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參數資料
| 型號： | LT3469 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Piezo Microactuator Driver with Boost Regulator |
| 中文描述： | 壓電微執(zhí)行器驅動器，帶有升壓穩(wěn)壓器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 164K |
| 代理商： | LT3469 |
LT3469
1
3469f
Amplifier
I
Current Limit:
±
40mA Typical
I
Input Common Mode Range: 0V to 10V
I
Output Voltage Range: 1V to (V
CC
– 1V)
I
Differential Gain Stage with High Impedance Output
(g
m
Stage)
I
Quiescent Current (from V
CC
): 2mA
I
Unloaded Gain: 30,000 Typical
Switching Regulator
I
Generates V
CC
Up to 35V
I
Wide Operating Supply Range: 2.5V to 16V
I
High Switching Frequency: 1.3MHz
I
Internal Schottky Diode
I
Tiny External Components
I
Current Mode Switcher with Internal Compensation
I
Low Profile (1mm) SOT-23 Package
APPLICATIU
Piezo Microactuator Driver
with Boost Regulator
I
Piezo Speakers
I
Piezo Microactuators
I
Varactor Bias
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
+
–
+IN
3
5
6
2
4
1
8
7
GND
FB
V
CC
SW
LT3469
V
IN
453k
16.5k
0.47
μ
F
50V
V
1V TO 33V
PIEZO
ACTUATOR
5nF < C
<
300nF
10k
+
–
9.09k
100k
47
μ
H
–IN
OUT
3469 TA03
5V OR 12V
0INPUT
1
μ
F
16V
The LT
3469 is a transconductance (g
m
) amplifier that can
drive outputs up to 33V from a 5V or 12V supply. An
internal switching regulator generates a boosted supply
voltage for the g
m
amplifier. The amplifier can drive
capacitive loads in the range of 5nF to 300nF. Slew rate is
limited only by the maximum output current. The 35V
output voltage capability of the switching regulator, along
with the high supply voltage of the amplifier, combine to
allow the wide output voltage range needed to drive a
piezoceramic microactuator.
The LT3469 switching regulator switches at 1.3MHz,
allowing the use of tiny external components. The output
capacitor can be as small as 0.22
μ
F, saving space and cost
versus alternative solutions.
The LT3469 is available in a low profile ThinSOT
TM
package.
Piezo Microactuator Driver
Response Driving a 33nF Load
I
100mA/DIV
V
10V/DIV
INPUT
5V/DIV
50
μ
s/DIV
3469 TA04
FEATURES
DESCRIPTIOU
TYPICAL APPLICATIO
U
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LT3469ETS8 | 制造商:Linear Technology 功能描述:Piezo Microactuator Driver 8-Pin TSOT-23 |
| LT3469ETS8#PBF | 制造商:Linear Technology 功能描述:SP-Other, CUT TAPE Piezo Microactuator Driver |
| LT3469ETS8#TR | 功能描述:IC AMP DVR W/REG 1.3MHZ TSOT23-8 RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:D 類 輸出類型:1-通道（單聲道），帶立體聲耳機 在某負載時最大輸出功率 x 通道數量:930mW x 1 @ 8 歐姆; 40mW x 2 @ 16 歐姆 電源電壓:2.7 V ~ 5.5 V 特點:消除爆音，差分輸入，I²C，靜音，關閉，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) 其它名稱:MAX97000EWA+T-ND |
| LT3469ETS8#TRM | 功能描述:IC AMP DVR W/REG 1.3MHZ TSOT23-8 RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:D 類 輸出類型:1-通道（單聲道），帶立體聲耳機 在某負載時最大輸出功率 x 通道數量:930mW x 1 @ 8 歐姆; 40mW x 2 @ 16 歐姆 電源電壓:2.7 V ~ 5.5 V 特點:消除爆音，差分輸入，I²C，靜音，關閉，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) 其它名稱:MAX97000EWA+T-ND |
| LT3469ETS8#TRMPBF | 功能描述:IC AMP DVR W/REG 1.3MHZ TSOT23-8 RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:D 類 輸出類型:1-通道（單聲道），帶立體聲耳機 在某負載時最大輸出功率 x 通道數量:930mW x 1 @ 8 歐姆; 40mW x 2 @ 16 歐姆 電源電壓:2.7 V ~ 5.5 V 特點:消除爆音，差分輸入，I²C，靜音，關閉，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) 其它名稱:MAX97000EWA+T-ND |
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