IC-Hersteller Microchip

IC-Hersteller (99)

Microchip MCP1631HV

MCP1631RD-DCPC1 DIGITALLY CONTROLLED PROGRAMMABLE CURRENT SOURCE

Details

TopologieSEPIC Buck-Boost Topologie
Eingangsspannung3.5-16 V
Ausgang 11 A
IC-RevisionA

Beschreibung

The MCP1631HV Digitally Controlled Programmable Current Source Reference Design is used to drive and dim one or more power LEDs in a series or parallel topology (depending on the LED’s capability). The reference design may also be used to charge one to four cell NiMH/NiCd or one to two cell Li-Ion battery packs. The board uses the MCP1631HV high-speed analog PWM controller and PIC16F616 microcontroller to generate the proper dimming ratio for LEDs or charge algorithm for NiMH, NiCd and Li-Ion batteries.The MCP1631HV Digitally Controlled Programmable Current Source Reference Design is used to evaluate Microchip’s MCP1631HV in a SEPIC power converterapplication. The MCP1631HV Digitally Controlled Programmable Current Source Reference Design is user programmable. Multiple user functions may be selected by re-compiling the source code. The board can drive LEDs or charge NiMH, NiCd or Li-Ion batteries with a maximum current of 1A. In Charger Mode, the MCP1631HV Digitally Controlled Programmable Current Source Reference Design provides a constant current charge (Ni-based chemistry) and constant current/constant voltage(Li-Ion based chemistry) with preconditioning, cell temperature monitoring (for Ni-based) and battery pack fault monitoring. In LED Driver mode, the MCP1631HVDigitally Controlled Programmable Current Source Reference Design provides a constant user defined current and a 10:1 dimming ratio. The dimming ratio and maximum current can be selected before compiling the source code. The board has LED indicators to provide multiple fault indication.

Eigenschaften

  • Input Operating Voltage Range: +3.5V to +16V
  • Firmware default output current of 700 mA with dimming ratio 10:1 (70 mA/step)
  • Maximum output current of 1000 mA
  • Maximum output power of 8.5W
  • Drive one or more LEDs
  • Firmware for charging Li-Ion, NiMH, and NiCd batteries
  • Single ON/OFF/Dimming switch
  • Status and fault indication
  • Hardware and software overvoltage protection (OVP) set to 9.0V. The software value can be modified in the source code to be less than 9.0V

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL1
(µH)
L2
(µH)
IR 1
(A)
IR 2
(A)
ISAT 1
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres
(MHz)
Typ Muster
744877100SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-DD SMT-Doppeldrossel 10 10 1.1 1.1 2.8 0.11 0.11 0.12 0.12 27 Gerade
Artikel Nr. Daten­blatt Simu­lation
744877100SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL1
(µH)
L2
(µH)
IR 1
(A)
IR 2
(A)
ISAT 1
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres
(MHz)
Typ Muster