CS5155 Просмотр технического описания (PDF) - ON Semiconductor
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CS5155 Datasheet PDF : 18 Pages
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CS5155
ELECTRICAL CHARACTERISTICS (0°C < TA < +70°C; 0°C < TJ < +85°C; 8.0 V < VCC1 < 14 V; 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
Open Loop Gain
Unity Gain Bandwidth
VFB = 0 V
1.25 V < VCOMP < 4.0 V; Note 3
Note 3
−
0.3
1.0
μA
50
60
−
dB
500
3000
−
kHz
COMP SINK Current
COMP SOURCE Current
COMP CLAMP Current
COMP High Voltage
COMP Low Voltage
PSRR
VCC1 Monitor
Start Threshold
VCOMP = 1.5 V; VFB = 3.0 V; VSS > 2.0 V
VCOMP = 1.2 V; VFB = 2.7 V; VSS = 5.0 V
VCOMP = 0 V; VFB = 2.7 V
VFB = 2.7 V; VSS = 5.0 V
VFB = 3.0 V
8.0 V < VCC1 < 14 V @ 1.0 kHz; Note 3
Output switching
0.4
2.5
8.0
mA
30
50
70
μA
0.4
1.0
1.6
mA
4.0
4.3
5.0
V
−
160
300
mV
60
85
−
dB
3.75
3.90
4.05
V
Stop Threshold
Output not switching
3.70
3.85
4.00
V
Hysteresis
Start−Stop
−
50
−
mV
VGATE(H) and VGATE(L)
Out SOURCE Sat at 100 mA
Out SINK Sat at 100 mA
Out Rise Time
Measure VCC1 − VGATE(L); VCC2 − VGATE(H)
−
Measure VGATE(H) − VPGND; VGATE(L) − VPGND
−
1.0 V < VGATE(H) < 9.0 V; 1.0 V < VGATE(L) < 9.0 V;
−
VCC1 = VCC2 = 12 V
1.2
2.0
V
1.0
1.5
V
30
50
ns
Out Fall Time
9.0 V > VGATE(H) > 1.0 V; 9.0 V > VGATE(L) > 1.0 V;
−
VCC1 = VCC2 = 12 V
30
50
ns
Shoot−Through Current
Note 3
−
−
50
mA
Delay VGATE(H) to VGATE(L)
VGATE(H) falling to 2.0 V; VCC1 = VCC2 = 8.0 V;
−
VGATE(L) rising to 2.0 V
25
50
ns
Delay VGATE(L) to VGATE(H)
VGATE(L) falling to 2.0 V; VCC1 = VCC2 = 8.0 V;
−
VGATE(H) rising to 2.0 V
25
50
ns
VGATE(H), VGATE(L) Resistance
Resistor to LGND
20
50
100
kΩ
VGATE(H), VGATE(L) Schottky
LGND to VGATE(H) @ 10 mA
LGND to VGATE(L) @ 10 mA
−
600
800
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
VFFB SS Fault Disable
High Threshold
VFB = 0 V; VSS = 0
VGATE(H) = Low; VGATE(L) = Low
−
0.50
0.95
1.10
V
0.9
1.0
1.1
V
−
2.5
3.0
V
PWM Comparator
Transient Response
VFFB = 0 to 5.0 V to VGATE(H) = 9.0 V to 1.0 V;
−
100
125
ns
VCC1 = VCC2 = 12 V
VFFB Bias Current
VFFB = 0 V
−
0.3
−
μA
3. Guaranteed by design, not 100% tested in production.
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