|Category||Power Management => Power Monitoring => Contact Monitor|
|Description||MC33884 Advance Information - Multiple Switch Detection Interface|
|Company||Motorola Semiconductor Products|
|Datasheet||Download MC33884DW datasheet
The MC33884 Switch Monitor Interface is a monolithic silicon integrated circuit (IC) that performs switch monitoring functions. The device provides efficient interface between electrical switches and low voltage microprocessors. The MC33884 supplies switch contact pullup and pulldown current while monitoring the input voltage level. All inputs are protected for transients when implemented with an appropriate static discharge capacitor used on the inputs. There are four modes of operation Sleep, Normal, Polling, and Polling + INT Timer. Sleep mode reduces the current drain to a quiescent current level 10 mA and disables the IC. Normal mode interrupts the microprocessor whenever any external switch changes it's OPEN or CLOSED state. Polling mode reads a switch status periodically and interrupts the microprocessor only when an external switch is sensed as being CLOSED. The Polling + INT Timer mode is similar to the Polling mode, with the addition of an interrupt being sent to the microprocessor if a switch is sensed CLOSED or upon the internal interrupt timer "timing out". An interrupt is always ultimately sent to the microprocessor in this mode. All modes of operation are easily programmed via the Serial Peripheral Interface (SPI) control. The MC33884 has the following features: Full Operation with 7.0 V VPWR 26 V, Limited Operation with 5.5 V VPWR 7.0 V Input Voltage Range: 40 V Interfaces Directly to Microprocessors Using SPI Protocol 24Lead Wide Body SOIC Package Wakeup on Change of Monitored Switch Status Programmable Wetting Current 4 Programmable Inputs to Monitor 4 SwitchtoBattery or 4 SwitchtoGround Switches 6 (fixed function) Inputs to Monitor 6 SwitchtoGround Switches 2 (fixed function) Inputs to Monitor 2 SwitchtoBattery Switches Standby Current During Normal Mode = 100 mA Quiescent Current in Sleep Mode < 10 mA Reset (RST) Input Defaults the Device to Sleep Mode Active Interrupt (INT) on Change of Switch State in Normal Mode 4 Modes of Operation (Sleep, Normal, Polling, Polling + INT Timer) Designed to Operate TA 105°C
This document contains information on a new product. Specifications and information herein are subject to change without notice.Metallic or Nonmetallic Enable or Disable Input Block (TriState)
SwitchGround, Metallic or Nonmetallic, Enable or Disable FIB (TriState)
SwitchBatt, Metallic or Nonmetallic, Enable or Disable FIB (TriState)
Mode Switch Status Quiescent Current Control
|Related products with the same datasheet|
|Some Part number from the same manufacture Motorola Semiconductor Products|
|MC33884DWR2 MC33884 Advance Information - Multiple Switch Detection Interface|
|MC33886 H-bridge Integrated Circuit|
|MC33886DH 5.2 a H-bridge|
|MC33887 Integrated H-bridge With Sleep Mode|
|MC33887DH MC33288 Advance Information - Solid State Relay For Automotive Flasher Applications|
|MC33888 Quad High Side Switch With Current Sense|
|MC33888FB MC33888FB Quad High Side And Octal Low Side Switch For Automotive|
|MC33889 System Base Chip - Lite With Low Speed CAN|
|MC33889DW MC33889 System Basis Chip With Low Speed Fault Tolerant CAN Interface|
|MC3392DW Low Side Protected Switch|
|MC33972 Multi SW Detect Interface W/suppressed Wake-up|
|MC33982 Intelligent High Current Self-protected Hi-side Switch|
|MC33984 Dual Intelligent High-current Self-protected Silicon High-side Switch|
|MC33989 System Base Chip With High Speed CAN|
|MC33989DW MC33989 System Basis Chip With High Speed CAN Transceiver|
MC100LVEL12 : Low Impedance Driver
MC9SDG256CMFUR2 : HCS12 Family MC9S12DP256B Users Guide, Zip Format
MPX2100GVP : Compensated MPX2100 100 Kpa On-chip Temperature Compensated And Calibrated Silicon Pressure Sensors
MRF19090SR3 : Power MRF19090, MRF19090S, MRF19090SR3 1990 Mhz, 90 W, 26 V Lateral N-channel RF Power MOSFETs
MPC826XACZUSPMX : Powerquicc˘â II Integrated Communications Processor Hardware Specifications
PPC5553AVF132R2 : Microcontroller
MRF8P20160HR3 : RFPowerFieldEffectTransistors N--ChannelEnhancement--ModeLateralMOSFETs RFPowerFieldEffectTransistors N--ChannelEnhancement--ModeLateralMOSFETs DesignedforCDMAbasestationapplicationswithfrequenciesfrom1880to 2025MHz.CanbeusedinClassABandClassCforalltypicalcellularbase stationmodulationformats.
MMG3015NT1 : Heterojunction Bipolar Transistor Technology (InGaP HBT) Heterojunction Bipolar Transistor Technology (InGaP HBT) Broadband High Linearity Amplifier The MMG3015NT1 is a general purpose amplifier that is internally input and outputmatched. It is designed for a broad range of Class A, small--si
5962-8768103XA : Current Mode. ti UC1825B, High Speed PWM Controller. Improved versions of the UC3823/UC3825 PWMs Compatible with Voltage or Current-Mode Topologies Practical Operation at Switching Frequencies 1MHz 50ns Propagation Delay to Output High Current Dual Totem Pole Outputs (2A Peak) Trimmed Oscillator Discharge Current Low 100µA Startup Current Pulse-by-Pulse Current Limiting Comparator Latched Overcurrent.
AD401M92RBA-5 : Low Voltage Operation is More Suitable to be Used on Battery Backup, Portable Electronic.
AD408M184RBA-5 : Low Voltage Operation is More Suitable to be Used on Battery Backup, Portable Electronic.
GS-R280BE : Battery Eliminator. The is a switch mode constant voltage BATTERY ELIMINATOR that can deliver an output voltage of DC output current (Peak output current = 1.8 Ap). Two versions of the INPUT PLUG ADAPTOR are available: WASHER TIP VERSION: GS-R28.0BE-E (Ordering Number) SPRING-LOADED TIP VERSION: GS-R28.0BE-A (Ordering Number) (See page 2 for mechanical data) ELECTRICAL.
M63022FP : for ODDs.
MC7824E : 3-Terminal 1A Positive Voltage Regulator. Output Current to 1A Output Voltages of 24V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection The MC78XXE/LM78XXE/MC78XXAE series of three terminal positive regulators are available in the TO-220/D-PAK package and with several fixed output voltages, making them useful in a wide range of applications.
P18TG-1205E21 : Power/w = 4 ;; Input/vdc = 9-18/18-36/36-72 ;; Output/vdc = 3,3/5/12/15/18Regulated ;; ISOlation = 1500V ;; Package = DIP24.
PT5501 : Non-Isolated DC-DC Converters. Single-Device: 5V/3.3V Input DSP Compatible 90% Efficiency Small Footprint Space-Saving package Adjustable Output Voltage Output Inhibit Function Short Circuit Protection Solderable Copper Case The PT5500 ExcaliburTM power modules are a series of high-performance Integrated Switching Regulators (ISRs). Rated 3A, these modules operate from input voltages.
PT6367A : Plug-in Power Solutions->Non-Isolated->Single Posi. ti PT6367, 1V 11A, 12-V Input Adjustable Step-down Isr.
SI-3050R : Linear Regulator IC, 5Terminal And Low-dropout Voltage. 5-Terminal, Full-Mold, Low Dropout Voltage Dropper Type with Reset Function Reset signal output (As the output rises it sends a reset signal to the microcomputer to secure normal operation of the system. As the output drops a reset signal is also sent out to protect the system.) Reset signal detection output voltage level Voth 92% of output voltage.
TA7736F : DC Motor Driver ic.
TA79006SB : 1a Three Terminal Negative Voltage Regulators.
XC6205Series : Input Voltage = 2.0-10V ;; Output Voltage = 0.9-1.75V ;; Max Output Current = 150mA ;; Accu Racy = 2% ;; Quiescent Current Typ. = 70A ;; Quiescent Current Standby = 0.1A ;; Dropout Voltage = 600mV @ 100mA (Vout=1.5V) ;; Conditions = Vout=5.0V ;; Package = SOT-25 USP-6B SOT-89-5 ;; Note =.
MIC4102 : 100V Half Bridge MOSFET Driver with Anti-Shoot Through Protector The MIC4102 is a high frequency, 100V Half Bridge MOSFET driver IC featuring internal anti-shoot-through protection. The low-side and high-side gate drivers are controlled by a single input signal to the PWM pin. The MIC4102 implements adaptive anti-shoot-through circuitry to optimize.
TPS71519 : 50-mA, 1.9-V High Input-Voltage LDO Voltage Regulator in SC-70 The TPS715xx low-dropout (LDO) voltage regulators offer the benefits of high input voltage, low-dropout voltage, low-power operation, and miniaturized packaging. The devices, which operate over an input range of 2.5 V to 24 V, are stable with any capacitor (≥ 0.47 µF). The low dropout.
LM5116 : The LM5116 is a synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle by cycle current limiting and ease of loop compensation.
TEA1781T : GreenChip PC Secondary Control IC The TEA1781T and TEA1782T are designed to cooperate with the TEA1771T primary side controller in a unique converter topology based on the active clamp forward converter. On the secondary side the output voltages are regulated via bidirectional switches. A typical application area of this converter is a power supply.
SPDCPOE12 : DC-DC Modules Datasheet Power over ethernet 10 W modulee. Input voltage range: 10 W output Based on ST devices integrating standard PoE interface and current mode PVM controller IEEE 802.3af compliant (PoE standard) Class 0 (zero), 0-12.96 W input Output voltage 12 V Output current 0.8 A Output voltage 5 % Ripple 1 % rms Transient response ±5 ˝ load to full load Operating temperature range 70 °C Input transient.
FAN9611 : Interleaved Dual BCM PFC Controller The FAN9611/12 family of interleaved dual Boundary- Conduction-Mode (BCM) Power-Factor-Correction (PFC) controllers operate two parallel-connected boost power trains 180Â° out of phase. Interleaving extends the maximum practical power level of the control technique from about 300W to greater than 800W. Unlike the continuous.