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PDF L6270 Data sheet ( Hoja de datos )
| Número de pieza | L6270 | |
| Descripción | MILLI-ACTUATOR DRIVER | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L6270 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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L6270
® L6271
90V BCD MIXED TECHNOLOGY
SO24 AND SO20 PLASTIC SMD PACKAGE
4.5 TO 13.2V OPERATIVE VOLTAGE
±25 TO ±40V OUTPUT VOLTAGE RANGE
SELECTABLE BY EXTERNAL RESISTOR
FULL-WAVE RESONANT DC-DC CON-
VERTER USING SINGLE COIL FOR DUAL
HIGH VOLTAGE GENERATOR WITH OUT-
PUT SLEW RATE CONTROL AND SELF
CURRENT LIMITING
LINEAR MODE AND BANG-BANG MODE
±40V OR 0/+80V OPERATIVE VOLTAGE
DRIVING CONFIGURATION MODES:
1. SINGLE ENDED VOLTAGE MODE
2. DIFFERENTIAL VOLTAGE MODE
3. SINGLE ENDED CHARGE MODE
DOUBLE OPERATIONAL AMPLIFIERS WITH
500KHZ GAIN BANDWIDTH PRODUCT AND
LOAD DRIVING CAPABILITY FROM 0.4NF
UP TO 24NF
BLOCK DIAGRAM
MILLI-ACTUATOR DRIVER
PRODUCT PREVIEW
SO20
SO24
ORDERING NUMBERS:
L6270
L6271
2.5V VOLTAGE REFERENCE
2.5V ANALOG SHIFTING CIRCUITRY
POWER SAVING SLEEP MODE
DESCRIPTION
The L6270/1 is a piezoelectric actuator driver.
V512-AP
20
CRES
COIL
BANG-LIN
21
COIL
Vfdb 3
HVP
24
VSUPPLY
4.5V-13V
+40V
100nF
INB-
INB+
17
16
HVP
-
+
RCCOMP 22
HVM
HVP
POWER
SUPPLY
1K
RESONANT
DC-DC
STEP-UP
CONTROLLER
1Ω
1K
1K
1 HBRIDGE
47nF
2 GND-P
18
OUTK-B
19
OUT1-B
23
HVM
-40V
100nF
INA-
INA+
8
9
-
+
2.5V HVM
1K
SLEEP
50KΩ
7
BAND-GAP
REFERENCE
SLEEP
+
-
ANALOG LEVEL
SHIFTER
VOUT=VIN-2.5
VOUT VIN
10
11
V-SHIFTED
VIN0-5
12
GND-A
100µA
OUTK-A
6
OUT1-A
5 VSUPPLY
20 V512A
+
- INTERNAL
CURRENT
BIAS
13
VREF
100nF
14
IREF
25KΩ
15
DC2REF
RREFDC
D98IN959A
February 1999
This is preliminary information on a new product now in development. Details are subject to change without notice.
1/10
1 page  
L6270 - L6271
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Vout
DC, Ibias
Io ut
PSRR,P
PSRR,N
Cload
Cint
K
Ierr (3)
Voffset
DCShift range
Parameter
OpAmp Output dynamic voltage
OpAmp Bias supply current
(both)
OpAmp Dynamic Output current
OpAmp Positive power supply
rejection ratio
OpAmp Negative power supply
rejection ratio
OpAmp Load capacitance
range
OpAmp Integration capacitance
OpAmp Current ratio
OUTK/OUT1
OpAmp Ioutk
OpAmp Input offset voltage
Dynamic Shifter
Input Range
Test Condition
Capacitive load
@ 50kHz
@ 50kHz
Voltage mode Gain min 20dB
Charge mode Gain min 20dB
Iout1 = 0
Min.
HVM
-75
TBD
TBD
0.4
0.4
9.8
-10
1
Typ.
10
Max.
HVP
7
75
24
24
10.2
50
±10
4
Unit
V
mA
mA
dB
dB
nF
nF
µA
mV
V
Note 1: Selectable by external resistor.
Note 2: Set by external Coil and Capacitor.
Note 3: It will be write after silicon characterization, it’s designed for a maximum offset of a few mA.
In charge mode the Piezo is in open loop, and if Cpiezo = 0.4nF with a maximum Current error of ±5µA the Maximum long time voltage
drift is ±12mV/µs
Figure 1a. HVP load regulation in single supply
mode”.
VS D99IN1003
(V)
38
36
Supply=8V
34
32
30
28
Supply=5V
26
24
22
0
0.004 0.008 0.012 0.016 IL(A)
5/10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet L6270.PDF ] | |
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