ISL78229 Datasheet, PDF (22/71 Pages) Intersil Corporation – 2-Phase Boost Controller with Drivers

ISL78229
Performance Curves Unless otherwise specified, operating conditions for the oscilloscope waveforms are V_IN = 12V,
V_OUT = 36V and T_A = +25°C. (Continued)
10
9
8
7
6
5
4
3
2
1
0
-50 -25
0
25
50
75 100 125 150
TEMPERATURE (°C)
1.610
1.609
1.608
1.607
1.606
1.605
1.604
1.603
1.602
1.601
1.600
1.599
1.598
1.597
1.596
1.595
1.594
1.593
1.592
1.591
1.590
-50 -25
0
25
50
75 100 125 150
TEMPERATURE (°C)
FIGURE 41. IC OPERATIONAL QUIESCENT CURRENT vs
TEMPERATURE, IC NOT SWITCHING
FIGURE 42. V_{REF_CC} SYSTEM ACCURACY vs TEMPERATURE,
MEASURED AT THE IMON PIN, VREF_CC = 1.6V
(DEFAULT)
21
20
19
18
17
16
15
-50 -25
0
25
50
75 100 125 150
TEMPERATURE (°C)
FIGURE 43. NTC PIN OUTPUT CURRENT vs TEMPERATURE, THE NTC
PIN SHORTED TO GROUND
29.0
28.5
28.0
27.5
VIN = 55V
VIN = 4V
27.0
26.5
26.0
-50 -25
0
25
50
75 100 125 150
TEMPERATURE (°C)
FIGURE 44. IMON OUTPUT CURRENT ACCURACY (CURRENT
SENSING SIGNAL OUTPUT) vs TEMPERATURE,
V_RSENx = 30mV, R_SETx = 665Ω (0.1%)
1.610
1.609
1.608
1.607
1.606
1.605
1.604
1.603
1.602
1.601
1.600
1.599
1.598
1.597
1.596
1.595
1.594
1.593
1.592
1.591
1.590
-50 -25
0
25
50
75 100 125 150
TEMPERATURE (°C)
FIGURE 45. VREF_DAC SYSTEM ACCURACY vs TEMPERATURE,
MEASURED AT THE FB PIN, VREF_DAC = 1.6V
(DEFAULT)
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1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-50 -25
0
25
50
75 100 125 150
TEMPERATURE (°C)
FIGURE 46. INTERNAL LDO DROPOUT VOLTAGE vs TEMPERATURE,
80mA LOAD CURRENT ON LDO OUTPUT (PVCC)
FN8656.3
February 12, 2016