PFS7323-7329
Conditions
SOURCE = 0 V; VCC = 12 V,
TJI = -40 °C to 125 °C
Parameter
Symbol
Min
Typ
Max
Units
(Note C) (Unless Otherwise Specified)
Current Limit/Circuit Protection (cont.)
COMPENSATION Pin
COFF
0 °C < TJI < 100 °C
0 °C < TJI < 100 °C
0.5
1.2
1.65
VREF
V
ms
V
Start-Up Threshold
COMPENSATION Pin
tC(OFF)
5
Off Delay
VREF
VREF
FEEDBACK Pin
FBOV
0 °C < TJI < 100 °C
Referenced to VREF
Overvoltage Threshold
+600 mV +700 mV +850 mV
VREF
+25 mV
VREF
VREF
0 °C < TJI < 100 °C Referenced to VREF
0 °C < TJI < 100 °C Hysterisis
V
COMPENSATION Pin
COV
+90 mV +160 mV
Overvoltage Threshold
50
mV
FEEDBACK Pin/
tFB(OV)
COMPENSATION Pin
tC(OV)
0 °C < TJI < 100 °C
1
2
3
ms
V
Overvoltage Delay
FEEDBACK Pin
FBOV(HYST)
0 °C < TJI < 100 °C
0 °C < TJI < 100 °C
+300 mV
VC
Overvoltage Hysteresis
FEEDBACK Pin
Overvoltage Offset
Threshold
VC
VC
FBCOV
V
Referenced to VC (COMPENSATION Pin) +225 mV +250 mV +275 mV
FEEDBACK Pin
Undervoltage Offset
Threshold
0 °C < TJI < 100 °C VC VC VC
Referenced to VC (COMPENSATION Pin) -275 mV -250 mV -215 mV
FBCUV
IFBC
V
0 °C < TJI < 100 °C
2
FEEDBACK Pin
Charge Current
mA
|VFB-VC| > 215 mV
Start-Up VCC
(Rising Edge)
VCC+
VCC
TJI = 25 °C
TJI = 25 °C, See Note A
TJI = 25 °C
9.5
10.2
9.0
10.2
13.2
9.5
V
V
V
V
VCC Operating Range
12
Shutdown VCC
(Falling Edge)
VCC-
VCC Hysteresis
VCC(HYST)
ICD1
0 °C < TJI < 100 °C
0.2
0.5
0.8
0 °C < TJI < 100 °C
3.5
Switching
Supply Current
Characteristics
mA
0 °C < TJI < 100 °C
ICD2
VCC(POR)
IVCC(POR)
VR
2.5
4.25
2.5
Not Switching
VCC Power-Up
Reset Threshold
TJI = 25 °C
TJI = 25 °C
2.85
3.6
V
mA
V
VCC Power-Up
Reset Current
0 °C < TJI < 100 °C
RREF = 24.9 kW
REFERENCE Pin
Voltage
1.240
48.50
24.00
1.265
51.00
25.50
1.300
53.50
27.00
Full Power Mode
(24.9 kW)
REFERENCE Pin
Threshold
IR
0 °C < TJI < 100 °C
mA
Efficiency Power
Mode (49.9 kW)
22
Rev. B 06/13
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