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CS5305 Datasheet(PDF) 6 Page - ON Semiconductor

Part No. CS5305
Description  Three−Phase Synchronous Switching Step−Down Controller with Single Wire Current Sharing
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CS5305 Datasheet(HTML) 6 Page - ON Semiconductor

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CS5305
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ELECTRICAL CHARACTERISTICS (continued) (0°C < TA < 70°C; 0°C < TJ < 125°C; 9.5 V < VCC < 14 V; CGATEX = 100 pF,
CCOMP = 0.01μF, CSCOMP = 0.01μF, CVCC = 0.1μF, RROSC = 32.4 kΩ, RSHARE = 60.4 kΩ, V(OCSET) = 0.54 V, DAC Code 01110; unless
otherwise stated.)
Parameter
Unit
Max
Typ
Min
Test Conditions
Power Good Output
0
1
1
0
1
1.330
1.365
1.400
V
0
1
1
0
0
1.354
1.389
1.425
V
0
1
0
1
1
1.378
1.414
1.450
V
0
1
0
1
0
1.401
1.438
1.475
V
0
1
0
0
1
1.425
1.463
1.500
V
0
1
0
0
0
1.449
1.487
1.525
V
0
0
1
1
1
1.473
1.511
1.550
V
0
0
1
1
0
1.496
1.536
1.575
V
0
0
1
0
1
1.520
1.560
1.600
V
0
0
1
0
0
1.544
1.584
1.625
V
0
0
0
1
1
1.568
1.609
1.650
V
0
0
0
1
0
1.591
1.633
1.675
V
0
0
0
0
1
1.615
1.658
1.700
V
0
0
0
0
0
1.639
1.682
1.725
V
Switch Leakage Current
VCC = 14 V, PWRGDS = 1.4 V
1.0
μA
Delay
PWRGDS low to PWRGD low
50
250
600
μs
Output Low Voltage
PWRGDS = 1.0 V,
IPWRGOOD = 4.0 mA
0.15
0.4
V
Voltage Feedback Error Amplifier
VFB Bias Current
Note 2.
9.5
10.3
11.5
μA
Comp Source Current
COMP = 0.5 V to 2.0 V,
VFB = 1.6 V
15
30
60
μA
Comp Sink Current
COMP = 0.5 V to 2.0 V,
VFB = 1.0 V
15
30
60
μA
Transconductance
−10 μA < ICOMP < +10 μA, Note 3.
32.0
mmho
Output Impedance
Note 3.
2.5
Open Loop DC Gain
Note 3.
60
95
dB
Unity Gain Bandwidth
COMP = 0.01 μF, Note 3.
50
kHZ
PSRR @ 1.0 kHz
Note 3.
70
dB
COMP Max Voltage
VFB = 0 V
2.4
2.7
V
COMP Min Voltage
VFB = 1.6 V
0.1
0.2
V
COMP Discharge Threshold
0.15
0.2
0.25
V
Hiccup Latch Discharge Current
CSx − CSREF = .05 V,
OCSET = 0.1 V,
COMP = 0.5 V
2.0
5.0
10
μA
Hiccup Charge / Discharge Ratio
4.5
6.0
7.5
2. The VFB Bias Current changes with the value of ROSC per Figure 5.
3. Guaranteed by design. Not tested in production.


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