ISL58214
Typical Performance Curves
1200
1000
800
600
400
200
I SRC vs V HEAD vs SCALE CODE
(REG 1-21 = 88h) (VSO = 4.5V)
(R SET = 620 Ω )
3FFh
300h
200h
100h
80h
40h
500
400
300
200
100
(R SET = 620 Ω )
3FFh
300h
200h
100h
I SNK vs V HEAD vs SCALE CODE
(Reg 1-21 = 8Fh) (VSO = 5.0V)
0
0.0
0.5
1.0
1.5 2.0 2.5 3.0
3.5
4.0
4.5
0
0
1
2 3
4
5
1200
V HEADROOM (V)
FIGURE 1. I SRC CURRENT vs V SD vs I SCALE_BIAS
90
V HEADROOM (V)
FIGURE 2. I SNK CURRENT vs V DS vs I SCALE_BIAS
1000
R FREQ = 3900 Ω
80
PHFMON = 0xFF
70
800
600
400
R FREQ = 4700 Ω
60
50
40
PHFMON = 0x80
PHFMON = 0x01
200
0
32
64
96
128
160
192
224
256
30
200
400M 600M 800M
1G
700
600
500
400
300
HFMFREQ CODE (DEC)
FIGURE 3. HFM CONTROL
HFM FREQUENCY (Hz)
FIGURE 4. HFM OSCILLATOR CURRENT CONSUMPTION
15
13
11
9
7
200
0.0
0.6
1.2
1.8
2.4
3.0
5
0.0
0.8
1.6
2.4
3.2
4.0
I APC (mA)
FIGURE 5. I OUT /I TH BANDWIDTH vs I TH
11
I SLOPE (mA)
FIGURE 6. I OUT /I SLOPE BANDWIDTH vs I SLOPE
FN6944.1
July 29, 2013
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