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| 型号： | MAX4807CTN+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/20页 |
| 文件大小： | 0K |
| 描述： | IC DGTL PULSER DUAL 56TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 通用型，过电压保护 |
| 电流 - 电源： | 100µA |
| 电源电压： | 2.7 V ~ 6 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 56-WFQFN 裸露焊盘 |
| 供应商设备封装： | 56-TQFN-EP（7x7） |
| 包装： | 带卷 (TR) |
Dual, Unipolar/Bipolar, High-Voltage
Digital Pulsers
Table 1. Truth Table
INPUTS
OUTPUTS
SHDN
EN_
INP_ INN_ INC_
OP_
ON_
OCP_,
OCN_
STATE
0
X
X
X
0
High
Impedance
High High Powered down, INP_/INN_ disabled, gate-source
Impedance Impedance short disabled
0
X
X
X
1
High
Impedance
High
Impedance
GND
Powered down, INP_/INN_ disabled, gate-source
short disabled
1
0
X
X
0
High
Impedance
High High Powered up, INP_/INN_ disabled, gate-source short
Impedance Impedance enabled
1
0
X
X
1
High
Impedance
High
Impedance
GND
Powered up, INP_/INN_ disabled, gate-source short
enabled
1
1
0
0
0
High
Impedance
High High Powered up, all inputs enabled, gate-source short
Impedance Impedance disabled
1
1
0
0
1
High
Impedance
High
Impedance
GND
Powered up, all inputs enabled, gate-source short
disabled
1
1
0
1
X
High
Impedance
V NN_
High Powered up, all inputs enabled, gate-source short
Impedance disabled
1
1
1
0
X
V PP_
High High Powered up, all inputs enabled, gate-source short
Impedance Impedance disabled
1
1
1
1
X
V PP_
V NN_
High
Impedance
Not allowed (3ns maximum overlap)
X = Don’t care.
0 = Logic-low.
1 = Logic-high.
on and off states of the high-side FET, INN_ controls the
on and off states of the low-side FET, INC_ controls the
active clamp, and EN_ controls the gate-to-source short.
These signals give complete control of the output stage
of each driver (see Table 1 for all logic combinations).
The MAX4806/MAX4807/MAX4808 logic inputs are
CMOS logic compatible, and the logic level is refer-
enced to V DD for maximum flexibility. The low 5pF (typ)
input capacitance of the logic inputs reduces loading
and increases switching speed.
High-Voltage Output Protection
(MAX4807 Only)
The high-voltage outputs of the MAX4807 feature an
integrated overvoltage protection circuit that allows the
user to implement multilevel pulsing by connecting the
outputs of multiple pulser channels in parallel. Internal
diodes in series with the ON_ and OP_ outputs prevent
the body diode of the high-side and low-side FETs from
switching on when a voltage greater than V NN_ or V PP_
is present on the output (see Figure 9).
Active Clamps
The MAX4806/MAX4807/MAX4808 feature an active
clamp circuit to improve pulse quality and reduce 2nd
harmonic output. The clamp circuit consists of an n-
channel (DC-coupled) and a p-channel (AC and DC
delay coupled) high-voltage FETs that are switched on
or off by the logic clamp input (INC_). The MAX4806
and the MAX4807 feature protected clamp devices
allowing the clamp circuit to be used in bipolar pulsing
circuits (see Figures 1 and 2). A diode in series with the
OCN_ output prevents the body diode of the low-side
FET from turning on when a voltage lower than GND is
present. Another diode in series with the OCP_ output
prevents the body diode of the high-side FET from turn-
ing on when a voltage higher than ground is present.
The MAX4808 does not have diode protection on the
clamp outputs. Thus, the device is suitable for use in
circuits where only unipolar pulsing is required.
The user can connect the active clamp input (INC_) to a
logic-high voltage and drive only the INP_ and INN_
inputs to minimize the number of signals used to drive the
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX480C/D | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX480CPA | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX480CSA | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX480CSA+ | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX480CSA+T | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
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