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Microchip MCP1012 | Demoboard EV37F82A

MCP1012 15W REFERENCE DESIGN

Overview

TopologyOther Topology
IC revision3

Description

The EV37F82A is intended to act as a reference design for the MCP1012, implementing a complete design with secondary microcontroller. The MCP1012 15W Reference Design demonstrates the ability of the MCP1012 (located on the primary side) to start up a 15W AC-DC Flyback Converter and then have it commanded by a microcontroller (located on the secondary side).The MCP1012 15W Reference Design provides a hardware and software platform to evaluate a novel method of isolated secondary side control. Two key components enable the startup and secondary side regulation of an isolated power supply, the Microchip MCP1012 and the Microchip patented integrated magnetic winding transformer built by Wurth Electronic.

Features

  • MCP1012 uses an open-loop, constant off-time, peak current-mode current regulator
  • MCP1012 uses a high voltage silicon process (0.5µ 5v/30v/700v) to develop a High Voltage (HV) Linear Regulator. The HV Linear Regulator will be rated for 700V, with an input at VIN and a regulated bias output at VDD.
  • VDD is monitored by an Under-voltage Lockout (UVLO) feature
  • VDD is monitored by an Over-voltage Lockout (OVLO) feature
  • The device’s internal open-loop, peak current-mode current regulator operates in constant Off-Time mode. The duration of the Off-Time is internally fixed at 20µs typical
  • MCP1012 provides a MOSFET Gate Driver (GATE)
  • The Gate Driver can be commanded either by the internal open-loop, constant off-time peak current-mode current regulator circuitry or by an external PWM command via PULSE

More information

Products

Order Code Data­sheet Simu­lation Downloads Product seriesPinsApplicationPCB/Cable/PanelModularityWire SectionCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. CSizeOperating TemperatureQ
(%)
DF
(%)
Ceramic TypeFl
(mm)
IRP,40K
(A)
ISAT
(A)
VersionEndurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
Ø D
(mm)
Z
(mΩ)
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(mΩ)
TypeIR
(A)
L
(mH)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
691415520003SPEC
6 files WR-TBL Series 4155 - 5.08 mm Screwless 45° Entry 3 Screwless PCB No 18 to 22 (AWG) 0.823 to 0.326 (mm²) -30 °C up to +120 °C 5.08 Box -30 °C up to +120 °C 45° 10 15.24 THT
744821240SPEC
9 files WE-CMB Common Mode Power Line Choke 4 -40 °C up to +125 °C XS -40 °C up to +125 °C THT 140 1.5 4 250 1500 MnZn 15.8 7.8 18 THT
742792624SPEC
8 files WE-CBF SMT EMI Suppression Ferrite Bead -55 °C up to +125 °C 0603 -55 °C up to +125 °C 0.3 SMT 180 250 400 MHz 1500 90 High Current 1 1.6 0.8 0.8 SMT
890334025017CSSPEC
8 files WCAP-FTXX Film Capacitors Across the mains100 nF X2 300 0.130 GΩ -40 °C up to +105 °C 15 Carton ±10% Pitch 15 mm -40 °C up to +105 °C 310 18 6 12 Boxed THT
7447779115SPEC
8 files WE-PD SMT Power Inductor 7345 -40 °C up to +125 °C 2.8 2.2 Robust 81 1.6 0.015 7.3 7.3 4.5
860241378003SPEC
6 files WCAP-AT1H Aluminum Electrolytic Capacitors22 µF -25 °C up to +105 °C 5 Ammopack ±20% 20 10000 557 452 13 400 20
865080257014SPEC
8 files WCAP-ASLI Aluminum Electrolytic Capacitors1000 µF0.1 MΩ -55 °C up to +105 °C 15" Tape & Reel ±20% 10.0 x 10.5 -55 °C up to +105 °C 19 SMT 2000 740 100 10 150 10 10.5 10.3 V-Chip SMT
885012006042SPEC
8 files WCAP-CSGP MLCCs 25 V(DC)470 pF10 GΩ 7" Tape & Reel ±5% 0603 -55 °C up to +125 °C 1000 NP0 Class I 0.4 25 1.6 0.8 0.8
885012206076SPEC
8 files WCAP-CSGP MLCCs 25 V(DC)1 µF0.5 GΩ 7" Tape & Reel ±10% 0603 -55 °C up to +125 °C 10 X7R Class II 0.4 25 1.6 0.8 0.8
885012206089SPEC
8 files WCAP-CSGP MLCCs 50 V(DC)10 nF10 GΩ 7" Tape & Reel ±10% 0603 -55 °C up to +125 °C 2.5 X7R Class II 0.4 50 1.6 0.8 0.8
885012007063SPEC
8 files WCAP-CSGP MLCCs 50 V(DC)1 nF10 GΩ 7" Tape & Reel ±5% 0805 -55 °C up to +125 °C 1000 NP0 Class I 0.5 50 2 1.25 0.8
885012208069SPEC
8 files WCAP-CSGP MLCCs 25 V(DC)10 µF0.01 GΩ 7" Tape & Reel ±10% 1206 -55 °C up to +125 °C 10 X7R Class II 0.5 25 3.2 1.6 1.6
885012109014SPEC
8 files WCAP-CSGP MLCCs 25 V(DC)22 µF0.005 GΩ 7" Tape & Reel ±20% 1210 -55 °C up to +85 °C 5 X5R Class II 0.6 25 3.2 2.5 2.5
885012006079SPEC
6 files WCAP-CSGP MLCCs 100 V(DC)100 pF10 GΩ -55 °C up to +125 °C 7" Tape & Reel ±5% 0603 -55 °C up to +125 °C 1000 NP0 Class I 0.4 100 1.6 0.8 0.8
885012206111SPEC
6 files WCAP-CSGP MLCCs 100 V(DC)3.3 nF10 GΩ -55 °C up to +125 °C 7" Tape & Reel ±10% 0603 -55 °C up to +125 °C 2.5 X7R Class II 0.4 100 1.6 0.8 0.8
750318659SPEC
Offline Transformer 27.05 32.25 22.86
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesPinsApplicationPCB/Cable/PanelModularityWire SectionCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. CSizeOperating TemperatureQ
(%)
DF
(%)
Ceramic TypeFl
(mm)
IRP,40K
(A)
ISAT
(A)
VersionEndurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
Ø D
(mm)
Z
(mΩ)
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(mΩ)
TypeIR
(A)
L
(mH)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples