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MLX83100 Automotive 2-Phase DC Pre-Driver

Datasheet

Page 21 of 41

REVISION 5.1 –DECEMBER 13, 2016

Pin Name

State in sleep mode

The charge pump is disabled.

VBOOST

Since the charge pump is disabled VBOOST is pulled to the supply voltage via the external

charge pump diodes.

GATEBx

In sleep mode, gate-discharge resistors (RSGD) between GATEBx and DGND are activated,

ensuring all low-side gate drivers are switched off

GATETx

In sleep mode, gate-discharge resistors (RSGD) between GATETx and PHASEx are activated,

ensuring all high-side gate drivers are switched off

PHASEx

Phases are kept low with GATETx through the internal body diode of the pre-driver

VREG

Voltage regulator is disabled

CPx

Any charge that remains after VREG is disabled will leak to ground

ISENSE

Current sense amplifier is supplied from VDD, and thus not active

FETBx, FETTx

EN, ICOM, MISO

All IO’s are supplied from VDD, and thus not active

Table 12-2 Drivers in Sleep Mode

Notes:

1. In case any of the digital input pins are externally pulled high while VDD is low, current will flow into

VDD via internal ESD protection diodes. This condition is not allowed.

2. When VDD is pulled low, also ICOM will go low. This should not be interpreted as a diagnostic

interrupt.

Figure 13-1-5 Drivers in Sleep Mode

CPx

GATETx

PHASEx

VREG

GATEBx

RSGD

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