ISL6146AFUZ-TK Datasheet, PDF (14/28 Pages) Intersil Corporation – Low Voltage OR-ing FET Controller

ISL6146
Typical Performance Curves (Continued)
GGAATTEE
V^VI^IN^N
V^VO^OUU^T T
VIN RISING TO <2.5V WHEN
GATE BECOMES ACTIVE
GATE
VIN
FIGURE 33. BACK-TO-BACK FET TURN_ON DETAIL
GATE FAST OFF, ~200ns FALL TIME
~70ns FROM 20V TO 12.6V ACROSS 57nF
GATE OUTPUT SINKING ~ 6A
FIGURE 34. ISL6146 RISING POR Vth
VOUT
HIGH SPEED COMPARATOR Vth = V_OS(HS)
GATE1
VIN1 SHORTED
TO GND
GATE2
FIGURE 35. FAST GATE TURN-OFF WITH 57nF GATE
VOUT
GATE1
HIGH SPEED COMPARATOR Vth = 800mV
VIN1 SHORTED
TO GND
GATE2
FIGURE 36. RESPONSE TO V_IN SHORTED TO GND WITH ADJ
SHORTED TO V_OUT
VOUT
GATE1
HIGH SPEED COMPARATOR Vth = 40mV
VIN1 SHORTED
TO GND
GATE2
FIGURE 37. RESPONSE TO V_IN SHORTED TO GND WITH
ADJ 5kΩ TO GND
14
FIGURE 38. RESPONSE TO V_IN SHORTED TO GND WITH
ADJ 100kΩ TO GND
FN7667.4
April 26, 2013