DM330023-2 datasheet(49/64 Pages) MICROCHIP

49 / 64 page

Hardware

 2009 Microchip Technology Inc.

DS70605A-page 43

4.3

ELECTRICAL SPECIFICATIONS

The maximum power and current capability of the system is dictated by the allowable

temperature rise of the different components. Establishing maximum limits is not simple

given the host of different ways the user may use the system. The voltage and the

nature of the electrical load used both affects the dissipation that occurs. In determining

the allowable limits for the power semiconductors, the following assumptions have

been made:

• Heat sink is at 70°C (worst case)

• Thermal resistance of the insulating thermal pad is 3°C/W

TABLE 4-9:

INVERTER ELECTRICAL SPECIFICATIONS

TABLE 4-10:

PFC ELECTRICAL SPECIFICATIONS

Parameter

Min

Typ

Max

Units

DC Bus

310

400

VDC

Current

0.1

6.5(1)

10(1)

Power Rating

2015(2)

4000(2)

Watts

Switching Frequency

—

kHz

Note 1: The system continuously operated during one hour, 15 kHz switching

frequency and the PFC boost circuit disabled.

2: It is possible to increase the available maximum output power up to

4000W by using an external ventilation mechanism attached to system

near to the power module. To provide additional air flow, a conventional

AC muffin fan can be used (Comair-rotron part number 028021 or

028023). An alternative bonded fin heat sink with fans attached is also an

option (C&H Technology, Inc. part number CH5117F).

Parameter

Min

Typ

Max

Units

DC Bus

380

400

VDC

Current

0.1

2.6(1)

3.5(1)

Power Rating

1000(2)

1400(2)

Watts

Switching Frequency

100

kHz

Note 1: The system continuously operated during one hour, 50 kHz switching

frequency.

2: It is possible to increase the available maximum output power up to

1400W by using an external ventilation mechanism attached to system

near to the PFC IGBT. To provide additional air flow, a conventional AC

muffin fan can be used (Comair-rotron part number 028021 or 028023).

An alternative bonded fin heat sink with fans attached is also an option

(C&H Technology, Inc. part number CH5117F).

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