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CS5161 Datasheet(PDF) 3 Page - ON Semiconductor

Part No. CS5161
Description  CPU 5−Bit Synchronous Buck Controller
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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CS5161 Datasheet(HTML) 3 Page - ON Semiconductor

 
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CS5161, CS5161H
http://onsemi.com
3
MAXIMUM RATINGS (continued)
Pin Name
Max Current
Max Operating Voltage
COMP
6.0 V/−0.3 V
200 μA
VFB
6.0 V/−0.3 V
−0.2 μA
COFF
6.0 V/−0.3 V
−0.2 μA
VFFB
6.0 V/−0.3 V
−0.2 μA
VID0 − VID4
6.0 V/−0.3 V
−50 μA
VGATE(H) (CS5161)
18 V/−0.3 V
100 mA DC/1.5 A peak
VGATE(H) (CS5161H)
20 V/−0.3 V
100 mA DC/1.5 A peak
VGATE(L)
16 V/−0.3 V
100 mA DC/1.5 A peak
LGnd
0 V
25 mA
PGnd
0 V
100 mA DC/1.5 A peak
ELECTRICAL CHARACTERISTICS (0°C < TA < +70°C; CS5161: 0°C < TJ < +85°C; CS5161H: 0°C < TJ < +125°C;
9.5 V < VCC1 < 14 V; CS5161: 5.0 V < VCC2 < 16 V; CS5161H: 5.0 V < VCC2 < 20 V; DAC Code: VID4 = VID2 = VID1 = VID0 =1; VID3 = 0;
CVGATE(L) and CVGATE(H) = 1.0 nF; COFF = 330 pF; CSS = 0.1 μF, unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
Error Amplifier
VFB Bias Current
VFB = 0 V
0.3
1.0
μA
Open Loop Gain
1.25 V < VCOMP , 4.0 V; CCOMP = 0.1 μF;
Note 2
80
dB
Unity Gain Bandwidth
CCOMP = 0.1 μF; Note 2
50
kHz
COMP SINK Current
VCOMP = 1.5 V; VFB = 3.0 V; VSS > 2.0 V
30
60
120
μA
COMP SOURCE Current
VCOMP = 1.2 V; VFB = 2.7 V; VSS = 5.0 V
15
30
60
μA
COMP CLAMP Current
VCOMP = 0 V; VFB = 2.7 V
0.4
1.0
1.6
mA
COMP High Voltage
VFB = 2.7 V; VSS = 5.0 V
4.0
4.3
5.0
V
COMP Low Voltage
VFB = 3.0 V
1.0
1.15
V
PSRR
8.0 V < VCC1 < 14 V @ 1.0 kHz;
CCOMP = 0.1 μF; Note 2
70
dB
Transconductance
33
mmho
VCC1 Monitor
Start Threshold
Output switching
8.70
9.05
9.40
V
Stop Threshold
Output not switching
8.55
8.90
9.25
V
Hysteresis
Start−Stop
150
mV
Soft Start (SS)
Charge Time
1.6
3.3
5.0
ms
Pulse Period
25
100
200
ms
Duty Cycle
(Charge Time /Pulse Period) × 100
1.0
3.3
6.0
%
COMP Clamp Voltage
VFB = 0 V; VSS = 0
0.50
0.95
1.10
V
VFFB SS Fault Disable
VGATE(H) = Low; VGATE(L) = Low
0.9
1.0
1.1
V
High Threshold
2.5
3.0
V
2. Guaranteed by design, not 100% tested in production.


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