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IP4001

5-CH MOTOR DRIVE IC

The level shifter changes the direction of the current(Iconv) as the same amount,

and then supply it to the power AMP.

The resistor Ra(10.6K) converts current into voltage with the DC offset of Pref.

The power amp has unity gain.

So the total differential voltage gain of the IP4001 is as follows,

If you want to reduce the total gain of the BTL drive part, use additional series resistor into the

input pin(pin#3, 10,19,25)

You can also increase or decrease the voltage gain of the CH1, CH4 using adjustable pin

(pin#4, pin24) by inserting an external series resistor.

when

ef

Pr

+

10k

Vref

-

Vin

10.6K x

=

Va

ef

Pr

+

10k

Vref

-

Vin

-10.6K x

=

Va

-

2

Vbe

-

VCC1

=

Pref

Vref

-

Vin

]}

ef

Pr

+

10k

Vref

-

Vin

x

[(-)10.6k

-

]

ef

Pr

+

10k

Vref

-

Vin

x

{[10.6k

20log

=

Gain

10K

10.6K

x

2

20log

=

6.527dB

=