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參數(shù)資料
| 型號(hào)： | SC623ULTRT |
| 廠商： | Semtech Corporation |
| 英文描述： | LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, and SemWireTM Interface |
| 中文描述： | LED燈管理股電荷泵，4個(gè)LED，400mA的閃光LED，并SemWireTM接口 |
| 文件頁(yè)數(shù)： | 14/21頁(yè) |
| 文件大?。?/td> | 287K |
| 代理商： | SC623ULTRT |
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SC623
14
PCB Layout Considerations
The layout diagram in Figure 1 illustrates a proper
two-layer PCB layout for the SC623 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:
Place all bypass and decoupling capacitors —
C1, C2, CIN, and COUT as close to the device as
possible.
All charge pump current passes through VIN,
VOUT, 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.
Applications Information (continued)
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
should be routed back to the negative battery
terminal as separate signals using thick traces.
Joining the two ground returns at the terminal
prevents large pulsed return currents from
mixing with the low-noise return currents.
COUT
C1
C2
CIN
BL1
BL2
B
C
C2-
V
C
C
V
SWIF
A
G
B
V
V
SC623
F
FL
GND
GND
NC
NC
PGND
NC
NC
Figure 1 — Recommended PCB Layout
Figure 2 — Layer 1
Figure 3 — Layer 2
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| SC624AULTRT | LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and I2C Interface |
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| SC624AEVB | LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and I2C Interface |
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相關(guān)代理商/技術(shù)參數(shù) |
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| SC624 | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and SemWireTM Interface |
| SC624_09 | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs,and SemWireTM Interface |
| SC624A | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and I2C Interface |
| SC624A_09 | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs,and I2C Interface |
| SC624AEVB | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and I2C Interface |
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