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ADP3293 Datasheet(PDF) 7 Page - ON Semiconductor

Part # ADP3293
Description  8-Bit, Programmable 2- to 3-Phase Synchronous Buck Controller
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

ADP3293 Datasheet(HTML) 7 Page - ON Semiconductor

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ADP3293
http://onsemi.com
7
ELECTRICAL CHARACTERISTICS (VCC = 12 V, FBRTN = GND, TA = 0°C to 85°C unless otherwise noted) (Note 1)
Parameter
Unit
Max
Typ
Min
Conditions
Symbol
Current Sense Amplifier
Offset Voltage
VOS(CSA)
CSSUM - CSREF, CSREF = 0.8V ~1.6V,
Temperature Range: 0 °C to 60 °C
−0.5
+0.5
mV
Input Bias Current
IBIAS(CSSUM) Temperature Range: 0 °C to 60 °C
−7.5
+7.5
nA
Gain Bandwidth Product
GBW(CSA)
CSSUM = CSCOMP
10
MHz
Slew Rate
CCSCOMP = 10 pF
10
V/ms
Input Common−Mode Range
CSSUM and CSREF
0
3.5
V
Output Voltage Range
0.05
3.5
V
Output Current
ICSCOMP
500
mA
Current Limit Latchoff Delay Time
tOC(DELAY)
CDELAY = 10 nF
8.0
ms
Current Balance Amplifier
Common−Mode Range (Note 3)
VSW(X)CM
−600
+200
mV
Input Resistance
RSW(X)
SW(X) = 0 V
10
17
26
kW
Input Current
ISW(X)
SW(X) = 0 V
8.0
12
20
mA
Input Current Matching
DISW(X)
SW(X) = 0 V
−4.0
+4.0
%
IMON Output
Clamp Voltage
1.0
1.15
V
Current Gain
(IMONCURRENT) / (ILIMITCURRENT),
RILIM = RIMON = 8.0 kW, PSI = High,
Temperature Range: 0 °C to 60 °C
9.5
10
10.5
Output Current
800
mA
Offset
VCSREF − VILIMIT
1.2
mV
Current Limit Comparator
Current Limit Threshold Current
ICL
4/3 x IIREF, PSI = High
17.7
20
22.3
mA
Delay Timer
Normal Mode Output Current
IDELAY
IDELAY = IIREF
12
15
18
mA
Output Current in Current Limit
IDELAY(CL)
IDELAY(CL) = 0.25 x IIREF
3.0
3.75
4.5
mA
Threshold Voltage
VDELAY(TH)
1.6
1.7
1.8
V
Soft−Start
Output Current
ISS
During startup
13.5
17.5
21.5
mA
Soft−Start slew rate
dv/dt
Css = 5.6 nF
2.5
mV/ms
DVID slew rate
dv/dt
Css = 5.6 nF
15
mV/ms
Enable Input
Input Low Voltage
VIL(EN)
300
mV
Input High Voltage
VIH(EN)
800
mV
Input Current
IIN(EN)
1.0
mA
Delay Time
tDELAY(EN)
EN > 800 mV, CDELAY = 10 nF
2.0
ms
OD and ODN Output
Output Low Voltage
VOL(OD)
VOL(ODN)
IOD(SINK) = −400 mA
IODN(SINK) = −400 mA
160
500
mV
Output High Voltage
VOH(OD)
VOH(ODN)
IOD(SOURCE) = 400 mA,
IODN (SOURCE) = 400 mA
4.0
5.0
V
OD Pulldown Resistor
60
kW
Thermal Throttling Control
TTSNS Voltage Range
Internally limited
0
5.0
V
TTSNS Bias Current
−133
−123
−113
mA
TTSNS VRHOT Threshold Voltage
715
760
805
mV
TTSNS Hysteresis
50
mV
1. All limits at temperature extremes are guaranteed via correction using standard quality control (SQC).
2. Guaranteed by characterization, not tested in production.
3. Guaranteed by design, not tested in production.


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