LNK3202/3204-6
Notes:
A. Total current consumption is the sum of IS1 and IDSS when FEEDBACK pin voltage is = 2.1 V (MOSFET not switching) and the sum of IS2 and
IDSS when FEEDBACK pin is shorted to SOURCE (MOSFET switching).
B. Since the output MOSFET is switching, it is difficult to isolate the switching current from the supply current at the DRAIN. An alternative is
to measure the BYPASS pin current at 5.1 V.
C. This current is only intended to supply an optional optocoupler connected between the BYPASS and FEEDBACK pins and not any other
external circuitry.
D. For current limit at other di/dt values, refer to Figures 21 and 22.
E. This parameter is guaranteed by design.
F. This parameter is derived from characterization.
G. Auto-restart on time has the same temperature characteristics as the oscillator (inversely proportional to frequency).
H. The BP/M capacitor value tolerance should be equal or better than indicated below across the ambient temperature range of the target
application.
I. Measured using circuit in Figure 12 with 50 Ω drain pull-up. The width of the drain pulse is measured as the time from VFALL = 42 V to
VRISE = 40 V (VDR = 50 V), for LNK3206/05/04 and as the time from VFALL = 32 V to VRISE = 30 V on rising edge (VDR = 35 V), for LNK3202.
Tolerance Relative to
Minimal Capacitor Value
Nominal BP/M Pin
Capacitor Value
Min
Max
0.1 μF
1 μF
-60%
-50%
+100%
+100%
14
Rev. F 01/17
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