HA13408 查看數據表（PDF） - Hitachi -> Renesas Electronics

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生产厂家

HA13408

9-Channel Power Driver

Hitachi -> Renesas Electronics 

HA13408

tsus = 0.118 ms

Where VCE(sat) = 1.3 V typ and VCE(sus) = 52 V typ.

Power Dissipation

Power dissipation driving an inductive load for an HA13408 is determined as follows:

First, average power dissipation (Pon) per channel at ton is obtained as follows:

Pon =.. VCE(sat) IP

VCC2 – 1

R • IP ton

L

R

(3)

Average power dissipation (Psus) at tsus:

Psus =.. VCE(sus) IP

1

tsus

L

R

–

VCE(sus) – VCC2

R • IP

(4)

Where IP and tsus are obtained in equations (1) and (2).

Average power dissipation (PT) per channel for a period is obtained as follows:

PT =..

1

T

(Pon • ton + Psus • tsus)

(5)

Where drive period is defined as T.

Power dissipation (PT) for 9 channels driven at the same time:

PT =..

9

T

(Pon • ton + Psus • tsus)

(6)

4

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