CS5111 데이터 시트보기 (PDF) - Cherry semiconductor
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CS5111
Cherry semiconductor
CS5111 Datasheet PDF : 10 Pages
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Electrical Characteristics: 5V ≤ VIN ≤ 26V and -40°C ≤ TJ ≤ 150°C, COUT=100µF(ESR ≤ 8Ω), CDelay = 0.1µF, RBIAS = 64.9k,
COSC = 390 pF, CCOMP = 0.1µF unless otherwise specified.
PARAMETER
s Watchdog Input (WDI)
VIH
VIL
Hysteresis
Pull-Up Resistor
Low Threshold
Floating Input Voltage
WDI Pulse Width
TEST CONDITIONS
Peak WDI needed to activate RESET
Note 1
WDI=0V
MIN
TYP
0.8
25
50
20
50
6.25
8.78
3.5
MAX
2.0
100
11.0
5
UNIT
V
V
mV
kΩ
ms
V
µs
s Switcher Section
Minimum Operating
Input Voltage
Switching Frequency
Refer to Figure 1d.
Switch Saturation Voltage
Output Current Limit
ISW = 1.4A
Max Switching Frequency VSW = 7.5V with 50Ω load,
Refer to Figure 1d.
VFB1 Regulation Voltage
VFB2 Regulation Voltage
VFB1, VFB2 Input Current
Oscillator Charge Current
Oscillator Discharge Current
CDelay Charge Current
Switcher Max Duty Cycle
Current Sense Amp Gain
Error Amp DC Gain
VFB1 = VFB2 = 5V
COSC = 0V
COSC = 4V
CDelay = 0V
VSW = 5V with 50Ω load,
VFB1 = VFB2 = 1V
ISW = 2.3A
Error Amp Transconductance
80
0.7
1.4
120
1.206
1.206
35
270
35
72
95
1.1
1.25
1.25
40
320
40
85
7
67
2700
5.0
V
110
kHz
1.6
V
2.5
A
kHz
1.294
V
1.294
V
1
µA
45
µA
370
µA
45
µA
95
%
dB
µA/V
s ENABLE Input
VIL
VIH
Hysteresis
Input Impedance
0.8
1.24
1.30
60
10
20
V
2.0
V
mV
40
kΩ
s Select Input
VIL (Selects VFB1)
VIH (Selects VFB2)
SELECT Pull-Up
Floating Input Voltage
4.9 ≤ VLIN ≤ 5.1
4.9 ≤ VLIN ≤ 5.1
SELECT = 0V
Note 1: Guaranteed by Design, not 100% tested in production.
0.8
1.25
1.25
10
24
3.5
4.5
V
2.0
V
50
kΩ
V
3
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