L8229 datasheet(13/42 Pages) STMICROELECTRONICS

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L8229

L6219_HI and L6219_8 modes

13/42

L6219_HI and L6219_8 modes

When configured in one of these modes the device has a functionality similar to ST L6219

with some improvements. The output stage is made by LDMOS devices instead of the BJT

present in ST L6219. This allows a reduced saturation drop and an higher current handling

with similar power dissipation. Additionally the recirculation diodes are internally available as

a part of the LDMOS structure.

In case of:

Undervoltage detection (UVD) or

Thermal shutdown (TSD),

the outputs will be in Hi-Z mode (all outputs off) respectively until the supplies voltage goes

over the UV threshold plus hysteresis or the themperature decreases below TSD threshold

minus hysteresis.

In case of:

Overcurrent detection (OCD)

the outputs will be in Hi-Z mode (all outputs off) and will remain in this condition until the

device is reset by turning off and on VCC supply voltage.

Common electrical characteristics of both L6219_HI and L6219_8 modes are listed below,

while specific characteristics are listed in their respective functionality descriptions.

L8229 数据表(PDF) 13 Page - STMicroelectronics