廬
L6270
L6271
MILLI-ACTUATOR DRIVER
PRODUCT PREVIEW
90V BCD MIXED TECHNOLOGY
SO24 AND SO20 PLASTIC SMD PACKAGE
4.5 TO 13.2V OPERATIVE VOLTAGE
鹵25
TO
鹵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
鹵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
SO20
ORDERING NUMBERS:
L6270
SO24
L6271
2.5V VOLTAGE REFERENCE
2.5V ANALOG SHIFTING CIRCUITRY
POWER SAVING SLEEP MODE
DESCRIPTION
The L6270/1 is a piezoelectric actuator driver.
VSUPPLY
4.5V-13V
CRES
COIL
+40V
V512-AP
20
POWER
SUPPLY
HVP
17
16
-
+
1
K
RESONANT
DC-DC
STEP-UP
CONTROLLER
1
1鈩?/div>
2
18
RC
COMP
22
HVM
1
K
19
23
HVP
8
9
-
+
6
5
2.5V
HVM
1
K
20
100碌A(chǔ)
200碌A(chǔ)
1
K
GND-P
OUTK-B
OUT1-B
HVM
HBRIDGE
47nF
-40V
100nF
BANG-LIN
21
Vfdb
COIL
3
24
HVP
100nF
INB-
INB+
INA-
INA+
OUTK-A
OUT1-A
V512A
VSUPPLY
50K鈩?/div>
SLEEP
7
SLEEP
ANALOG LEVEL
SHIFTER
VOUT=VIN-2.5
VOUT
10
V-SHIFTED
VIN
11
VIN0-5
12
GND-A
13
VREF
100nF
14
IREF
25K鈩?/div>
BAND-GAP
REFERENCE
+
-
+
-
INTERNAL
CURRENT
BIAS
15
DC2REF
RREFDC
D98IN959A
February 1999
This is preliminary information on a new product now in development. Details are subject to change without notice.
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