ISL78420_15 Datasheet, PDF (7/18 Pages) Intersil Corporation – 100V, 2A Peak, Half-Bridge Driver with Tri-Level PWM Input and Adjustable Dead-Time

ISL78420
Typical Performance Curves Unless otherwise specified, operating conditions at: T = +25°C; V_DD = EN = 12V;
V_SS = HS = 0V; Capacitor from HB to HS pin C_BOOT = 0.47µF; 100kΩ load on LO and HO to VSS.
8
7 T_A= -40°C to +125°C
6
5
4
3
2
1
0
1
10
100
1000
FREQUENCY (kHz)
FIGURE 3. I_DD OPERATING CURRENT vs FREQUENCY, R_DT = 8kΩ
9
8 ^TA^{= -40°C to +125°C}
7
6
5
4
3
2
1
0
1
10
100
1000
FREQUENCY (kHz)
FIGURE 4. I_DD OPERATING CURRENT vs FREQUENCY, R_DT = 47kΩ
10.0
T_A= -40°C to +125°C
V_DD = HB = 12V
10.0
T_A = -40°C to +125°C
V_DD = HB = 12V
1.0
T = -40°C _{T = +25°C}
T = +125°C
0.1
1
T = +85°C
10
100
FREQUENCY (kHz)
1000
FIGURE 5. I_HB OPERATING CURRENT vs FREQUENCY, R_DT = 8kΩ
50
45
t_PLO
40
35
30
t_PHO
25
20
-60 -40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
FIGURE 7. PROPAGATION DELAYS vs TEMPERATURE
1.0
T = -40°C T = +25°C
T = +125°C
0.1
1
T = +85°C
10
100
1000
FREQUENCY (kHz)
FIGURE 6. I_HB OPERATING CURRENT vs FREQUENCY, R_DT = 47kΩ
320
240
200
T = -40°C
160
140
120
T = +125°C
100
80
T = +85°C
60
T = +25°C
40
T_A = -40°C to 125°C
t_DTLH and t_DTHL
20
8
16
24 32 40 48 56 64 72 80
RESISTOR ON RDT PIN (kΩ)
FIGURE 8. DEAD TIME DELAY VS RDT RESISTOR
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7
FN8296.3
November 6, 2014