A3932SEQTR

Series: -
Number of Outputs: 1
Mounting Type: Surface Mount
Evaluation Tools: -
Current - Output: -
Voltage - Load: -
Applications: DC Motor Controller, Brushless (BLDC), 3 Phase
Operating Temperature: -20°C ~ 85°C
Manufacturer: Allegro Microsystems Inc
Voltage - Supply: 18 V ~ 50 V
Packaging: Tape & Reel (TR)
Package / Case: 32-PLCC
Supplier Device Package: 32-PLCC


Features:

Drives Wide Range of N-Channel MOSFETs
Synchronous Rectifi cation
Power MOSFET Protection
Adjustable Dead Time for Cross-Conduction Pro tec tion
100% Duty Cycle Operation
Selectable Fast or Slow Current-Decay Modes
Internal PWM Peak Current Control
High-Current Gate Drive
Motor Lead Short-to-Ground Protection
Internal 5-V Regulator
Brake Input
PWM Torque-Control Input
Fault-Diagnostic Output
Tachometer Output
Thermal Shutdown
Undervoltage Protection


Pinout




Specifications

Supply Voltage, V_BB .................................. 50 V
Peak Regulator Voltage, V_REG ................... 15 V
Logic Input Voltage Range,
V_IN ............................... -0.3 V to V_LCAP + 0.3 V
Sense Voltage Range,
VSENSE ...................................... -5 V to +1.5 V
Output Voltage Range,
V_SA, V_SB, V_SC .............................. -5 V to +50 V
V_GHA, V_GHB, V_GHC .. ..............-5 V to V_BB + 17 V
V_CA, V_CB, V_CC ................................. V_SX + 17 V
Operating Tem per a ture Range,
T_A ......................................... -20°C to +85°C
Junction Temperature, T_J ................... +150°C
Storage Temperature Range,
T_S ...................................... -55°C to +150°C


Description

The A3932SEQ is a three-phase MOSFET con trol ler for use with bipolar brushless dc motors. Its high gate-current drive capability allows driving a wide range of n-channel power MOSFETs and can support motor supply voltages to 50 V. Bootstrapped high-side drive blocks provide the fl oat ing positive supplies for the gate drive and minimize the component count normally required. The high-side cir cuit ry also em ploys a unique FET monitoring circuit that ensures the gate voltages are at the proper levels before turn-on and during the ON cycle.

Internal fi xed off-time PWM current-control circuitry A3932SEQ can be used to regulate the maximum load current to a desired value. The peak loadcurrent limit is set by the user's selection of an input reference volt age and external sensing resistor. The fi xed off-time pulse duration is set by a user-selected external RC timing network. For added fl exibility, the continued ...

Parameters:

Technical/Catalog Information	A3932SEQTR
Vendor	Allegro Microsystems Inc
Category	Integrated Circuits (ICs)
Applications	DC Motor Controller, Brushless (BLDC), 3 Phase
Number of Outputs	1
Voltage - Supply	18 V ~ 50 V
Voltage - Load	-
Current - Output	-
Operating Temperature	-20°C ~ 85°C
Package / Case	32-PLCC
Packaging	Tape & Reel (TR)
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	A3932SEQTR A3932SEQTR