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參數(shù)資料
| 型號： | PC33926PNBR2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 5 A, PQCC32 |
| 封裝： | 8 X 8 MM, 2.10 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MO-251AADDB-1, QFN-32 |
| 文件頁數(shù)： | 6/25頁 |
| 文件大?。?/td> | 778K |
| 代理商： | PC33926PNBR2 |
Analog Integrated Circuit Device Data
14
Freescale Semiconductor
33926
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
Figure 10. Functional Internal Block Diagram
ANALOG CONTROL AND PROTECTION
CIRCUITRY:
The on-chip Voltage Regulator supplies 3.3V to the
internal logic. The charge pump provides gate drive for the H-
Bridge MOSFETs. The Current and Temperature sense
circuitry provides detection and protection for the output
drivers. Output undervoltage protection shuts down the
MOSFETS.
GATE CONTROL LOGIC:
The 33926 is a monolithic H-Bridge Power IC designed
primarily for any low-voltage DC servo motor control
application within the current and voltage limits stated for the
device. Two independent inputs provide polarity control of
two half-bridge totem-pole outputs. Two independent disable
inputs are provided to force the H-Bridge outputs to tri-state
(high impedance off-state).
H-BRIDGE OUTPUT DRIVERS: OUT1 AND OUT2
The H-Bridge is the power output stage. The current flow
from OUT1 to OUT2 is reversible and under full control of the
user by way of the Input Control Logic. The output stage is
designed to produce full load control under all system
conditions. All protective and control features are integrated
into the Control and Protection blocks. The sensors for
current and temperature are integrated directly into the
output MOSFET for maximum accuracy and dependability.
MCU
INTERFACE
33926
PROTECTION LOGIC CONTROL
COMMAND AND FAULT REGISTERS
GATE CONTROL LOGIC
CURRENT SENSE
VOLTAGE
REGULATION
TEMPERATURE
SENSE
CHARGE
PUMP
H-BRIDGE
OUTPUT DRIVERS
OUT1 - OUT2
ANALOG CONTROL AND PROTECTION
PWM CONTROLLER
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