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| 型号： | MAX5064BATC+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/20页 |
| 文件大小： | 0K |
| 描述： | IC MOSFET DRIVER 12-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 配置： | 半桥 |
| 输入类型： | 差分 |
| 延迟时间： | 35ns |
| 电流 - 峰： | 2A |
| 配置数： | 1 |
| 输出数： | 2 |
| 高端电压 - 最大（自引导启动）： | 125V |
| 电源电压： | 8 V ~ 12.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WQFN 裸露焊盘 |
| 供应商设备封装： | 12-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
125V/2A, High-Speed,
Half-Bridge MOSFET Drivers
Topologies like the two-switch forward converter, where
both high- and low-side switches are turned on and off
simultaneously, can have the BBM function disabled by
leaving BBM unconnected. When disabled, t BBM is typi-
cally 1ns.
Driver Logic Inputs (IN_H, IN_L, IN_H+,
IN_H-, IN_L+, IN_L-)
The MAX5062_/MAX5064A are CMOS (V DD / 2) logic-
input drivers while the MAX5063_/MAX5064B have TTL-
compatible logic inputs. The logic-input signals are
independent of V DD . For example, the IC can be pow-
ered by a 10V supply while the logic inputs are provid-
ed from a 12V CMOS logic. Also, the logic inputs are
protected against voltage spikes up to 15V, regardless
shoot-through in the absence of external BBM delay
during the narrow pulse at low duty cycle (see Figure 2).
At high duty cycle (close to 100%) the DH minimum low
pulse width (t DMIN-DH-L ) must be higher than the DL
minimum low pulse width (t DMIN-DL-L ) to avoid overlap
and shoot-through (see Figure 3). In the case of
MAX5062/MAX5063/MAX5064, there is a possibility of
about 40ns overlap if an external BBM delay is not pro-
vided. We recommend adding external delay in the INH
path so that the minimum low pulse width seen at INH
is always longer than t PW-MIN . See the Electrical
Characteristics table for the typical values of t PW-MIN .
V DD
of the V DD voltage. The TTL and CMOS logic inputs
have 400mV and 1.6V hysteresis, respectively, to avoid
double pulsing during transition. The logic inputs are
high-impedance pins and should not be left floating.
A)
V IN
The low 2.5pF input capacitance reduces loading and
increases switching speed. The noninverting inputs are
pulled down to GND and the inverting inputs are pulled
PWM IN
INH
DH
N
V OUT
up to V DD internally using a 1M ? resistor. The PWM
HS
output from the controller must assume a proper state
while powering up the device. With the logic inputs
INL
DL
N
floating, the DH and DL outputs pull low as V DD rises
up above the UVLO threshold.
The MAX5064_ has two logic inputs per driver, which
provide greater flexibility in controlling the MOSFET.
MAX5062B/MAX5062D/MAX5063B/MAX5063D/MAX5064
Use IN_H+/IN_L+ for noninverting logic and IN_H-/
IN_L- for inverting logic operation. Connect
IN_H+/IN_L+ to V DD and IN_H-/IN_L- to GND if not
used. Alternatively, the unused input can be used as an
ON/OFF function. Use IN_+ for active-low and IN_- for
active-high shutdown logic.
Table 1. MAX5064_ Truth Table
B)
PWM IN
t DMIN-DH-H
IN_H+/IN_L+
Low
Low
High
High
IN_H-/IN_L-
Low
High
Low
High
DH/DL
Low
Low
High
Low
DH
Minimum Pulse Width
The MAX5062/MAX5063/MAX5064 uses a single-shot
level shifter architecture to achieve low propagation
delay. Typical level shifter architecture causes a mini-
mum (high or low) pulse width (t DMIN ) at the output that
may be higher than the logic-input pulse width. For
MAX5062/MAX5063/MAX5064 devices, the DH mini-
mum high pulse width (t DMIN-DH-H ) is lower than the DL
minimum low pulse width (t DMIN-DL-L ) to avoid any
BUILT-IN
DEAD TIME
DL
t DMIN-DL-L
Figure 2. Minimum Pulse-Width Behavior for Narrow Duty-
Cycle Input (On-Time < t PW-MIN )
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5065 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Phase, +0.6V to +3.3V Output Parallelable, Average-Current-Mode Controllers |
| MAX5065EAI | 功能描述:电流型 PWM 控制器 Dual-Phase .6-3.3V Parallelable Average RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX5065EAI+ | 功能描述:电流型 PWM 控制器 Dual-Phase .6-3.3V Parallelable Average RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX5065EAI+T | 功能描述:电流型 PWM 控制器 Dual-Phase .6-3.3V Parallelable Average RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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