ncp5424adr2 ON Semiconductor, ncp5424adr2 Datasheet - Page 4

• Manufacturer Part Number: ncp5424adr2
• Description: Dual Synchronous Buck Controller With Input Current Sharing
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
10.8 V < V
Error Amplifier
GATE(H) and GATE(L)
PWM Comparator
2. Guaranteed by design, not 100% tested in production.
V
V
COMP1,2 Source Current
COMP1,2 Sink Current
Reference Voltage 1(2)
COMP1,2 Max Voltage
COMP1,2 Min Voltage
Open Loop Gain
Unity Gain Band Width
PSRR @ 1.0 kHz
Transconductance
Output Impedance
Input Offset, Error Amp. 2
Error Amp. 2 Common Mode Range
High Voltage (AC)
Low Voltage (AC)
Rise Time
Fall Time
GATE(H) to GATE(L) Delay
GATE(L) to GATE(H) Delay
GATE(H)1(2) and GATE(L)1(2)
PWM Comparator Offset
Artificial Ramp
Minimum Pulse Width
FB
FB1(2)
pull−down.
Bias Current
Input Range
CC
Characteristic
< 13.2 V; 10.8 V < BST < 20 V, C
(0 C < T
V
Note 2
COMP1,2 = 1.2 V to 2.5 V; V
COMP1,2 = 1.2 V; V
COMP1 = V
V
V
Note 2
Measure: V
Measure:GATE(L)1,2 or GATE(H)1,2; Note 2
1.0 V < GATE(L)1,2 < V
V
GATE(H)1,2 < 2.0 V, GATE(L)1,2 > 2.0 V
GATE(L)1,2 < 2.0 V, GATE(H)1,2 > 2.0 V;
Resistance to GND
Note 2
V
Duty cycle = 50%, Note 2
Note 2
FBX
FB1(−2)
FB1(−2)
CC
FB1(−2)
BST − GATE(H)1,2; Note 2
1.0 V < GATE(H)1,2 < BST − 1.0 V,
BST
BST − 1.0 > GATE(H)1,2 > 1.0 V,
BST
BST
BST
GATE(H)1,2 starts switching
GATE(H)1,2
− 1.0 > GATE(L)1,2 > 1.0 V
= 0 V
A
= 0.8 V
= 1.2 V
= 0 V; Increase COMP1,2 until
14 V
14 V
14 V
14 V
< 70 C; 0 C < T
CC
FB1
= C
http://onsemi.com
− GATE(L)1,2;
Test Conditions
; COMP2 = V
GATE(L)1,2
NCP5424
FB1(−2)
−
−
−
−
−
−
CC
4
J
< 125 C; R
= 1.0 nF, V
− 1.0 V
= 1.2 V
FB1(−2)
FB−2
= 0.8 V
FB+2
OSC
= 30.9 k, C
= 1.0 V; unless otherwise specified.)
0.980
−3.0
1.75
0.30
Min
COMP1,2
3.0
15
15
20
20
50
60
−
0
−
−
−
−
−
−
−
−
−
−
−
= 0.1 mF,
1.000
0.25
0.40
Typ
125
105
0.5
3.3
2.5
2.0
30
30
95
40
70
32
20
15
40
40
−
0
0
0
−
1.020
Max
0.35
0.50
280
150
300
1.6
1.1
3.0
0.5
0.5
60
60
50
50
70
70
−
−
−
−
−
−
−
mmho
Unit
kHz
MW
mV
mV
kW
mA
mA
mA
dB
dB
ns
ns
ns
ns
ns
V
V
V
V
V
V
V
V