SNVU793 September 2021 LM5158

2 Electrical Parameters

Table 2-1 details the electrical performance standard configuration.

Table 2-1 Electrical Performance Standard Configuration

PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
Input Characteristics
Input voltage range V_IN	Operation	8	12	16	V
Abs max input voltage V_INMAX	Operation without damage			18	V
Input voltage turn-on V_IN(ON)	Adjustable by the UVLO/SYNC resistors		7.6		V
Input voltage turn-on V_IN(OFF)	Adjustable by the UVLO/SYNC resistors		7.1		V
Output Characteristics
Main output voltage V_O1			10		V
First isolated output voltage V_O2			20		V
Second isolated output voltage V_O3			20		V
Third isolated output voltage V_O4			20		V
Main output load current I_O1				0.250	A
First isolated output load current I_O2				0.075	A
Second isolated output load current I_O3				0.075	A
Third isolated output load current I_O4				0.150	A
System Characteristics
Switching frequency			250		kHz
Peak efficiency	V_IN = 12 V, rated load at all output rails		90		%
Junction temperature		–40		150	°C
Transformer Specifications (Coilcraft ZB1324-AL)
Primary inductances			8		µH
Turns ratio	(2-4) : (1-3)		1
	(5-6) : (1-3)		1.2
	(8-7) : (1-3)		2.4
	(10-9) : (1-3)		2.4
	(12-11) : (1-3)		2.4
Saturation current	20% inductance reduction		5.5		A
Leakage inductance				90	nH