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LC554XLD Fiches technique(PDF) 3 Page - Sanken electric

No de pièce LC554XLD
Description  Single-Stage Power Factor Corrected Off-Line Switching Regulator ICs
PDF  11 Pages
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Fabricant  SANKEN [Sanken electric]
Site Internet  http://www.sanken-ele.co.jp/en
Logo SANKEN - Sanken electric

LC554XLD Fiches technique(HTML) 3 Page - Sanken electric

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SANKEN ELECTRIC CO., LTD.
LC5540LD-DS
Single-Stage Power Factor Corrected
Off-Line Switching Regulator ICs
LC5540LD Series
January 28, 2013
Electrical Characteristics of Control Part TA = 25°C, VCC = 20 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Pins
Min.
Typ.
Max.
Unit
Power Supply Startup Operation
Operation Start Voltage
VCC(ON)
2 – 1
13.8
15.1
17.3
V
Operation Stop Voltage*
VCC(OFF)
2 – 1
8.4
9.4
10.7
V
Circuit Current in Operation
ICC(ON)
2 – 1
–
–
4.7
mA
Startup Circuit Operation Voltage
VSTARTUP
8 – 1
18
21
24
V
Startup Current
ICC(STARTUP)
VCC = 13 V
2 – 1
−8.5
−4.0
−1.5
mA
Startup Current Threshold Biasing
Voltage*
VCC(BIAS)
2 – 1
9.5
11.0
12.5
V
Normal Operation
PWM Operation Frequency
fOSC
LC5545LD
8 – 1
60
72
84
kHz
LC5546LD
50
60
70
kHz
LC5548LD
60
72
84
kHz
Maximum On-Time
tON(MAX)
LC5545LD
8 – 1
8.0
9.3
11.2
μs
LC5546LD
9.0
11.2
13.4
μs
LC5548LD
8.0
9.3
11.2
μs
FB Pin Control Minimum Voltage
VFB(MIN)
4 – 1
0.50
0.85
1.20
V
Maximum Feedback Current
IFB(MAX)
4 – 1
–40
–25
–10
μA
Leading Edge Blanking Time
tON(LEB)
3 – 1
−
600
−
ns
Quasi-Resonant Operation Threshold
Voltage-1
VBD(TH1)
3 – 1
0.14
0.24
0.34
V
Quasi-Resonant Operation Threshold
Voltage-2
VBD(TH2)
3 – 1
0.11
0.16
0.21
V
Protection Operation
OCP Pin Overcurrent Protection
(OCP) Threshold Voltage
VOCP
3 – 1
−0.66
−0.60
−0.54
V
OCP Pin Source Current
IOCP
3 – 1
−120
−40
−10
μA
OCP Pin Overvoltage Protection
(OVP) Operation Voltage
VBD(OVP)
3 – 1
2.2
2.6
3.0
V
Overload Protection (OLP) Threshold
Voltage
VFB(OLP)
4 – 1
4.1
4.5
4.9
V
OVP Pin OVP Threshold Voltage
VOVP(OVP)
6 – 1
1.6
2.0
2.4
V
VCC Pin OVP Threshold Voltage
VCC(OVP)
2 – 1
28.5
31.5
34.0
V
Thermal Shutdown Activating
Temperature
TJ(TSD)
–
135
–
–
°C
*VCC(BIAS) > VCC(OFF) always.



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