TC78H600FNG/FTG
2012-09-05
5
Absolute Maximum Ratings
(Ta =25°C)
Characteristics Symbol Rating Unit
Vcc 6 V
Power supply voltage
VM 18 V
Peak,
Iout(AO), Iout(BO),
per one phase,
tw ≤ 10ms, duty 20%
1.0 A
Continuously,
Iout(AO), Iout(BO),
per one phase
0.8 A
Output current
I
ALERT
4 mA
Output voltage of ALERT V
ALERT
6 V
Input voltage V
IN
-0.2 to Vcc+0.2 V
0.71 (Note 1)
TC78H600FNG
0.96 (Note 2)
Power dissipation P
D
TC78H600FTG 3.17(Note 3)
W
Operation temperature T
opr
-20 to 85 °C
Storage temperature T
stg
-55 to 150 °C
Note 1: IC only
Note 2: When mounted on a glass epoxy board (50 mm × 50 mm × 1.6 mm, Cu area: 40 %)
Note 3: Mounted on the board (76 mm × 114 mm × 1.6 mm, 4 layers in accordance with the relevant JESD-51)
The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be
exceeded during operation, even for an instant.
If any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably
altered, in which case the reliability and lifetime of the device can no longer be guaranteed.
Moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in other
equipment. Applications using the device should be designed so that no absolute maximum rating will ever be
exceeded under any operating condition.
Operating Range
(Ta = -20 to 85°C)
Characteristics Symbol Conditions Min Typ. Max Unit
Controlled power supply voltage Vcc
(opr)
― 2.7 3.3 5.5 V
Motor power supply voltage VM
(opr)
― 2.5 5 15 V
Output current I
OUT
― ― ― 0.8 A
Input voltage V
IN
― ― ― 5.5 V
Input voltage Vref ― 0.4 2.5 Vcc－1.8 V
PWM frequency
(Input in direct PWM drive)
fPWM
duty50%
IN1A, IN2A, PWMA,
IN1B, IN2B, PWMB
1 ― 500 kHz
Oscillation frequency fosc Cosc=220pF 160 320 480 kHz
Chopping frequency fchop
In constant current
PMW mode
180pF ≤ Cosc ≤ 260pF
20 40 60 kHz
Maximum current is limited by power dissipation. It depends on the ambient temperature, excitation mode, and heat
radiation of the board.
