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UC4601G-AF5-R 数据表(PDF) 3 Page - Unisonic Technologies

部件名 UC4601G-AF5-R
功能描述  PWM STEP-DOWN DC-DC
PDF  4 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  UTC [Unisonic Technologies]
网页  http://www.utc-ic.com
标志 UTC - Unisonic Technologies

UC4601G-AF5-R 数据表(HTML) 3 Page - Unisonic Technologies

  UC4601G-AF5-R Datasheet HTML 1Page - Unisonic Technologies UC4601G-AF5-R Datasheet HTML 2Page - Unisonic Technologies UC4601G-AF5-R Datasheet HTML 3Page - Unisonic Technologies UC4601G-AF5-R Datasheet HTML 4Page - Unisonic Technologies  
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UC4601
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 4
www.unisonic.com.tw
QW-R502-494.c
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
VIN Supply Voltage
VIN
20
V
Ext Pin Output Voltage
VEXT
-0.3 ~ VIN+0.3
V
CE Pin Input Voltage
VCE
-0.3 ~ VIN+0.3
V
VOUT/VFB Pin Input Voltage
VOUT/VFB
-0.3 ~ 6
V
Ext Pin Output Current
IEXT
±50
mA
Power Dissipation
PD
+250
mW
Operating Temperature
TOPR
-40 ~ +85
°C
Storage Temperature
TSTG
-55 ~ +125
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
OPERATING RANGE
PARAMETER
SYMBOL
RATINGS
UNIT
VIN Supply Voltage
VIN
2.5 ~ 18
V
Ext Pin Output Voltage
VEXT
-0.3 ~ VIN+0.3
V
CE Pin Input Voltage
VCE
-0.3 ~ VIN+0.3
V
VOUT/VFB Pin Input Voltage
VOUT/VFB
-0.3 ~ 5.5
V
Ext Pin Output Current
IEXT
±50
mA
ELECTRICAL CHARACTERISTICS (TOPR=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ADJUSTABLE OUTPUT VOLTAGE TYPE
Operating Voltage
VIN
2.3
18
V
Feedback Voltage
VFB
VIN=VCE=8V, ILOAD =350mA
0.98
1.00
1.02
V
Feedback Voltage Temperature
coefficient
ΔVFB/ΔT -40°C <TOPR<85°C
±100
ppm/°C
Supply Current
IQ1
VIN=VCE=18V, VFB=2V
40
80
μA
Shutdown Current
IQ2
VIN=18V, VCE=VFB=0V
0.1
1
μA
Oscillator Frequency
fOSC
VIN=VCE=8V, ILOAD =350mA
400
500
600
kHZ
Maximum Duty Cycle
DMAX
100
%
Minimum Duty Cycle
DMIN
0
%
EXT “H” Output Current
IEXTH
VIN=VCE=8V, VEXT=7.9V, VFB=3V
-17
-10
mA
EXT “L” Output Current
IEXTL
VIN=VCE=8V, VEXT=0.1V, VFB=0V
20
30
mA
CE “H” Output Current
ICEH
VIN=VCE=VOUT=18V
0
0.5
μA
CE “L” Output Current
ICEL
VIN=VOUT=18V, VCE=0V
-0.3
0
μA
CE “H” Input Voltage
VCEH
VIN=8V, VFB=0V
1.8
V
CE “L” Input Voltage
VCEL
VIN=8V, VFB=0V
0.3
V
UVLO Voltage
VUVLO1 VIN=VCE=2.5V≥1.5V, VFB=0V
1.75
2.0
2.25
V
UVLO Release Voltage
VUVLO2 VIN=VCE=1.5V≥2.5V, VFB=0V
VUVLO1
+0.1
2.4
V
Delay Time by Soft-Start
TSST
VIN=8V, ILOAD =10mA, VCE=0V≥2.5V
5
10
20
ms
Delay Time by Protection
TPROT
VIN=VCE=2.5V, VFB=2.5V≥0V
5
15
30
ms



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