isl6571 Intersil Corporation, isl6571 Datasheet - Page 6

• Manufacturer Part Number: isl6571
• Description: Complementary Mosfet Driver And Synchronous Half-bridge Switch
• Manufacturer: Intersil Corporation

Typical Performance Curves/Setup
FIGURE 6. BIAS SUPPLY CURRENT/POWER vs FREQUENCY
PWM
FIGURE 8. ISL6571 POWER DISSIPATION vs FREQUENCY
126
108
+12V
90
72
54
36
18
+12V
+5V
4.00
2.50
2.00
1.50
3.50
3.00
0
100 200
C
VCC
200
ISL6571
V
I
V
PHASE
PVCC
PVCC
V
I
L
VCC
LOUT
PVCC
OUT
CONTROL
DRIVERS
GND
FIGURE 4. TYPICAL TEST CIRCUIT
300
AT 12A
AND
= 10V
= 5V
= 0A
300
= 1PH
= 12A
SWITCHING FREQUENCY (kHz)
PVCC BOOT
= 5V
400
SWITCHING FREQUENCY (kHz)
C
400
PVCC
PGND
500
500
6
600
600
VIN
PHASE
700
C
700
VIN
'I
800
LOUT
C
C
L
OUT
BOOT
OUT
800
(p-p)
900 1000
V
900 1000
OUT
V
R
OUT
OUT
R
1.26
1.08
0.90
0.72
0.54
0.36
0.18
0
OUT
ISL6571
FIGURE 5. UPPER MOSFET ON RESISTANCE vs
FIGURE 7. LOWER MOSFET ON RESISTANCE vs
FIGURE 9. ISL6571 POWER DISSIPATION vs CURRENT AT
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.8
0.6
1.6
1.4
1.2
1.0
0.6
1.8
1.6
1.4
1.2
1.0
0.8
0
-25
0
-25
12Vin/1.5Vout
V
L
PVCC
1.5
OUT
TEMPERATURE
TEMPERATURE
200kHz, 300kHz, 500kHz, 750kHz
0
V
V
0
I
= 1PH
I
GS
3.0
GS
D
D
= 5V
= 20A
= 12A
= 10V
= 10V
4.5
25
25
OUTPUT CURRENT (A)
6.0
50
50
7.5
Tj (°C)
Tj (°C)
9.0
75
75
10.5 12.0
100
100
750kHz
13.5 15.0 16.5
125
125
500kHz
300kHz
200kHz
FN9082.4
150
150