I2C isolators HopeRF Micro-electronics CMT8100N with wide supply voltage and seamless level translation
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MOQ:
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Delivery Time:
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Product Description
Product Overview
The CMT8100/CMT8101 series are highly reliable, bidirectional I2C isolators compatible with AEC-Q100 and UL1577 safety standards. They offer high dielectric withstand voltages (3.75 kVrms, 5 kVrms), low power consumption, high electromagnetic interference (EMI) immunity, and low radiation. With an I2C clock speed of up to 2 MHz and a common-mode transient immunity (CMTI) of up to 150 kV/us, these devices provide robust performance. Their wide supply voltage range allows for direct connection to most digital interfaces, enabling seamless level translation and enhanced system reliability and stability through high system-level EMC performance.
Product Attributes
- Brand: HopeRF
- Certifications: UL, CQC, CSA, DIN VDE V 0884-11, AEC-Q100, RoHS
- Application Scenarios: Ethernet Power, Isolated I2C/SMBus/PMBus Interfaces, I2C Level Translation, Battery Management
Technical Specifications
| Parameter | Symbol | Conditions | Min | Typical | Max | Unit |
| General Features | ||||||
| Isolation Voltage | 3750 / 5000 | Vrms | ||||
| I2C Clock Rate | 2 | MHz | ||||
| Supply Voltage | VDD1, VDD2 | 2.5 | 5.5 | V | ||
| CMTI | 150 | kV/us | ||||
| Chip-level ESD (HBM) | 8 | kV | ||||
| Isolation Barrier Lifetime | > 40 | Years | ||||
| Low Power Consumption | 1 Mbps | 1.5 | mA/ch | |||
| Low Propagation Delay | ns | |||||
| Operating Temperature | Topr | -40 | 125 | |||
| Electrical Characteristics (Typical at VDD1=5V, VDD2=5V, Ta=25 unless otherwise noted) | ||||||
| Power-On Reset (POR) Threshold | VDDPOR | 2.2 | V | |||
| POR Hysteresis | VDD HYS | 0.1 | V | |||
| POR Start-up Time | trbs | 10 | sec | |||
| Logic Level Input Threshold (Side 1) | VILT1 | Rising edge | 400 | mV | ||
| Logic Level Input Threshold (Side 1) | VIHT1 | 600 | mV | |||
| Logic Level Hysteresis (Side 1) | VIT_HYS1 | 100 | mV | |||
| Output Low Voltage (Side 1) | VOL1 | IOL 4mA, RPULL UP=1K | 650 | 800 | mV | |
| Logic Level Input Threshold (Side 2) | VILT2 | Rising edge | 1.6 | V | ||
| Logic Level Hysteresis (Side 2) | VIT_HYS2 | 0.4 | V | |||
| Input High Voltage (Side 2) | VIH2 | 2.0 | V | |||
| Input Low Voltage (Side 2) | VIL2 | 0.8 | V | |||
| Output Low Voltage (Side 2) | VOL | IOL 30mA | 0.5 | V | ||
| Power Supply Current (5V Supply, Typical at VDD1=5V, VDD2=5V, Ta=25 unless otherwise noted) | ||||||
| CMT8100 Supply Current (Input=0V) | IDD1(Q0) | 4.89 | mA | |||
| CMT8100 Supply Current (Input=0V) | IDD2(Q0) | 3.99 | mA | |||
| CMT8100 Supply Current (Input=VDDI) | IDD1(Q1) | 2.56 | mA | |||
| CMT8100 Supply Current (Input=VDDI) | IDD2(Q1) | 1.97 | mA | |||
| CMT8100 Supply Current (2MHz, CL=15pF) | IDD1(2M) | 3.72 | mA | |||
| CMT8100 Supply Current (2MHz, CL=15pF) | IDD2(2M) | 2.64 | mA | |||
| CMT8101 Supply Current (Input=0V) | IDD1 | 4.19 | mA | |||
| CMT8101 Supply Current (Input=0V) | IDD2 | 2.94 | mA | |||
| CMT8101 Supply Current (Input=VDDI) | IDD1 | 1.97 | mA | |||
| CMT8101 Supply Current (Input=VDDI) | IDD2 | 1.92 | mA | |||
| CMT8101 Supply Current (2MHz, CL=15pF) | IDD1 | 2.63 | mA | |||
| CMT8101 Supply Current (2MHz, CL=15pF) | IDD2 | 2.37 | mA | |||
| Propagation Delay (tPLH12) | R1=1500, R2=500, no load | 46.66 | ns | |||
| Propagation Delay (tPHL12) | R1=1500, R2=500, no load | 66.66 | ns | |||
| Propagation Delay (tPLH21) | R1=1500, R2=500, no load | 38.34 | ns | |||
| Propagation Delay (tPHL21) | R1=1500, R2=500, no load | 72.34 | ns | |||
| Pulse Width Distortion (PWD12) | |t PHL12 t PLH12 | | 34 | ns | |||
| Pulse Width Distortion (PWD21) | |t PHL21 t PLH21 | | 20 | ns | |||
| Fall Time (tf1) | CL = 30pF | 17.1 | ns | |||
| Fall Time (tf2) | CL = 300pF | 26.2 | ns | |||
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina