ELECTRICAL CHARACTERISTICS (continued.)

Pin

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

INPUT OUTPUT TRANSER FUNCTION

VCOM

VFB

COSC

M+

M-

Input Output Gain

7

10

14

Stop Motor Voltage

2.5

3

3.5

V

Start Error Voltage

1

1.5

2

Comp 1 Input Offset Voltage

Error Voltage when the motor

starts braking

-20

20

mV

Switch on Delay

1

2

Switch off Delay

1

2

VCOM

VFB

Differential Input Impedance

(see fig 3)

100

300

K

Ω

Common Mode Input (see fig 3)

50

K

Ω

OUTPUT DRIVERS

M+

M-

0.6

1.5

Ω

1

2.6

Ω

Low Side RDS

0.6

1.5

Ω

1

2.6

Ω

Output Current Limit for each

of 4 Output Transistors

Separately

1

1.9

A

Output Rise Time

20% to 80%

20

µs

Output Fall Time

80% to20%

20

µs

|V(M+) - V(M-)| Output Voltage

Transients of figs.4 and 5

20

V

Thermal Shutdown

170

°C

Vcc

Vcc

∆Verr

=10

-Vcc

-Vcc

1.5% Vcc

10

Verr

-1.5% Vcc

10

Figure 1. Static Transfer Characteristic. Error

Voltage vs. Output Voltage

Vcc

100

∆Verr

=10

-100

-Vcc

1.5

Perr [%]

-1.5

10 (1+ -------)

Vcc

-10 (1+ -------)

Vcc

Figure 2. Static Transfer Characteristic. Position

Error Voltage vs. Output Voltage

L9909

4/9