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| 型号： | MCZ33800EK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 24/39页 |
| 文件大小： | 0K |
| 描述： | IC ENGINE CTRL SW/DVR 54-SOIC |
| 标准包装： | 26 |
| 应用： | 自动 |
| 电流 - 电源： | 10mA |
| 电源电压： | 5 V ~ 36 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 54-BSSOP（0.295"，7.50mm 宽）裸露焊盘 |
| 供应商设备封装： | 54-SOICW-EP |
| 包装： | 管件 |
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FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
33800 will wait for the Short Fault Time period and then shut
down the output drive, setting the fault status bit to a 1 in the
Serial Output Response Register.
Table 11. PWM Short Fault Timer
Predriver 1
PWM FLT Timer
Bits
V PWR
VDSNS1
210
543
876
000
001
010
011
Fault Timer Select
30 μ s
60 μ s
120 μ s
240 μ s
Gate Drive
Control &
Diagnostics
Predriver 2
V PWR
GD1
VSSNS123
VDSNS2
Gate Drive
100
480 μ s
Control &
GD2
Diagnostics
101
110
960 μ s
No Change
VSSNS123
111 No Change
Notes: Tolerance on fault timer setting is ±10% with calibrated part.
Differential
+ Amplifier
?
+
?
LRFDBK
Example: Load Measurement Operation
To perform an accurate load resistance measurement the
33800 device uses an alternate channel to determine a
differential load voltage and forces a known load current.
With the differential load voltage and the forced current the
load resistance is calculated. As shown in Table 6 , channel 2
is used as the battery reference for the load measurement of
channel 1. The current through the channel 1 load is set by
the external resistor. Setting the resistance to 25 ? forces a
VCAL
+
?
REXT
current of 100mA. The measurement is sampled within
200 μ s and is held for 150ms on the Load Resistance
Feedback (L RFDBK ) output. The differential amplifier has a
fixed gain of 2.5V. Hence for this example, a 10 ? load will
produce a 2.5V output. When a second pair is selected for
measurement, the sample and hold is reset and the
measurement is immediately directed to the new load
measurement. The previous pair immediately revert back to
normal operation.
Figure 9. Example of Channel 1 Measurement
OCTAL OUTPUT DRIVER (OCTAL SERIAL
SWITCH; OSS)
The 33800 provides flexible control of 8 low side driver
outputs. Outputs 1 and 2 are specifically designed with higher
current limit to accommodate lamp inrush current. The device
allows for parallel control and/or SPI control through the use
of several input command words. This section describes the
logic operation and commands for the octal driver.
The 33800 Octal Output Driver message set consists of
eight commands, and one response as shown in Table 12.
Bits 11 through 15 determine the specific command and bits
0 through 10 determine how a specific output will operate.
The 33800 operates on the command word on the rising edge
of CS. The Most Significant Bit (MSB) is sent and received
first.
Note Upon Power-ON Reset all OSS bits are defined as
33800
Analog Integrated Circuit Device Data
24
Freescale Semiconductor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCZ33800EKR2 | 功能描述:马达/运动/点火控制器和驱动器 AUTO ENG CONTROL IC RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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| MCZ33810EK/R2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Automotive Engine Control IC |
| MCZ33810EKR2 | 功能描述:马达/运动/点火控制器和驱动器 Ignition Injector Driver RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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