NCP1445 ONSEMI [ON Semiconductor], NCP1445 Datasheet - Page 3

• Manufacturer Part Number: NCP1445
• Description: 4.0 A 280 kHz/560 kHz Boost Regulators
• Manufacturer: ONSEMI [ON Semiconductor]

2. For the FR4 suffix parts, production testing is performed at 25 C and 85 C; limits at 0 C are guaranteed by design.
3. Guaranteed by design, not 100% tested in production.
ELECTRICAL CHARACTERISTICS
unless otherwise stated.) (See Note 2)
Positive and Negative Error Amplifiers
Oscillator
Sync/Shutdown
FB Reference Voltage (NCP1442/4 only)
NFB Reference Voltage (NCP1443/5 only)
FB Input Current (NCP1442/4 only)
NFB Input Current (NCP1443/5 only)
FB Reference Voltage Line Regulation
(NCP1442/4 only)
NFB Reference Voltage Line Regulation
(NCP1443/5 only)
Positive Error Amp Transconductance
Negative Error Amp Transconductance
Positive Error Amp Gain
Negative Error Amp Gain
V
V
V
V
V
Base Operating Frequency
Reduced Operating Frequency
Maximum Duty Cycle
Base Operating Frequency
Reduced Operating Frequency
Maximum Duty Cycle
FB Frequency Shift Threshold
NFB Frequency Shift Threshold
Sync Range
Sync Range
Sync Pulse Transition Threshold
SS Bias Current
Shutdown Threshold
Shutdown Delay
C
C
C
C
C
Source Current
Sink Current
High Clamp Voltage
Low Clamp Voltage
Threshold
Characteristic
NCP1442, NCP1443, NCP1444, NCP1445
(2.7 V < V
V
V
FB = V
NFB = NV
V
V
I
I
(Note 3)
(Note 3)
FB = 1.0 V or NFB = −1.9 V, V
FB = 1.5 V or NFB = −3.1 V, V
FB = 1.0 V or NFB = −1.9 V; V
FB = 1.5 V or NFB = −3.1 V, V
Reduce V
NCP1442/3, FB = 1.0 V or NFB = −1.9 V
NCP1442/3, FB = 0 V or NFB = 0 V
NCP1442/3
NCP1444/5, FB = 1.0 V or NFB = −1.9 V
NCP1444/5, FB = 0 V or NFB = 0 V
NCP1444/5
Frequency drops to reduced operating frequency
Frequency drops to reduced operating frequency
NCP1442/3
NCP1444/5
Rise time = 20 ns
SS = 0 V
SS = 3.0 V
2.7 V
12 V < V
VC
VC
C
C
C
C
tied to FB; measure at FB
= 1.25 V
= FB
= 1.25 V
=
=
CC
REF
25 mA
5.0 mA
V
< 30 V; 0 C < T
CC
CC
C
REF
http://onsemi.com
from 1.5 V until switching stops
30 V
12 V
Test Conditions
3
A
−
< 85 C; 0 C < T
C
C
C
C
= 1.25 V
= 1.25 V
sinks 25 mA
sources 25 mA
J
< 125 C; For all NCP1442/3/4/5 specifications
1.246
−2.60
−0.03
−0.05
−0.80
−1.0
0.30
0.70
0.36
0.50
Min
−16
300
115
200
100
−90
200
240
480
−10
1.5
30
90
60
82
12
12
−
−
−
−
−2.475
1.276
−0.68
1000
0.01
0.01
1.64
0.47
1.05
0.40
−1.0
0.85
Typ
−10
550
160
500
180
−50
460
280
560
120
500
100
0.1
2.5
0.2
68
96
92
40
1.300
−2.40
−0.50
1500
Max
−5.0
0.03
0.05
0.70
1.30
0.44
1.20
800
225
320
−25
320
120
640
160
500
400
1.0
1.9
4.0
−
−
−
−
−
−
−
mMho
mMho
Unit
%/V
%/V
kHz
kHz
kHz
kHz
kHz
kHz
V/V
V/V
mA
mA
mA
mA
mA
mA
ms
ms
%
%
V
V
V
V
V
V
V
V
V