CS5156
ELECTRICAL CHARACTERISTICS (0°C < TA < +70°C; 0°C < TJ < +85°C; 8.0 V < VCC1 < 14 V; 5.0 V < VCC2 < 14 V;
DAC Code: VID4 = VID2 = VID1 = VID0 = 1; VID3 = 0; CVGATE = 1.0 nF; COFF = 330 pF; CSS = 0.1 μF, unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
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
50
60
−
500
3000
−
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
30
50
70
0.4
1.0
1.6
4.0
4.3
5.0
−
160
600
60
85
−
3.75
3.90
4.05
Stop Threshold
Output not switching
3.70
3.85
4.00
Hysteresis
Start−Stop
−
50
−
VGATE
Out SOURCE Sat at 100 mA
Out SINK Sat at 100 mA
Out Rise Time
Out Fall Time
Shoot−Through Current
Measure VCC2 − VGATE
Measure VGATE − VPGND
1.0 V < VGATE < 9.0 V; VCC1 = VCC2 = 12 V
9.0 V > VGATE > 1.0 V; VCC1 = VCC2 = 12 V
Note 3
−
1.2
2.0
−
1.0
1.5
−
30
50
−
30
50
−
−
50
VGATE Resistance
VGATE Schottky
Soft Start (SS)
Resistor to LGND.
LGND to VGATE @ 10 mA
20
50
100
−
600
800
Charge Time
−
1.6
3.3
5.0
Pulse Period
−
25
100
200
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 = Low
−
0.50
0.95
1.10
0.9
1.0
1.1
−
2.5
3.0
PWM Comparator
Transient Response
VFFB = 0 to 5.0 V to VGATE = 9.0 V to 1.0 V;
VCC1 = VCC2 = 12 V
−
100
125
VFFB Bias Current
VFFB = 0 V
3. Guaranteed by design, not 100% tested in production.
−
0.3
−
Unit
μA
dB
kHz
mA
μA
mA
V
mV
dB
V
V
mV
V
V
ns
ns
mA
kΩ
mV
ms
ms
%
V
V
V
ns
μA
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