参数资料
型号: ISPPAC-POWR1208-01TN44I
厂商: Lattice Semiconductor Corporation
文件页数: 18/35页
文件大小: 0K
描述: IC ISP POWER MGR ANLG/LOG 44TQFP
标准包装: 160
系列: ispPAC®
应用: 电源监控器,序列发生器
输入电压: 0 V ~ 6 V
电源电压: 2.7 V ~ 5.5 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: 44-LQFP
供应商设备封装: 44-TQFP(10x10)
包装: 托盘
Lattice Semiconductor
ispPAC-POWR1208 Data Sheet
Note that if the clock module is con?gured as “slave” (i.e. the CLK is an input), the actual time-out of the four timers
is determined by the external clock frequency.
Output Con?guration Modes
The output pins for the ispPAC-POWR1208 device are programmable for different functional modes. The four out-
puts HVOUT1-HVOUT4, can be used as FET gate drivers or be programmed as open-drain digital outputs.
Figure 1-7 explains the details of the gate driver mode.
Figure 1-7. Basic Function Diagram for an Output in Gate Driver Mode
V PP
(8-12V)
I Source
(0.5-50uA)
Output to
IC Pin
≈ 8k Ω
Digital In
From Sequence
Controller
Figure 1-7 shows an output programmed for gate driver mode. In this mode the output is a current source that is
programmable between 0.5μA to 50μA. The maximum voltage that the output level at the pin will rise is also pro-
grammable. The levels required depend on the gate-to-source threshold of the FET and the supply voltage. The
maximum level needs to be suf?cient to turn the gate-to-source threshold on and accommodate for the voltage of
the board also, since the source pin of the FET is tied to the supply of the target board. When the HVOUT pin is
sourcing current, charging a FET gate, the current is programmable between 0.5μA and 50μA. When the driver is
turned to the off state, the driver will sink current. through the 8k Ω resistor.
Predicting MOSFET Turn-on Time
Because the ispPAC-POWR1208’s MOSFET output drivers source a precise and well-de?ned output current, it
becomes possible to predict MOSFET gate rise times if one knows the value of the load capacitance presented by
the MOSFET being driven. The other method is by relating the total gate charge to the gate-to-source voltage.
1-17
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ISPPAC-POWR1208P1-01TN44I 功能描述:监控电路 PROGRAMMABLE PWR SUPPLY CONTR 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