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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

Datasheet 3D Model

ZD2155-AE Isolated Buck Transformer

for STMicroelectronics STEVAL-7BIDIRCB

Optimized for 7 kW bidirectional AC-DC converter STEVAL-7BIDIRCB from STMicroelectronics
Works with A/L6986I as gate driver auxiliary power supply solution
Suitable for isolated IGBT/SiC gate driver
AEC-Q200 qualified

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Typical Application

Works with STMicroelectrics STEVAL-7BIDIRCB

Input Voltage	Output 1		Power	Fsw
Input Voltage	Sec1	Sec2	Power	Fsw
12 V	18 V , 0.05 A	5 V , 0.05 A	2.3 W	250 kHz

Specifications

Electrical specifications at 25°C.

Part number (Hover for schematics)	Inductance at 0A (µH) 2 (Tolerance: ±10%)	Isat (A) 3	DCR max					Leakage Inductance max (µH) 4	Turns Ratio 5	Isolation Voltage (Vrms) 6
Part number (Hover for schematics)	Inductance at 0A (µH) 2 (Tolerance: ±10%)	Isat (A) 3	Pri (Ω)	Sec1 (mΩ)	Sec2 (mΩ)	Sec3 (mΩ)	Sec4 (mΩ)	Leakage Inductance max (µH) 4	Pri : Sec1 : Sec2	Isolation Voltage (Vrms) 6
ZD2155-AED	27.0	2.5	0.104	774.0	290.0	774.0	290.0	0.20	1 : 2.66 : 0.77	2000

Notes

18 V, 0.05 A output is for Sec1 and Sec3. 5 V, 0.05 A output is for Sec2 and Sec4.
Inductance is for the primary, measured at 250 kHz, 0.1 Vrms, 0 Adc.
DC current that causes the primary inductance to drop 30% from its value without current.
Leakage inductance is for the primary with the secondary windings shorted.
Turns ratio for Pri: Sec1: Sec2: Sec3: Sec4 is 1 : 2.66 : 0.77 : 2.66 : 0.77
2000 Vrms, one minute isolation (hipot) between primary and secondary windings.

Termination:

RoHS-compliant, halogen free. 260°C compatible. Tin-silver-copper over tin over nickel over phos bronze terminations.

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (400 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

–40°C to +125°C

Storage temperature range:

Component: –40°C to +125°C
Tape and reel packaging: –40°C to +80°C

Maximum part temperature:

+165°C (Ambient + temp rise)

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

L vs Current

Schematics

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
400	330	100	13	38,4	32,4	32	20	4	2	7,6	0,4

General specification

Core Material:

Ferrite

Weight:

2.73 g

Packaging:

400 per 13″ reel Plastic tape: 32 mm wide, 0.4 mm thick, 20 mm pocket spacing, 7.6 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Refer to Soldering Coilcraft Components before soldering.

ZD2155-AE Isolated Buck Transformer

for STMicroelectronics STEVAL-7BIDIRCB

Typical Application