Datasheet

0
50
100
150
200
250
1.5 1.6 1.7 1.8 1.9 2
V
CTL
(V)
VFO Frequency (kHz)
SRT = 0.5 V
RT = 34 kΩ
T
J
= 25°C
G011
120
130
140
150
160
170
180
−40 −20 0 20 40 60 80 100 120
Temperature (°C)
Blanking Period (ns)
G012
0
50
100
150
200
250
300
350
400
450
500
−40 −20 0 20 40 60 80 100 120
Temperature (°C)
Switching Frequency (kHz)
RT = 16.9 kΩ
RT = 34 kΩ
RT = 169 kΩ
G009
0
100
200
300
400
500
600
700
800
900
1000
5 30 55 80 105 125
Programmable Conductance, 10
6
/R
T
(Ω
−1
)
Switching Frequency (kHz)
Actual
Ideal
G010
1.18
1.2
1.22
1.24
1.26
1.28
1.3
12 16 20 24 28 32 36 40 44 48
V
DD
(V)
V
C
Bootstrap Current Source (mA)
T
A
= −40°C
T
A
= 25°C
T
A
= 125°C
V
C
= 8.6 V
G007
2
2.1
2.2
2.3
2.4
2.5
2.6
0.5 0.75 1 1.25 1.5
V
SRT
(V)
CTL PWM/VFO Threshold (V)
T
A
= 25°C
G008
TPS23751
TPS23752
SLVSB97C –JULY 2012–REVISED JANUARY 2014 www.ti.com
TYPICAL CHARACTERISTICS (continued)
V
C
BOOTSTRAP CURRENT SOURCE CTL PWM/VFO THRESHOLD
vs vs
SUPPLY VOLTAGE SRT VOLTAGE
Figure 11. Figure 12.
SWITCHING FREQUENCY SWITCHING FREQUENCY
vs vs
TEMPERATURE PROGRAMMABLE CONDUCTANCE
Figure 13. Figure 14.
VFO FREQUENCY BLANKING PERIOD
vs vs
CTL VOLTAGE TEMPERATURE
Figure 15. Figure 16.
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