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reference designMCP19125 | Demoboard EV61C15A

Microchip MCP19125 | Demoboard EV61C15A

MCP19125 28V to 48V Isolated Flyback DC-DC Evaluation

Overview

TopologyFlyback Converter
Input voltage28 V
Output 148 V
IC revision1

Description

The MCP19124/5 are highly integrated, mixed-signal, low-side synchronous controllers that operate from 4.5Vto 42V. The MCP19124/5 family features individual analog PWM control loops for both current regulation orvoltage regulation. These features, along with an integrated microcontroller core, make these devices ideal forbattery charging applications, LED lighting systems and any other low-side switch PWM applications.

Features

  • Input Voltage: 20.0V to 36.0V
  • Programmable Output Voltage Range: 40.0V to 55.0V
  • Programmable Output Current Limit: 0A to 2.0A
  • Programmable Over-Voltage Limit: 40.0V to 65.0V
  • Programmable Over-Temperature Limit: 40.0°C to 85.0°C
  • Programmable Soft-Start of 120 ms to 2200 ms
  • I2C Interface for Programming and Monitoring the board, providing feedback on:– Output Voltage– Output Current– Input Voltage– Input Current– Board Temperature
  • Isolated Output Voltage
  • Test Points and Headers for All Available Outputs and Input

Typical applications

  • 28V to 48V Flyback converter

More information

Parts approved by Microchip

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Order Code
Data­sheet
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Downloads
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Product series
C
Tol. C
VR(V (DC))
Size
Qmin.
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
Operating Temperature
Q
Z(Ω)
RDC(mΩ)
Winding Style
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
Pitch(mm)
Ø D(mm)
L1(µH)
L2(µH)
n
IR(A)
IR 2(A)
ISAT(A)
RDC1 typ(mΩ)
RDC2 typ(mΩ)
RDC1 max(mΩ)
RDC2 max(mΩ)
RDC 1(mΩ)
RDC 2(Ω)
fres 1(MHz)
L(µH)
IR(A)
∫Udt(µVs)
VT(V (AC))
SamplesAvailability & Sample
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885342208010
SPECWCAP-CSMH Mid and High Voltage, 22 nF, ±10%
Simu­lation
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Downloads7 files

RF & Microwave simulation models

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSMH Mid and High Voltage
Capacitance22 nF
Capacitance±10% 
Rated Voltage500 V (DC)
Size1206 
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Dissipation Factor2.5 %
Insulation Resistance4.545 GΩ
Ceramic TypeX7R Class II 
Length3.2 mm
Width1.6 mm
Height1.6 mm
Pad Dimension0.6 mm
Packaging7" Tape & Reel 
Operating Temperature -55 °C up to +125 °C
Q-Factor600 
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885012208118
SPECWCAP-CSGP MLCCs 100 V(DC), 100 nF, ±10%
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Downloads6 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 100 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage100 V (DC)
Size1206 
Q-Factor [1]600 
Dissipation Factor2.5 %
Insulation Resistance1 GΩ
Ceramic TypeX7R Class II 
Length3.2 mm
Width1.6 mm
Height1.25 mm
Pad Dimension0.6 mm
Packaging7" Tape & Reel 
Operating Temperature -55 °C up to +125 °C
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885012206027
SPECWCAP-CSGP MLCCs 10 V(DC), 2.2 µF, ±10%
Simu­lation
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
Capacitance2.2 µF
Capacitance±10% 
Rated Voltage10 V (DC)
Size0603 
Q-Factor [1]600 
Dissipation Factor10 %
Insulation Resistance0.05 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Operating Temperature -55 °C up to +125 °C
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860080780026
SPECWCAP-ATLI Aluminum Electrolytic Capacitors, 680 µF, ±20%
Simu­lation
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-ATLI Aluminum Electrolytic Capacitors
Capacitance680 µF
Capacitance±20% 
Rated Voltage63 V (DC)
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Dissipation Factor8 %
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Length31.5 mm
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PackagingAmmopack 
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Endurance 5000
Ripple Current2600 mA
Leakage Current428.4 µA
Pitch7.5 mm
Diameter16 mm
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7448841470
SPECWE-DPC HV SMT Dual Powerchoke, –, –
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-DPC HV SMT Dual Powerchoke
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Rated Voltage250 V (DC)
Size5030 
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Length5.2 mm
Width5.2 mm
Height3.1 mm
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Operating Temperature -40 °C up to +125 °C
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Inductance 147 µH
Inductance 247 µH
Turns Ratio1:1 
Rated Current0.6 A
Rated Current 20.6 A
Saturation Current0.7 A
DC Resistance 1840 mΩ
DC Resistance 2840 mΩ
DC Resistance 11200 mΩ
DC Resistance 21200 mΩ
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Self Resonant Frequency [1]18 MHz
Inductance47 µH
Rated Current0.6 A
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Insulation Test Voltage1500 V (AC)
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744237102
SPECWE-CMDC Common Mode Data Line Filter, –, –
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-CMDC Common Mode Data Line Filter
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Rated Voltage80 V (DC)
Size1211 
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Length12 mm
Width11 mm
Height6 mm
Pad Dimension2.3 mm
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Operating Temperature -40 °C up to +125 °C
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Impedance1000 Ω
DC Resistance14 mΩ
Winding Stylesectional 
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Inductance13 µH
Rated Current6 A
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Insulation Test Voltage1000 V (AC)
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749251200
SPECWE-CST Current Sense Transformer, –, –
Simu­lation
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Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-CST Current Sense Transformer
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Rated Voltage80 V (DC)
SizeEE5 
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Length7.7 mm
Width6.9 mm
Height5.33 mm
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Operating Temperature -40 °C up to +125 °C
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Turns Ratio1:200 
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DC Resistance 10.6 mΩ
DC Resistance 214270 mΩ
DC Resistance 10.75 mΩ
DC Resistance 216500 mΩ
DC Resistance 10.75 mΩ
DC Resistance 216.5 Ω
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Inductance8000 µH
Rated Current20 A
Voltage-µSecond100 µVs
Insulation Test Voltage500 V (AC)
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750313985
SPEC–, –, –
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iProduction is active. Expected lifetime: >10 years.
Product series –
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Operating Temperature -40 °C up to +125 °C
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Turns Ratio2.5:1:1 
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Inductance3 µH
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Insulation Test Voltage1500 V (AC)
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