FAN7315G Просмотр технического описания (PDF) - Fairchild Semiconductor
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FAN7315G Datasheet PDF : 8 Pages
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FAN7315
Electrical Characteristics
Vcc=12V, for typical values Ta=25°C, for min/max values Ta is the operating ambient temperature range with
-40°C ≤ Ta ≤ 85°C and 7.4V ≤ Vcc ≤ 20V, unless otherwise specified.
Characteristics
Symbol Test Condition
REFERENCE SECTION
Load Regulation
∆V25load
0 ≤ I25 ≤ 3mA
Line Regulation
∆V25line 7.4V ≤ VCC ≤ 20V
2.5V Regulation Voltage
V25
-
OSCILLATOR SECTION(MAIN)
Oscillation Frequency
fosc Ta=25°C, Ct = 330pF,
Rt = 45k
Ct = 330pF, Rt = 45k
CT High Voltage
Vcth
-
CT Low Voltage
Vbctl
-
OSCILLATOR SECTION(BURST)
Oscillation Frequency
foscb Ctb = 6.8nF, Rt=45k
BCT High Voltage
Vbcth
-
BCT Low Voltage
Vbctl
-
ERROR AMP SECTION
Error Amp Transconductance(Note1)
Gm Va = 1~2.5V
Output Sink Current
lsin EA_OUT = 1V
Output Source Current
lsur EA_OUT = 1V
Open Lamp Regulation Current
Iolr OLR=2.5V
EA_OUT High Volgate
Vea_outh
SOFT START SECTION
Soft Start Current
Iss S_S=0V
Soft Start Clamping Voltage
Vssh
-
PROTECTION SECTION
Open Lamp Protection Voltage
Volp
-
Open Lamp Regulation Voltage
Volr
-
Short Circuit Protection Voltage
Vscp
-
Thermal Shutdown On Temp.(Note1)
TSDon
-
TSD Hysterisis(Note1)
TSDhy
-
UNDER VOLTAGE LOCK OUT SECTION
Start Threshold Voltage On
Vthon
-
UVLO Hysteresis
Vhys
-
Start Up Current
Ist VCC = Vth-0.2V
Operating Supply Current
Iop VCC = 12V
Stand-by Current
Isb VCC = 12V, ENA=0V
Min.
-
-
2.44
93
89
-
-
150
-
-
100
44
33
160
2.2
3.5
2.2
245
1.8
1.75
130
-
5.2
100
48
-
55
Typ.
2
2
2.49
100
100
1.95
0.5
191
2
0.5
360
73
50
240
2.5
5.2
2.55
300
2
2
150
30
6.3
300
85
-
80
Max. Unit
25 mV
25 mV
2.54 V
107 kHz
111 kHz
-
V
-
V
232 Hz
-
V
-
V
600 umho
100 uA
67 uA
320 uA
2.8
V
6.9 uA
2.9
V
425 mV
2.2
V
2.25 V
170 °C
-
°C
7.4
V
500 mV
122 uA
2
mA
105 uA
5
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