CS5127
Electrical Characteristics: 0¡C < T
A
< 70¡C; 0¡C < T
J
< 125¡C; 9.4V < V
IN
< 20V; C
T
= 330 pF; R
T
= 27k�½;
unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s
Error Amplifiers
V
FB
Reference Voltage
Input Bias Current
Open Loop Gain
Unity Gain Bandwidth
PSRR
COMP Source Current
COMP Sink Current
COMP Output Low Voltage
s
PWM Comparators
V
FFB
Bias Current
Propagation Delay
Common Mode
Maximum Input Voltage
s
ENABLE Lead
ENABLE High Threshold
ENABLE Bias Current
s
Gate Driver Outputs
Output Low Saturation Voltage
Output High Saturation Voltage
Output Voltage under Lockout
Output Rise Time
Output Fall Time
s
Undervoltage Lockout
Turn On Threshold
Turn Off Threshold
s
Supply Current
Start Up Current
Operating Current
I
GATE
= 20 mA
I
GATE
= 100 mA
I
GATE
= 20 mA
I
GATE
= 100 mA
V
IN
= 6V, I
GATE
= 1 mA
no load
no load
0.1
0.25
1.5
1.6
0.1
30
10
0.4
2.50
2.0
3.0
0.2
V
V
V
V
V
ns
ns
channel 2 enabled
V
ENABLE
= 0
1.5
100
2.5
250
3.5
400
V
µA
V
FFB
= 0
V
FFB
rising to V
GATE
falling
2.9
2.0
100
3.3
20
250
µA
ns
V
V
COMP
= V
VFB
V
FB
= 1.275V
1.245
1.275
0.1
85
1.0
80
1.3
16
0.85
1.300
1.0
V
µA
dB
MHz
dB
mA
mA
V
f = 120Hz
V
COMP
= 3V, V
VFB
= 1.1V
V
COMP
= 1.2V, V
VFB
= 1.45V
V
VFB
= 1.45V, I
COMP
= 0.3 mA
0.9
10
0.50
2.0
24
1.00
7.4
6.8
8.4
7.8
9.4
8.8
V
V
V
IN
= 6V
V
CT
= 0V, no load
0.4
17.5
0.8
25
mA
mA
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
