參數(shù)資料
型號(hào)： MCZ33996EKR2
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： 16-Output Switch with SPI Control
中文描述： 16輸出帶有SPI控制開關(guān)
文件頁(yè)數(shù)： 14/23頁(yè)
文件大?。?/td> 306K
代理商： MCZ33996EKR2
Analog Integrated Circuit Device Data
Freescale Semiconductor
14
33996
LOGIC COMMANDS AND REGISTERS
INTRODUCTION
based on output drain-to-source voltage (V
DS
) > 2.7 V.
This
feature is designed to provide protection to loads that
experience more than expected currents and require fast
shutdown. The 33996 is designed to operate in both modes
with full device protection.
PWM ENABLE REGISTER
The PWM Enable register determines the outputs that are
PWM controlled. The first 8 bits of the 24 bit SPI message
word are used to identify the PWM enable command, and the
remaining 16 bits are used to enable and disable the PWM of
the output drivers.
A logic [0] in the PWM Enable register will disable the
outputs as PWM. A logic [1] in the PWM Enable register will
set the specific output as a PWM. Power-ON Reset or the
RST
pin or the RESET command will set the PWM Enable
register to logic [0].
AND/OR CONTROL REGISTER
The AND OR Control register describes the condition by
which the PWM pin controls the output driver. A logic [0] in
the AND /OR Control register will AND the PWM input pin with
the ON /OFF Control register bit. Likewise, a logic [1] in the
AND OR Control register will OR the PWM input pin with the
ON OFF Control register bit (see
Figure 12
). For the AND /
OR control to occur, the PWM Enable bit must be set to
logic [1].
Figure 12. PWM Control Logic Diagram
SERIAL OUTPUT (SO) RESPONSE REGISTER
Fault reporting is accomplished through the SPI interface.
All logic [1s] received by the MCU via the SO pin indicate
fault. All logic [0s] received by the MCU via the SO pin
indicate no fault. All fault bits are cleared on the positive edge
of
CS
. SO bits 15 to 0 represent the fault status of outputs 15
to 0. SO bits 21 to 16 will always return logic [0]. Bit 22
provides over-voltage condition status and bit 23 is set when
any fault is present in the IC. The timing between two write
words must be greater than 450
μ
s to allow adequate time to
sense and report the proper fault status.
RESET COMMAND
The RESET command turns all outputs OFF and sets the
following registers to a POR state (refer to
Table 6
).
ON/OFF Control Register
SFPD Control Register
PWM Enable Register
AND/OR Control Register
The Open Load Current Enable and the Global Shutdown
Registers are not affected by the RESET command.
On/Off Control Bit
On/Off control Bit
PWM IN
PWM IN
AND/OR Control Bit
On/Off Control Bit
PWM Enable Bit
To Gate
Control
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參數(shù)描述
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MCZ33998EG/R2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Switching Power Supply with Linear Regulators
MCZ33998EGR2 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2.6/5.0V SWITCHING POWER RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
MCZ33999EK 功能描述:電源開關(guān) IC - 配電 16 LOW SIDE PWM&SPI RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
MCZ33999EK/R2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-Output Switch with SPI and PWM Control
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