DC1747A-A Linear Technology, DC1747A-A Datasheet - Page 20

• Manufacturer Part Number: DC1747A-A
• Description: EVALUATION LOW EM1 KIT LTM2882-3
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC1747A-A

• Main Purpose: Interface, Transceiver RS-232
• Embedded: No
• Utilized Ic / Part: LTM2882
• Primary Attributes: 3V Supply, Dual, Isolated, Transceiver + Power
• Kit Contents: Board, Datasheet
• Tool / Board Applications: Interface-Backplane, PCI, PCI Express, RS-XXX, Digital & Opto Isolator
• Mcu Supported Families: LTM2882
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Secondary Attributes: -

LTM2882
Typical applicaTions
relaTeD parTs
PART NUMBER
LTM2881
LTM2883
LTC2870/LTC2871
LTC2804
LTC1535
20
3.3V (LTM2882-3)
5V (LTM2882-5)
Figure 14. Isolated RS232 Interface with Handshaking
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
µC
R
T
X
X
P
P
D
D
Y
Z
DESCRIPTION
Isolated RS485/RS422 µModule Transceiver with
Low EMI Integrated DC/DC Converter
SPI/Digital µModule Isolator with Adjustable ±12.5V
and 5V Regulated Power
RS232/RS485 Multiprotocol Transceivers with
Integrated Termination
1Mbps RS232 Transceiver
Isolated RS485 Transceiver
PWMA
PWMB
3.3V (LTM2882-3)
ON
DIN
T1IN
R2OUT
T2IN
R2OUT
5V (LTM2882-5)
V
●
L
FAX: [phone]
RESET
GND
V
CC
FAULT
LTM2882
ON
DIN
T1IN
R1OUT
T2IN
R2OUT
V
Figure 16. Isolated Gate Drive with Overcurrent Detection
L
GND
GND2
V
V
CC
T1OUT
T2OUT
●
DOUT
CC2
R1IN
R2IN
www.linear.com
DE
LTM2882
R
T
RTS
CTS
PERIPHERAL
X
X
GND2
V
T1OUT
T2OUT
2882 F14
CC2
DOUT
R1IN
R2IN
470pF
DE
COMMENTS
20Mbps, ±15kV HBM ESD, 2500V
Up to 10MHz, ±10kV HBM ESD, 2500V
20Mbps RS485 and 500kbps RS232, ±26kV ESD, 3V to 5V Operation
Dual Channel, Full-Duplex, ±10kV HBM ESD
2500 V
IRLML6402
IRLML2402
0V
0V
1.62V TO 5.5V
OFF
RMS
ON
V
V
1k
L
L
Figure 15. Isolated Dual Inverting Level Translator
Isolation with External Transformer Driver
3k
3k
ON
DIN
T1IN
R1OUT
T2IN
R2OUT
V
3.3V (LTM2882-3)
L
5V (LTM2882-5)
CMPT2369-LTV
GND
V
CC
47pF
1k
2882 F16
LTM2882
LOGIC
LEVEL
GND2
FETS
RMS
R
+V
ILIM
S
Isolation with 1W Power
RMS
 LINEAR TECHNOLOGY CORPORATION 2010
= 0.6/MAX CURRENT
T1OUT
T2OUT
DOUT
R1IN
R2IN
2882 F15
Isolator
DE
LT 0311 REV B • PRINTED IN USA
3V TO 25V
3V TO 25V
–25V TO 0V
–25V TO 0V
2882fb