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No-Opto Flyback Transformers for Analog Devices MAX17690

ZC1570-AE, ZC1642-AE, ZC1645-AE, ZC1641-AE, ZC1644-AE, ZC1649-AE

RoHS compliant halogen free
These flyback transformers are designed to work with the MAX17690 60 V, no-opto isolated flyback controller from Analog Devices. They have no auxiliary winding and offer the greatest efficiency, lowest cost, and smallest size for synchronous isolated DC-DC power converters. They operate with a 10 – 28 V or 20 – 56 V input voltage range and generate three different outputs. These parts have a maximum height of just 6.5 mm, significantly lower than other parts recommended for the same chipset.
  • Optimized for MAX17690 No-Opto Isolated Flyback Controllers for Analog Devices
  • Designed for 125 – 170 kHz with 10 – 28 V or 20 – 56 V input voltage
  • 1500 Vrms, one minute isolation (hipot) between primary and secondary windings

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Typical Application

Works with Analog Devices MAX17690

Part number Input Voltage Output Power Fsw
ZC1570-AED 10 V 28 V 5 V , 1.2 A 6 W 130 kHz
ZC1642-AED 10 V 28 V 12 V , 0.72 A 8.64 W 170 kHz
ZC1645-AED 10 V 28 V 24 V , 0.36 A 8.64 W 170 kHz
ZC1641-AED 20 V 56 V 5 V , 1.2 A 6 W 125 kHz
ZC1644-AED 20 V 56 V 12 V , 0.72 A 8.64 W 170 kHz
ZC1649-AED 20 V 56 V 24 V , 0.36 A 8.64 W 170 kHz

Specifications

Electrical specifications at 25°C.

Part number
(Hover for schematics)
Inductance
at 0A (µH) 1
(Tolerance: ±10%)
Isat (A) 2 DCR max (Ω) Leakage
Inductance
max (µH) 3
Turns Ratio Isolation
Voltage (Vrms) 4
Pri Sec Pri : Sec
ZC1570-AED 7.85 4.8 0.036 0.007 0.20 1 : 0.375 1500
ZC1642-AED 7.85 4.7 0.035 0.049 0.20 1 : 0.875 1500
ZC1645-AED 7.85 4.5 0.032 0.190 0.20 1 : 1.75 1500
ZC1641-AED 31.4 2.3 0.140 0.007 0.74 1 : 0.1875 1500
ZC1644-AED 31.4 2.3 0.137 0.048 0.74 1 : 0.4375 1500
ZC1649-AED 31.4 2.3 0.130 0.180 0.60 1 : 0.875 1500
Notes
  1. Inductance is for the primary, measured at 0.1 Vrms, 0 Adc.
  2. DC current that causes the primary inductance drop 30% from its value without current. Click for temperature derating information.
  3. Leakage Inductance is for the primary, measured with secondary windings shorted together.
  4. 1500 Vrms, one minute isolation (hipot) between primary and secondary windings.

Termination:

  • RoHS tin-silver over tin over nickel over phos bronze.

Packaging:

  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (500 parts per full reel).
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:
+125°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

L vs Current

Schematics

zc1570s.gif

Physical characteristics

zc1570d.gif

dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_u.gif
500 330 100 13 30,4 24,4 24 16 4 2 6,13 0,36

General specification

Core Material:
Ferrite
Weight:
1.5 g
Packaging:
500 per 13″ reel Plastic tape: 24 mm wide, 0.37 mm thick, 16 mm pocket spacing, 6.1 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.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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