imp803 ETC-unknow, imp803 Datasheet
imp803
Available stocks
Related parts for imp803
imp803 Summary of contents
Page 1
... IMP803. The inductor may be driven from an independent, unregulated supply voltage in dual supply applications. An internal circuit shuts down the switching regulator when the lamp drive voltage reaches 180V peak-to-peak. This conserves power and extends battery life. The IMP803 is available in MicroSO and SO-8 packages and in die or wafer form. Block Diagram 1 V ...
Page 2
... Pin Configuration IMP803 R 2 SW-OSC Ordering Information 803 IMP LG 2.0V to 6.5V 803 IMP IMA 2.0V to 6.5V IMP 803 SX* 2.0V to 6.5V IMP 803/ D1** 2.0V to 6.5V * Disable pad not active ** Disable pad active Add /T to ordering part number for Tape and Reel. ...
Page 3
vs. Inductor Value CS IN 100 200 400 600 Inductor (µ vs 100 L = 470µ ...
Page 4
... The IMP803 generates high voltages and caution should be exercised. 4 Positive voltage supply for the IMP803. Inductor L may be connected here separate unregulated supply. Switch-mode resistor pin. Switching frequency is determined by an external resistor, R Boost converter storage capacitor. The voltage across the EL lamp is equal to twice the voltage at C ...
Page 5
... Test and Application Circuit, 3.0V Figure 1 shows the IMP803 configured to drive a 3-square-inch EL lamp, represented as a 10nF capacitor. With a 3.0V input, the EL lamp will be driven to moderate brightness OFF = 0V 1 560µ 3.0V IN – 2 0.1µF Note: 1. Murata part # LQH4N561K04 (DC resistance <14.5 Ω Larger values may be required depending upon supply impedance. ...
Page 6
... V = 6.0V IN – 0.1µF Note: 1. Murata part # LQH4N561K04 (DC resistance <14.5 Ω Larger values may be required depending upon supply impedance. Enable/Disable Operation Figure 4 shows that the IMP803 can be enabled via a logic gate that connects and disabled by connecting it to ground OFF = ...
Page 7
... Dual Supply Operation with 1.5V Battery The IMP803 can also be operate from a single battery cell when a regulated voltage higher than 2.0V is also available. This dual supply configuration, shown in Figure 5, uses the regulated voltage to operate the IMP803 while the energy for the high- voltage boost circuit comes from the battery. ...
Page 8
Package Dimensions 0.10mm e 0.004in A1 b IMP, Inc. Corporate Headquarters 2830 N. First Street San Jose, ...