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DS20005575A-page 11

MIC4102

3.0

PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 3-1.

Package Type

TABLE 3-1:

PIN FUNCTION TABLE

Pin Number

Pin Name

Description

connected to HB (Pin 2).

2

HB

High-Side Bootstrap supply. External bootstrap capacitor is required. Connect positive

side of bootstrap capacitor to this pin. Bootstrap diode is on-chip.

3

HO

High-Side Output. Connect to gate of high-side power MOSFET.

4

HS

High-Side Source connection. Connect to source of high-side power MOSFET.

Connect negative side of bootstrap capacitor to this pin.

5

PWM

Control Input. PWM high signal makes high-side HO output high and low-side LO

output low. PWM low signal makes high-side HO output low and low-side LO output

high.

6

LS

Low-Side Disable. When pulled low, this control signal immediately terminates the

low-side LO output drive. The low-side LO output drive will remain low until this signal

is removed. HS drive is not affected by the LS signal. The logic table is below (see

Table 3-2).

Chip negative supply. Generally, this will be grounded.

8

LO

Low-Side Output. Connect to gate of low-side power MOSFET.

MIC4102

SOIC-8L (M)

(Top View)

1

VDD

HB

HO

HS

8LO

VSS

LS

PWM

7

6

5

2

3

4

TABLE 3-2:

LS PIN LOGIC TABLE

LS

PWM

LO

HO

0000

0101

1010

1101