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| 型号： | SI8250DK |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 24/32页 |
| 文件大小： | 0K |
| 描述： | DEVELOPMENT KIT FOR SI8250/1/2 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，隔离 |
| 输出电压： | 1V |
| 电流 - 输出： | 35A |
| 输入电压： | 36 ~ 75 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 400kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板，线缆，CD，电源，USB 适配器 |
| 已用 IC / 零件： | SI8250，SI8251，SI8252 |
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Si8250/1/2
Table 17. Pin Descriptions (Continued)
Name
QFN-28
LQFP-32
Type
Description
Pin #
Pin#
P0.5
P0.4
P0.3/XCLK
P0.2
P0.1
P0.0
PH6
PH5
PH4
V DD
GND
PH3
PH2
PH1
17
18
19
20
21
22
23
24
25
—
—
26
27
28
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
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 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
7.1. Pin Functions
7.1.1. 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.
7.1.2. I PK
Input to the peak current detector for pulse-by-pulse
current limiting and overcurrent protection shutdown
control.
7.1.3. V SENSE
ADC1 inverting input. This is the voltage feedback input
for the Si8250. The maximum allowable signal is V REF .
7.1.4. GND
Digital ground for the 32LQFP package and the main
ground for the 28MLP package.
7.1.5. GNDA
Analog ground for 32LQFP only.
7.1.6. V DD
Digital supply voltage for the 32LQFP package and
main supply voltage for the 28MLP package.
7.1.7. V DDA
Analog supply for 32LQFP only.
7.1.8. P1.0/V IN 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 (100 kHz) to prevent aliasing. Isolated
applications may use this input as general-purpose
digital I/O or analog input.
7.1.9. 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.
7.1.10. 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 (25 MHz nominal)
clock input.
7.1.11. 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 V DD .
24
Rev. 1.0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI8250-IM | 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-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 |
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