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CS5151 数据表(PDF) 3 Page - Cherry Semiconductor Corporation

部件名 CS5151
功能描述  CPU 4-Bit Nonsynchronous Buck Controller
PDF  14 Pages
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制造商  CHERRY [Cherry Semiconductor Corporation]
网页  http://www.cherrycorp.com/
标志 CHERRY - Cherry Semiconductor Corporation

CS5151 数据表(HTML) 3 Page - Cherry Semiconductor Corporation

  CS5151 Datasheet HTML 1Page - Cherry Semiconductor Corporation CS5151 Datasheet HTML 2Page - Cherry Semiconductor Corporation CS5151 Datasheet HTML 3Page - Cherry Semiconductor Corporation CS5151 Datasheet HTML 4Page - Cherry Semiconductor Corporation CS5151 Datasheet HTML 5Page - Cherry Semiconductor Corporation CS5151 Datasheet HTML 6Page - Cherry Semiconductor Corporation CS5151 Datasheet HTML 7Page - Cherry Semiconductor Corporation CS5151 Datasheet HTML 8Page - Cherry Semiconductor Corporation CS5151 Datasheet HTML 9Page - Cherry Semiconductor Corporation Next Button
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PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Electrical Characteristics: 0°C < TA < +70°C; 0°C < TJ < +85°C; 8V < VCC1 < 14V; 5V < VCC2 < 14V; DAC Code: VID2 = VID1 =
VID0 = 1; VID3 = 0; CVGATE = 1nF; COFF = 330pF; CSS = 0.1µF, unless otherwise specified.
s
DAC: continued
VID3
VID2
VID1
VID0
0
1
0
0
3.1086
3.1400
3.1714
V
0
0
1
1
3.2076
3.2400
3.2724
V
0
0
1
0
3.3066
3.3400
3.3734
V
0
0
0
1
3.4056
3.4400
3.4744
V
0
0
0
0
3.5046
3.5400
3.5754
V
s
VGATE
Out SOURCE Sat at 100mA
Measure VCC2 – VGATE
1.2
2.0
V
Out SINK Sat at 100mA
Measure VGATE – VPGnd;
1.0
1.5
V
Out Rise Time
1V < VGATE < 9V; VCC1 = VCC2 = 12V
30
50
ns
Out Fall Time
9V > VGATE > 1V; VCC1 = VCC2 = 12V
30
50
ns
Shoot-Through Current
Note 1
50
mA
VGATE Resistance
Resistor to LGnd
20
50
100
kΩ
VGATE Schottky
LGnd to VGATE @ 10mA
600
800
mV
s
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 = 0V; VSS = 0
0.50
0.95
1.10
V
VFFB SS Fault Disable
VGATE = Low
0.9
1.0
1.1
V
High Threshold
2.5
3.0
V
s
PWM Comparator
Transient Response
VFFB = 0 to 5V to VGATE = 9V to 1V;
100
125
ns
VCC1 = VCC2 = 12V
VFFB Bias Current
VFFB = 0V
0.3
µA
s
Supply Current
ICC1
No Switching
8.5
13.5
mA
ICC2
No Switching
1.6
3.0
mA
Operating ICC1
VFB = COMP = VFFB
813
mA
Operating ICC2
VFB = COMP = VFFB
25
mA
s
COFF
Normal Charge Time
VFFB = 1.5V; VSS = 5V
1.0
1.6
2.2
µs
Extension Charge Time
VSS = VFFB = 0
5.0
8.0
11.0
µs
Discharge Current
COFF to 5V; VFB >1V
5.0
mA
s
Time Out Timer
Time Out Time
VFB = VCOMP; VFFB = 2V;
10
30
50
µs
Record VGATE Pulse High Duration
Fault Mode Duty Cycle
VFFB = 0V
35
50
65
%
Note 1: Guaranteed by design, not 100% tested in production.



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