參數(shù)資料
型號(hào)： ISL6539IAZ-T
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： Wide Input Range Dual PWM Controller with DDR Option
中文描述： DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO28
封裝： ROHS COMPLIANT, PLASTIC, QSOP-28
文件頁數(shù)： 4/20頁
文件大小： 503K
代理商： ISL6539IAZ-T
4
FN9144.4
June 6, 2005
BOOT
Absolute Maximum Ratings
Bias Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6.5V
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18.0V
PHASE, UGATE . . . . . . . . . . . . . . . . . . .GND-5V (Note 1) to +24.0V
BOOT, ISEN . . . . . . . . . . . . . . . . . . . . . . . . . . . GND-0.3V to +24.0V
BOOT with respect to PHASE . . . . . . . . . . . . . . . . . . . . . . . . . + 6.5V
All Other Pins. . . . . . . . . . . . . . . . . . . . . . GND -0.3V to V
CC
+ 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Recommended Operating Conditions
Bias Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+5.0V
±
5%
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . +3.3V or 5.0V to +18.0V
Ambient Temperature Range, Commercial . . . . . . . . . . 0°C to 70°C
Junction Temperature Range, Commercial . . . . . . . . . 0°C to 125°C
Ambient Temperature Range, Industrial. . . . . . . . . . . .-40°C to 85°C
Junction Temperature Range, Industrial . . . . . . . . . .-40°C to 125°C
Thermal Information
Thermal Resistance (Typical, Note 2)
SSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature (Plastic Package). . . . . . . . .150°C
Maximum Storage Temperature Range. . . . . . . . . . .-65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300°C
(SSOP - Lead Tips Only)
θ
JA
(°C/W)
80
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. 250ns transient. See Confining The Negative Phase Node Voltage Swing in Application Information Section.
2.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Noted.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
VCC SUPPLY
Bias Current
I
CC
LGATEx, UGATEx Open, VSENx forced above
regulation point, DDR = 0, VIN > 5V
-
1.8
3.0
mA
Shut-down Current
I
CCSN
-
-
1
μ
A
VCC UVLO
Rising VCC Threshold
V
CCU
4.30
4.45
4.50
V
Falling VCC Threshold
V
CCD
4.00
4.14
4.34
V
VIN
Input Voltage Pin Current (Sink)
I
VIN
-
-
35
μ
A
Shut-down Current
I
VINS
-
-
1
μ
A
OSCILLATOR
Oscillator Frequency
f
OSC
255
300
345
kHz
Ramp Amplitude, pk-pk
V
R1
Vin pin voltage = 16V, by design
-
2
-
V
Ramp Amplitude, pk-pk
V
R2
Vin pin voltage = 5V, by design
-
0.625
-
V
Ramp Offset
V
ROFF
By design
-
1
-
V
Ramp/V
IN
Gain
G
RB1
Vin pin voltage > 4.2V, by design
-
125
-
mV/V
Ramp/V
IN
Gain
G
RB2
Vin pin voltage
≤
4.1V, by design
-
250
-
mV/V
REFERENCE AND SOFT-START
Internal Reference Voltage
V
REF
-
0.9
-
V
Reference Voltage Accuracy
-1.0
-
+1.0
%
Soft-Start Current During Start-up
I
SOFT
-
4.5
-
μ
A
Soft-Start Complete Threshold
V
ST
By design
-
1.5
-
V
ISL6539
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