Data Sheet

© Semiconductor Components Industries, LLC, 2010 www.onsemi.com
FOD8316 Rev. 2 7
FOD8316 — 2.5 A Output Current, IGBT Drive Optocoupler with Desaturation Detection and Isolated Fault Sensing
Notes:
10. Maximum pulse width = 10 µs, maximum duty cycle = 0.2%.
11. Maximum pulse width = 4.99 ms, maximum duty cycle = 99.8%.
12. V
OH
is measured with the DC load current in this testing (Maximum pulse width = 1 ms, maximum duty
cycle = 20%).When driving capacitive loads, V
OH
will approach V
DD
as I
OH
approaches zero units.
13. Positive output supply voltage (V
DD2
– V
E
) should be at least 15 V to ensure adequate margin in excess of the
maximum under-voltage lockout threshold, V
UVLO+
, of 13.5 V.
14. When V
DD2
– V
E
> V
UVLO
and output state V
O
is allowed to go high, the DESAT detection feature is active and
provides the primary source of IGBT protection. UVLO is needed to ensure DESAT detection is functional.
15. The blanking time, t
BLANK
, is adjustable by an external capacitor (C
BLANK
), where t
BLANK
= C
BLANK
× (V
DESAT
/ I
CHG
).
Switching Characteristics
Apply over all recommended conditions, typical value is measured at V
DD1
= 5 V, V
DD2
– V
SS
= 30 V, V
E
– V
SS
= 0 V,
and T
A
= 25°C; unless otherwise specified.
I
D
SCHG
Blanking Capacitor
Discharge Current
V
DESAT
= 7 V 10 36 mA 40
V
UVLO+
Under Voltage Lockout
Threshold
(14)
V
O
> 5 V @ 25°C 10.8 11.7 12.7 V 17, 31,
41
V
UVLO-
V
O
< 5 V @ 25°C 9.8 10.7 11.7 V
UVLO
HYS
Under Voltage Lockout
Threshold Hysteresis
@ 25°C 0.4 1.0 V
V
DESAT
DESAT Threshold
(14)
V
DD2
– V
E
> V
ULVO-
,
V
O
< 5 V
6.0 6.5 7.2 V 18, 40
Symbol Parameter Conditions Min. Typ. Max. Units
Figure
t
PHL
Propagation Delay Time to
Logic Low Output
(17)
Rg = 10 Ω, Cg = 10nF,
f = 10 kHz,
Duty Cycle = 50%
(16)
140 250 ns 19, 20,
21, 22,
23, 24,
42, 50
t
PLH
Propagation Delay Time to
Logic High Output
(18)
160 250 ns
PWD Pulse Width Distortion,
| t
PHL
– t
PLH
|
(19)
20 100 ns
PDD Skew Propagation Delay Difference
Between Any Two Parts or
Channels, ( t
PHL
– t
PLH
)
(20)
–150 150 ns
t
R
Output Rise Time (10% to 90%) 25 ns 42, 50
t
F
Output Fall Time (90% to 10%) 25 ns
t
DESAT(90%)
DESAT Sense to 90% V
O
Delay
(21)
Rg = 10 Ω, Cg = 10 nF,
V
DD2
– V
SS
= 30 V
450 700 ns 25, 43
t
DESAT(10%)
DESAT Sense to 10% V
O
Delay
(21)
2.7 4 µs 26, 28,
29, 43
t
DESAT(FAULT)
DESAT Sense to Low Level FAULT
Signal Delay
(22)
1.4 5 µs 27, 43,
51
t
DESAT(LOW)
DESAT Sense to DESAT Low
Propagation Delay
(23)
250 ns 43
t
RESET
(FAULT)
RESET to High Level FAULT Signal
Delay
(24)
3 6 20 µs 30, 44,
51
t
DESAT(MUTE)
DESAT Input Mute 10 22 35 µs
PW
RESET
RESET Signal Pulse Width 1.2 µs
Symbol Parameter Conditions Min. Typ. Max. Units Figure
Electrical Characteristics (Continued)
Apply over all recommended conditions, typical value is measured at V
DD1
= 5 V, V
DD2
– V
SS
= 30 V, V
E
– V
SS
= 0V,
and T
A
= 25°C; unless otherwise specified.