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參數(shù)資料
| 型號： | MAX1543ETP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | TFT LCD DC-to-DC Converter with Operational Amplifiers |
| 中文描述： | 1.8 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封裝： | 5 X 5 MM, 0.8 MM HEIGHT, EXPOSED PAD, TQFN-20 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大小： | 506K |
| 代理商： | MAX1543ETP |
M
TFT LCD DC-to-DC Converter with
Operational Amplifiers
_______________________________________________________________________________________
9
Typical Operating Characteristics (continued)
(V
IN
= 3.3V, V
MAIN
= 8V, f
OSC
= 1.2MHz, T
A
= +25
°
C, unless otherwise noted.)
OPERATIONAL AMPLIFIER
SMALL-SIGNAL STEP RESPONSE
200ns/div
POS_
50mV/div
AC-COUPLED
OUT_
50mV/div
AC-COUPLED
V
SUP
= 8V, A
V
= 1
CH2 + OVER
6.234%
CH2 - OVER
2.352%
OPERATIONAL AMPLIFIER
LARGE-SIGNAL STEP RESPONSE
1
μ
s/div
V
1V/div
CHI AMPL
4.86V
CHI + OVER
4.970%
A
V
= 1
Pin Description
PIN
MAX1542
MAX1543
NAME
FUNCTION
1
1
COM
Internal High-Voltage MOSFET Switch Common Terminal. Do not allow the voltage on
COM to exceed V
SRC
.
2
2
SRC
Switch Input. Source of the internal high-voltage P-channel MOSFET. Bypass SRC to
PGND with a minimum of 0.1μF close to the pins.
3, 15, 20
—
—
3
N.C.
I.C.
No Connection. Not internally connected.
Internal Connection. Make no connection to this pin.
4
4
PGND
Power Ground. PGND is the source of the main boost N-channel power MOSFET. Connect
PGND to the output capacitor ground terminals through a short, wide PC board trace.
Connect to analog ground (AGND) underneath the IC.
5
6
7
8
9
10
11
5
6
7
8
9
10
11
AGND
POS1
NEG1
OUT1
OUT2
NEG2
POS2
Analog Ground. Connect to power ground (PGND) underneath the IC.
Operational Amplifier 1 Noninverting Input
Operational Amplifier 1 Inverting Input
Operational Amplifier 1 Output
Operational Amplifier 2 Output
Operational Amplifier 2 Inverting Input
Operational Amplifier 2 Noninverting Input
12
12
SUP
Operational Amplifier Power Input. Positive supply rail for the OUT1 and OUT2 amplifiers.
Typically connected to V
MAIN
. Bypass SUP to AGND with a 0.1μF capacitor.
13
13
LX
Power MOSFET N-Channel Drain and Switching Node. Connect the inductor and catch
diode to LX and minimize the trace area for lowest EMI.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1543ETP+ | 功能描述:LCD 驅(qū)動器 TFT LCD DC/DC Conv w/Op Amps RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| MAX1543ETP+T | 功能描述:LCD 驅(qū)動器 TFT LCD DC/DC Conv w/Op Amps RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| MAX1543ETP-T | 功能描述:LCD 驅(qū)動器 RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| MAX1543EVKIT | 功能描述:顯示開發(fā)工具 MAX1542/3 Eval Kit RoHS:否 制造商:4D Systems 產(chǎn)品:4Display Shields 工具用于評估:?OLED-160-G1, ?OLED-160-G2 接口類型:Serial 工作電源電壓:5 V |
| MAX1544ETL | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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