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SC628A
Applications Information (continued)
PCB Layout Considerations
The layout diagram in Figure 1 illustrates a proper
two-layer PCB layout for the SC628A and supporting
components. Following fundamental layout rules is
critical for achieving the performance specified in the
Electrical Characteristics table. The following guidelines
are recommended when developing a PCB layout:
?
?
?
Make all ground connections to a solid
ground plane as shown in the example layout
(Figure 3).
If a ground layer is not feasible, the following
groupings should be connected:
PGND — CIN, COUT
AGND — Ground Pad
If no ground plane is available, PGND and AGND
?
?
?
Place all bypass and decoupling capacitors —
C1, C2, CIN, and COUT as close to the device as
possible.
All charge pump current passes through IN,
OUT, and the bucket capacitor connection pins.
Ensure that all connections to these pins make
use of wide traces so that the resistive drop on
each connection is minimized.
The thermal pad should be connected to the
ground plane using multiple vias to ensure
proper thermal connection for optimal heat
transfer.
should be routed back to the negative battery
terminal as separate signals using thick traces.
GND
GND
Figure 2 — Layer 1
CIN
C2-
PGND
FL
NC
NC
C1
SC628A
C2
NC
NC
NC
EN
SDA
COUT
Figure 3 — Layer 2
Figure 1 — Recommended PCB Layout
14
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相关代理商/技术参数
SC628B
制造商:Mallory Sonalert Products Inc 功能描述:
SC628-BTR
功能描述:DC Buzzer Single Tone 2.9kHz Piezo 6 ~ 28V 80dB @ 6V, 61cm 制造商:mallory sonalert products inc. 系列:SC 包装:散装 零件状态:有效 驱动器电路:指示灯，内部驱动 输入类型:DC 电压 - 额定:- 电压范围:6 ~ 28V 频率:2.9kHz 技术:压电 工作模式:单音调 持续时间:- 声压级:80dB @ 6V，61cm 电流 - 电源:3 ~ 18mA 端口位置:顶部 工作温度:-30°C ~ 65°C 认可:cUL，UL 等级:- 安装类型:面板安装 端接:快速连接接片 - 0.250"（6.35mm） 大小/尺寸:42.9mm 直径 高度 - 安装（最大值）:* 标准包装:1
SC628CPN
功能描述:音频指示器及警报器 CHIME, 6-28VDC 2900HZ, CUL APPRVD
RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole
SC628CPNR
功能描述:音频指示器及警报器 CHIME, 6-28VDC 2900HZ, CUL APPRVD
RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole
SC628D
功能描述:音频指示器及警报器 MED CONTINUOUS 6-28V
RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole
SC628D-1
功能描述:音频指示器及警报器 6-28VDC Continuous Panel 1900Hz 80dB
RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole
SC628D-BTR
功能描述:DC Buzzer Single Tone 2kHz Piezo 6 ~ 28V 60dB @ 6V, 61cm 制造商:mallory sonalert products inc. 系列:SC 包装:散装 零件状态:有效 驱动器电路:指示灯，内部驱动 输入类型:DC 电压 - 额定:- 电压范围:6 ~ 28V 频率:2kHz 技术:压电 工作模式:单音调 持续时间:- 声压级:60dB @ 6V，61cm 电流 - 电源:6 ~ 23mA 端口位置:顶部 工作温度:-30°C ~ 65°C 认可:cUL，UL 等级:- 安装类型:面板安装 端接:快速连接接片 - 0.250"（6.35mm） 大小/尺寸:42.9mm 直径 高度 - 安装（最大值）:* 标准包装:1
SC628DJ
功能描述:音频指示器及警报器 SLOW MED INTER 6-28V
RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole