Build with ISO1050 — Datasheet Specs & AI Design Help

00 — Overview

What the ISO1050 does

The ISO1050x family comprises isolated CAN transceivers available in ISO1050DUB and ISO1050DW variants. These devices support 3.3V and 5V microprocessors with 2500V RMS or 5000V RMS isolation ratings. They feature a 1 Mbps data rate, 150ns typical loop delay, and -27V to 40V bus fault protection. The ISO1050x is designed for industrial automation, HVAC control, security systems, and medical applications requiring enhanced isolation per IEC60747-5-2 and UL1577 standards.

Next step

Start building with ISO1050 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for ISO1050
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	—	2.3 mA	3.6 mA	VI = 0 V or VCC1, VCC1 = 5V; vcc1supply; SUPPLY CURRENT	TI datasheet, p. 7 — SUPPLY CURRENT
output current	—	360 µA	1 mA	SeeFigure 14, VCANH = 12 V, CANL Open; over recommended operating conditions (unless otherwise noted)	TI datasheet, p. 8 — over recommended operating conditions (unless otherwise noted)
supply voltage range	3 V	—	5.5 V	vcc1	TI datasheet, p. 7 — RECOMMENDED OPERATING CONDITIONS
power dissipation	—	—	200 mW	VCC1 = 5.5V, VCC2 = 5.25V, TA = 105°C, RL = 60Ω, TXD input is a 500kHz 50% duty-cycle square wave; pd; over recommended operating conditions (unless otherwise noted)	TI datasheet, p. 16 — over recommended operating conditions (unless otherwise noted)
input capacitance	—	1.3 pF	—	(4e6πt); over recommended operating conditions (unless otherwise noted)	TI datasheet, p. 15 — over recommended operating conditions (unless otherwise noted)
isolation voltage	—	—	2.5 kV	t = 60 sec (qualification); viso; over recommended operating conditions (unless otherwise noted)	TI datasheet, p. 15 — over recommended operating conditions (unless otherwise noted)
propagation delay	25 ns	44 ns	75 ns	See Figure 7; tphl; DRIVER SWITCHING CHARACTERISTICS	TI datasheet, p. 8 — DRIVER SWITCHING CHARACTERISTICS
data rate	—	1 bps	—		TI datasheet, p. 1
rise time	—	20 ns	50 ns	See Figure 7; tr; DRIVER SWITCHING CHARACTERISTICS	TI datasheet, p. 8 — DRIVER SWITCHING CHARACTERISTICS
fall time	—	20 ns	50 ns	See Figure 7; tf; DRIVER SWITCHING CHARACTERISTICS	TI datasheet, p. 8 — DRIVER SWITCHING CHARACTERISTICS
output voltage high	—	3.1 V	—	IOL = 4 mA, See Figure 9; voh; over recommended operating conditions (unless otherwise noted)	TI datasheet, p. 9 — over recommended operating conditions (unless otherwise noted)
output voltage low	—	200 mV	400 mV	IOL = 4 mA, See Figure 9; vol; over recommended operating conditions (unless otherwise noted)	TI datasheet, p. 9 — over recommended operating conditions (unless otherwise noted)
cmti	—	25 GV/s	50 GV/s	SeeFigure 16, VI = VCCor 0 V; common; over recommended operating conditions (unless otherwise noted)	TI datasheet, p. 8 — over recommended operating conditions (unless otherwise noted)
channel count	—	1	—		TI datasheet, p. 1
driver count	—	1	—		TI datasheet, p. 4 — Table 1. Driver Function Table
receiver count	—	1	—		TI datasheet, p. 4 — Table 2. Receiver Function Table

02 — Alternatives

Closest matches to ISO1050

ISO1050 2.7× higher input capacitance, 2.6× higher fall time, 2.0× higher cmti

ADM2483BRW 20.0× higher rise time, 5.9× higher propagation delay, 2.0× lower output voltage low

GM3085E 12.9× lower quiescent current, 2.0× higher output voltage low, 1.8× lower output voltage

GM75176E 3.7× lower propagation delay, 3.6× lower quiescent current, 2.0× higher output voltage low

TJA1051 2.2× higher operating temperature, 1.8× lower quiescent current, 1.8× higher propagation delay

SN65HVD230 10.7× higher input capacitance, 6.3× higher fall time, 4.9× lower quiescent current

TJA1042BT 2.8× higher quiescent current, 2.2× higher operating temperature, 1.9× higher propagation delay

TJA1043 11.7× lower output current, 2.2× higher operating temperature, 1.9× higher propagation delay

03 — FAQ

Frequently asked questions

What is the channel count of the ISO1050DUBR?

The channel count is 1.

What is the common-mode transient immunity (cmti) of the ISO1050DUBR?

The cmti is 25 GV/s, as shown in Figure 16, with VI = VCC or 0 V, common mode, over recommended operating conditions (unless otherwise noted).

What is the data rate of the ISO1050DUBR?

The data rate is 1 bps.

What is the driver count for the ISO1050DUBR?

The driver count is 1.

What is the fall time (tf) under DRIVER SWITCHING CHARACTERISTICS as shown in Figure 7?

The fall time is 20 ns.

What is the input capacitance of the ISO1050DUBR?

The input capacitance is 1.3 pF (4e6πt) over recommended operating conditions (unless otherwise noted).

What is the isolation voltage (viso) of the ISO1050DUBR at t = 60 sec (qualification) over recommended operating conditions?

The isolation voltage is 2.5 kV.

What is the output current of the ISO1050DUBR?

The output current is 360 µA, as shown in Figure 14 with VCANH = 12 V and CANL Open, over recommended operating conditions (unless otherwise noted).

What is the output voltage high (VOH) for the ISO1050DUBR?

The output voltage high is 3.1 V when IOL = 4 mA, as shown in Figure 9, over recommended operating conditions.

What is the output voltage low (VOL) specification for the ISO1050DUBR?

The output voltage low is 200 mV when IOL = 4 mA, as shown in Figure 9, over recommended operating conditions.

What is the power dissipation of the ISO1050DUBR under the conditions VCC1 = 5.5V, VCC2 = 5.25V, TA = 105°C, RL = 60Ω, and a TXD input that is a 500kHz 50% duty-cycle square wave?

The power dissipation is 200 mW.

What is the propagation delay (tphl) for the ISO1050DUBR under DRIVER SWITCHING CHARACTERISTICS as shown in Figure 7?

The propagation delay (tphl) is 44 ns.