参数资料
型号: ISL6227IRZ
厂商: Intersil
文件页数: 4/27页
文件大小: 0K
描述: IC CONTROLLER DDR, DDR2 28QFN
标准包装: 60
应用: 控制器,DDR,DDR2
输入电压: 5 V ~ 28 V
输出数: 2
输出电压: 0.9 V ~ 5.5 V
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 28-VFQFN 裸露焊盘
供应商设备封装: 28-QFN 裸露焊盘(5x5)
包装: 管件
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
Soft-Start Current During Start-Up
Soft-Start Complete Threshold
SYMBOL
I SOFT
V ST
(Note 5)
TEST CONDITIONS
MIN
-
-
TYP
-4.5
1.5
MAX
-
-
UNITS
μA
V
PWM CONVERTERS
Load Regulation
0.0mA < I VOUT1 < 5.0A; 5.0V < V BATT < 28.0V
-2.0
-
+2.0
%
VSEN Pin Bias Current
Minimum Duty Cycle
Maximum Duty Cycle
VOUT Pin Input Impedance
Undervoltage Shut-Down Level
Overvoltage Protection
I VSEN
D min
D max
I VOUT
V UVL
V OVP1
(Note 5)
VOUT = 5V
Fraction of the set point; ~2μs noise filter
Fraction of the set point; ~2μs noise filter
-
-
-
-
70
110
80
4
87
134
75
115
-
-
-
-
80
-
nA
%
%
k Ω
%
%
GATE DRIVERS
Upper Drive Pull-Up Resistance
Upper Drive Pull-Down Resistance
Lower Drive Pull-Up Resistance
Lower Drive Pull-Down Resistance
R 2UGPUP
R 2UGPDN
R 2LGPUP
R 2LGPDN
V CC = 5V
V CC = 5V
V CC = 5V
V CC = 5V
-
-
-
-
4
2.3
4
1.1
8
4
8
3
Ω
Ω
Ω
Ω
POWER GOOD AND CONTROL FUNCTIONS
Power Good Lower Threshold
Power Good Higher Threshold
PGOODx Leakage Current
PGOODx Voltage Low
ISEN Sourcing Current
OCSET Sourcing Current Range
EN - Low (Off)
EN - High (On)
Continuous-Conduction-Mode(CCM)
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)
VOUTX pulled low
84
110
-
-
-
2
-
2.0
-
89
115
-
0.5
-
-
-
-
-
92
120
1
1
260
20
0.8
-
0.1
%
%
μA
V
μA
μA
V
V
V
Enforced (HYS Operation Inhibited)
Automatic CCM/HYS Operation
VOUTX connected to the output
0.9
-
-
V
Enabled
DDR - Low (Off)
DDR - High (On)
-
3
-
-
0.8
-
V
V
DDR REF Output Voltage
V DDREF
DDR = 1, I REF = 0...10mA
0.99*
V OC2
1.01*
V
V OC2
V OC2
DDR REF Output Current
I DDREF
DDR = 1 (Note 5)
-
10
12
mA
4
FN9094.7
May 4, 2009
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