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參數(shù)資料
| 型號(hào)： | L6660 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | MILLI-ACTUATOR DRIVER |
| 中文描述： | 毫執(zhí)行器驅(qū)動(dòng) |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 102K |
| 代理商： | L6660 |
OPERATIONAL AMPLIFIERS DESCRIPTION
Each driver has two output stages scaled in cur-
rent by a factor K = 10.
In voltage mode configuration the two outputs are
shorted.
In charge mode configuration OUT1 drives a ca-
pacitor Cint and is closed in feedback, while
OUTK drives the piezo, mirroring the current sup-
plied to Cint, with a current multiplied by a K fac-
tor (see Fig.2).
The supply voltage can be internally generated
by the DC-DC converter, or external, maintaining
the DC-DC converter in sleep mode (PIN3
shorted to ground), in this case the supply volt-
age can be 0 to V5/12+4 minimum value up to
70V in single supply or V5/12+4 to 35V symmetri-
cal to ground.
The drivers have 130dB DC gain and the Band-
width is 500KHz. Stability is guaranteed with a
minimum gain of 20dB, for a capacitive load in
the range 0.4nF up to 24nF.
Symbol
Vout0
Parameter
Test Condition
External feedback programmed
for DC gain value <30V/V
Min.
-1
Typ.
Max.
+1
Unit
V
OpAmp Output Voltage with 0V
Input Voltage
Reference Voltage PIN13
Reference Voltage Output Current
Filter capacitor at PIN13
Voltage shift value
(V
PIN11
- V
PIN10
)
Analog Voltage Shifter DC
Voltage Gain
V
10
V
11
Shifter circuitry Band Width
External reference voltage
(PIN14)
Total current in Sleep Mode
DC-DC converter Error
Amplifier Input voltage Offset
(V
PIN14
-V
PIN21
)
Error amplifier Current
Capability
Total HVP precision
Voltage level for 0 logic at
digital input pin (Pin 1-4-7-15)
Voltage level for 1 logic at
digital input pin (Pin 1-4-7-15)
Decay period for
V = |19V|
V
ref
OUT
I
vref
V
ref, cap
V
shifted
2.4
-1
10
V
ref
IN
-2%
0.975
2.5
2.6
+1
100
V
ref
IN
+2%
1.025
V
mA
nF
V
1.0V
≤
Vin0-5
≤
3.5V
V
ref
IN
Shifter Gain
V
PIN11
= V
REFIN
→
V’
10
V
PIN11
= V
REFIN
+ 0.1V
→
V"
10
G
=
V’’
10
V’
10
0.1
1.00
BW
Vshift
V
ref
IN
3dB amplitude drop
2
MHz
V
2.0
2.6
I
sleep
EAoff
PIN7 at 0 logic
V
ref
IN = 2.25V
800
+12
μ
A
mV
-12
I
EA
±
100
μ
A
HVP%
V
logic0
V
ref
= 2.25V
±
0%
-4
+4
0.9
%
V
V
logic1
1.6
V
Z
time
V
ref
(Pin14) = 2.25V See Fig. 3
0°C < T
case
< 80°C
140
340
μ
s
T
op
Operative period from Not
Selected phase to Selected
phase for each driver
4
μ
s
Note 1: Selectable by external resistors.
Note 2: Set by external Coil and Capacitor from 80 to 550KHz.
Note 3: Take into account the total power dissipation.
ELECTRICAL CHARACTERISTICS
(continued)
22
24
26
28
30
32
34
36
1
5
9 13 17 21 25 29 33 37 41 45 49 53 57 61 65
Load DC Current (mA)
H
12V
11V
10V
9V
8V
7V
6V
5V
Figure 1. Load Regulation
L6660
4/9
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| L6668 | 功能描述:電流型 PWM 控制器 SMART PRIMARY CONTROLLER RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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