3973, 3974, 39741 Selling Leads, Datasheet
MFG:MSP430F149IPMR Package Cooled:TI D/C:01+
3973, 3974, 39741 Datasheet download
Part Number: 3973
MFG: MSP430F149IPMR
Package Cooled: TI
D/C: 01+
3973, 3974, 39741
- Table of contents:
Info of 3973
Info of 3974
Info of 39741
Attentive hint
Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
Top Sellers:
TOP
About 3973
PDF/DataSheet Download
Datasheet: 3973
File Size: 206177 KB
Manufacturer: ALLEGRO [Allegro MicroSystems]
Download : Click here to Download
About 3974
PDF/DataSheet Download
Datasheet: 3974
File Size: 161474 KB
Manufacturer: ALLEGRO [Allegro MicroSystems]
Download : Click here to Download
About 3970
PDF/DataSheet Download
Datasheet: 3970
File Size: 124744 KB
Manufacturer: AGERE [Agere Systems]
Download : Click here to Download
3973 Maximum Ratings
Load Supply Voltage, VBB .................... 35 V
Output Current, IOUT........................ ±1.0 A
Logic Supply Voltage, VDD................... 7.0 V
Logic Input Voltage Range,
VIN ......................... -0.3 V to VDD + 0.3 V
Reference Voltage, VREF ........................ 3 V
Sense Voltage (dc), VS ................... 500 mV
Package Power Dissipation, PD
A3973SB ....................................... 3.1 W
A3973SLB ..................................... 2.2 W
Operating Temperature Range,
TA ............................... -20°C to +85°C
Junction Temperature, TJ ............. +150°C
Storage Temperature Range,
TS ............................. -55°C to +150°C
Output Current, IOUT........................ ±1.0 A
Logic Supply Voltage, VDD................... 7.0 V
Logic Input Voltage Range,
VIN ......................... -0.3 V to VDD + 0.3 V
Reference Voltage, VREF ........................ 3 V
Sense Voltage (dc), VS ................... 500 mV
Package Power Dissipation, PD
A3973SB ....................................... 3.1 W
A3973SLB ..................................... 2.2 W
Operating Temperature Range,
TA ............................... -20°C to +85°C
Junction Temperature, TJ ............. +150°C
Storage Temperature Range,
TS ............................. -55°C to +150°C
3973 Features
±1 A, 35 V Continuous Output Rating
Low rDS(on) DMOS Output Drivers
Optimized Microstepping via 6-Bit Linear DACs
Programmable Mixed, Fast, and Slow Current-Decay Modes
4 MHz Internal Oscillator for Digital Timing
Serial-Interface Controls Chip Functions
Synchronous Rectification for Low Power Dissipation
Internal UVLO and Thermal Shutdown Circuitry
Crossover-Current Protection
Precision 2 V Reference
Inputs Compatible with 3.3 V or 5 V Control Signals
Sleep and Idle Modes
Low rDS(on) DMOS Output Drivers
Optimized Microstepping via 6-Bit Linear DACs
Programmable Mixed, Fast, and Slow Current-Decay Modes
4 MHz Internal Oscillator for Digital Timing
Serial-Interface Controls Chip Functions
Synchronous Rectification for Low Power Dissipation
Internal UVLO and Thermal Shutdown Circuitry
Crossover-Current Protection
Precision 2 V Reference
Inputs Compatible with 3.3 V or 5 V Control Signals
Sleep and Idle Modes
3974 General Description
Designed for pulse-width modulated (PWM) current control of two dc motors, the A3974SED is capable of output currents to ±1.5 A and operating voltages to 50 V. Internal fixed off-time PWM current-control timing circuitry can be programmed via a serial interface to operate in slow, fast, and mixed current-decay modes.
Independant ENABLE input terminals are provided for use in controlling the speed and torque of each dc motor with externally applied PWM control signals.
Synchronous rectification circuitry allows the load current to flow through the low rDS(on) of the DMOS output driver during the current decay. This feature will eliminate the need for external clamp diodes in most applications, saving cost and external component count, while minimizing power dissipation.
3974 Maximum Ratings
Load Supply Voltage, VBB .................................50 V
Output Current, IOUT .................................. ±1.5 A
Logic Supply Voltage, VDD .............................. 7.0 V
Logic Input Voltage Range, VIN
Continous ...............................-0.3 V to VDD + 0.3 V
tW < 30 ns ............................ -1.0 V to VDD + 1.0 V
Reference Voltage, VREF ................................... 3 V
Sense Voltage (dc), VS
Continous ....................................................... 0.5 V
tW < 1 s ........................................................2.5 V
Package Power Dissipation, PD ......................3.9 W
Operating Temperature Range,
TA .................................................-20°C to +85°C
Junction Temperature, TJ ........................... +150°C
Storage Temperature Range,
TS .............................................. -55°C to +150°C
Output Current, IOUT .................................. ±1.5 A
Logic Supply Voltage, VDD .............................. 7.0 V
Logic Input Voltage Range, VIN
Continous ...............................-0.3 V to VDD + 0.3 V
tW < 30 ns ............................ -1.0 V to VDD + 1.0 V
Reference Voltage, VREF ................................... 3 V
Sense Voltage (dc), VS
Continous ....................................................... 0.5 V
tW < 1 s ........................................................2.5 V
Package Power Dissipation, PD ......................3.9 W
Operating Temperature Range,
TA .................................................-20°C to +85°C
Junction Temperature, TJ ........................... +150°C
Storage Temperature Range,
TS .............................................. -55°C to +150°C
3974 Features
±1.5 A, 50 V Continuous Output Rating
Low rDS(on) DMOS Output Drivers
Programmable Slow, Fast, and Mixed Current-Decay Modes
Serial-Interface Controls Chip Functions
Synchronous Rectification for Low Power Dissipation
Internal UVLO and Thermal Shutdown Circuitry
Crossover-Current Protection
Sleep and Idle Mode
Low rDS(on) DMOS Output Drivers
Programmable Slow, Fast, and Mixed Current-Decay Modes
Serial-Interface Controls Chip Functions
Synchronous Rectification for Low Power Dissipation
Internal UVLO and Thermal Shutdown Circuitry
Crossover-Current Protection
Sleep and Idle Mode
3974 Connection Diagram
MT58L64L18CT-10
Price: 4-6 USD
MT58L64L18CT-10 TQFP100
DL-7140-211M
Price: 5-6.5 USD
DL-7140-211M laser tube
74LVC74APG
Price: 4-5 USD
74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2
Price: 6.5-8 USD
CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX
Price: 0.284-0.286 USD
PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2
Price: 1-2 USD
IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB
Price: 1-2 USD
a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1
Price: 0.124-0.2 USD
PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L
Price: 0.177-0.178 USD
RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A
Price: 0.053-0.055 USD
STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013
Price: 1.45-1.5 USD
STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B
Price: 0.073-0.075 USD
SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components
