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参数资料
| 型号： | SI8250-IM |
| 厂商： | SILICON LABORATORIES |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | DIGITAL POWER CONTROLLER |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, QCC28 |
| 封装： | 5 X 5 MM, ROHS COMPLIANT, QFN-28 |
| 文件页数： | 24/30页 |
| 文件大小： | 932K |
| 代理商： | SI8250-IM |
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Si8250/1/2
24
Preliminary Rev. 0.8
Pin Functions:
RST/C2CK: CPU reset or debug tool clock. Driving this pin low resets the CPU. This pin is also clocked by the USB
debug adaptor during debug.
IPK: Input to the peak current detector for pulse-by-pulse current limiting and over-current protection shutdown
control.
VSENSE: ADC1 inverting input. This is the voltage feedback input for the Si8250. The maximum allowable signal is
VREF.
GND: Digital ground for the 32LQFP package, and the main ground for the 28MLP package.
GNDA: Analog ground for 32LQFP only.
VDD: Digital supply voltage for the 32LQFP package, and main supply voltage for the 28MLP package.
VDDA: Analog supply for 32LQFP only.
P1.0/VIN or AIN0: Programmable multifunction I/O pin. This pin can be software configured to be either a Port 1
digital input or output, or an ADC0 input at AMUX address 0. If used in a non-isolated application, positive input
supply voltage must be tied to this input through a resistor divider and anti-aliasing capacitor to minimize the
frequencies above fS/2 (100Khz) to prevent aliasing. Isolated applications may use this input as general-purpose
digital I/O or analog input.
P1.1 or AIN1–P1.7 or AIN7: Programmable multifunction I/O pins. These pins can be software configured to be a
Port 1 digital input or output, or an ADC0 input. P1.7 also serves as the debug data input (C2D) and is used during
debug by the USB debug adaptor. P1.7 may be used as general-purpose digital I/O when not in debug mode. Any
of the digital peripherals may be programmed to connect to these pins.
P0.0–P0.7: Programmable multifunction I/O pins. These pins can be software configured to be either a Port 1
digital input or output, or an ADC0 input. Any of the digital peripherals (including the ENABLE input) may be
programmed to connect to these pins. P0.3 may be programmed to serve as an external (25MHz nominal) clock
input.
PH1–PH6: DPWM gate control (complementary drive) outputs. These signals connect to the MOSFET gates
through an external gate driver. The output levels swing between ground and Vdd.
P0.7
P0.6
P0.5
P0.4
P0.3/XCLK
P0.2
P0.1
P0.0
PH6
PH5
PH4
VDD
GND
PH3
PH2
PH1
15
16
17
18
19
20
21
22
23
24
25
—
—
26
27
28
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
D I/O
D I/O
D I/O
D I/O
D I/O
D I/O
D I/O
D I/O
DOUT
DOUT
DOUT
AIN
AIN
DOUT
DOUT
DOUT
Port 0 I/O
Port 0 I/O
Port 0 I/O
Port 0 I/O
Port 0 I/O
Port 0 I/O
Port 0 I/O
Port 0 I/O or bidirectional debug data
Phase 6 switch control output
Phase 5 switch control output
Phase 4 switch control output
Power supply input
Ground
Phase 3 switch control output
Phase 2 switch control output
Phase 1 switch control output
Table 17. Pin Descriptions (Continued)
Name
QFN-28
Pin #
LQFP-32
Pin#
Type
Description
相关PDF资料 |
PDF描述 |
|---|---|
| SI8250-IQ | DIGITAL POWER CONTROLLER |
| SI8401DB-T1 | P-Channel 20-V (D-S) MOSFET, Low-Threshold |
| SI8401DB-T1-E3 | P-Channel 20-V (D-S) MOSFET, Low-Threshold |
| SI8401DB | Single P-Channel MOSFET; |
| SI8402DB | 20-V N-Channel 1.8-V (G-S) MOSFET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SI8250-IMR | 制造商:Silicon Laboratories Inc 功能描述:VOLT SUPERVISOR PWR SUPPLY 0.05V TO 0.8V 28QFN - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC DIGITAL PWR CONTROLLER 32LQFP 制造商:Silicon Laboratories Inc 功能描述:32K 28 Pin SMPS Controller |
| SI8250-IQ | 功能描述:电压监测器/监控器 SMPS Controller RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| SI8250-IQR | 制造商:Silicon Laboratories Inc 功能描述:VOLT SUPERVISOR PWR SUPPLY 0.05V TO 0.8V 32LQFP - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC DIGITAL PWR CONTROLLER 32LQFP 制造商:Silicon Laboratories Inc 功能描述:32K 32 Pin SMPS Controller |
| SI8251 | 制造商:SILABS 制造商全称:SILABS 功能描述:DIGITAL POWER CONTROLLER |
| SI8251-IM | 功能描述:功率驱动器IC SMPS Controller RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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