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CS52843ED8 Datasheet(PDF) 3 Page - Cherry Semiconductor Corporation |
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CS52843ED8 Datasheet(HTML) 3 Page - Cherry Semiconductor Corporation |
3 / 6 page 3 Package Pin Description PACKAGE PIN # PIN SYMBOL FUNCTION PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 8L 14L SO Narrow SO Narrow 1 1 COMP Error amp output, used to compensate error amplifier. 23 VFB Error amp inverting input. 3 5 Sense Noninverting input to Current Sense Comparator. 4 7 OSC Oscillator timing network with Capacitor to Ground, resistor to VREF. 5 8 Gnd Ground. 5 9 Pwr Gnd Output driver Ground. 610 VOUT Output drive pin. 711 VCCPwr Output driver positive supply. 712 VCC Positive power supply. 814 VREF Output of 5V internal reference. 2,4,6,13 NC No Connection. Electrical Characteristics: -40 ≤ TA ≤ 85˚C; VCC = 15V (Note 1); RT = 680Ω; CT = .022µF for triangle mode, RT = 10kΩ; CT = 3.3nF sawtooth mode unless otherwise stated. Rise Time TJ = 25˚C, CL = 1nF (Note 1) 50 150 ns Fall Time TJ=25˚C, CL=1nF (Note 1) 50 150 ns Output Leakage UVLO Active VOUT = 0 -.01 -10.0 µA s Total Standby Current Start-Up Current 300 500 µA Operating Supply Current VFB=VSense=0V RT=10kΩ, CT=3.3nF 11 17 mA VCC Zener Voltage ICC=25mA 34 V s Undervoltage Lockout Section Start Threshold 7.8 8.4 9.0 V Min. Operating Voltage After Turn On 7.0 7.6 8.2 V Notes: 1.These parameters, although guaranteed, are not 100% tested in production. 2. Parameter measured at trip point of latch with VFB=0. 3. Gain defined as: A = ; 0 ≤ VSense ≤ 0.8V. ∆VCOMP ∆VSense |
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