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參數資料
| 型號： | MC33999 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 16-Output Switch with SPI and PWM Control |
| 中文描述： | 16 - SPI和輸出的PWM控制開關 |
| 文件頁數： | 11/16頁 |
| 文件大?。?/td> | 627K |
| 代理商： | MC33999 |
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33999
11
both input and output words transferring the Most Significant
Bit (MSB) first.
SO Output driver Power Supply (SOPWR) Pin
The SOPWR pin is used to supply power to the 33999 SO
output driver and Power-ON Reset (POR) circuit. To achieve
low standby current on VPWR supply, power must be removed
from the SOPWR pin. The 33999 will be in reset with all drivers
OFF when SO
PWR
is below 2.5 V. The 33999 does not detect
overvoltage on the SOPWR supply pin.
Output/Input (OUT0–OUT15) Pins
These pins are low-side output switches controlling the load.
Reset
(RST)
Pin
The Reset (
RST
) pin is the active low reset input pin used to
turn OFF all outputs, thereby clearing all internal registers.
Battery Input (VPWR) Pin
The VPWR pin is used as the input power source for the
33999. The voltage on VPWR is monitored for overvoltage
protection and shutdown. An overvoltage condition (> 50
μ
s)
on the VPWR pin causes the 33999 to shut down all outputs
until the overvoltage condition is removed. Upon return to
normal input voltage, the outputs respond as programmed by
the overvoltage bit in the Global Shutdown/Retry Control
register. The overvoltage threshold on the VPWR pin is
specified as 27.5 V to 35 V with 1.4 V typical hysteresis.
Following an overvoltage shutdown of output drivers, the
Overvoltage Fault and the Any Fault bits in the SO bit stream
will be logic [1].
PWM
Pin
The PWM Control pin is provided to support PWM of any
combination of outputs. Logic for PWM control is provided in
the
LOGIC OPERATION
section (below).
Pulse Width Module (PWMn) Pins
PWM0, PWM1, PWM6, PWM7, PWM8, PWM9, PWM14,
and PWM15 input pins allow direct PWM control of OUT0,
OUT1, OUT6, OUT7, OUT8, OUT9, OUT14, and OUT15,
respectively. Logic for PWM control is provided in the
LOGIC
OPERATION
section.
LOGIC OPERATION
Introduction
The 33999 provides flexible control of 16 low-side driver
outputs. The device allows PWM and ON/OFF control through
the use of several input command words. This section
describes the logic operation and command registers of the
33999.
The 33999 message set consists of seven messages as
shown in
Table 1
. Bits 23 through 18 determine the specific
command and bits 15 through 0 determine how a specific
output will operate. The 33999 operates on the command word
on the rising edge of
CS
.
Note
Upon Power-ON Reset all bits are defined as shown in
Table 1
.
Table 1. SPI Control Commands
MSB
LSB
Commands
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ON/OFF Control Register
0 = off, 1 = on
0
0
0
0
0
0
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Open Load Current Enable
0 = disable, 1 = enable
0
0
0
0
0
1
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Global Shutdown/Retry
Control
0 = shutdown, 1 = retry
0
0
0
0
1
0
Thermal
Bit 0
Over-
voltage
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SFPD Control
1 = therm only, 0 = V
DS
0
0
0
0
1
1
X
X
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
PWM Enable
0 = SPI only, 1 = PWM
0
0
0
1
0
0
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AND/OR Control
0 = PWM pin AND
with SPI
1 = PWM pin OR
with SPI
0
0
0
1
0
1
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Reset
0
0
0
1
1
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SO Response
0 = No Fault, 1 = Fault
Any
Fault
Over-
voltage
0
0
0
0
0
0
OUT
15
OUT
14
OUT
13
OUT
12
OUT
11
OUT
10
OUT
9
OUT
8
OUT
7
OUT
6
OUT
5
OUT
4
OUT
3
OUT
2
OUT
1
OUT
0
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC33999EK | 功能描述:多路器開關 IC 16 LOW SIDE PWM&SPI RoHS:否 制造商:Texas Instruments 通道數量:1 開關數量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MC33999EK | 制造商:Freescale Semiconductor 功能描述:IC SWITCH 16 OUT SPI/PWM 54SOIC |
| MC33999EKR2 | 功能描述:多路器開關 IC 16 LOW SIDE PWM&SPI RoHS:否 制造商:Texas Instruments 通道數量:1 開關數量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MC3399DW | 制造商: 功能描述: 制造商:undefined 功能描述: |
| MC340 | 制造商:Motorola Inc 功能描述:Bipolar Junction Transistor, NPN Type, TO-126 |
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