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TEA5170 Scheda tecnica(PDF) 2 Page - STMicroelectronics

Il numero della parte TEA5170
Spiegazioni elettronici  SWITCH MODE POWER SUPPLY SECONDARY CIRCUIT
PDF  9 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TEA5170 Scheda tecnica(HTML) 2 Page - STMicroelectronics

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VMonitor
CC
Error Amplifier
2V
2.7V
LOGIC
(SYNCHRO)
OSCILLATOR
LOGIC
POWER OUTPUT
STAGE
SOFT START AND
DUTY CYCLE LIMITING
PWM
PWM
x -1
8
7
1
5
642
3
Comparator
Rt
Ct
Csf
E-
Eout
GND
V
CC
P
out
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
15
V
Tj
Operating Junction Temperature
150
°C
Tstg
Storage Temperature Range
– 40, + 150
°C
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth (j-a)
Junction-ambient Thermal Resistance
90
°C/W
RECOMMANDED OPERATING CONDITIONS
Symbol
Parameter
Min.
Typ.
Max.
Unit
VCC
Power Supply Voltage
5
14
V
RT
Timing Resistor
47
180
k
Ω
CT
Timing Capacitor
0.12
1.8
nF
Fosc
Oscillator Frequency
12
250
kHz
Fsy
Synchro Frequency
12
64
kHz
Tamb
Operating Ambient Temperature
– 20
70
°C
VRT
Voltage on Pin RT (8)
7
Volt
VCT
Current on Pin CT (1)
100
µA
ISOURCE
Output Current
30
60
mA
TEA5170
2/9



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