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MC34844 Scheda tecnica(PDF) 7 Page - Freescale Semiconductor, Inc |
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MC34844 Scheda tecnica(HTML) 7 Page - Freescale Semiconductor, Inc |
7 / 37 page Analog Integrated Circuit Device Data Freescale Semiconductor 7 34844 ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Line Regulation (7) VIN=7.0V to 28V IOUT/VIN -0.2 - 0.2 %/V Load Regulation (7) VLED = 8.0V to 65V (all Channels) IOUT/VLED -0.2 - 0.2 %/V Slope compensation voltage ramp RSLOPE = 68KΩ VSLOPE - 0.49 - V/ μs Current Sense Amplifier Gain ACSA - 9.0 - Current Sense Resistor RSENSE - 22 - m Ω OTA Transconductance GM - 200 - μS Transconductance Sink and Source Current Capability ISS - 100 - μA Output Voltage Precharge VHOLD 0.45 0.5 0.55 V FAIL PIN Off-state Leakage Current VFAIL = 5.5V IFAIL_LEAK - - 5 μA On-state Voltage Drop ISINK = 4.0mA VOL - - 0.4 V Table 3. Static Electrical Characteristics (continued) Characteristics noted under conditions VIN = 12V, VOUT = 42V, ILED = 50mA, PWM = VDC1, M/~S = VDC1, PIN & NIN = VDC1, -40 °C ≤ TA ≤ 105°C, PGND = 0V, unless otherwise noted. Characteristic Symbol Min Typ Max Unit Notes 5. This output is for internal use only and not to be used for other purposes 6. Minimum and Maximum output voltages are dependent on Min/Max duty cycle condition. 7. Guaranteed by design |
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