ISL78420 Datasheet, PDF (6/16 Pages) Intersil Corporation – 100V, 2A Peak, Half-Bridge Driver with Tri-Level PWM Input and Adjustable Dead-Time

ISL78420
Switching Specifications V_DD = V_HB = 12V, V_SS = V_HS = 0V, R_DT = 0kΩ, No Load on LO or HO, Unless Otherwise Specified. Boldface
limits apply over the operating temperature range, -40°C to +125°C. (Continued)
PARAMETERS
SYMBOL
TEST
CONDITIONS
T_J = +25°C
MIN TYPE MAX
T_J = -40°C to +125°C
MIN
(Note 9)
MAX
(Note 9)
UNITS
Maximum Dead-Time Delay (Note 10)
LO Falling to HO Rising
t_DTLHmax R_DT = 8k,
PWM 0 to 1
150 220 300
-
-
ns
Either Output Rise/Fall Time
(10% to 90%/90% to 10%)
t_RC,t_FC C_L = 1nF
-
10
-
-
-
ns
Bootstrap Diode Turn-On or Turn-Off Time
t_BS
-
10
-
-
-
ns
NOTES:
9. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits are established by
characterization and are not production tested.
10. Dead-Time is defined as the period of time between the LO falling and HO rising or between HO falling and LO rising.
Timing Diagram
V_PWMH
V _{M ID L}
PWM
t_PLLO
t_PHHO
Rise and fall transitions of the PWM inputs are
exaggerated to clearly illustrate the low, m id, and high
threshold levels.
V_MIDH
V_PWML
PWM
HO
HO
LO
LO
t_DTLH
t_DTHL
EN
EN
6
FN8296.1
September 24, 2012