ISL6227 Datasheet, PDF (4/27 Pages) Intersil Corporation – Dual Mobile-Friendly PWM Controller with DDR Option

ISL6227
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Noted. Parameters with MIN and/or MAX limits are
100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are
not production tested. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNITS
Soft-Start Current During Start-Up
Soft-Start Complete Threshold
PWM CONVERTERS
I_SOFT
V_ST
(Note 5)
-
-4.5
-
µA
-
1.5
-
V
Load Regulation
VSEN Pin Bias Current
Minimum Duty Cycle
Maximum Duty Cycle
VOUT Pin Input Impedance
Undervoltage Shut-Down Level
Overvoltage Protection
GATE DRIVERS
0.0mA < I_VOUT1 < 5.0A; 5.0V < V_BATT < 28.0V
-2.0
-
+2.0
%
I_VSEN (Note 5)
-
80
-
nA
D_min
-
4
-
%
D_max
-
87
-
%
I_VOUT VOUT = 5V
-
134
-
kΩ
V_UVL Fraction of the set point; ~2µs noise filter
70
75
80
%
V_OVP1 Fraction of the set point; ~2µs noise filter
110
115
-
%
Upper Drive Pull-Up Resistance
R_2UGPUP V_CC = 5V
Upper Drive Pull-Down Resistance
R_2UGPDN V_CC = 5V
Lower Drive Pull-Up Resistance
R_2LGPUP V_CC = 5V
Lower Drive Pull-Down Resistance
R_2LGPDN V_CC = 5V
POWER GOOD AND CONTROL FUNCTIONS
-
4
8
Ω
-
2.3
4
Ω
-
4
8
Ω
-
1.1
3
Ω
Power Good Lower Threshold
Power Good Higher Threshold
PGOODx Leakage Current
PGOODx Voltage Low
ISEN Sourcing Current
V_PG-
V_PG+
I_PGLKG
V_PGOOD
Fraction of the set point; ~3µs noise filter
Fraction of the set point; ~3µs noise filter.
V_PULLUP = 5.5V
I_PGOOD = -4mA
(Note 5)
84
89
92
%
110
115
120
%
-
-
1
µA
-
0.5
1
V
-
-
260
µA
OCSET Sourcing Current Range
2
-
20
µA
EN - Low (Off)
-
-
0.8
V
EN - High (On)
2.0
-
-
V
Continuous-Conduction-Mode(CCM)
Enforced (HYS Operation Inhibited)
VOUTX pulled low
-
-
0.1
V
Automatic CCM/HYS Operation
Enabled
VOUTX connected to the output
0.9
-
-
V
DDR - Low (Off)
-
-
0.8
V
DDR - High (On)
3
-
-
V
DDR REF Output Voltage
DDR REF Output Current
V_DDREF DDR = 1, I_REF = 0...10mA
I_DDREF DDR = 1 (Note 5)
0.99* V_OC2 1.01*
V
V_OC2
V_OC2
-
10
12
mA
4
FN9094.7
May 4, 2009