ISL6123 Intersil Corporation, ISL6123 Datasheet - Page 5

• Manufacturer Part Number: ISL6123
• Description: Power Sequencing Controllers
• Manufacturer: Intersil Corporation

NOTE: Nom. T
DLY PIN CAPACITANCE
ENABLE# (ISL6124)
ENABLE (ISL6123)
NOMINAL DELAY TO SEQUENCING THRESHOLD
1000pF
0.01µF
100pF
0.1µF
Open
10µF
DLYON_B
DLYON_D
DLYON_A
DLYON_C
1µF
DEL_SEQ
UVLO_A
UVLO_B
UVLO_C
UVLO_D
GATE_B
GATE_D
GATE_C
GATE_A
RESET#
= Cap (µF) * 1.3MΩ.
FIGURE 2. ISL6123/ISL6124 TURN-ON AND GLITCH RESPONSE TIMING DIAGRAM
TABLE 1.
5
V
UVLOVth
V
V
UVLOVth
V
UVLOVth
TIME (s)
0.00006
0.00013
UVLOVth
0.0013
0.013
0.13
1.3
13
ISL6123, ISL6124, ISL6125
T
UVLOdel
V
EN
DLY_Vth
DLY_Vth
Figure 2 illustrates the turn-on and Figure 3 the nominal turnoff
timing diagram of the ISL6123 and ISL6124 product.
The ISL6125 is similar except the open drains instead of GATE
pins are pulled up to V
Note the delay and flexible sequencing possibilities.
DLY_Vth
DLY_Vth
V
QPUMP
T
RSTdel
-1V
DD
.
< TFIL
V
V
V
V
QPUMP
QPUMP
QPUMP
QPUMP