LTC1385 3.3V Low Power EIA/TIA-562 Transceiver

The LTC®1385 is an ultra-low power, 2-driver/2-receiver EIA / TIA-562 transceiver which operates from a single 3.3V supply. The charge pump requires only four spacesaving 0.1µF capacitors.

The transceiver operates in one of three modes: Normal, Driver Disable or Shutdown. In the Normal mode, ICC is only 200µA in the unloaded condition. In the Driver Disable mode, the charge pump is turned off, the driver outputs are forced into three-state, both receivers are kept active, and ICC drops to 35µA. In the Shutdown mode, everything is turned off and ICC drops to 0.2µA.

The LTC1385 is fully compliant with all data rate and overvoltage EIA/ TIA-562 specifications. The transceiver can operate up to 120kbaud with a 1000pF, 3k Ohm load. Both driver outputs and receiver inputs can be forced to ±25V without damage, and can survive multiple ±10kV ESD strikes.

产品特点 Features

Operates from a Single 3.3V Supply
Low Supply Current: ICC = 200µA
ICC = 35µA in Driver Disable Mode
ICC = 0.2µA in Shutdown Mode
ESD Protection Over ±10kV
Uses Small Capacitors: 0.1µF
Operates to 120kBaud
Output Overvoltage Does Not Force Current Back into Supplies
EIA/TIA-562 I/O Lines Can Be Forced to ±25V Without Damage
Pin Compatible with LT 1180A

参数

应用

Notebook Computers
Palmtop Computers

典型应用图

LTC1385 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC1385CG	SSOP	20	C	$4.85	$3.80
LTC1385CG#PBF	SSOP	20	C	$4.85	$3.80
LTC1385CG#TR	SSOP	20	C		$3.90
LTC1385CG#TRPBF	SSOP	20	C		$3.90
LTC1385CN	PDIP	18	C	$4.35	$3.40
LTC1385CN#PBF	PDIP	18	C	$4.35	$3.40
LTC1385CSW	SO	18	C	$4.35	$3.40
LTC1385CSW#PBF	SO	18	C	$4.35	$3.40
LTC1385CSW#TR	SO	18	C		$3.50
LTC1385CSW#TRPBF	SO	18	C		$3.50
LTC1385IG	SSOP	20	I	$5.60	$4.35
LTC1385IG#PBF	SSOP	20	I	$5.60	$4.35
LTC1385IG#TR	SSOP	20	I		$4.45
LTC1385IG#TRPBF	SSOP	20	I		$4.45
LTC1385IN	PDIP	18	I	$5.00	$3.90
LTC1385IN#PBF	PDIP	18	I	$5.00	$3.90
LTC1385ISW	SO	18	I	$5.00	$3.90
LTC1385ISW#PBF	SO	18	I	$5.00	$3.90
LTC1385ISW#TR	SO	18	I		$4.00
LTC1385ISW#TRPBF	SO	18	I		$4.00

LTC1385 数据手册及相关资料下载

数据手册 (英文) : LTC1385 - 3.3V Low Power EIA/TIA-562 Transceiver.PDF
设计要点 (英文) : DN14 - Extending the Applications of 5V Powered RS232 Transceivers.PDF
设计要点 (英文) : DN27 - Design Considerations for RS-232 Interfaces.PDF
设计要点 (英文) : DN29 - A Single Supply RS232 Interface for Bipolar A to D Converters.PDF
设计要点 (英文) : DN64 - RS232 Transceivers for Hand Held Computers Withstand 10kV ESD.PDF
设计要点 (英文) : DN71 - Regulator Circuit Generates Both 3.3V and 5V Outputs from 3.3V or 5V to Run Computers and RS232.PDF
设计要点 (英文) : DN75 - RS232 Interface Circuits for 3.3V Systems.PDF
设计要点 (英文) : DN80 - ESD Testing for RS232 Interface Circuits.PDF
可靠性数据 : R277 Reliability Data .PDF
产品选型卡 : LTM2882 - Isolated RS232 + 1W Power.PDF
产品选型卡 : RS232 Quick Guide.PDF