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UPS3702 Datasheet(PDF) 3 Page - Unisonic Technologies

Part No. UPS3702
Description  HIGH PERFORMANCE CURRENT MODE POWER SWITCH WITH ZERO CURRENT DETECTION
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Maker  UTC [Unisonic Technologies]
Homepage  http://www.utc-ic.com
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UPS3702 Datasheet(HTML) 3 Page - Unisonic Technologies

   
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UPS3702
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
3 of 9
www.unisonic.com.tw
QW-R119-022.b
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
30
V
Input Voltage to FB Pin
VFB
-0.3~6.5
V
Junction Temperature
TJ
+150
°C
Operating Temperature
TOPR
-40~+125
°C
Storage Temperature
TSTG
-50~+150
°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
Supply Voltage
VCC
7~23
V
ELECTRICAL CHARACTERISTICS (TA=25°C, VCC=15V, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY SECTION
Start Up Current
IST
VCC = VTHD(ON)-1V
5
15
μA
Supply Current with switch
IOP
VFB=4V GATE Without
CLOAD
2
3
mA
UNDER-VOLTAGE LOCKOUT SECTION
Start Threshold Voltage
VTHD(ON)
12
13.5
14
V
Min. Operating Voltage
VCC(MIN)
7
8
9
V
CONTROL SECTION
Feedback Source Current
IFB
VFB=0
2
mA
VFB Open Level
VFBMAX
5.0
V
Burst-Mode Out FB Voltage
VFB(OUT) VCS =0
1.2
V
Reduce-Frequency end FB Voltage
VFB(END) VCS =0
2.4
V
Burst-Mode Enter FB Voltage
VFB(IN)
VCS =0
1.0
V
Switching
frequency
Normal initial
F(SW)
VFB=4V
69
75
81
kHz
Power-Saving
Before enter burst mode
20
kHz
Duty Cycle
DMAX
VFB=4V,vCS=0
70
75
80
%
Frequency Hopping
FJ(SW)
±3
±4.5
±6
%
Frequency Variation VS VCC Deviation
FDV
VCC=10~20V
5
%
Frequency
Variation
VS
Temperature
Deviation
FDT
T=-25~105°C
5
%
Soft-Start Time
TSoftS
2
4
6
ms
PROTECTION SECTION
OVP threshold
VOVP
VFB=4V
23
V
OLP threshold
VFB(OLP)
VCS=0
4.7
V
Delay Time Of OLP
TD-OLP
35
65
95
ms
OTP threshold
T(THR)
130
145
°C
CURRENT LIMITING SECTION
Peak Current Limitation
ILIM
VFB=4.4V
1.06
1.2
1.34
A
Threshold Voltage For Valley
ILIM-L
VFB=4.4V
1.14
A


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