LNK501
Conditions
(Unless Otherwise Specified)
SOURCE = 0 V; TJ = -40 °C to 125 °C
See Figure 12
Parameter
Symbol
Min
Typ Max
Units
OUTPUT
TJ = 25 °C
ID = 25mA
28
42
32
48
ON-State
Resistance
RDS(ON)
Ω
TJ = 100 °C
OFF-State
Current
See Note B, VC = 6.2 V
VD = 560 V, TA = 125°C
IDSS
µA
50
See Note B
VC = 6.2 V, TA = 25°C
Breakdown
Voltage
700
36
V
V
BVDSS
DRAIN Supply
Voltage
50
See Note E
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. Breakdown voltage may be checked against minimum BVDSS specification by ramping the DRAIN pin voltage up to but not
exceeding minimum BVDSS
.
C. 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.
D. This parameter is normalized to IDCT to correlate to power supply output current (it is multiplied by IDCT(nominal)/IDCT).
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 13) for low voltage operation characteristics.
F
9/02
13
POWERINT [ Power Integrations ]
