參數(shù)資料
型號(hào)： TB62218FNG
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, PDSO48
封裝： 0.300 INCH, 0.50 MM PITCH, PLASTIC, TSSOP-48
文件頁(yè)數(shù)： 18/24頁(yè)
文件大?。?/td> 463K
代理商： TB62218FNG
TB62218FNG
2010-10-07
3
Block Diagram
In the block diagram, part of the functional blocks or constants may be omitted or simplified for explanatory
purposes.
Note: All the grounding wires of the TB62218FNG must run on the solder mask on the PCB and be externally
terminated at only one point. Also, a grounding method should be considered for efficient heat dissipation.
Careful attention should be paid to the layout of the output, VDD (VM) and GND traces, to avoid short-circuits
across output pins or to the power supply or ground. If such a short-circuit occurs, the TB62218FNG may be
permanently damaged.
Also, utmost care should be taken for pattern designing and implementation of the TB62218FNG since it has the
power supply pins (VM, Rs_A, Rs_B, OUT_A, OUT_A , OUT_B, OUT_B , GND) particularly a large current can run
through. If these pins are wired incorrectly, an operation error or even worse a destruction of the TB62218FNG may
occur.
The logic input pins must be correctly wired, too; otherwise, the TB62218FNG may be damaged due to a current
larger than the specified current running through the IC.
Please note the avbove when designing and implementing IC patterns.
Current Level Set
Detection Circuit
Current Feedback (×2)
Chopper OSC
STANDBY
PHASE_A
IN_A1
IN_A2
PHASE_B
IN_B1
IN_B2
Input Logic
Vcc Voltage
Regulator
OSC
CR-CLK
Converter
OSCM
VCC
Vref
VRS
VMR
Detect
VM
RS
RS COMP
Output Control
(Mixed Decay Control)
VM
VMR
Detect
TSD
ISD
Output
(H-Bridge×2)
Stepping
Motor
STANDBY
VM
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