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ZHCSIV2C September 2018 – September 2019 ISO1500

PRODUCTION DATA.

6.6 Insulation Specifications

PARAMETER		TEST CONDITIONS	SPECIFICATIONS	UNIT
PARAMETER		TEST CONDITIONS	DBQ-16	UNIT
IEC 60664-1
CLR	External clearance ⁽¹⁾	Side 1 to side 2 distance through air	>3.7	mm
CPG	External creepage ⁽¹⁾	Side 1 to side 2 distance across package surface	>3.7	mm
DTI	Distance through the insulation	Minimum internal gap (internal clearance)	>17	µm
CTI	Comparative tracking index	IEC 60112; UL 746A	>600	V
	Material Group	According to IEC 60664-1	I
	Overvoltage category	Rated mains voltage ≤ 300 V_RMS	I-III
DIN VDE V 0884-11:2017-01⁽²⁾
V_IORM	Maximum repetitive peak isolation voltage	AC voltage (bipolar)	566	V_PK
V_IOWM	Maximum isolation working voltage	AC voltage (sine wave); time-dependent dielectric breakdown (TDDB) test;	400	V_RMS
V_IOWM	Maximum isolation working voltage	DC voltage	566	V_DC
V_IOTM	Maximum transient isolation voltage	V_TEST = V_IOTM , t = 60 s (qualification); V_TEST = 1.2 × V_IOTM, t = 1 s (100% production)	4242	V_PK
V_IOSM	Maximum surge isolation voltage ISO1500 ⁽³⁾	Test method per IEC 62368-1, 1.2/50 µs waveform, V_TEST = 10000 V_PK (qualification)	4000	V_PK
q_pd	Apparent charge ⁽⁴⁾	Method a: After I/O safety test subgroup 2/3, V_ini = V_IOTM, t_ini = 60 s; V_pd(m) = 1.2 × V_IORM , t_m = 10 s	≤ 5	pC
		Method a: After environmental tests subgroup 1, V_ini = V_IOTM, t_ini = 60 s; V_pd(m) = 1.6 × V_IORM , t_m = 10 s	≤ 5
		Method b1: At routine test (100% production) and preconditioning (type test), V_ini = V_IOTM, t_ini = 1 s; V_pd(m) = 1.875 × V_IORM, t_m = 1 s	≤ 5
C_IO	Barrier capacitance, input to output ⁽⁵⁾	V_IO = 0.4 × sin (2 πft), f = 1 MHz	~1	pF
R_IO	Insulation resistance, input to output ⁽⁵⁾	V_IO = 500 V, T_A = 25°C	> 10¹²	Ω
		V_IO = 500 V, 100°C ≤ T_A ≤ 150°C	> 10¹¹
		V_IO = 500 V at T_S = 150°C	> 10⁹
	Pollution degree		2
	Climatic category		40/125/21
UL 1577
V_ISO	Withstand isolation voltage	V_TEST = V_ISO, t = 60 s (qualification); V_TEST = 1.2 × V_ISO , t = 1 s (100% production)	3000	V_RMS

(1) Creepage and clearance requirements should be applied according to the specific equipment isolation standards of an application. Care should be taken to maintain the creepage and clearance distance of a board design to ensure that the mounting pads of the isolator on the printed-circuit board do not reduce this distance. Creepage and clearance on a printed-circuit board become equal in certain cases. Techniques such as inserting grooves, ribs, or both on a printed circuit board are used to help increase these specifications.

(2) ISO1500 is suitable for safe electrical insulation within the safety ratings. Compliance with the safety ratings shall be ensured by means of suitable protective circuits.

(3) Testing is carried out in air or oil to determine the intrinsic surge immunity of the isolation barrier.

(4) Apparent charge is electrical discharge caused by a partial discharge (pd).

(5) All pins on each side of the barrier tied together creating a two-pin device.