FC6261 datasheet(5/11 Pages) FS

5 / 11 page

ELECTRICAL CHARACTERISTICS (con�nued)

(VIN=5V, CIN=1μF, COUT=1μF, TA = 25°C.)

Symbol

Parameter

Condi�ons

Min

Typ

Max

Unit

FLG(Fault ﬂag) sec�on

VOL

Output low voltage

IFLG=1mA

180

IFLG

Con�nuous FLG sink

IFLG_LEAK

Oﬀ-state leakage

μA

TFLG

Fault ﬂag deglitch

�me

IOUT= 0A to 2A, over current

condi�on

VOUT-VIN>100mV, reverse

blocking protec�on

2.5

Power switch

RDS_ON

IOUT=0.5A(FC6261A)

IOUT=1A(FC6261B/C/B1)

mΩ

Thermal Shutdown

TNORMAL

Thermal shutdown

temperature

150

°C

TNORMAL_HY

Thermal shutdown

threshold hysteresis

°C

Note 1: Absolute Maximum Ra�ngs are those values beyond which the life of a device may be impaired.

Note 2: TJ is calculated from the ambient temperature TA and power dissipa�on PD according to the

following formula: TJ = TA + PD x θJA.

Figure 2. Short Circuits Response �me

Figure 3. test circuits

Note:

To exactly iden�fy the short circuit characteris�c of IC, avoid the test result interfered by parasi�c inductor,

output capacitor, and contact resistor. It is necessary to follow the recommenda�on as follows.

1. Add 1000μF of capacitor between VIN and GND, and close to IC.

2. Remove output capacitor.

3. Shorter the short circuit device wire.

4. Measure output current (IOUT).

FC6261

2021. 01. 11

5/11

Revision No : 0

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