tb62726afg TOSHIBA Semiconductor CORPORATION, tb62726afg Datasheet - Page 18

• Manufacturer Part Number: tb62726afg
• Description: 16-bit Constant-current Led Driver With Operating Voltage Of 3.3-v And 5-v
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Points to Remember on Handling of ICs
(1)
(2)
Heat Radiation Design
In using an IC with large current flow such as power amp, regulator or driver, please design the device
so that heat is appropriately radiated, not to exceed the specified junction temperature (Tj) at any time
and condition. These ICs generate heat even during normal use. An inadequate IC heat radiation
design can lead to decrease in IC life, deterioration of IC characteristics or IC breakdown. In addition,
please design the device taking into considerate the effect of IC heat radiation with peripheral
components.
Back-EMF
When a motor rotates in the reverse direction, stops or slows down abruptly, a current flow back to the
motor’s power supply due to the effect of back-EMF. If the current sink capability of the power supply
is small, the device’s motor power supply and output pins might be exposed to conditions beyond
absolute maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in
system design.
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TB62726ANG/AFG
2006-06-14