TB62209FG Toshiba, TB62209FG Datasheet - Page 28

• 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

Current Discharge Path when ENABLE=L Input During Operation
OFF
ON
L1
U1
following MODES:
Note: Parasitic diodes are located on dotted lines. In normal MIXED DECAY MODE, the current does not flow
direction to that of normal operation. As a result, the parasitic diodes are not used. If all the output
transistors are forced to switch off, the energy of the coil is discharged via the parasitic diodes.
In Slow Mode, when all output transistors are forced to switch off, coil energy is discharged in the
As shown in the figure at above, an output transistor has parasitic diodes.
To discharge energy from the coil, each transistor is switched on allowing current to flow in the reverse
Charge mode
R
RS
to the parasitic diodes.
R
(Note)
Load
S
V
M
pin
PGND
OFF
U2
ON
L2
OFF
ON
L1
U1
R
Slow mode
RS
R
(Note)
Load
S
V
M
28
pin
PGND
L2
OFF
U2
ON
Input ENABLE=L
OFF
OFF
L1
U1
Forced OFF mode
R
RS
R
(Note)
V
Load
S
M
pin
TB62209FG
PGND
2010-07-02
OFF
OFF
U2
L2