CBM3085A

CBM3085AS COREBAI | Alldatasheet

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Technical content

www.corebai.com CBM3085AS OPERATION INSTRUCTION

FEATURES

 1 transmitter and 1 receivers of the serial data of the standard RS-485  Auto Shutdown function provide low power consumption  Supply voltage range: 5.0V±5%  Operating temperature range: -40 ~ +85℃  ESD protection up to 2000V for transmitter input and receiver output (TTL/CMOS levels) and up to 15000V for transmitter output and receiver input (RS-485 levels)  Latch current, min – 300mA at normal climatic condition  Enhanced ESD Specifications: ±15kV IEC61000-4-2 Air Discharge ±8kV IEC61000-4-2 Contact Discharge GENERAL DESCRIPTION The CBM3085A is interface transceiver of serial data under RS-485 standard with low power consumption. The CBM3085A is purposed for application in telecom systems under RS-485/RS-422 standards with low power dissipation, translators of the level, transceiving devices sensitive to electromagnetic radiation, industrial control systems. A ll data sheet.com

01 RO TTL/CMOS Receiver data output

02 RE Receiver Output Enable. 03 DE Transmitter Output Enable.

04 DI Transmitter input

05 GND Common pin

07 B Inverting receiver/transmitter input/output

08 VCC Power supply

Figure 3. Block Diagram

www.corebai.com CBM3085AS OPERATION INSTRUCTION Transmitter Truth Table INPUTS OUTPUTS RE DE DI B A X H H L H X H L H L L L X Z Z H L X ZZ Note : Н – high level, L – low level , Х –don’t care, Z – third state Receiver Truth Table INPUTS OUTPUTS RE DE A,B RO L X ≥ –0,05 В H L X ≤ –0,2 В L L X BH H H H X Z H L X ZZ Note : Н – high level, L – low level , ВН – inputs not used, Х –don’t care, Z – third state, ZZ – inputs and outputs are in the third state Recommended Operating Condition Symbol Parameter Limit Unit min max VCC Supply voltage 4.75 5.25 V VIL Input low voltage DI, DE, PE pins 0 0.8 V VIH Input high voltage DI, DE, PE pins 2.0 VCC V VOD Transmitter output voltage -7.0 12.0 V VIR Receiver input voltage -7.0 12.0 V VOR Receiver output voltage 0 VCC V VTH Receiver differential threshold voltage ±50 ±200 V T Ambient temperature -40 80 ℃ A ll data sheet.com

www.corebai.com CBM3085AS OPERATION INSTRUCTION Maximum Ratings Symbol Parameter Limit Unit min max VCC Supply voltage - 7.0 V VIL Input voltage on pins DI, DE,RE -0.3 7.0 V VOD Transmitter output voltage -13 13 V VIR Receiver input voltage -13 13 V VOR Receiver output voltage -0.3 VCC+0.3 V *Stresses beyond those listed under “maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. A ll data sheet.com

www.corebai.com CBM3085AS OPERATION INSTRUCTION Electrical Parameters (VCC = 5V±5%) Symbol Parameter Mode Limit TA,℃ Unit Min Max ICC Idle mode supply current VRE = 0B or V CC VDI = 0B or V CC VDE = VCC 800 25 ± 10 μA 900 –40; 85 VRE = 0 V VDI = 0 V or V CC VDE = 0 500 25 ± 10 600 –40; 85 ISHDN Shutdown mode supply current VDE = 0V VRE = VCC 9.0 25 ± 10 μA 10 –40; 85 IILL Input low leakage current on control pin VDE = VDI = VRE = 0V - -0.2 25 ± 10 μA -2.0 –40; 85 IILH Input high leakage current on control pin VDE = VDI = VRE = VCC - 0.2 25 ± 10 μA 2.0 –40; 85 tSHDN Shutdown time - 50 600 25 ± 10 ns Receiver VOLR Output low voltage VID = –200mV IOL= 4.0 mA 0.36 25 ± 10 V 0.4 –40; 85 VOHR Output high voltage VID = –50 mV IOH= – 4.0 mA VCC– 1.5 - 25 ± 10 V –40; 85 RI Input resistance – 7.0 V≤V IR≤12 V 96 - 25 ± 10 kΩ –40; 85 II Input current VIR = 12 V VDE = 0 V VCC = 0 or 5.25 V 114 25 ± 10 μA VIR = –7.0 V -66 VIR = 12 V 125 –40; 85 VIR = –7.0 V -75 IOZLR Output low current for OFF-state VOR = 0.4 V - -0.5 25 ± 10 μA -1.0 –40; 85 IOZHR Output high current for OFF-state VOR = 2.4 V - 0.5 25 ± 10 μA 1.0 –40; 85 A ll data sheet.com

www.corebai.com CBM3085AS OPERATION INSTRUCTION IOSHR Output high short circuit current VOR = VCC 8.0 87 25 ± 10 mA 7.0 95 –40; 85 IOSLR Output low short circuit current VOR = 0 V -8.0 -87 25 ± 10 mA -7.0 -95 –40; 85 VhR Hysteresis - - 50 25 ± 10 mV tPHLR, tPLHR Receiver input to output switching delay |VID|≥2.0V tLH = tHL≤15 ns - 185 25 ± 10 ns 200 –40; 85 tSKD R Differential receiver skew |VID|≥2.0V tLH = tHL≤15 ns - 28 25 ± 10 ns 30 –40; 85 tPZHR, tPZLR Receiver enable from OFF to output high (low) CL = 100 pF - 45 25 ± 10 ns 50 –40; 85 tLR (SHDN), tHR (SHDN) Receiver enable from shutdown to output high (low) CL = 100 pF - 3150 25 ± 10 ns 3500 –40; 85 Transmitter VOD1 Differential output voltage (no load) - 5.0 - 25 ± 10 V –40; 85 VOD2 Differential output voltage (no load) RL = 50Ω(RS-422) 2.08 25 ± 10 V 2.00 –40; 85 RL = 27Ω(RS-485) 1.56 25 ± 10 1.50 –40; 85 ∆VOD Change in magnitude of differential output voltage for complementary output states RL = 50; 27Ω - 0.18 25 ± 10 V 0.2 –40; 85 VOС Output bias voltage refer to common pin RL = 50; 27Ω - 2.9 25 ± 10 V 3.0 –40; 85 ∆VOC Change in magnitude of bias output voltage for complementary output states RL = 50; 27Ω - 0.18 25 ± 10 V 0.20 –40; 85 IOSD Short circuit current –7.0V≤VOD≤VCC ±240 25 ± 10 ±250 –40; 85 0V≤VOD≤12V 240 25 ± 10 250 –40; 85 0V≤VOD≤VCC ±26 25 ± 10 ±25 –40; 85 VhD Hysteresis - - 200 25±10 tPHL D, tPLH D Transmitter input to output switching delay CL1 = CL2 = 100 pF RDIFF = 54Ω 330 800 25±10 250 1000 –40; 85 A ll data sheet.com

www.corebai.com CBM3085AS OPERATION INSTRUCTION tSKEW D Transmitter output skew CL1 = CL2 = 100 pF RDIFF = 54Ω 90 25±10 100 –40; 85 tPZH D, tPZL D Transmitter enable time from OFF to output high (low) CL = 100 pF 2200 25±10 2500 –40; 85 tPHZ D, tPLZ D Transmitter disable time from output high (low) to OFF CL = 15 pF 90 25±10 100 –40; 85 tRD, tFD Rise or fall time of differential output signal RDIFF = 54Ω CL1 = CL2 = 100 pF 220 620 25±10 200 750 –40; 85 tLD (SHDN) , tHD (SHDN) Transmitter enable time from shutdown to output high (low) CL = 15 pF 4000 25±10 4500 –40; 85 ST Data rate 600 25±10 500 –40; 85 A ll data sheet.com

Figure 4. Transmitter output & input signals time diagram

Figure 5. Receiver output & input signals time diagram

Figure 6. Transmitter output & input signals time diagram

Figure 7. Receiver output & input signals time diagram

www.corebai.com CBM3085AS OPERATION INSTRUCTION PACKAGE NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B ‑ 0.25 mm (0.010) per side. Symbol Dimensions ,mm Min Max A 4.8 5 B 3.8 4 C 1.35 1.75 D 0.33 0.51 F 0.4 1.27 G 1.27 H 5.72 J 0° 8° K 0.1 0.25 M 0.19 0.25 P 5.8 6.2 R 0.25 0.5 A ll data sheet.com

www.corebai.com CBM3085AS OPERATION INSTRUCTION PACKAGE/ORDERING INFORMATION PRODUCT ORDERING NUMBER TEMPRANGE PACKAGE PAKEAGE MARKING TRANSPOT MEDIA,QUANTILY CBM3085A CBM3085AS8 -40 ~ +85℃ SOIC-8(SOP8) CBM3085AS Tape and Reel,2500 CBM3085ACS8 -0℃~70℃ SOIC-8(SOP8) CBM3085AC Tape and Reel,2500 A ll data sheet.com