LC5523F
Single-Stage Power Factor Corrected
Off-Line Switching Regulator IC
ELECTRICAL CHARACTERISTICS of Control Part TA = 25°C, VCC = 20 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Pins Min.
Startup Operation
Operation Start Voltage
Operation Stop Voltage*
Operating Current
Startup Circuit Operation Voltage
Startup Current
Startup Current Threshold Biasing
Voltage-1*
VCC(ON)
VCC(OFF)
ICC(ON)
VSTARTUP
ICC(STARTUP) VCC = 13 V
VCC(BIAS)1
4 – 2 13.8
4 – 2 8.4
4–2
–
1 – 2 42
4 – 2 −5.5
4 – 2 9.5
Startup Current Threshold Biasing
Voltage-2
VCC(BIAS)2
4 – 2 14.4
Normal Operation
PWM Operation Frequency
Maximum On-Time
FB Pin Voltage Minimum Limit
Maximum Feedback Current
Leading Edge Blanking Time
Quasi-Resonant Operation Threshold
Voltage-1
fOSC
tON(MAX)
VFB(MIN)
IFB(MAX)
tON(LEB)
VBD(TH1)
1 – 2 11.0
1 – 2 30.0
6 – 2 0.55
6 – 2 −40
5–2
−
5 – 2 0.14
Quasi-Resonant Operation Threshold
Voltage-2
VBD(TH2)
5 – 2 0.12
Protection Operation
OCP Pin Overcurrent Protection
(OCP) Threshold Voltage
VOCP
5 – 2 −0.66
OCP Pin Source Current
OCP Pin Overvoltage Protection
(OVP) Threshold Voltage
IOCP
VBD(OVP)
5–2
5–2
−120
2.2
Overload Protection (OLP) Threshold
Voltage-1
VFB(OLP)1
6 – 2 5.0
Overload Protection (OLP) Threshold
Voltage-2
VFB(OLP)2
6 – 2 4.1
OVP Pin OVP Threshold Voltage
VCC Pin OVP Threshold Voltage
Thermal Shutdown Activating
Temperature
VOVP(OVP)
VCC(OVP)
TJ(TSD)
7 – 2 1.6
4 – 2 28.5
–
135
*VCC(BIAS)1 > VCC(OFF) always.
Typ.
15.1
9.4
–
57
−3.0
11.0
16.6
14.0
40.0
0.90
−25
500
0.24
0.17
−0.60
−40
2.6
5.5
4.5
2.0
31.5
–
Max.
17.3
10.7
3.7
72
−1.0
12.5
18.8
18.0
50.0
1.25
−10
−
0.34
0.22
−0.54
−10
3.0
6.0
4.9
2.4
34.0
–
Unit
V
V
mA
V
mA
V
V
kHz
μs
V
μA
ns
V
V
V
μA
V
V
V
V
V
°C
LC5523F-DS
SANKEN ELECTRIC CO., LTD.
3
November 26, 2012