NCP5424 ON Semiconductor, NCP5424 Datasheet - Page 5

• Manufacturer Part Number: NCP5424
• Description: Dual Synchronous Buck Controller
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS (continued)
10.8 V < V
3. Guaranteed by design, not 100% tested in production.
Oscillator
Switching Frequency
Switching Frequency
Switching Frequency
R
Phase Difference
Supply Currents
V
BST Current
Undervoltage Lockout
Start Threshold
Stop Threshold
Hysteresis
Hiccup Mode Overcurrent Protection (Controller 1)
OVC Comparator Offset Voltage
Discharge Threshold
IS+ 1 Bias Current
IS− Bias Current
OVC Common Mode Range
OVC Latch COMP1 Discharge Current
Cycle−to−Cycle Current Limit (Controller 2)
OVC Comparator Offset Voltage
IS+ 2 Bias Current
OVC Common Mode Range
OVC Latch COMP2 Discharge Current
CC
OSC
Current
Voltage
CC
Characteristic
< 13.2 V; 10.8 V < BST < 20 V, C
R
R
R
R
COMP1,2 = 0 V (No Switching)
COMP1,2 = 0 V (No Switching)
GATE(H) Switching; COMP1,2 charging
GATE(H) not switching; COMP1,2 discharging
Start−Stop
0 V < IS+ 1 < 5.5 V, 0 V < IS− < 5.5 V
0 V < IS+ 1 < 5.5 V
0 V < IS− < 5.5 V
COMP1 = 1.0 V
0 V < IS+ 2 < 5.5 V, 0 V < IS− < 5.5 V
0 V < IS+ 2 < 5.5 V
COMP = 1.0 V
OSC
OSC
OSC
OSC
GATE(H)1,2
= 61.9 k; Measure GATE(H)1; Note 3
= 30.9 k; Measure GATE(H)1
= 15.1 k; Measure GATE(H)1; Note 3
= 30.9 k, Note 3
(0 C < T
= C
http://onsemi.com
Test Conditions
GATE(L)1,2
NCP5424
A
< 70 C; 0 C < T
−
−
−
−
5
= 1.0 nF, V
FB+2
J
< 125 C; R
= 1.0 V; unless otherwise specified.)
OSC
0.970
0.20
−1.0
−2.0
−1.0
Min
250
450
112
7.8
7.0
0.5
2.0
0.3
55
55
−
−
−
0
0
= 30.9 k, C
1.000
0.25
Typ
150
300
600
180
3.5
8.6
7.8
0.8
0.1
0.2
5.0
0.1
1.2
13
70
70
−
−
COMP1,2
= 0.1 mF,
1.030
Max
0.30
188
350
750
6.0
9.4
8.6
1.5
1.0
2.0
5.5
8.0
1.0
5.5
3.5
17
85
85
−
Unit
kHz
kHz
kHz
mA
mA
mV
mV
mA
mA
mA
mA
mA
V
V
V
V
V
V
V