NCP5425
ELECTRICAL CHARACTERISTICS (continued) (0°C < TJ < 125°C; ROSC = 30.9 k, CCOMP1,2 = 0.1 mF, 4.75 V < VCC
< 13.2 V; 10.8 V < BST < 20 V, CGATE(H)1,2 = CGATE(L)1,2 = 1.0 nF; unless otherwise specified.)
Characteristic
Test Condition
Min
Typ
Max
Unit
OSCILLATOR
Switching Frequency
Switching Frequency
Switching Frequency
ROSC Voltage
Phase Difference
ROSC = 61.9 k; Measure GATE(H)1
ROSC = 30.9 k; Measure GATE(H)1
ROSC = 11.8 k; Measure GATE(H)1
ROSC = 30.9 k
−
112
150
188
kHz
224
300
376
kHz
562
750
938
kHz
0.970
1.000
1.030
V
−
180
−
°
Low Noise Disable
Guaranteed By Design
−
3.1
3.5
V
OVERCURRENT PROTECTION
OVC Comparator Offset Voltage
0 V < IS+1(2) < 5.5 V
0 V < IS−1(2) < 5.5 V
55
70
85
mV
IS+1(2) Bias Current
IS−1(2) Bias Current
0 V < IS+1(2) < 5.5 V
0 V < IS−1(2) < 5.5 V
−1.0
0.1
−1.0
0.1
1.0
mA
1.0
mA
OVC Common Mode Range
−
0
−
5.5
V
SUPPLY CURRENTS
VCC Current
BST Current
COMP = 0 V (No Switching)
COMP = 0 V (No Switching)
−
16
22
mA
−
3.5
6.0
mA
UNDERVOLTAGE LOCKOUT
Start Threshold
GATE(H) Switching; COMP1(2) Charging
3.8
4.2
4.6
V
Stop Threshold
GATE(H) Not Switching; COMP1(2) Discharging
3.6
4.0
4.4
V
Hysteresis
Start−Stop
0.1
0.2
0.45
V
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