AS5403D-HTST datasheet(22/66 Pages) AMSCO

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[v1-06] 2015-Aug-28

AS5403A/D/E − Output Drivers

AS5403 has two output stages, with different characteristics.

The output driver on pin OUT can be programmed as analog

output or low side driver PWM (/PWM), and includes a receiver

for the bidirectional communication used to configure the

device at module level. The driver on pin DSW is a low side only

and can be configured as /PWM (PWM) or digital switch but

doesn’t have the receiver and in communication behaves as

programmed in the EEPROM. Possible configurations for OUT

selectable from EEPROM bits are:

Figure 23:

Possible Configurations of OUT Pin

Note(s) and/or Footnote(s):

1. All other not specified combinations are reserved and not allowed. To avoid floating situation in diagnostic case a pull up resistor

is recommended also in push/pull mode.

Mode

OUT

CFG <2>

OUT

CFG <1>

OUT

CFG <0>

Note

Analog Output

Mode

000

Push-Pull analog output driver external

pull up or pull down required

PWM push/pull

010

Pulse width modulated output with

push/pull driver external pull up required

PWM open drain

011

Pulse width modulated output with low

side driver external pull up required

PWMn push/pull

100

Inverted pulse width modulated output

with push/pull driver external pull up

required

PWMn push/pull

101

Inverted pulse width modulated output

with low side driver external pull up

required

PWM open drain

reduced slew rate

110

Pulse width modulated output with low

side driver external pull up required

reduced falling edge

Output Drivers

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