TB62209FG Toshiba, TB62209FG Datasheet - Page 21

• Manufacturer Part Number: TB62209FG
• Manufacturer: Toshiba

Specifications of TB62209FG

• Function: Driver
• Vopmax (vm*): 34V (40V)
• Io (lpeak): 1.5A (1.8A)
• Excitation: 1/16 step
• I/f: CLK input
• Mixed Decay Mode: included
• Package: HSOP36
• Rohs Compatible†: yes

Set current
Set current
Set current
12. CURRENT MODES
(MIXED ( SLOW + FAST) DECAY MODE Effect)
value
value
value
○ Current value in increasing (Sine wave)
○ Sine wave in decreasing (When using MIXED DECAY Mode with large attenuation ratio (MDT%) at
in the fast decay mode, there is no charge mode but the slow + fast mode (slow to fast is at MDT) in the
next chopping cycle.
Note: The above charts are schematics. The actual current transient responses are curves.
○ Sine wave in decreasing (When using MIXED DECAY Mode with small attenuation ratio (MDT%) at
attenuation)
If RNF, current watching point, was the set current value (output current) in the mixed decay mode and
attenuation)
Charge
Charge
Charge
Slow
Slow
Slow
Fast
Fast
Fast
Charge
Charge
Charge
Slow
Slow
Slow
Set current
Set current
Set current
value
value
value
Fast
Fast
Fast
21
Because current attenuates slowly, it takes a long time
for the current to follow the set current value (or the
current does not follow).
Because current attenuates so quickly, the current
immediately follows the set current value.
Charge
Slow
Slow
Slow
Fast
Fast
Fast
Charge
Charge
Slow
Slow
TB62209FG
Fast
2010-07-02
Slow
Fast
Fast