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NCP1582 Datasheet(PDF) 4 Page - ON Semiconductor

Part No. NCP1582
Description  Low Voltage Synchronous Buck Controllers
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP1582 Datasheet(HTML) 4 Page - ON Semiconductor

 
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NCP1582, NCP1582A, NCP1583
http://onsemi.com
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ELECTRICAL CHARACTERISTICS (0
_C < TA < 70_C, −40_C < TJ < 125_C (Note 2), 4.5 V < VCC < 13.2 V, 4.5 V < BST < 26.5 V,
CTG = CBG = 1.0 nF(REF:NTD30N02), for min/max values unless otherwise noted.)
Characteristic
Conditions
Min
Typ
Max
Unit
Input Voltage Range
4.5
13.2
V
Boost Voltage Range
4.5
26.5
V
Supply Current
Quiescent Supply Current
VFB = 1.0 V, No Switching
VCC = 13.2 V
1.0
1.75
mA
Boost Quiescent Current
VFB = 1.0 V, No Switching
140
mA
Under Voltage Lockout
UVLO Threshold
VCC Rising Edge
3.85
4.2
V
UVLO Hysteresis
0.5
V
Switching Regulator
VFB Feedback Voltage,
Control Loop in Regulation
TA = 0 to 70°C
−40 to 125
°C
0.788
0.8
0.8
0.812
V
Oscillator Frequency (NCP1582,
NCP1582A)
TA = 0 to 70°C
−40 to 125
°C
300
350
350
400
kHz
Oscillator Frequency (NCP1583)
TA = 0 to 70°C
−40 to 125
°C
275
300
300
325
kHz
Ramp−Amplitude Voltage
1.1
V
Minimum Duty Cycle
0
%
Maximum Duty Cycle
70
75
80
%
Minimum Pulse Width
Static Operating
100
150
ns
Blanking Time
50
ns
BG Minimum On Time
~500
ns
Error Amplifier (GM)
Transconductance
5.0
mmho
Open Loop DC Gain
55
70
DB
Output Source Current
Output Sink Current
VFB = 0.8 V
VFB > 0.8 V
80
80
120
120
mA
mA
Input Offset Voltage
−2.0
0
2.0
mV
Input Bias Current
0.1
1.0
mA
Unity Gain Bandwidth
4.0
Mhz
Soft−Start
SS Source Current
VFB < 0.8 V
5.0
10
15
mA
Switch Over Threshold
100
% of Vref
Current Limit
Trip Voltage (NCP1582, NCP1583)
Vphase to ground
−350
mV
Trip Voltage (NCP1582A)
Vphase to ground
−450
mV
Gate Drivers
Upper Gate Source
Vgs = 6.0 V
0.7
A
Upper Gate Sink
Vugate wrt Phase = 1.0 V
2.4
W
Lower Gate Source
Vgs = 6.0 V
0.7
A
Lower Gate Sink
Vlgate wrt GND = 1.0 V
2.2
W
PHASE Falling to BG Rising Delay
VCC = 12 V, PHASE < 2.0 V, BG > 2.0 V
30
90
ns
BG Falling to TG Rising Delay
VCC = 12 V, BG < 2.0 V, TG > 2.0 V
30
60
ns
Enable Threshold
0.4
V
2. Specifications to −40
°C are guaranteed via correlation using standard quality control (SQC), not tested in production.


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