FAN7544 Ver la hoja de datos (PDF) - Fairchild Semiconductor
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FAN7544 Datasheet PDF : 14 Pages
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FAN7544
Electrical Characteristics
Unless otherwise specified, for typical values Vcc=15V, Ta=25°C, For Min/Max values Ta is the operating ambient
temperature range with -25°C ≤ Ta ≤ 125°C and 12.7V ≤ VCC ≤ 30V
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
UNDER VOLTAGE LOCK OUT SECTION
Start Threshold Voltage
UVLO Hysteresis
SUPPLY CURRENT SECTION
VTH(st)
HY(st)
VCC Increasing
-
10.5 11.6 12.7 V
1.4 1.9 2.4 V
Start Up Supply Current
Operating Supply Current
Dynamic Operating Supply Current
OSCILLATOR SECTION
CPH Pin Charging Current 1
CPH Pin Charging Current 2
CPH Pin Clamp Voltage
Preheating Frequency
IST
ICC
IDCC
VCC < VTH(st)
Output not switching
50kHz, CL =1nF
ICPHL
ICPHH
VCLAMP
fPH
VCPH=2V
VCPH=4V
-
VCPH=0V,
RPH=47kΩ, CT=470pF
- 0.14 0.2 mA
- 6.5 10 mA
-
8
12 mA
1.3 1.6 1.9 µA
7
10 13 µA
4.8 5.6 6.4 V
70 81.5 93 kHz
Preheating Dead Time
tpd
VCPH=0V,
RPH=47kΩ, CT=470pF
0.8 1.3 1.8 µs
Operating Frequency
fOS
VCPH=Open,
RT=80kΩ, CT=470pF
45.5 50 54.5 kHz
Operating Dead Time
CT Threshold Voltage(note1)
tOD
∆VCT
VCPH=Open,
RT=80kΩ, CT=470pF
Ta=25°C
1.6 2.0 2.4 µs
3.2 3.7 4.2 V
CT Charging Current
ICHG -
170 220 270 µA
CT Discharging Current
IDIS
-
0.9 1.15 1.4 mA
Temperature Stability (Note1)
∆f/∆T
-25°C ≤ Ta ≤ 125°C,
VCC = 25V
-
1
3%
Voltage Stability
∆f/∆V 12.7V ≤ VCC ≤ 30V, Ta=25°C -
-
3%
OUTPUT SECTION
Gate Driver Source Current(note1)
Gate Driver Sink Current(note1)
Rising Time (Note1)
Falling Time (Note1)
IOSOURCE VOUT=0V
- 500 - mA
IOSINK VOUT=14.6V
- 500 - mA
tr
CL=1nF, Vcc=15V, Ta=25°C - 130 170 ns
tf
CL=1nF, Vcc=15V, Ta=25°C -
50 100 ns
Maximum Output Voltage
Vomax VCC = 25V
13 15 17 V
Output Voltage With UVLO Activated Vomin VCC = 5V, IO = 100µA
-
-
1
V
PROTECTION SECTION
Shutdown Sink Current(note1)
ISD
RPH=47kΩ
- 0.6 - mA
Latch Mode Quiescent Current
ILATCH VCC = 15V
- 0.36 0.57 mA
Thermal Shutdown Junction
Temperature (Note1)
TSD
-
- 150 -
°C
Note:
1. These parameters, although guaranteed, are not 100% tested in production.
4
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