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| 型号： | MCZ33880EG |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 18/25页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH OCTAL SER I/O 28-SOIC |
| 标准包装： | 26 |
| 类型： | 高端/低端驱动器 |
| 输入类型： | SPI |
| 输出数： | 8 |
| 导通状态电阻： | 550 毫欧 |
| 电流 - 峰值输出： | 1.4A |
| 电源电压： | 5.5 V ~ 24.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
SHORTED LOAD FAULT
A shorted load (overcurrent) fault can be caused by any
output being shorted directly to supply or an output causing
the device to current limit (linear short).
There are two safety circuits progressively in operation
during load short conditions providing system protection:
1. The device’s output current is monitored in an analog
fashion using SENSEFET ? approach and current
Drain-to-Source Clamp
Voltage (V CL = 45 V)
Drain Current
(I D = 0.3 A)
Drain Voltage
Clamp Energy
(E J = I A x V CL )
limited.
2. The device’s output thermal limit is sensed and when
attained causes only the specific faulted output to shut
down. The output will remain off until cooled. The
device will then reassert the output automatically. The
cycle will continue until the fault is remove or the
command bit instructs the output off.
UNDERVOLTAGE SHUTDOWN
An undervoltage V DD condition will result in the global
Drain-to-Source ON
Voltage (V DS(ON) )
GND
V BAT
Drain-to-Source ON
Voltage (V DS(ON) )
GND
Current
Area (I A )
Current
Area (I A )
Time
Time
Clamp Energy
(E J = I A x V CL )
shutdown of all outputs. The undervoltage threshold is
between 3.9 V and 4.6 V. When V DD goes below the
threshold, all outputs are turned OFF and the Fault Status
(FS) register is cleared. As V DD returns to normal levels, the
FS register will resume normal operation.
Source Current
(I S = 0.3 A)
Source Clamp Voltage
(V CL = -20 V)
Source Voltage
An undervoltage condition at the VPWR pin will not cause
output shutdown and reset. When V PWR is between 5.5 V
and 9.0 V, the output will operate per the command word.
However, the status as reported by the serial data output
(DO) pin may not be accurate below 9.0 V V PWR . Proper
operation at V PWR voltages below 5.5 V cannot be
guaranteed.
OUTPUT VOLTAGE CLAMP
Each output of the 33880 incorporates an internal voltage
clamp to provide fast turn-off and transient protection of each
output. Each clamp independently limits the drain-to-source
voltage to 45 V for low-side drive configurations and -20 V for
high-side drive configurations (see Figure 25 ). The total
energy clamped (E J ) can be calculated by multiplying the
current area under the current curve (I A ) times the clamp
voltage (V CL ).
Characterization of the output clamps, using a single pulse
non-repetitive method at 0.3 A, indicates the maximum
Figure 25. Output Voltage Clamping
SPI CONFIGURATIONS
The SPI configuration on the 33880 device is consistent
with other devices in the OSS family. This device may be
used in serial SPI or parallel SPI with the 33291 and 33298.
Different SPI configurations may be provided. For more
information, contact Analog Products Division.
REVERSE BATTERY
The 33880 has been designed with reverse battery
protection on the VPWR pin. However, the device does not
protect the load from reverse battery. During the reverse
battery condition, current will flow through the load via the
output MOSFET substrate diode. Under this circumstance
relays may energize and lamps will turn on. If load reverse
battery protection is desired, a diode must be placed in series
with the load.
energy to be 50 mJ at 150 ° C junction temperature per output.
33880
Analog Integrated Circuit Device Data
18
Freescale Semiconductor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCZ33880EGR2 | 功能描述:电源开关 IC - 配电 CONFIG OCTAL SERIAL SW RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MCZ33880EW | 功能描述:电源开关 IC - 配电 CONFIG OCTAL SER SWITCH RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MCZ33880EWR2 | 功能描述:电源开关 IC - 配电 CONFIG OCTAL SER SWITCH RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MCZ33883EG | 功能描述:功率驱动器IC FULL BRIDGE GATE DRIVER 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 |
| MCZ33883EG | 制造商:Freescale Semiconductor 功能描述:SEMICONDUCTOR |
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