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参数资料
| 型号： | MAX4940BETN+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC DGTL PULSER HI-VOLT 56TQFN |
| 标准包装： | 37 |
| 应用： | 医疗用超声波成像，声纳 |
| 电源电压： | 2.37 V ~ 6 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
19-4591; Rev 0; 4/09
EVALUA
TION KIT
AVA ILABLE
Dual/Quad, Unipolar/Bipolar,
High-Voltage Digital Pulsers
General Description
The MAX4940/MAX4940A integrated circuits generate
high-voltage, high-frequency, unipolar or bipolar pulses
from low-voltage logic inputs. These quad/dual pulsers
feature independent logic inputs, independent high-volt-
age pulser outputs with active clamps and independent
high-voltage supply inputs.
The MAX4940/MAX4940A feature quad, high-voltage puls-
ers with 8.5 I output impedance for the high-voltage
outputs and a 21 I impedance for the active clamp. The
high-voltage outputs can provide 2.0A (typ) output current.
All devices use two logic inputs per channel to con-
trol the positive and negative pulses. The MAX4940/
MAX4940A have a dedicated input to control the active
clamp. All devices feature an independent enable input
EN. All digital inputs are CMOS compatible (see the
Ordering Information/Selector Guide).
The MAX4940/MAX4940A are available in a 56-pin, 8mm x
8mm, TQFN exposed pad package and are specified over
the 0 N C to +70 N C commercial temperature range.
Features
S High-Density Quad-Channel Pulser in One
Package
S 0 to +220V Unipolar or Q 110V Bipolar Outputs
S 8.5 I (typ) Output Impedance and 2.0A (typ)
Output Current
S 21 I (typ) Always-On Active Clamp with Integrated
Blocking Diodes
S Integrated Output Diodes (MAX4940A Only)
S No Special Power-Supply Sequencing Required
for Trilevel Applications
S Matched Rise/Fall Times and Matched
Propagation Delays
S CMOS-Compatible Logic Inputs
S 56-Pin, 8mm x 8mm, TQFN Package
Ordering Information/
Selector Guide
Warning: Exercise caution. The MAX4940/MAX4940A are
designed to operate with high voltages.
Applications
Ultrasound Medical Imaging
Flaw Detection
PART
MAX4940 CTN+
MAX4940A CTN+
OUTPUT
BLOCKING
DIODE
None
OUT2A,
OUT2B
OUTPUT
CURRENT
(A)
2.0 (typ)
2.0 (typ)
PIN-
PACKAGE
56 TQFN-EP*
56 TQFN-EP*
Piezoelectric Drivers
Test Instruments
Cleaning Equipment
TOP VIEW
Note: Devices operate over the 0°C to +70°C temperature range.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
Pin Configuration
42 41 40 39 38 37 36 35 34 33 32 31 30 29
OUT1A 43
GND 44
V PP1 45
C GP1A 46
C GN1A 47
C GN2A 48
C GP2A 49
28 OUT1B
27 GND
26 V PP1
25 C GP1B
24 C GN1B
23 C GN2B
22 C GP2B
C DP2A 50
C DN2A 51
C DN1A 52
C DP1A 53
V CC 54
MAX4940
MAX4940A
21 C DP2B
20 C DN2B
19 C DN1B
18 C DP1B
17 V CC
GND 55
V DD 56
+
*EP
16 GND
15 V EE
1
2
3
4
5
6
7
8
9
10 11 12 13 14
*EP = EXPOSED PAD. CONNECT EP TO V NN1 .
TQFN
_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4940BETN+ | 功能描述:功率驱动器IC Unipolar/Bipolar Digital Pulser RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX4940BETN+T | 功能描述:功率驱动器IC Unipolar/Bipolar Digital Pulser RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX4940CTN+ | 功能描述:功率驱动器IC Unipolar/Bipolar Digital Pulser RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX4940CTN+T | 功能描述:功率驱动器IC Unipolar/Bipolar Digital Pulser RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX4940EVKIT+ | 功能描述:电源管理IC开发工具 Maxim Evaluation Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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