Pin description and connection diagram

PM8834

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2

Pin description and connection diagram

Figure 2.

Pins connecti

2.1

Pin description

Table 2.

Pin descriptions

Pin #

Name

Function

1

ENABLE_1

Enable input for Driver 1. Pull low to disable Driver1 (OUT1 will be low,

PWM1 will be ignored). Even though internally pulled up to 3.3 V by 10

μA

current it is recommended to pull high up to VCC to enable the section.

The pin features TTL/CMOS compatible thresholds.

2PWM_1

PWM input signal for driver 1 featuring TTL/CMOS compatible threshold

and hysteresis.

It is internally pulled down to GND with a 10

μA current generator.

3GND

All internal references, logic and drivers are referenced to this pin. Connect

to the PCB ground plane.

4PWM_2

PWM input signal for driver 2 featuring TTL/CMOS compatible threshold

and hysteresis.

It is internally pulled down to GND with a 10

μA current generator.

5OUT_2

Driver2 output. The output stage is capable of providing up to 4A drive

current to the gate of a power MOSFET. IGBT are supported as well.

A small series resistor can be useful to reduce dissipated power.

6

VCC

PM8834 supply voltage. Bypass with low-ESR MLCC capacitor to GND.

7OUT_1

Driver1 output. The output stage is capable of providing up to 4A drive

current to the gate of a power MOSFET. IGBT are supported as well.

A small series resistor can be useful to reduce dissipated power.

8

ENABLE_2

Enable input for Driver2. Pull low to disable Driver2 (OUT2 will be low,

PWM2 will be ignored). Even though internally pulled up to 3.3 V by 10

μA

current it is recommended to pull high up to VCC to enable the section.

The pin features TTL/CMOS compatible thresholds.