參數(shù)資料
型號： MAX3218CAP+T
廠商： Maxim Integrated Products
文件頁數(shù)： 9/12頁
文件大?。?/td> 0K
描述： IC TXRS RS-232 W/SHTDWN 20SSOP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,000
類型： 線路收發(fā)器
驅(qū)動器/接收器數(shù)： 2/2
規(guī)程： RS232
電源電壓： 1.8 V ~ 4.25 V
安裝類型： 表面貼裝
封裝/外殼： 20-SSOP（0.209"，5.30mm 寬）
供應商設備封裝： 20-SSOP
包裝： 帶卷 (TR)
MAX3218
Diode Selection
Key diode specifications are fast recovery time (<10ns),
average current rating (>100mA), and peak current rat-
ing (>350mA). Inexpensive fast silicon diodes, such as
the 1N6050, are generally recommended. More expen-
sive Schottky diodes improve efficiency and give slightly
better performance at very low V CC voltages. Table 1
lists suppliers of both surface-mount and through-hole
diodes. 1N914s are usually satisfactory, but specifica -
tions and performance vary widely with different manu-
facturers.
Capacitor Selection
Use capacitors with values at least as indicated in
Figure 1. Capacitor C2 determines the ripple on V+, but
not the absolute voltage. Capacitors C1 and C3 deter -
mine both the ripple and the absolute voltage of V-.
Bypass VCC to GND with at least 1 F (C4) placed close
to pins 5 and 6. If the V CC line is not bypassed else -
where (e.g., at the power supply), increase C4 to 4.7F.
You may use ceramic or polarized capacitors in all
locations. If you use polarized capacitors, tantalum
types are preferred because of the high operating fre-
quency of the power supplies (about 250kHz). If alu-
minum electrolytics are used, higher capacitance
values may be required.
1A Supply Current, 1.8V to 4.25V-Powered
RS-232 Transceiver with AutoShutdown
6
_______________________________________________________________________________________
MANUFACTURER
PHONE
PART NUMBER
FAX
USA (814) 237-1431
LQH4N150K-TA
Murata-Erie
USA (814) 238-0490
USA (708) 956-0666
Japan (03) 3607-5111
CD43150
Sumida
USA (708) 956-0702
Japan (03) 3607-5428
USA (508) 853-5000
TMPD6050LT
Allegro
USA (508) 853-7556
USA (708) 803-6100
Japan (03) 3278-5111
NLC453232T-150K
TDK
USA (708) 803-6296
Japan (03) 3278-5358
USA (516) 435-1110
CMPSH-3 (Schottky)
Central Semiconductor
USA (516) 435-1824
USA (408) 749-0510
MMBD6050LT1 (silicon)
Motorola
USA (408) 991-7420
USA (401) 762-3800
PMBD6050 (silicon)
Philips
USA (401) 767-4493
USA (408) 749-0510
1N6050 (silicon),
1N5817 (Schottky)
Motorola
USA (408) 991-7420
Table 1. Suggested Component Suppliers
GND
T2
T1
T2OUT
R1IN
R2IN
T1OUT
C1-
C1+
V-
T2IN
R1OUT
R2OUT
T1IN
14
18
C3
1
F
C1
0.47
F
C4
1
F
C2
1
F
16
15
13
12
11
5, 17, 20
VCC
3
61
19
4
2
7
8
9
10
1.8V to
4.25V
LX
15
H
1N6050
V+
FORCEON
INVALID
FORCEOFF
5k
R1
R2
MAX3218
Figure 1. Typical Operating Circuit
Inductors
Diodes—Surface-Mount
Diodes—Through-Hole
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相關代理商/技術參數(shù)
參數(shù)描述
MAX3218CPP 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3218CPP+ 功能描述:RS-232接口集成電路 1uA 1.8-4.25V Tcvr w/AutoShutdown RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3218CWP 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3218CWP+ 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3218CWP+T 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
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