alert
and interrogating the I 2 C closed-loop trim register will reveal which trim output pin(s) that are involved. After
acknowledgement by the host I 2 C processor, the CLTLOCK/SMBA pin will be de-asserted until another change in
CLTLOCK/SMBA trim status occurs.
After initial device turn-on and power-on reset (POR) is complete, the SMBA bit in the I 2 C register (0x00, bit-6) is
set high or “1”. The SMBAlert function of the ispPAC-POWR6AT6 is effectively suspended until this location has
been overwritten with a low or “0”. The purpose of this is to prevent output to the CLTLOCK/SMBA pin before the
bus master or host processor is ready to process SMBAlerts.
Note that if closed loop trimming is enabled and completes before this action is performed, the initial trim lock indi-
cation (as an SMBAlert) will not occur. If this happens, trim status can still be interrogated, however. Reading the
I 2 C trim status register to see that all trim bits are high (bit-1 to bit-6) is a valid indication that trim lock has been
achieved. Otherwise, the CLTENb pin must be held high until after the I 2 C SMBA bit is written low and then enabled
afterwards to insure detection of the initial trim lock status with an SMBAlert.
After the SMBA bit has been set low, any subsequent change in trim lock status will be reported with an SMBAlert
output to the CLTLOCK/SMBA pin. To process an SMBAlert, the following steps must be performed to service the
alert and resume monitoring for the next change in trim lock status:
The typical ?ow for an SMBAlert transaction is as follows (Figure 3-22):
1. I 2 C closed loop trim register SMBA bit is forced to high by internal ispPAC-POWR6AT6 control logic when-
ever the trim lock status changes
2. ispPAC-POWR6AT6 closed-loop trim control logic pulls the CLTLOCK/SMBA pin low
3. Master responds to interrupt from SMBA line
4. Master broadcasts a read operation by sending the SMBus Alert Response Address (ARA, 18h)
5. ispPAC-POWR6AT6 responds to the ARA request by transmitting its device address
3-24
相关PDF资料 |
PDF描述 |
|---|---|
| H3DDH-3436G | IDC CABLE - HKR34H/AE34G/HKR34H |
| AD780BN | IC VREF SERIES SHUNT PREC 8-PDIP |
| SDR0805-4R7ML | INDUCTOR POWER 4.7UH 20% SMD |
| H8MMS-1018M | DIP CABLE - HDM10S/AE10M/HDM10S |
| H6MMS-1018M | DIP CABLE - HDM10S/AE10M/HDM10S |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ispPAC-POWR6AT6-01SN32I | 功能描述:监控电路 Prec Prog Pwr Supply Seq Mon Trim IND RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| ISPS5E44MFA | 功能描述:CONN PLUG MALE 4POS GOLD IDC 制造商:panduit corp 系列:IndustrialNet? 包装:散装 零件状态:在售 连接器类型:插头，公引脚 针脚数:4 外壳尺寸 - 插件:M12-4 外壳尺寸，MIL:- 安装类型:自由悬挂 端接:IDC 紧固类型:有螺纹 朝向:D 侵入防护:IP65/67 - 防尘，耐水，防水 外壳材料，镀层:锌铸件，镀镍 触头镀层:金 特性:- 电压 - 额定:50V 额定电流:4A 触头镀层厚度:- 工作温度:-25°C ~ 85°C 标准包装:1 |
| ISPS688FA | 功能描述:8-POSITION, INDUSTRIALNET, RJ45 制造商:panduit corp 系列:IndustrialNet? 包装:散装 零件状态:在售 连接器类型:插头 电缆类型:圆形线缆，实心或绞合导线 针脚/触头数:8p8c（RJ45，以太网） 特性:线缆管理 屏蔽:屏蔽 等级:Cat6a 侵入防护:IP20 端接:IDC 长度:2.059"（52.30mm） 颜色:- 线规:22-27 AWG 触头镀层:金 触头镀层厚度:31.5μin（0.80μm） 触头材料:磷青铜 外壳材料:聚碳酸脂（PC） 屏蔽材料:黄铜 标准包装:1 |
| ISPS688FAS | 功能描述:8-POSITION, INDUSTRIALNET, RJ45 制造商:panduit corp 系列:IndustrialNet? 包装:散装 零件状态:在售 连接器类型:插头 电缆类型:圆形线缆，实心或绞合导线 针脚/触头数:8p8c（RJ45，以太网） 特性:线缆管理 屏蔽:屏蔽 等级:Cat6a 侵入防护:IP20 端接:IDC 长度:2.059"（52.30mm） 颜色:- 线规:22-27 AWG 触头镀层:金 触头镀层厚度:31.5μin（0.80μm） 触头材料:磷青铜 外壳材料:聚碳酸脂（PC） 屏蔽材料:黄铜 标准包装:1 |
| ISP-STM32F | 制造商:STMicroelectronics 功能描述:STM32ISP downloadtool 制造商:STMicroelectronics 功能描述:STM32ISP Download instrument |
发布紧急采购，3分钟左右您将得到回复。