Electrical characteristics (*VCC=15V, RT=10kΩΩ, CT=3.3nF, TA=00C to +700C, unless
otherwise specified)
Characteristics Symbol Test Condition Min Typ Max Unit
Reference Section
Reference Output Voltege VREF TJ = 25°C, IREF = 1 mA 4.9 5.0 5.1 V
Line Regulation ∆VREF 12V ≤ VCC ≤ 25 V 6.0 20 mV
Load Regulation ∆VREF 1 mA ≤ IREF ≤ 20mA 6.0 25
Short Circit Output Current ISC TA = 25°C-100 -180 mA
Oscillator Section
Oscillation Freguency fTJ = 25°C47 52 57 KHz
Frequency Change with
Voltage ∆f/∆VCCF 12V ≤ VCC ≤ 25 V 0.05 1.0 %
Oscillator Amplitude V(OSC) 1.6 Vp-p
Error Amplifier Section
Input Bias Current IBIAS -0.1 -2 µA
Input Voltage VI(E.A) V1 = 2.5V 2.42 2.5 2.58 V
Open Loop Voltage Gain GVO 2V ≤ V0 ≤ 4V 65 90 dB
Power Supply Rejection Ratio PSRR 12V ≤ VCC ≤ 25 V 60 70
Output Sink Current ISINK V2 = 2.7V, V1 = 1.1V 27mA
Output Source Current ISOURCE V2 = 2.3V, V1 = 5V -0.5 -1.0 mA
High Output Voltage VOH V2 = 2.3V, RL = 15KΩ to GND 5.0 6.0 V
Low Output Voltage VOL V2 = 2.7V, RL = 15KΩ to PIN 8 0.8 1.1
Current Sense Section
Gain GV(Note 1 & 2) 2.85 3.0 3.15 V/V
Maximum Input Signal VI(MAX) V1 = 5V (Note1) 0.9 1.0 1.1 V
Power Supply Rejection Ratio PSRR 12V ≤ VCC ≤ 25 V (Note 1) 70 dB
Input Bias Current IBIAS -3.0 -10 µA
Output Section
Low Output Voltage VOL ISINK = 20 mA 0.08 0.4
ISINK = 200 mA 1.4 2.2 V
High Output Voltage VOH ISINK = 20 mA 13 13.5
ISINK = 200 mA 12 13.0
Rise Time tRTJ = 25°C, CL = 1nF (Note 3) 45 150 nS
Fall Time tFTJ = 25°C, CL = 1nF (Note 3) 35 150
Under−−Voltage Lockout Section
Start Theshold VTH(ST) 14.5 16.0 17.5 V
Min. Operating Voltage VOPR(min) 8.5 10 11.5 V
(After Turn On)
PWM Section
Max. Duty Cycle D(MAX) 95 97 100 %
Min. Duty Cycle D(MAX) 0
Total Standby Current
Start−Up Current IST 0.17 0.3 mA
Operating Supply Current ICC (OPR) V3 = V2 = 0V 14 17
Zener Voltage VZ30 38 V
* Adjust VCC above the start threshold before setting at 15V
Note 1: Parameter measured at trip point of lath with V2=0
Note 2: Gain defined as A=∆V1/∆V3 ; 0 ≤ V3 ≤ 0.8V
Note 3: These parameters, although guaranteed, are not 100% tested in production.