ISL6744 Intersil Corporation, ISL6744 Datasheet - Page 6

• Manufacturer Part Number: ISL6744
• Description: Intermediate Bus PWM Controller
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 1. OSCILLATOR CT DISCHARGE CURRENT GAIN
FIGURE 3. CAPACITANCE vs OSCILLATOR FREQUENCY
600
500
400
300
200
100
65
60
55
50
45
40
0
100
0.01
200
0.02
(RTD = 49.9kΩ)
300
0.03
400
0.04
RTD CURRENT (mA)
500
0.05
CT (pF)
6
600
0.06
1.07
1.06
1.05
1.04
1.03
1.02
1.01
1.00
0.99
0.98
700
0.07
FIGURE 5. TIMING CAPACITOR VOLTAGE vs RTD
0
800
0.08
10
900
0.09 0.1
20
1000
30
ISL6744
40
RTD (kΩ)
50
1-10
1-10
60
100
10
FIGURE 4. CHARGE CURRENT vs TEMPERATURE
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
4
3
10
70
-40
FIGURE 2. DEADTIME vs CAPACITANCE
1000pF
20
-25
680pF
470pF
80
CT =
-10
30
90
5
100
40
TEMPERATURE (°C)
20
RTD (kΩ)
50
35
www.DataSheet4U.com
60
50
CT = 100pF
70
65
CT = 270pF
September 22, 2005
80
80
95
90
FN9147.8
110
100