SLLSEY2F March   2017  – March 2019

PRODUCTION DATA.

1. Features
2. Applications
3. Description
4. Revision History
5. Description (continued)
6. Pin Configuration and Functions
7. Specifications
8. Parameter Measurement Information
9. Detailed Description
1. 9.1 Overview
2. 9.2 Functional Block Diagram
3. 9.3 Feature Description
4. 9.4 Device Functional Modes
10. 10Application and Implementation
1. 10.1 Application Information
2. 10.2 Typical Application
11. 11Power Supply Recommendations
12. 12Layout
1. 12.1 Layout Guidelines
2. 12.2 Layout Example
13. 13Device and Documentation Support
14. 14Mechanical, Packaging, and Orderable Information

• DWE|16

### 7.8 Safety Limiting Values

Safety limiting intends to minimize potential damage to the isolation barrier upon failure of input or output circuitry.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
IS Safety input, output, or supply current(1) RθJA = 56.8°C/W, VI = 5.5 V, TJ = 150°C, TA = 25°C, see Figure 1 400 mA
RθJA = 56.8°C/W, VI = 3.6 V, TJ = 150°C, TA = 25°C, see Figure 1 611
PS Safety input, output, or total power(1) RθJA = 56.8°C/W, TJ = 150°C, TA = 25°C, see Figure 2 2200 mW
TS Maximum safety temperature(1) 150 °C
The maximum safety temperature, TS, has the same value as the maximum junction temperature, TJ, specified for the device. The IS and PS parameters represent the safety current and safety power respectively. The maximum limits of IS and PS should not be exceeded. These limits vary with the ambient temperature, TA.
The junction-to-air thermal resistance, RθJA, in the Thermal Information table is that of a device installed on a high-K test board for leaded surface-mount packages. Use the following equations to calculate the value for each parameter:
TJ = TA + RθJA × P, where P is the power dissipated in the device.
TJ(max) = TS = TA + RθJA × PS, where TJ(max) is the maximum allowed junction temperature.
PS = IS × VI, where VI is the maximum input voltage.