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NCV8853 Datenblatt(PDF) 4 Page - ON Semiconductor

Teilenummer NCV8853
Bauteilbeschribung  Automotive Grade Non-Synchronous Buck Controller
PDF  12 Pages
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Hersteller  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
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NCV8853 Datenblatt(HTML) 4 Page - ON Semiconductor

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ELECTRICAL CHARACTERISTICS (VIN = 3.4 V to 36 V, EN = 5 V. Min/Max values are valid for the temperature range
−40
°C ≤ TJ ≤ 150°C unless noted otherwise, and are guaranteed by test, design or statistical correlation.)
Characteristic
Symbol
Conditions
Min
Typ
Max
Unit
GENERAL
Quiescent Current
Iq,sleep
VIN = 13.2 V, EN = 0 V, Sleep Mode
2.5
6.0
mA
Iq,off
VIN = 13.2 V, EN = 5 V or toggled, VFB = 1 V,
No Switching
2.0
3.0
mA
Iq,on
VIN = 13.2 V, EN = 5 V or toggled, VFB = 0 V,
Switching
3.0
5.0
mA
Undervoltage Lockout
Vuvlo
VIN decreasing
2.9
3.1
3.3
V
Undervoltage Lockout
Hysteresis
Vuvlo,hys
50
150
300
mV
Overvoltage Lockout
Vovlo
36.9
38
39.3
V
OSCILLATOR
Switching Frequency
fSW
306
340
374
kHz
Slope Compensation
ma
51
mV/
ms
Minimum On Time
tonmin
90
110
140
ns
Max Duty Cycle − Switching
Dmax,sw
Maximum duty cycle when switching
93
%
Max Duty Cycle
Dmax
100
%
Soft−Start Time
tss
1.0
1.5
2.0
ms
Soft−Start Delay
tss,dlly
200
300
400
ms
EN/SYNC
Low Threshold
Vs,il
0.8
V
High Threshold
Vs,ih
2.0
V
Input Current
Isync
5.0
10
mA
SYNC Frequency Range
fsync
Relative to Nominal Switching Frequency
80
300
%
SYNC Delay
ts,dly
From SYNC falling edge to GDRV falling edge
50
100
ns
SYNC Duty Cycle
Dsync
25
75
%
Disable Delay Time
ten
% of fSW
300
%
POWER GOOD
Rising Threshold
PGrise
% of Vref
87
90
93
%
Falling Threshold
PGfall
% of Vref
90
93
96
%
Power Good Pulldown
Vpg
0.40
V
VOLTAGE ERROR AMP
DC Gain
Av
55
80
91
dB
Gain−Bandwidth Product
GBW
1.7
2.4
3.1
MHz
FB Bias Current
Ivfb,bias
0.1
1.0
mA
Charge Currents
Isrc,vea
Source, VFB = 0.9 V, VCOMP = 1.2 V
1.2
1.8
2.5
mA
Isnk,vea
Sink, VFB = 0.7 V, VCOMP = 1.2 V
0.5
0.8
1.0
Reference Voltage
Vref
784
800
816
mV
High Saturation Voltage
Vc,max
2.2
2.3
V
Low Saturation Voltage
Vc,min
0.001
0.3
V
CURRENT SENSE AMP
Common−Mode Range
CMR
3.1
40
V
Differential Mode Range
DMR
300
mV
Amplifier Gain
Acsa
2.0
V/V



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