Datasheet

Figure 1. Typical Source Saturation Voltage
vs Output Current (Recirculation Period)
Figure 2. Typical Source Saturation Voltage
vs Output Current (Conduction Period)
UC3717A
PARAMETERS TEST CONDITIONS MIN TYP MAX UNITS
Sink Diode-Transistor Pair
Saturation Voltage, V
SAT
(Pins 1, 15) I
m
= 0.5A 0.8 1.1 1.35 V
I
m
= 1A 1.6 2.3 V
Leakage Current V
m
= 40V 300
µ
A
Diode Forward Voltage, V
F
I
m
= 0.5A 1.1 1.5 V
I
m
= 1A 1.4 2 V
ELECTRICAL
CHARACTERISTICS (cont.)
(Refer to the test circuit, Figure 6. V
M
= 36V, V
CC
= 5V, V
R
= 5V, T
A
= 0
°
C to 70
°
C, unless
otherwise stated, T
A
= T
J
.)
Figure 3. Typical Sink Saturation
Voltage vs Output Current
Figure 4. Typical Power Dissipation
vs Output Current
Figure 5. Typical Waveforms with MA Regulating
(phase = 0)
3