Data Sheet

KA3525A
3
Electrical Characteristics
(Continued)
(V
CC
= 20V, T
A
= 0 to +70°C, unless otherwise specified)
Note :
1. These parameters. although guaranteed over the recommended operating conditions, are not 100% tested in production
2. Tested at f
OSC
=40kHz (R
T
=3.6K, C
T
=0.01uF, R
I
= 0Ω)
Parameter Symbol Conditions Min. Typ. Max. Unit
ERROR AMPLIFIER SECTION (V
CM
= 5.1V)
Input Offset Voltage V
IO
- -1.510mV
Input Bias Current I
BIAS
- -110µA
Input Offset Current I
IO
- -0.11µA
Open Loop Voltage Gain G
VO
R
L
≥ 10MΩ 60 80 - dB
Common Mode Rejection Ratio CMRR V
CM
= 1.5 to 5.2V 60 90 - dB
Power Supply Rejection Ratio PSRR V
CC
= 8 to 3.5V 50 60 - dB
PWM COMPARATOR SECTION
Minimum Duty Cycle D
(MIN)
- --0%
Maximum Duty Cycle D
(MAX)
- 45 49 - %
Input Threshold Voltage (Note2) V
TH1
Zero Duty Cycle 0.7 0.9 - V
Input Threshold Voltage (Note2) V
TH2
Max Duty Cycle - 3.2 3.6 V
SOFT-START SECTION
Soft Start Current I
SOFT
V
SD
= 0V, V
SS
= 0V 25 51 80 µA
Soft Start Low Level Voltage V
SL
V
SD
= 25V - 0.3 0.7 V
Shutdown Threshold Voltage V
TH(SD)
- 0.9 1.3 1.7 V
Shutdown Input Current I
N(SD)
V
SD
= 2.5V - 0.3 1 mA
OUTPUT SECTION
Low Output Voltage I V
OL I
I
SINK
= 20mA - 0.1 0.4 V
Low Output Voltage II V
OL II
I
SINK
= 100mA - 0.05 2 V
High Output Voltage I V
CH I
I
SOURCE
= 20mA 18 19 - V
High Output Voltage II V
CH II
I
SOURCE
= 100mA 17 18 - V
Under Voltage Lockout V
UV
V
8
and V
9
= High 678V
Collector Leakage Current I
LKG
V
CC
= 35V - 80 200 µA
Rise Time (Note1) t
R
C
L
= 1uF, T
J
= 25°C - 80 600 ns
Fall Time (Note1) t
F
C
L
= 1uF, T
J
= 25°C - 70 300 ns
STANDBY CURRENT
Supply Current I
CC
V
CC
= 35V - 12 20 mA