l6660 STMicroelectronics, l6660 Datasheet - Page 5

• Manufacturer Part Number: l6660
• Description: Milli-actuator Driver
• Manufacturer: STMicroelectronics

The drivers can be supplied with HVP-HVM (dou-
ble supply mode) or with HVP-Ground (single
supply mode). In both cases they can achieve a
rail-to rail output dynamic range with an average
load current up to 75mA.
Figure 2. Charge Mode Configuration (configuration example; the final application depends on
Input Multiplexer
MULTIPLEXER is controlled by internal logic with 3 digital inputs, supplied by IntVref (2.5V), it is com-
patible to 3.3V and 5V logic command signals, it allows to perform the following configuration:
Table 1.
F.E. = Falling Edge
The MUX is at NOT inv. Inputs, and NO current flows through the MUX switches, because the driver in-
put stage is designed with high impedance stage.
AandB
(PIN1)
0
0
1
1
1
1
(PIN4)
AorB
user needs according with Electrical Characteristics).
1
0
1
0
1
0
(PIN15)
WENA
(F.E.)
(F.E.)
X
X
1
1
Vdac
connected to AGND
connected to AGND
connected to AGND
connected to PIN9
connected to PIN9
connected to PIN9
Rb
C
INA+Status
+
-
INA+
INA+
INA+
INA+
INA+
INA+
HVM
HVP
Ra
connected to AGND
connected to AGND
connected to AGND
connected to PIN16
connected to PIN16
connected to PIN16
1
1
INB+Status
Cint
INB+
INB+
INB+
INB+
INB+
INB+
K
K
In double supply mode the input stage has -
5V/+5V common mode dynamic range, while in
single supply configuration it has 1.2V up to 10V
input common mode dynamic range.
Qpiezo=K*[Cint*(1+Ra/Rb)+C]*Vdac
Qpiezo=Cost*Vdac
Cost=k*[Cint*(1+Ra/Rb)+C]
Cpiezo
Both drv. inp. are disconnected from ext
PIN and are connected to AGND
Both drv. inp. are accesible
(MUX is transparent)
INA is selected
INB is selected
From WENA Falling Edge, changes on
AorB (pin 4) will not change MUX state.
From WENA Falling Edge, changes on
AorB (pin 4) will not change MUX state.
D98IN970A
R
P
Comment
L6660
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