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UC1846-EP датащи(PDF) 4 Page - Texas Instruments

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номер детали UC1846-EP
подробное описание детали  CURRENT-MODE PWM CONTROLLER
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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Electrical Characteristics
UC1846-EP
CURRENT-MODE PWM CONTROLLER
SGLS329 – MAY 2006
T
A = –55°C to 125°C, VIN = 15 V, RT = 10 k, CT = 4.7 nF, TA = TJ (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Reference
Output voltage
TJ = 25°C, IO = 1 mA
5.05
5.1
5.15
V
Line regulation
VIN = 8 V to 40 V
5
20
mV
Load regulation
IL = 1 mA to 10 mA
3
15
mV
Temperature stability
Over operating range(1)
0.4
mV/
°C
Total output variation
Line, load, and temperature(1)
5
5.2
V
Output noise voltage
10 Hz
≤ f ≤ 10 kHz, T
J = 25°C
(1)
100
µV
Long-term stability
TJ = 125°C, 1000 h
5
mV
Short-circuit output current
VREF = 0 V
–10
–45
mA
Oscillator
Initial accuracy
TJ = 25°C
39
43
47
kHz
Voltage stability
VIN = 8 V to 40 V
–1
2
%
Temperature stability
Over operating range(1)
–1
%
Sync output high level
3.9
4.35
V
Sync output low level
2.3
2.5
V
Sync input high level
Pin 8 = 0 V
3.9
V
Sync input low level
Pin 8 = 0 V
2.5
V
Sync input current
Sync voltage = 3.9 V, Pin 8 = 0 V
1.3
1.5
mA
Error Amplifier
Input offset voltage
0.5
5
mV
Input bias current
–0.6
–1
µA
Input offset current
40
250
nA
Common-mode range
VIN = 8 V to 40 V
0
VIN – 2
V
Open-loop voltage gain
∆V
O = 1.2 V to 3 V, VCM = 2 V
80
105
dB
Unity gain bandwidth
TJ = 25°C(1)
0.7
1
MHz
CMRR
VCM = 0 V to 38 V, VIN = 40 V
75
100
dB
PSRR
VIN = 8 V to 40 V
80
105
dB
Output sink current
VID = –15 mV to –5 V, VPIN7 = 1.2 V
2
6
mA
Output source current
VID = 15 mV to 5 V, VPIN7 = 2.5 V
–0.4
–0.5
mA
High-level output voltage
RL = 15 kΩ (pin 7)
4.3
4.6
V
Low-level output voltage
RL = 15 kΩ (pin 7)
0.7
1
V
(1)
These parameters, although specified over the recommended operating conditions, are not 100% tested in production.
4
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