Datasheet LTC4313-1, LTC4313-2, LTC4313-3 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 2-Wire Bus Buffers with High Noise Margin |
| Pages / Page | 20 / 5 — pin FuncTions. ENABLE (Pin 1):. GND (Pin 4):. READY (Pin 5):. SDAIN (Pin … |
| File Format / Size | PDF / 296 Kb |
| Document Language | English |
pin FuncTions. ENABLE (Pin 1):. GND (Pin 4):. READY (Pin 5):. SDAIN (Pin 6):. SCLOUT (Pin 2):. SDAOUT (Pin 7):. SCLIN (Pin 3):
Model Line for this Datasheet
- LTC4313CDD-1#PBF LTC4313CDD-1#TRPBF LTC4313CDD-2#PBF LTC4313CDD-2#TRPBF LTC4313CDD-3#PBF LTC4313CDD-3#TRPBF LTC4313CMS8-1#PBF LTC4313CMS8-1#TRPBF LTC4313CMS8-2#PBF LTC4313CMS8-2#TRPBF LTC4313CMS8-3#PBF LTC4313CMS8-3#TRPBF LTC4313IDD-1#PBF LTC4313IDD-1#TRPBF LTC4313IDD-2#PBF LTC4313IDD-2#TRPBF LTC4313IDD-3#PBF LTC4313IDD-3#TRPBF LTC4313IMS8-1#PBF LTC4313IMS8-1#TRPBF LTC4313IMS8-2#PBF LTC4313IMS8-2#TRPBF LTC4313IMS8-3#PBF LTC4313IMS8-3#TRPBF
- LTC4313CDD-1#PBF LTC4313CDD-1#TRPBF LTC4313CMS8-1#PBF LTC4313CMS8-1#TRPBF LTC4313IDD-1#PBF LTC4313IDD-1#TRPBF LTC4313IMS8-1#PBF LTC4313IMS8-1#TRPBF
Text Version of Document
LTC4313-1/LTC4313-2/ LTC4313-3
pin FuncTions ENABLE (Pin 1):
Connection Enable Input. When driven
GND (Pin 4):
Device Ground. low, the ENABLE pin isolates SDAIN and SCLIN from
READY (Pin 5):
Connection Ready Status Output. This SDAOUT and SCLOUT, asserts READY low, disables open drain N-channel MOSFET output pulls low when rise time accelerators and inhibits automatic clock and the input and output sides are disconnected. READY is stop bit generation during a stuck low fault condition. pulled high when ENABLE is high and a connection has When driven high, the ENABLE pin connects SDAIN and been established between the input and output. Connect SCLIN to SDAOUT and SCLOUT after a stop bit or bus idle a pull-up resistor, typically 10k from this pin to the bus has been detected on both busses. Driving ENABLE high pull-up supply. Leave open or tie to GND if unused. also enables automatic clock generation during a stuck low fault condition. During a stuck low fault condition, a
SDAIN (Pin 6):
Serial Bus 1 Data Input/Output. Connect rising edge on the ENABLE pin forces a connection between this pin to the SDA line on the upstream bus. Connect an SDAIN and SDAOUT and SCLIN and SCLOUT. When using external pul -up resistor or current source between this pin the LTC4313 in a Hot Swap™ application with staggered and the bus supply. The bus supply needs to be ≥ VCC for connector pins, connect a 10k resistor between ENABLE the LTC4313-1 and LTC4313-2, but not for the LTC4313-3. and GND to ensure correct functionality. Connect to VCC Refer to the Applications Information section for more if unused. details. Do not leave open.
SCLOUT (Pin 2):
Serial Bus 2 Clock Input/Output. Connect
SDAOUT (Pin 7):
Serial Bus 2 Data Input/Output. Connect this pin to the SCL bus segment where stuck low recovery this pin to the SDA bus segment where stuck low recovery is desired. Connect an external pull-up resistor or current is desired. Connect an external pull-up resistor or current source between this pin and the bus supply. The bus supply source between this pin and the bus supply. The bus supply needs to be ≥ VCC for the LTC4313-1 and LTC4313-2, but needs to be ≥ VCC for the LTC4313-1 and LTC4313-2, but not for the LTC4313-3. Refer to the Applications Informa- not for the LTC4313-3. Refer to the Applications Informa- tion section for more details. Do not leave open. tion section for more details. Do not leave open.
SCLIN (Pin 3):
Serial Bus 1 Clock Input/Output. Connect
VCC (Pin 8):
Power Supply Voltage. Power this pin from this pin to the SCL line on the upstream bus. Connect a supply between 2.9V and 5.5V. Bypass with at least an external pull-up resistor or current source between 0.01µF to GND. this pin and the bus supply. The bus supply needs to be
Exposed Pad (Pin 9, DD8 Package Only):
Exposed pad ≥ VCC for the LTC4313-1 and LTC4313-2, but not for the may be left open or connected to device GND. LTC4313-3. Refer to the Applications Information section for more details. Do not leave open. 4313123f 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
pin FuncTions ENABLE (Pin 1):
Connection Enable Input. When driven
GND (Pin 4):
Device Ground. low, the ENABLE pin isolates SDAIN and SCLIN from
READY (Pin 5):
Connection Ready Status Output. This SDAOUT and SCLOUT, asserts READY low, disables open drain N-channel MOSFET output pulls low when rise time accelerators and inhibits automatic clock and the input and output sides are disconnected. READY is stop bit generation during a stuck low fault condition. pulled high when ENABLE is high and a connection has When driven high, the ENABLE pin connects SDAIN and been established between the input and output. Connect SCLIN to SDAOUT and SCLOUT after a stop bit or bus idle a pull-up resistor, typically 10k from this pin to the bus has been detected on both busses. Driving ENABLE high pull-up supply. Leave open or tie to GND if unused. also enables automatic clock generation during a stuck low fault condition. During a stuck low fault condition, a
SDAIN (Pin 6):
Serial Bus 1 Data Input/Output. Connect rising edge on the ENABLE pin forces a connection between this pin to the SDA line on the upstream bus. Connect an SDAIN and SDAOUT and SCLIN and SCLOUT. When using external pul -up resistor or current source between this pin the LTC4313 in a Hot Swap™ application with staggered and the bus supply. The bus supply needs to be ≥ VCC for connector pins, connect a 10k resistor between ENABLE the LTC4313-1 and LTC4313-2, but not for the LTC4313-3. and GND to ensure correct functionality. Connect to VCC Refer to the Applications Information section for more if unused. details. Do not leave open.
SCLOUT (Pin 2):
Serial Bus 2 Clock Input/Output. Connect
SDAOUT (Pin 7):
Serial Bus 2 Data Input/Output. Connect this pin to the SCL bus segment where stuck low recovery this pin to the SDA bus segment where stuck low recovery is desired. Connect an external pull-up resistor or current is desired. Connect an external pull-up resistor or current source between this pin and the bus supply. The bus supply source between this pin and the bus supply. The bus supply needs to be ≥ VCC for the LTC4313-1 and LTC4313-2, but needs to be ≥ VCC for the LTC4313-1 and LTC4313-2, but not for the LTC4313-3. Refer to the Applications Informa- not for the LTC4313-3. Refer to the Applications Informa- tion section for more details. Do not leave open. tion section for more details. Do not leave open.
SCLIN (Pin 3):
Serial Bus 1 Clock Input/Output. Connect
VCC (Pin 8):
Power Supply Voltage. Power this pin from this pin to the SCL line on the upstream bus. Connect a supply between 2.9V and 5.5V. Bypass with at least an external pull-up resistor or current source between 0.01µF to GND. this pin and the bus supply. The bus supply needs to be
Exposed Pad (Pin 9, DD8 Package Only):
Exposed pad ≥ VCC for the LTC4313-1 and LTC4313-2, but not for the may be left open or connected to device GND. LTC4313-3. Refer to the Applications Information section for more details. Do not leave open. 4313123f 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
