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CS51022ED16 データシート(PDF) 4 Page - Cherry Semiconductor Corporation

部品番号 CS51022ED16
部品情報  Enhanced Current Mode PWM Controller
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メーカー  CHERRY [Cherry Semiconductor Corporation]
ホームページ  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS51022ED16 データシート(HTML) 4 Page - Cherry Semiconductor Corporation

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PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
4
Electrical Characteristics: Unless otherwise stated, specifications apply for -40°C < TA < 85°C, -40°C < TJ < 150°C,
3V < VC < 20V, 8.2V < VCC < 20V, RT = 12kΩ, CT = 390pF.
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
s
SLOPE Compensation
Charge Current
SLOPE = 2V
-63
-53
-43
µA
COMP Gain
Fraction of slope voltage added
0.095
0.100
0.105
V/V
to ISENSE (Note 1)
Discharge Voltage
SYNC = 0V
0.1
0.2
V
s
Current Sense
OFFSET Voltage
(Note 1)
0.09
0.10
0.11
V
Blanking Time
55
160
ns
Blanking Disable Voltage
Adjust VFB
1.8
2
2.2
V
Second Current Threshold Gain
1.21
1.33
1.45
V/V
ISENSE Input Resistance
5
kΩ
Minimum On Time
GATE High to Low
30
70
110
ns
Gain
(Note 1)
0.78
0.80
0.82
V/V
s
OV & UV Voltage Monitors
OV Monitor Threshold
2.4
2.5
2.6
V
OV Hysteresis Current
-10
-12.5
-15
µA
UV Monitor Threshold
1.38
1.45
1.52
V
UV Monitor Hysteresis
25
75
100
mV
s
SOFT START (SS)
Charge Current
SS = 2V
-70
-55
-40
µA
Discharge Current
SS = 2V
250
1000
µA
Charge Voltage, VSS
4.4
4.7
5
V
Discharge Voltage, VSS
0.25
0.27
0.30
V
Note 1: Guaranteed by Design, not 100% tested in production.
16L PDIP & SO Narrow
1
GATE
External power switch driver with 1.0A peak capability.
2ISENSE
Current sense amplifier input.
3
SYNC
Bi-directional synchronization. Locks to the highest frequency.
(CS51021/23)
3
SLEEP
Active high chip disable. In sleep mode, VREF and GATE are
(CS51022/24)
turned off.
4
SLOPE
Additional slope to the current sense signal. Internal current
source charges the external capacitor.
5
UV
Undervoltage protection monitor.
6
OV
Overvoltage protection monitor.


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