KA3882E/KA3883E
3
Electrical Characteristics (Continued)
(VCC = 15V, RT = 10KW, CT = 3.3nF, TA = 0°C to + 70 °C, Unless otherwise specified)
* Adjust VCC above the start threshold before setting at 15V
Notes :
1. These parameters, although guaranteed, are not 100% tested in production.
2. Parame ter me asured at trip point of latch with VFB = 0V.
3. Gain def ine d as:
Parameter Symbol Conditions Min. Typ. Max. Unit
ERROR AMPLIFIER SECTION
Input Voltage VI VPIN1 = 2.5V 2.42 2.50 2.58 V
Input Bias Current IBIAS VFB=0V - -0.3 - 2 uA
Open Loop Gain GVO VO = 2V to 4V (NOTE 1) 65 90 - dB
Unity Gain Bandwidth GBW TJ= 25°C (NOTE 1) 0.7 1 - MHz
PSRR PSRR VCC = 12V to 25V (NOTE 1) 60 70 - dB
Output Sink Current ISINK VPIN2 = 2.7V
VPIN1 = 1.1V 26-mA
Output Source Current ISOURCE VPIN2 = 2.3V
VPIN1 = 5.0V -0.5 -0.8 - mA
Output High Voltage VOH VPIN2 = 2.3V
R1 = 15KΩ to GND 56-V
Output Low Voltage VOL VPIN2 = 2.7V
R1 = 15KΩ to Vref -0.71.1V
OUTPUT SECTION
Output Low Level VOL ISINK = 20mA - 0.1 0.4 V
ISINK = 200mA - 1.5 2.2 V
Output High Level VOH ISOURCE = 20mA 13 13.5 - V
ISOURCE = 200mA 12 13.5 - V
Rise Time tR TJ = 25°C, C1 = 1nF (NOTE 1) - 40 100 ns
Fall Time tF TJ = 25°C, C1 = 1nF (NOTE 1) - 40 100 ns
Output Voltage Swing Limit VOLIM VCC = 27V, C1 = 1nF - 22 - V
UNDER VOLTAGE LOCKOUT SECTION
Start Threshold VTH KA3882E 15 16 17 V
KA3883E 7.8 8.4 9.0 V
Min. Operating Voltage
( After turn on ) VTL KA3882E 9 10 11 V
KA3883E 7.0 7.6 8.2 V
PWM SECTION
Maximum Duty Cycle DMAX KA3882E/KA3883E 94 96 100 %
Minimum Duty Cycle DMIN ---0%
TOTAL STANDBY CURRENT
Start-Up Current IST --0.20.4mA
Operating Supply Current ICC VPIN2 = VPIN3 = 0V - 11 17 mA
VCC Zener Voltage VZ ICC = 25mA - 29 - V
GV∆VCOMP
∆VSENSE
------------------------- OV
SENSE 0.8V≤≤;=