参数资料
型号: ISL6227CA
厂商: INTERSIL CORP
元件分类: 稳压器
英文描述: Dual Mobile-Friendly PWM Controller with DDR Option
中文描述: DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO28
封装: 0.150 INCH, PLASTIC, SSOP-28
文件页数: 22/27页
文件大小: 834K
代理商: ISL6227CA
4
FN9094.7
May 4, 2009
Soft-Start Current During Start-Up
ISOFT
--4.5-
A
Soft-Start Complete Threshold
VST
(Note 5)
-
1.5
-
V
PWM CONVERTERS
Load Regulation
0.0mA < IVOUT1 < 5.0A; 5.0V < VBATT < 28.0V
-2.0
-
+2.0
%
VSEN Pin Bias Current
IVSEN
(Note 5)
-
80
-
nA
Minimum Duty Cycle
Dmin
-4-
%
Maximum Duty Cycle
Dmax
-87-
%
VOUT Pin Input Impedance
IVOUT
VOUT = 5V
-
134
-
k
Ω
Undervoltage Shut-Down Level
VUVL
Fraction of the set point; ~2s noise filter
70
75
80
%
Overvoltage Protection
VOVP1
Fraction of the set point; ~2s noise filter
110
115
-
%
GATE DRIVERS
Upper Drive Pull-Up Resistance
R2UGPUP
VCC = 5V
-
4
8
Ω
Upper Drive Pull-Down Resistance
R2UGPDN VCC = 5V
-
2.3
4
Ω
Lower Drive Pull-Up Resistance
R2LGPUP
VCC = 5V
-
4
8
Ω
Lower Drive Pull-Down Resistance
R2LGPDN
VCC = 5V
-
1.1
3
Ω
POWER GOOD AND CONTROL FUNCTIONS
Power Good Lower Threshold
VPG-
Fraction of the set point; ~3s noise filter
84
89
92
%
Power Good Higher Threshold
VPG+
Fraction of the set point; ~3s noise filter.
110
115
120
%
PGOODx Leakage Current
IPGLKG
VPULLUP = 5.5V
-
1
A
PGOODx Voltage Low
VPGOOD
IPGOOD = -4mA
-
0.5
1
V
ISEN Sourcing Current
(Note 5)
-
260
A
OCSET Sourcing Current Range
2-
20
A
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
VDDREF
DDR = 1, IREF = 0...10mA
0.99*
VOC2
1.01*
VOC2
V
DDR REF Output Current
IDDREF
DDR = 1 (Note 5)
-
10
12
mA
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
ISL6227
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