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USR1101L-S08-R Datasheet(PDF) 4 Page - Unisonic Technologies

Part # USR1101L-S08-R
Description  5V/12V SYNCHRONOUS BUCK PWM DC-DC CONTROLLER
PDF  6 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

USR1101L-S08-R Datasheet(HTML) 4 Page - Unisonic Technologies

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USR1101
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 6
www.unisonic.com.tw
QW-R103-062.a
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
16
V
Power Dissipation (TA=25°C) (Note 1)
PD
0.625
W
Storage Temperature
TSTG
-65~150
°C
Junction Temperature
TJ
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.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
Junction to Ambient
θJA
160
°С/W
RECOMMENDED OPERATING CONDITIONS (Note 2)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
5±5%,12±10%
V
Ambient Temperature
TA
0~70
°C
Junction Temperature
TJ
0~125
°C
Notes: 1. θJA is measured in the natural convection at TA=25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
2. The device is not guaranteed to function outside its operating conditions.
ELECTRICAL CHARACTERISTICS (VCC=5V/12V, TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
VCC Supply Current
Nominal Supply Current
ICC
UGATE and LGATE Open
6
15
mA
Power-On Reset
POR Threshold
VCCRTH
VCC Rising
4.1
4.5
V
Hysteresis
VCCHYS
0.35
0.5
V
Switcher Reference
Reference Voltage
VREF
VCC=12V
0.784
0.8
0.816
V
Oscillator
Free Running Frequency
fOSC
VCC=12V
250
300
350
kHz
Ramp Amplitude
ΔVOSC
VCC=12V
1.5
VP-P
PWM Controller Gate Drivers (VCC=12V)
Dead Time
TDT
100
ns
Protection
FB Under-Voltage Trip
ΔFBUVT
FB Falling
70
75
80
%
OC Current Source
IOC
40
45
μA
Soft-Start Interval
TSS
2.5
ms



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