LTC4310-2 LINER [Linear Technology], LTC4310-2 Datasheet
LTC4310-2
Related parts for LTC4310-2
LTC4310-2 Summary of contents
Page 1
... IL it can be bridged by capacitors for lower voltage isolation. The LTC4310-1 is intended for use in 100kHz I The LTC4310-2 is intended for 400kHz I Rise time accelerators provide strong pull-up currents on SCL and SDA rising edges to meet rise time specifications for heavily loaded systems. Data and clock Hot Swap™ ...
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... LTC4310-1/LTC4310-2 absoluTe MaxiMuM raTings Input Supply Voltage (V ) .......................... –0. Input and Bidirectional Pin Voltages SCL, SDA, EN, RXP , RXN .......................... –0. Output Voltages READY ..................................................... –0. TXP , TXN ...................... –0. Maximum Sink Current (SDA, SCL, READY) ..........30mA pin conFiguraTion TOP VIEW ...
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... T SYMBOL PARAMETER Supplies V Input Supply Range CC I Input Supply Current, LTC4310-1 CC Input Supply Current, LTC4310-2 I Shutdown Input Supply Current CC(SD) V Input Supply Undervoltage Lockout CCH(UVL) Rising Threshold Voltage V Input Supply Undervoltage Lockout CC(UVL, HYST) ...
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... LTC4310-1/LTC4310-2 elecTrical characTerisTics temperature range, otherwise specifications are at T SYMBOL PARAMETER t Maximum Time Between TXP , TXN MAX(TX) Transmit Events t Maximum Time Between RXP , RXN MAX(RX) Receive Events Transmit Outputs V TXP , TXN Single-Ended Output Low TX(OL) V TXP , TXN Single-Ended Output High TX(OH) t TXP , TXN Output Rise Time ...
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... Typical perForMance characTerisTics I vs Temperature, LTC4310-1 CC 5.0 SDA = 0V V SCL = 4.8 4 4.4 4.2 4.0 –50 – TEMPERATURE (°C) SDA, SCL Controlled Rising Edge Rate vs Temperature, LTC4310-2 5.5 5 4.5 4.0 3 3.0 2.5 –50 – TEMPERATURE (°C) SDA, SCL Rise Time Accelerator Pull-Up Current vs Bus Capacitance 25°C A ...
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... LTC4310-1/LTC4310-2 pin FuncTions EN (Pin 1): Device Enable Input. Pulling sets the device in normal operation mode, allowing bus information to be sent and received across the barrier. Grounding EN disables communication across the bar- rier and debiases all internal circuitry, setting the device in a very low current shutdown mode ...
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... V CC – + 0.45 • V FALLING – + 0.35 • V RISING – RX – 0.35V + + – 150µA POR CIRCUITRY LTC4310-1/LTC4310-2 1.25V TXP 1.25V TXN LOGIC 0.5V RXP + + – – – RXN + + – 10 0.5V RXP STOP BIT RXN AND BUS IDLE DETECTORS SCL ...
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... LTC4310-1/LTC4310-2 operaTion (LTC4310 refers to both LTC4310-1 and LTC4310-2) The LTC4310 provides fully bidirectional communications 2 between two SMBus buses whose grounds are isolated from one another. Clock stretching, clock syn- chronization, arbitration and data acknowledging all work seamlessly across the barrier, regardless of the locations of the master(s) and slave(s) ...
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... R4 ETHERNET 10k 10k TRANSFORMER READY 1 16 TXP 15 C3 0.01µ TXN 6 11 RXP 7 C2 0.01µ RXN EPF8119S LTC4310-1/LTC4310-2 IS0LATED C4 5V 0.01µF READY R5 R6 RXP 7.5k 7.5k LTC4310 BUS RXN SDA SCL2 TXP SCL SLAVE#1 TXN GND 431012 F01 = 80pF ...
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... For bus frequencies up to 100kHz, choose the LTC4310-1 and refer to Figure 2 for the maximum pull-up resistance to use. For bus frequencies between 100kHz and 400kHz, choose the LTC4310-2 and refer to Figure 3 for the maximum pull-up resistance to use. Be sure to include worst-case resistor tolerance when selecting resistor value ...
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... CC more quickly than the 3.3V bus signal. Both buses reach (0.35 • approximately 900ns, so the effective skew CC between the buses is nearly zero. The LTC4310-2 functions the same as the LTC4310-1, except the controlled rise rate is limited to (0.35 • V )/300ns. CC RISE TIME ...
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... LTC4310-1/LTC4310-2 applicaTions inForMaTion quiet if it has been idle high for at least 115µ STOP bit has occurred and both data and clock have remained high since the STOP bit. This functionality makes the LTC4310 ideal for hot-swapping cards into and out of a ...
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... C2 and C3. Figure 7 shows the same application as Figure 1, but with each LTC4310-1 replaced by an LTC4310-2, so that the bus can switch at frequencies up to 400kHz. To meet the requirements shown in the curves of Figure 3, R1 and communi- are changed from 7 ...
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... LTC4310-1/LTC4310-2 applicaTions inForMaTion TYPICAL APPLICATIONS Figure 8 shows the LTC4310-1 providing I 2 tions between bus referenced to system ground and bus using –5V for its ground reference. Ceramic coupling capacitors, C1-C5, are used to bridge the isolation barrier. This circuit is recommended for ground isolation voltages less than 100V and is limited by the voltage rating of C1-C5 ...
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... 47pF , 100V CARD CONNECTOR I/O PERIPHERAL CARD C6 0.01µ TXP LTC4310-1 SDA TXN C3 SCL RXP READY EN RXN R7 100k GND 47pF , 100V 2 C Hot-Swapping Application LTC4310-1/LTC4310 10k 5.1k 5. 150pF BUS . . . SLAVE#1 SLAVE#N –5V 431012 F09 C7 0.01µ 6.8k 6.8k 10k V CC RXP ...
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... CC to control the bus rise rate. LTC4310-1 Compatibility with LTC4310 typical application such as shown in Figure 1, an LTC4310-1 can be used on one bus and an LTC4310-2 can be used on the other, provided that the bus pull-up resis- tors connected to the LTC4310-1 meet the requirements of Figure 2, and the bus pull-up resistors connected to the LTC4310-2 meet the requirements of Figure 3 ...
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... Pulse E5017 Würth Electronics 000-7090-37R-LF1 Midcom 749014012 LTC4310-1/LTC4310-2 are inexpensive and work very well in this application for isolation voltages up to 1500V. For applications requiring 4000V isolation, the Würth Electronics Midcom 749014012 transformer is recommended. RF Radiated Emissions The LTC4310 evaluation board passes CISPR22 Class B requirements for radiated emissions ...
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... LTC4310-1/LTC4310-2 package DescripTion 3.50 ±0.05 1.65 ±0.05 2.15 ±0.05 (2 SIDES) 0.25 ± 0.05 0.50 BSC 2.38 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-2). CHECK THE LTC WEBSITE DATA SHEET FOR CURRENT STATUS OF VARIATION ASSIGNMENT 2. DRAWING NOT TO SCALE 3 ...
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... Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC4310-1/LTC4310-2 MS Package 10-Lead Plastic MSOP (Reference LTC DWG # 05-08-1661 Rev E) 0.889 ± ...
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... LTC4310-1/LTC4310-2 Typical applicaTion 3. 5.1k 5. 100pF BUS relaTeD parTs PART NUMBER DESCRIPTION LTC4300A-1/LTC4300A-2/ Hot-Swappable 2-Wire Bus Buffers LTC4300A-3 LTC4301 Supply Independent Hot-Swappable 2-Wire Bus Buffer LTC4302-1/LTC4302-2 Addressable 2-Wire Bus Buffer LTC4303/LTC4304 Hot-Swappable 2-Wire Bus Buffer with Stuck Bus Recovery ...