Application circuit diagram of pulse width modulator LZ210

Published:2012/9/25 21:51:00 Author:Ecco | Keyword: Application , pulse width modulator | From:SeekIC

LZ210 is a dedicated long cycle pulse width modulator circuit,and it can convertthe voltage amplitude into a corresponding pulse width variations, and it is used withmatching with zero crossing trigger.The electrical parameters are shownas following:Supply Voltage: DC +15 V.Supply Current : ≤ l2mA.Ramp rate : ≥ 8V ( test conditions : Vcc = 15V)Control voltage:a. 0 ~ +8 V b. -4 ~ +4 VC. -8 ~ 0V d. -8 ~ +8 VOscillation cycle oscillation cycle : When Vcc = 15V, RT = 100kΩ ( see Figure 2-26 ).T = 0.06 ~ 0.12 ms (C t = 200p)T = 9 ~ 76 ms (C t = 0.1μ)T = 1 ~ 800 ms (C t = 1μ)T = 900 ~ 6 400ms (C t = 10μ)T = 24 000 ~ 120 000ms (C t = 220μ)The LZ210 uses 8-pin dual in-line package, and it isshown in the figure.



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