- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄2087 > MAX1886EZK+T (Maxim Integrated Products)IC VCOM DRIVE BUFFER TSOT23-5 PDF資料下載
參數(shù)資料
| 型號： | MAX1886EZK+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/7頁 |
| 文件大小： | 0K |
| 描述： | IC VCOM DRIVE BUFFER TSOT23-5 |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 應(yīng)用： | TFT-LCD 面板：VCOM 驅(qū)動器 |
| 電路數(shù)： | 1 |
| 電流 - 電源： | 450µA |
| 電流 - 輸出 / 通道： | 550mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 13 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-5 細(xì)型，TSOT-23-5 |
| 供應(yīng)商設(shè)備封裝： | TSOT-23-5 |
| 包裝： | 帶卷 (TR) |
MAX1886
Detailed Description
The MAX1886 operational transconductance amplifier
(OTA) provides high-current output that is ideal for dri-
ving capacitive loads such as the backplane of a TFT
LCD panel. The positive feedback input, FB+, allows
common-mode biasing to mid-supply, or other VCOM
voltage.
The MAX1886 unity-gain bandwidth is GBW = gm/COUT
where gm is the amplifier’s transconductance.
Transconductance is the ratio of the output current to
the input voltage. The gain of the amplifier is dependent
upon the load. The MAX1886 requires only a small
0.47F ceramic output capacitor for stability. The band-
width is inversely proportional to the output capacitor,
so large capacitive loads improve stability; however,
lower bandwidth decreases the buffer’s transient
response time. To improve the transient response
times, the MAX1886’s transconductance increases as
the output current increases (see Typical Operating
Characteristics).
Applications Information
Output Filter Capacitor
The MAX1886 requires a minimum of 0.47F output
capacitance placed close to OUT. To ensure buffer sta-
bility, the output capacitor ESR must be 50m
or lower.
Ceramic capacitors are an excellent choice.
Input Bypass Capacitor
The MAX1886 requires a 0.47F input bypass capacitor
(C2) close to the VCC supply input (see Figure 2). Place
the MAX1886 close to the preceding voltage regulator
output capacitor so that the MAX1886 shares the same
capacitor (C1). Minimize trace length and use wide
High-Current VCOM Drive Buffer
4
_______________________________________________________________________________________
STARTUP WAVEFORM
WITHOUT SOFT-START
MAX1886
toc08
ICC
500mA/div
VCC
10V/div
VFB+
5V/div
VOUT
5V/div
5
s/div
COUT = 0.47
F
SUPPLY CAPACITOR
CHARGING CURRENT
STARTUP WAVEFORMS
WITH SOFT-START
MAX1886
toc09
ICC
500mA/div
VCC
10V/div
VFB+
5V/div
VOUT
5V/div
500
s/div
COUT = 0.47
F
Typical Operating Characteristics (continued)
(VCC = 10V, COUT = 1F, VCM = 5V, TA = +25°C, unless otherwise noted.)
PIN
NAME
DESCRIPTION
1
OUT
Output of Buffer Amplifier. Requires a minimum 0.47F ceramic filter capacitor to GND. Place the
capacitor close to OUT.
2
GND
Ground
3VCC
Voltage-Supply Input. Bypass to GND with a 0.47F capacitor close to the pin. Use the output
capacitor of the preceding voltage regulator as the additional filter capacitor.
4
FB+
Noninverting Input to Buffer Amplifier
5
FB-
Inverting Input to Buffer Amplifier. Feedback must be taken from the output filter capacitor terminal.
Pin Description
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX19005CCS+T | IC DCL QUAD 300MHZ ATE 80TQFP |
| MAX190ACNG+ | IC ADC 12-BIT SER 76KSPS 24-DIP |
| MAX19192ETI+T | IC ADC 8BIT DUAL 10MSPS 28-TQFN |
| MAX194BEPE+ | IC ADC 14BIT 85KSPS SHTDN 16-DIP |
| MAX19505ETM+T | IC ADC 8BIT 1CH 65MSPS 48TQFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1887EEE | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 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 |
| MAX1887EEE+ | 功能描述:電流型 PWM 控制器 CDMA Cellular/PCS System Power Supplies RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 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 |
| MAX1887EEE+T | 功能描述:電流型 PWM 控制器 CDMA Cellular/PCS System Power Supplies RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 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 |
| MAX1887EEE-T | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 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 |
| MAX1888EUA | 功能描述:其他電源管理 RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。