tmp89fm82t TOSHIBA Semiconductor CORPORATION, tmp89fm82t Datasheet - Page 327

• Manufacturer Part Number: tmp89fm82t
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Overload protection
setting current
Input MG pin
Input CL pin
PWM output
("H" active)
MG setting current
CRA<CLCNT>. The sampling times can be set in the range of 1 to 15 times at 250 ns period (when
fcgck = 8 MHz). If a low level is detected as many times as the specified number, overload protection
is assumed.
facility allows selecting to disable no phases, all phases, PWM phases, or all upper phases/all lower
phases. When selected to disable all upper phases/all lower phases, port output is determined by their
turn-on status just before being disabled. When two or more upper phases are active, all upper phases
are turned on and all lower phases are turned off; When two or more lower phases are active, all upper
phases are turned off and all lower phases are turned on.
protective circuit is disabled, overload protective interrupt request (INTCLM) are not generated.
The number of overload protective input sampling times can be set by using the EMG-
The output disabled phases during overload protection are set by using the EMGCRB<CLMD>. This
When output phase are cut off, output is inactive (low level in case of high active). When the overload
Figure 19-18 Example of Protection Circuit Operation
I (Current)
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Overload protection
(Output cut off)
(High-Z output)
MG protection
t (time)
TMP89FM82T