米6体育平台手机版

ZHCS847B April 2012 – December 2019 AMC1100

PRODUCTION DATA.

6.8 Safety Limiting Values

Safety limiting intends to minimize potential damage to the isolation barrier upon failure of input or output circuitry.

PARAMETER		TEST CONDITIONS	MAX	UNIT
I_S	Safety input, output, or supply current	DUB package, R_θJA = 75.1°C/W, T_J = 150°C, T_A = 25°C, VDD1 = VDD2 = 5.5 V, see Figure 1	302	mA
I_S	Safety input, output, or supply current	DWV package, R_θJA =102.8°C/W, T_J = 150°C, T_A = 25°C, VDD1 = VDD2 = 5.5 V, see Figure 1	221	mA
P_S	Safety input, output, or total power⁽¹⁾	DUB package, R_θJA = 75.1°C/W, T_J = 150°C, T_A = 25°C, see Figure 2	1664	mW
P_S	Safety input, output, or total power⁽¹⁾	DWV package, R_θJA = 102.8°C/W, T_J = 150°C, T_A = 25°C, see Figure 2	1216	mW
T_S	Maximum safety temperature		150	°C

(1) The maximum safety temperature, T_S, has the same value as the maximum junction temperature, T_J, specified for the device. The I_S and P_S parameters represent the safety current and safety power, respectively. Do not exceed the maximum limits of I_S and P_S. These limits vary with the ambient temperature, T_A.
The junction-to-air thermal resistance, R_θJA, in the Thermal Information table is that of a device installed on a high-K test board for leaded surface-mount packages. Use these equations to calculate the value for each parameter:
T_J = T_A + R_θJA × P, where P is the power dissipated in the device.
T_J(max) = T_S = T_A + R_θJA × P_S, where T_J(max) is the maximum junction temperature.
P_S = I_S × VDD1_max + I_S × VDD2_max, where VDD1_max is the maximum high-side supply voltage and VDD2_max is the maximum low-side supply voltage.