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UC2577T-ADJ датащи(PDF) 2 Page - Texas Instruments

номер детали UC2577T-ADJ
подробное описание детали  Simple Step-Up Voltage Regulator
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

UC2577T-ADJ датащи(HTML) 2 Page - Texas Instruments

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PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
System Parameters
Circuit Figure 1 (Note 3)
Output Voltage
VIN = 5V to 10V, ILOAD = 100mA to 800mA
11.40
12.0
12.60
V
TJ = 25
°C
11.60
12.40
V
Line Regulation
VIN = 3.0V to 10V, ILOAD = 300mA
20
100
mV
TJ = 25
°C50
mV
Load Regulation
VIN = 5V, ILOAD = 100mA to 800mA
20
100
mV
TJ = 25
°C50
mV
Efficiency
VIN = 5V, ILOAD = 800mA
80
%
Device Parameters
Input Supply Current
VFB = 1.5V (Switch Off)
7.5
14
mA
TJ = 25
°C10
mA
ISWITCH = 2.0A, VCOMP = 2.0V (Max Duty Cycle)
45
85
mA
TJ = 25
°C70
mA
Input Supply UVLO
ISWITCH = 100mA
2.70
2.95
V
TJ = 25
°C2.85
V
Oscillator Frequency
Measured at SWITCH Pin, ISWITCH = 100mA
42
52
62
kHz
TJ = 25
°C48
56
kHz
Reference Voltage
Measured at FB Pin, VIN = 3.0V to 40V, VCOMP = 1.0V
1.206
1.230
1.254
V
TJ = 25
°C
1.214
1.246
V
Reference Voltage Line Regulation
VIN = 3.0V to 40V
0.5
mV
Error Amp Input Bias Current
VCOMP = 1.0V
100
800
nA
TJ = 25
°C
300
nA
Error Amp Transconductance
ICOMP =
−30µA to +30µA, VCOMP = 1.0V
1600
3700
5800
µmho
TJ = 25
°C
2400
4800
µmho
Error Amp Voltage Gain
VCOMP = 0.8V to 1.6V, RCOMP = 1.0MW (Note 4)
250
800
V/V
TJ = 25
°C
500
V/V
Error Amplifier Output Swing
Upper Limit VFB = 1.0V
2.0
2.4
V
TJ = 25
°C2.2
V
Lower Limit VFB = 1.5V
0.3
0.55
V
TJ = 25
°C0.40
V
Error Amp Output Current
VFB = 1.0V to 1.5V, VCOMP = 1.0V
±90
±200
±400
µA
TJ = 25
°C
±130
±300
µA
Soft Start Current
VFB = 1.0V, VCOMP = 0.5V
1.5
5.0
9.5
µA
TJ = 25
°C2.5
7.5
µA
Maximum Duty Cycle
VCOMP = 1.5V, ISWITCH = 100mA
90
95
%
TJ = 25
°C93
%
Unless otherwise stated, these specifications apply for TA =
−40°C to +125°C, VIN =
5V, VFB = VREF, ISWITCH = 0, and TA =TJ.
ELECTRICAL CHARACTERISTICS
RECOMMENDED OPERATING RANGE
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45V
Output Switch Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65V
Output Switch Current (Note 2) . . . . . . . . . . . . . . . . . . . . . 6.0A
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Storage Temperature Range . . . . . . . . . . . . .
−65°C to +150°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . . 260
°C
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . 150
°C
Minimum ESD Rating (C = 100pF, R = 15k
Ω) . . . . . . . . . . . 2kV
ABSOLUTE MAXIMUM RATINGS (Note 1)
UC2577-ADJ
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . 3.0V
≤ VIN ≤ 40V
Output Switch Voltage . . . . . . . . . . . . . . . 0V
≤ VSWITCH ≤ 60V
Output Switch Current . . . . . . . . . . . . . . . . . . . . ISWITCH
≤ 3.0A
Junction Temperature Range . . . . . . . . . .
−40°C ≤ TJ ≤ +125°C
2


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