LNK520
Conditions
SOURCE = 0 V; TJ = -40 to 125 °C
See Figure 14
Parameter
Symbol
Min
Typ
Max
Units
(Unless Otherwise Specified)
OUTPUT
TJ = 25 °C
ID = 25 mA
28
42
32
48
ON-State
Resistance
RDS(ON)
Ω
TJ = 100 °C
OFF-State Drain
Leakage Current
VC = 6.2 V
VD = 560 V, TA = 125 °C
IDSS
50
µA
V
See Note D
VC = 6.2 V, TA = 25 °C
BVDSS
700
36
Breakdown Voltage
DRAIN Supply
Voltage
See Note E
50
V
NOTES:
A. For specifications with negative values, a negative temperature coefficient corresponds to an increase in
magnitude with increasing temperature, and a positive temperature coefficient corresponds to a decrease in
magnitude with increasing temperature.
B. IC is increased gradually to obtain maximum current limit at di/dt of 90 mA/µs. Increasing IC further would
terminate the cycle through duty cycle control.
C. This parameter is normalized to IDCT to correlate to power supply output current (it is multiplied by
IDCT(nominal)/IDCT).
D. Breakdown voltage may be checked against minimum BVDSS specification by ramping the DRAIN pin voltage
up to but not exceeding minimum BVDSS
.
E. It is possible to start up and operate LinkSwitch at DRAIN voltages well below 36 V. However, the CONTROL
pin charging current is reduced, which affects start-up time, auto-restart frequency, and auto-restart duty cycle.
Refer to the characteristic graph on CONTROL pin charge current (IC) vs. DRAIN voltage (Figure 16) for low
voltage operation characteristics.
E
2/05
15
POWERINT [ Power Integrations ]
