ISL6745A Intersil Corporation, ISL6745A Datasheet - Page 6

• Manufacturer Part Number: ISL6745A
• Description: Improved Bridge 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
0.01
0
100
0.02
200
(RTD = 49.9kΩ)
0.03
300
0.04
400
RTD CURRENT (mA)
0.05
500
6
CT (pF)
0.06
600
1.07
1.06
1.05
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.07
700
FIGURE 5. TIMING CAPACITOR VOLTAGE vs RTD
0
0.08
800
10
0.09 0.10
900
20
30
1k
ISL6745A
40
RTD (kΩ)
50
1-10
1-10
60
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
100
10
FIGURE 4. CHARGE CURRENT vs TEMPERATURE
4
3
-40
10
70
CT = 680pF
CT = 470pF
CT = 1000pF
FIGURE 2. DEADTIME vs CAPACITANCE
-25
20
80
-10
30
90
5
40
TEMPERATURE (°C)
100
20
RTD (kΩ)
50
35
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60
50
CT = 100pF
70
65
CT = 270pF
September 11, 2008
80
80
95
90
FN6703.1
110
100