ISL6440A Datasheet, PDF (5/16 Pages) Intersil Corporation – Advanced PWM and Triple Linear Power Controller for Gateway Applications

ISL6440A
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Noted. Refer to Block and Simplified Power System
Diagrams, and Typical Application Schematic (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
DC Gain
-
88
-
dB
Gain-Bandwidth Product
GBWP
-
15
-
MHz
Slew Rate
SR
COMP = 10pF
-
6
-
V/µs
PWM CONTROLLER GATE DRIVER
UGATE Source
UGATE Sink
LGATE Source
LGATE Sink
PROTECTION
I_UGATE
R_UGATE
I_LGATE
R_LGATE
VCC = 12V, V_UGATE = 6V
V_GATE-PHASE = 1V
VCC = 12V, V_LGATE = 1V
V_LGATE = 1V
-
1
-
A
-
1.7 3.5
Ω
-
1
-
A
-
1.4 3.0
Ω
VSEN1 Overvoltage (VSEN1/DACOUT)
VSEN1 Rising
-
115 120
%
FAULT Sourcing Current
OCSET1 Current Source
Soft-Start Current
POWER GOOD
I_OVP
I_OCSET
I_SS
V_FAULT/RT = 2.0V
V_OCSET = 4.5V_DC
-
8.5
-
mA
170 200 230
µA
-
28
-
µA
VSEN1 Upper Threshold
(VSEN1/DACOUT)
VSEN1 Rising
108
-
110
%
VSEN1 Undervoltage
(VSEN1/DACOUT)
VSEN1 Rising
92
-
94
%
VSEN1 Hysteresis (VSEN1/DACOUT)
Upper/Lower Threshold
-
2
-
%
PGOOD Voltage Low
V_PGOOD I_PGOOD = -4mA
-
-
0.8
V
Typical Performance Curve
1000
100
R_T PULLUP
TO +12V
10
R_T PULLDOWN TO V_SS
10
100
SWITCHING FREQUENCY (kHz)
FIGURE 1. R_T RESISTANCE vs FREQUENCY
1000
5