l9909 STMicroelectronics, l9909 Datasheet - Page 4

• Manufacturer Part Number: l9909
• Description: Dc Motor Driver With Position Control
• Manufacturer: STMicroelectronics

L9909
ELECTRICAL CHARACTERISTICS (continued.)
Figure 1. Static Transfer Characteristic. Error
4/9
VCOM
VCOM
INPUT OUTPUT TRANSER FUNCTION
OUTPUT DRIVERS
COSC
VFB
VFB
Pin
M+
M -
M+
M -
-Vcc
Vcc-V
10
STP
Symbol
V
T
Voltage vs. Output Voltage
R
V
R
V
R
V
HSHDN
MTRAN
R
I
off_c1
T
T
A
ON_H
ON_L
T
T
LIM
STP
STR
com
diff
on
off
R
V
-1.5% Vcc
V
F
STR
=
Vcc
V
Input Output Gain
Stop Motor Voltage
Start Error Voltage
Comp 1 Input Offset Voltage
Switch on Delay
Switch off Delay
Differential Input Impedance
(see fig 3)
Common Mode Input (see fig 3)
High Side R
Low Side RDS
Output Current Limit for each
of 4 Output Transistors
Separately
Output Rise Time
Output Fall Time
|V(M+) - V(M-)| Output Voltage
During V
Thermal Shutdown
STP
-Vcc
V
-V
OUT
STP
V
1.5% Vcc
STR
CC
Parameter
∆ V
∆ Verr
=
Transients
DS
OUT
=10
Vcc-V
10
STP
Vcc
Verr
V
V
Error Voltage when the motor
starts braking
I
I
I
I
20% to 80%
80% to20%
Transients of figs.4 and 5
2V
V
M+
M+
M+
M+
I
STP
STR
COM
I
com
com
COM
= I
= I
= I
= I
Figure 2. Static Transfer Characteristic. Position
= 2 V
= V
+ I
+ V
M-
M-
M-
M-
-100
Test Condition
I
FB
-10 (1+ -------)
= 0.3A; V
= 0.3A; V
= 0.3A; V
= 0.3A; V
R7/5
FB
V
FB
R4
FB
V
Vcc
STP
Error Voltage vs. Output Voltage
Perr = Verr/V
CC
CC
CC
CC
=13.5V
=7V
=13.5V
=7V
-1.5
Vcc
V
STP
-Vcc
V
-V
CC
1.5
OUT
STP
Min.
100
-20
2.5
50
7
1
1
1
1
∆V
∆Verr
OUT
Typ.
300
170
1.5
0.6
0.6
10
20
20
=10
3
1
1
10 (1+ -------)
V
Max.
Vcc
3.5
1.5
2.6
1.5
2.6
1.9
STP
14
20
20
2
2
2
100
Perr [%]
%V
T
T
Unit
mV
K
K Ω
µ s
µ s
OSC
OSC
V
Ω
Ω
Ω
Ω
A
V
C
CC