CS5127
Absolute Maximum Ratings
Operating Junction Temperature, T
J
..................................................................................................................................... 150¡C
Storage Temperature Range, T
S
...................................................................................................................................-65 to 150¡C
ESD (Human Body Model).........................................................................................................................................................2kV
Lead Temperature Soldering: Reflow (SMD styles only).............................................60 sec. max above 183¡C, 230¡C peak
Lead Symbol
Lead Name
V
MAX
5.5V
5.5V
5.5V
5.5V
7.5V
5.5V
20V
V
MIN
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V DC,
-2.0V for
t < 50ns
0V
0V
-0.3V
-0.3V
-0.3V
I
SOURCE
5 mA
1mA
1mA
N/A
2mA
1mA
200mA DC,
1A peak
(t < 100µs)
25 mA
1A Peak,
200mA DC
1mA
150mA
(short circuit)
N/A
I
SINK
5 mA
1mA
1mA
N/A
50mA
1mA
200mA DC,
1A peak
(t < 100µs)
N/A
N/A
N/A
5mA
200mA DC,
1A peak
(t < 100µs)
SYNC
CT
RT
V
FB1
, V
FB2
COMP1, COMP2
V
FFB1
, V
FFB2
GATE1, GATE2
Oscillator Synchronization Input
Oscillator Integrating Capacitor
Oscillator Charge Current Resistor
Voltage Feedback Inputs
Error Amplifier Outputs
PWM Ramp Inputs
FET Gate Drive Outputs
LGnd
PGnd
ENABLE
V
REF
V
IN
Reference Ground and IC Substrate
Power Ground
Channel 2 Enable
Reference Voltage Output
Power Supply Input
0V
0V
5.5V
5.5V
20V
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
Reference Section
V
REF
Output Voltage
Line Regulation
Load Regulation
V
REF
Variation over Line, Load
and Temperature
Output Short Circuit Current
s
Oscillator Section
Oscillator Frequency Variation
over Line and Temperature
Maximum Duty Cycle
Sync Threshold
Sync Bias Current
Sync Propagation Delay
Room Temperature,
I
VREF
= 1mA, V
IN
= 12V
4.9
5.0
1
5.1
20
26
5.15
150
V
mV
mV
V
mA
1 mA < I
VREF
< 10 mA
4.85
30
15
100
175
80
0.8
V
SYNC
= 2.4V
V
SYNC
= 5.0V
210
90
1.6
170
430
230
245
98
2.4
250
750
kHz
%
V
µA
ns
2
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
