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參數(shù)資料
| 型號： | ISL4238EIRZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC 5DRVR/3RCVR RS232 3V 32-QFN |
| 標準包裝： | 60 |
| 類型： | 收發(fā)器 |
| 驅動器/接收器數(shù)： | 5/3 |
| 規(guī)程： | RS232 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤 |
| 供應商設備封裝： | 32-QFN 裸露焊盤（5x5） |
| 包裝： | 管件 |
13
FN8038.5
May 13, 2010
Mouse Driveability
The ISL424XE are specifically designed to power a serial
mouse while operating from low voltage supplies. Figure 11
shows the transmitter output voltages under increasing load
current. The on-chip switching regulator ensures the
transmitters will supply at least ±5V during worst case
conditions (15mA for paralleled V+ transmitters, 7.3mA for
single V- transmitter).
High Data Rates
The ISL4238E, ISL4244E, ISL4245 maintain the RS-232
±5V minimum transmitter output voltages even at high data
rates. Figure 12 details a transmitter loopback test circuit,
and Figure 13 illustrates the ISL4238E/ISL4244E loopback
test result at 120kbps. For this test, all transmitters were
simultaneously driving RS-232 loads in parallel with 1000pF,
at 120kbps. Figure 14 shows the ISL4238E/ISL4244E
loopback results for a single transmitter driving 1000pF and
an RS-232 load at 250kbps. Figure 15 illustrates the
ISL4245E loopback test result at 250kbps. For this test, all
transmitters were simultaneously driving RS-232 loads in
parallel with 1000pF, at 250kbps. Figure 16 shows the
ISL4245E loopback results for a single transmitter driving
250pF and an RS-232 load at 1Mbps. The static transmitters
were also loaded with an RS-232 receiver.
TIME (20s/DIV)
T1
T2
2V/DIV
5V/DIV
VCC = +3.3V
FORCEOFF
FIGURE 10. TRANSMITTER OUTPUTS WHEN EXITING
POWER-DOWN
C1 to C4 = 0.1F
FIGURE 11. TRANSMITTER OUTPUT VOLTAGE vs LOAD
CURRENT (PER TRANSMITTER, i.e., DOUBLE
CURRENT AXIS FOR TOTAL VOUT+ CURRENT)
TRANSMIT
T
E
R
OU
TP
U
T
VOL
T
AGE
(
V
)
LOAD CURRENT PER TRANSMITTER (mA)
024
68
10
-6
-4
-2
0
2
4
6
-5
-3
-1
1
3
5
1
3579
VOUT+
VOUT -
VCC
VOUT+
VOUT -
T1
T2
T3
VCC = 3.0V
ISL424XE
FIGURE 12. TRANSMITTER LOOPBACK TEST CIRCUIT
FIGURE 13. ISL4238E/ISL4244E LOOPBACK TEST AT 120kbps
FIGURE 14. ISL4238E/ISL4244E LOOPBACK TEST AT
250kbps (CL = 1000pF)
ISL4238E
VCC
C1
C2
C4
C3
+
CL
V+
V-
5k
TIN
ROUT
C1+
C1-
C2+
C2-
RIN
TOUT
+
VCC
0.1F
VCC
FORCEOFF
FORCEON
ISL4244E
ISL4245
T1IN
T1OUT
R1OUT
5s/DIV
VCC = +3.3V
5V/DIV.
C1 to C4 = 0.1F
T1IN
T1OUT
R1OUT
2s/DIV.
VCC = +3.3V
5V/DIV.
C1 - C4 = 0.1F
ISL4238E, ISL4244E, ISL4245E
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL4238EIRZ-T | 功能描述:IC XMITTER/RCVR ESD RS232 32-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:發(fā)射器 驅動器/接收器數(shù):4/0 規(guī)程:RS422，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) |
| ISL4241E | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers |
| ISL4241EIR | 功能描述:IC 3DRVR/5RCVR RS232 3V 32-QFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:25 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應商設備封裝:16-PDIP 包裝:管件 |
| ISL4241EIR-T | 功能描述:IC 3DRVR/5RCVR RS232 3V 32-QFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:25 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應商設備封裝:16-PDIP 包裝:管件 |
| ISL4241EIRZ | 功能描述:IC 3DRVR/5RCVR RS232 3V 32-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:發(fā)射器 驅動器/接收器數(shù):4/0 規(guī)程:RS422，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) |
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