参数资料
型号: TB62201AF
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, 1.5 A, PDSO38
封装: 0.450 INCH, 0.65 MM PITCH, HEAT SINK, PLASTIC, SOP-36/38
文件页数: 62/89页
文件大小: 1396K
代理商: TB62201AF
TB62201AF
2005-04-04
65
Power Supply Sequence (Recommended)
Note 1: If the VDD drops to the level of the VDDR or below while the specified voltage is input to the VM pin, the IC is
internally reset. This is a protective measure against malfunction. Likewise, if the VM drops to the level of
the VMR or below while regulation voltage is input to the VDD, the IC is internally reset as a protective
measure against malfunction. To avoid malfunction, when turning on VM or VDD, we recommend you input
the RESET signal at the above timing.
It takes time for the output control charge pump circuit to stabilize. Wait up to tONG time after power on
before driving the motors.
Note 2: When the VM value is between 3.3 to 5.5 V, the internal reset is released, thus output may be on. In such a
case, the charge pump cannot drive stably because of insufficient voltage. We recommend the RESET state
be maintained until VM reaches 20 V or more.
Note 3: Since VDD = 0 V and VM = voltage within the rating are applied, output is turned off by internal reset. At that
time, a current of several mA flows due to the Pass between VM and VDD.
VDD (max)
VDD (min)
VDDR
GND
VM
VM (min)
VMR
GND
Non-
reset
RESET
H
L
RESET
VDD
VM
Internal
reset
RESET
input
…..*
Takes up to tONG until operable.
Non-operable area
t
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