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6225CA Просмотр технического описания (PDF) - Unspecified

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6225CA Dual Mobile-Friendly PWM Controller with DDR Memory Option ETC
Unspecified 
6225CA Datasheet PDF : 19 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ISL6225
Absolute Maximum Ratings
Bias Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+ 6.5V
Input Voltage, VIN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +27.0V
PHASE, UGATE Voltage . . . . . . . . . . . . . . GND-5V (Note 3) to 33V
BOOT, ISEN Voltage . . . . . . . . . . . . . . . . . . . . GND-0.3V to +33.0V
BOOT with respect to PHASE . . . . . . . . . . . . . . . . . . . . . . . . .+ 6.5V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to VCC + 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Thermal Information
Thermal Resistance (Typical, Note 4)
θJA (°C/W)
SSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .
78
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)
Recommended Operating Conditions
Bias Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.0V ±5%
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.0V to +24.0V
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . .-10°C to 85°C
Junction Temperature Range. . . . . . . . . . . . . . . . . . .-10°C to 125°C
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:
3. 200ns transient.
4. θJA 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
VCC SUPPLY
Bias Current
ICC
LGATEx, UGATEx Open, VSENx forced above -
regulation point, DDR = 0, VIN > 5V
Shut-down Current
ICCSN
-
VCC UVLO
Rising VCC Threshold
VCCU
4.3
Falling VCC Threshold
VCCD
4.1
VIN
Input Voltage Pin Current (Sink)
IVIN
10
Input Voltage Pin Current (Source)
IVINO
-
Shut-down Current
IVINS
-
OSCILLATOR
PWM1 Oscillator Frequency
FC
255
Ramp Amplitude, pk-pk
VR1
VIN = 16V, by design
-
Ramp Amplitude, pk-pk
VR2
VIN = 5V, by design
-
Ramp Offset
VROFF By design
-
Ramp/VIN Gain
GRB1
VIN 3V, by design
-
Ramp/VIN Gain
GRB2
1 VIN 3V, by design
-
REFERENCE AND SOFT-START
Internal Reference Voltage
VREF
-
Reference Voltage Accuracy
-1.0
Soft-Start Current During Start-up
ISOFT
-
Soft-Start Complete Threshold
VST
By design
-
TYP MAX UNITS
2.2 3.2
mA
-
30
µA
4.65 4.75
V
4.35 4.45
V
-
30
µA
-15 -30
µA
-
1
µA
300 345
2
-
1.25 -
0.5
-
125
-
250
-
kHz
V
V
V
mV/V
mV/V
0.9
-
V
- +1.0
%
-5
-
µA
1.5
-
V
3
FN9049.7
December 28, 2004
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