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LT1236 Datasheet(PDF) 4 Page - Linear Technology |
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LT1236 Datasheet(HTML) 4 Page - Linear Technology |
4 / 12 page 4 LT1236 ELECTRICAL C C HARA TERISTICS V IN = 15V, IOUT = 0, TA = 25°C, unless otherwise noted. realized by preconditioning the IC with a 100-200 hour, 125 °C burn in. Long term stability will also be affected by differential stresses between the IC and the board material created during board assembly. Temperature cycling and baking of completed boards is often used to reduce these stresses in critical applications. Note 7: Hysteresis in output voltage is created by package stress that differs depending on whether the IC was previously at a higher or lower temperature. Output voltage is always measured at 25 °C, but the IC is cycled to 50 °C or 0°C before successive measurements. Hysteresis is roughly proportional to the square of temperature change. Hysteresis is not normally a problem for operational temperature excursions, but can be significant in critical narrow temperature range applications where the instrument might be stored at high or low temperatures. CC HARA TERISTICS A TYPICALPERFOR CE Ripple Rejection INPUT VOLTAGE (V) 0 85 90 95 100 105 10 20 30 40 LT1236 G01 110 115 515 25 35 f = 150Hz LT1236-5 LT1236-10 FREQUENCY (Hz) 10 90 110 130 120 100 80 60 100 1k 10k LT1236 G02 70 50 VIN = 15V COUT = 0 LT1236-5 LT1236-10 Ripple Rejection Minimum Input/Output Differential, LT1236-10 OUTPUT CURRENT (mA) 0 1.2 1.6 16 LT1236 G03 0.8 0.4 0 4 8 12 20 1.0 1.4 0.6 0.2 14 2 6 10 18 TJ = 125 °C TJ = –55 °C TJ = 25 °C Start-Up (Series Mode) TIME ( µs) 3 4 6 7 8 13 10 2 6 8 LT1236 G04 5 11 12 9 04 10 12 14 LT1236-10 LT1236-5 VIN = 0V TO 12V Start-Up (Shunt Mode), LT1236-10 Output Voltage Noise Spectrum FREQUENCY (Hz) 100 200 250 350 400 10 1k 1M LT1236 G06 0 100 300 150 50 LT1236-10 LT1236-5 TIME ( µs) 9 10 11 48 LT1236 G05 8 7 02 610 12 6 5 LT1236-10 IN GND OUT NC 1k VOUT 0V VOUT + 2V |
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