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參數資料
| 型號： | MXB7846 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | H-BRIDGE PWR MOSFET CONTROLLER |
| 中文描述： | 2.375V至5.25V、4線觸摸屏控制器，內置電壓基準及溫度傳感器 |
| 文件頁數： | 1/23頁 |
| 文件大小： | 967K |
| 代理商： | MXB7846 |
General Description
The MXB7846 is an industry-standard 4-wire touch-
screen controller. It contains a 12-bit sampling analog-
to-digital converter (ADC) with a synchronous serial
interface and low on-resistance switches for driving
resistive touch screens. The MXB7846 uses an internal
+2.5V reference or an external reference. The
MXB7846 can make absolute or ratiometric measure-
ments. In addition, this device has an on-chip tempera-
ture sensor, a battery-monitoring channel, and has the
ability to perform touch-pressure measurements without
external components. The MXB7846 has one auxiliary
ADC input. All analog inputs are fully ESD protected,
eliminating the need for external TransZorb devices.
The MXB7846 is guaranteed to operate with a supply
voltage down to +2.375V when used with an external
reference or +2.7V with an internal reference. In shut-
down mode, the typical power consumption is reduced
to under 0.5μW, while the typical power consumption at
125ksps throughput and a +2.7V supply is 650μW.
Low-power operation makes the MXB7846 ideal for bat-
tery-operated systems, such as personal digital assis-
tants with resistive touch screens and other portable
equipment. The MXB7846 is available in 16-pin QSOP
and TSSOP packages, and is guaranteed over the
-40°C to +85°C temperature range.
Applications
Personal Digital Assistants
Portable Instruments
Point-of-Sales Terminals
Pagers
Touch-Screen Monitors
Cellular Phones
Features
ESD-Protected ADC Inputs
±15kV IEC 61000-4-2 Air-Gap Discharge
±8kV IEC 61000-4-2 Contact Discharge
Pin Compatible with MXB7843
+2.375V to +5.25V Single Supply
Internal +2.5V Reference
Direct Battery Measurement (0 to 6V)
On-Chip Temperature Measurement
Touch-Pressure Measurement
4-Wire Touch-Screen Interface
Ratiometric Conversion
SPI/QSPI, 3-Wire Serial Interface
Programmable 8-/12-Bit Resolution
Auxiliary Analog Input
Automatic Shutdown Between Conversions
Low Power (External Reference)
270μA at 125ksps
115μA at 50ksps
25μA at 10ksps
5μA at 1ksps
2μA Shutdown Current
M
2.375V to 5.25V, 4-Wire Touch-Screen Controller
with Internal Reference and Temperature Sensor
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
V
DD
DCLK
CS
DIN
BUSY
DOUT
PENIRQ
V
DD
REF
TOP VIEW
MXB7846
QSOP/TSSOP
X+
Y+
GND
X-
Y-
BAT
AUX
Pin Configuration
Ordering Information
19-2436; Rev 1; 5/04
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
16 QSOP
16 TSSOP
MXB7846EEE
MXB7846EUE
TransZorb is a trademark of Vishay Intertechnology, Inc.
SPI/QSPI are trademarks of Motorola, Inc.
Typical Application Circuit appears at end of data sheet.
相關PDF資料 |
PDF描述 |
|---|---|
| MXB7846EEE | MOSFET Driver IC; Package/Case:28-TSSOP; Fall Time, tf:70ns; High Side MOSFET Drive Type:On-Chip Charge Pump; Leaded Process Compatible:Yes; Load Capacitance:3300pF; Load Voltage Max:40V; MOSFET Driver Type:Quad Drivers, Full Bridge RoHS Compliant: Yes |
| MXB7846EUE | 2.375V to 5.25V, 4-Wire Touch-Screen Controller with Internal Reference and Temperature Sensor |
| MXD1005PA__ | 5-Tap Silicon Delay Line |
| MXD1005PD__ | 5-Tap Silicon Delay Line |
| MXD1005SA__ | 5-Tap Silicon Delay Line |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MXB7846EEE | 功能描述:觸摸屏轉換器和控制器 RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| MXB7846EEE+ | 功能描述:觸摸屏轉換器和控制器 2.375-5.25V 4-Wire Touch-Screen Ctlr RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| MXB7846EEE+T | 功能描述:觸摸屏轉換器和控制器 2.375-5.25V 4-Wire Touch-Screen Ctlr RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| MXB7846EEE-T | 功能描述:觸摸屏轉換器和控制器 RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| MXB7846EUE | 功能描述:觸摸屏轉換器和控制器 RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
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