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CS52845EDR14 датащи(PDF) 3 Page - Cherry Semiconductor Corporation |
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CS52845EDR14 датащи(HTML) 3 Page - Cherry Semiconductor Corporation |
3 / 6 page 3 Package Pin Description PACKAGE PIN # PIN SYMBOL FUNCTION Electrical Characteristics: Unless otherwise stated, specifications apply for -40 ≤ TA ≤ 85˚C; VCC = 15V (Note 1); RT = 10kΩ; CT = 3.3nF for sawtooth mode. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT s Total Standby Current Start-Up Current 0.5 1.0 mA Operating Supply Current VFB=VSense=0V RT=10kΩ, CT=3.3nF 11 17 mA VCC Zener Voltage ICC=25mA 34 V s PWM Section Maximum Duty Cycle 46 48 50 % Minimum Duty Cycle 0 % 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. Adjust VCC above the start threshold before setting at 15V. 3. Parameter measured at trip point of latch with VFB=0. 2.These parameters, although guaranteed, are not 100% tested in production. 4. Gain defined as: A = ; 0 ≤ VSense ≤ 0.8V. ∆VCOMP ∆VSense 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 9 Gnd Ground. 5 8 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. |
Аналогичный номер детали - CS52845EDR14 |
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Аналогичное описание - CS52845EDR14 |
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