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| 型号： | LTC2803IDHC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/18页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS232 DUAL 16-DFN |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 2/2 |
| 规程： | RS232 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 供应商设备封装： | 16-DFN（5x3） |
| 包装： | 带卷 (TR) |
2801234fe
LTC2801/LTC2802/
LTC2803/LTC2804
Table 3. Recommended Inductors
PART
NUMBER
ISAT
(mA)
MAX DCR
(Ω)
SIZE
(mm)
MANUFACTURER
LQH2MCN100K02L 225
1.2
2
× 1.6 × 0.95 Murata
www.murata.com
LBC2016T100K
245
0.85
2
× 1.6 × 1.6 Taiyo Yuden
www.t-yuden.com
FSLB2520-100K
220
1.1
2.5
× 2 × 1.6 Toko
www.tokoam.com
Capacitor Selection
The small size of ceramic capacitors makes them ideal for
the LTC2801 family. X5R and X7R (preferred) types are
recommendedbecausetheirESRislowandtheyretaintheir
capacitance over relatively wide voltage and temperature
ranges. Use a voltage rating of at least 10V.
Table 4. Recommended Ceramic Capacitor Manufacturers
MANUFACTURER
URL
Murata
www.murata.com
TDK
www.tdk.com
Taiyo Yuden
www.t-yuden.com
AVX
www.avxcorp.com
Kemet
www.kemet.com
Inrush Current and Supply Overshoot Precaution
In certain applications, such as battery-operated and
wall-adapter devices, fast supply slew rates are generated
when power is connected. If VCC’s voltage is greater than
4.5V and its rise time is faster than 10s, the pins VDD
and SW can exceed their ABS MAX values during start-
up. When supply voltage is applied to VCC, the voltage
difference between VCC and VDD generates inrush current
VL
VCC
GND
C1
C5
C3
TOP VIEW
= VIA
TOP VIEW
= VIA
C4
C2
L1
2801 F09
SW
CAP
VDD
GND
SCALE R1 WITH C1, C2, 1/C4
C1
220nF
L1
10H
4.5V TO 5.5V
VCC
R1
1
1/8W
C4
1F
C2
1F
INRUSH
CURRENT
2801 F08
aPPlicationS inForMation
flowing through inductor L1 and capacitors C1, C2. The
peak inrush current must not exceed 2A. To avoid this
condition, add a 1Ω resistor as shown in Figure 8. This
precaution is not relevant for supply voltages below 4.5V
or rise times longer than 10s.
Board Layout
The board layout should minimize the length and area of
the SW and CAP traces. Suggested compact layouts for
the LTC2801 family are shown in Figure 9 (a) and (b).
Figure 9. Recommended Board Layouts for (a) Single and
(b) Dual Transceiver Parts
Figure 8. Supply Overshoot Protection for Input
Supplies of 4.5V or Higher
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| LTC2803IGN-1 | 制造商:Linear Technology 功能描述:Dual Transmitter/Receiver RS-232 16-Pin SSOP N |
| LTC2803IGN-1#PBF | 功能描述:IC TXRX RS232 DUAL 16-SSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
| LTC2803IGN-1#TRPBF | 功能描述:IC TXRX RS232 DUAL 16-SSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
| LTC2804CDHC | 制造商:Linear Technology 功能描述:MS-Interface, 1.8V-5V 2D+2R 1Mbps RS232 Transceiver w/ Driver Disable |
| LTC2804CDHC#PBF | 功能描述:IC TXRX RS232 DUAL 16-DFN RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:121 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS422，RS485 电源电压:3 V ~ 3.6 V 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-DFN（3x3） 包装:管件 |
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