IMP527 IMP Inc, IMP527 Datasheet
IMP527
Available stocks
Related parts for IMP527
IMP527 Summary of contents
Page 1
... A disable pad (active low), accessible only on the die, can also be used to disable the driver. An internal circuit shuts down the switching regulator when the lamp drive voltage exceeds 180V peak-to-peak. This conserves power and extends battery life. The IMP527 is available in MicroSO and SO-8 packages and in die form. Block Diagram ...
Page 2
... Ordering Information IMP527EMA 0.9V to 2.5V IMP527ESA 0.9V to 2.5V IMP527/D* 0.9V to 2.5V IMP527/D1** 0.9V to 2.5V * Disable pad not active ** Disable pad active Absolute Maximum Ratings Supply Voltage and V DD RSW-OSC REL-OSC Storage Temperature Range . . . . . . . . . . . . . . . . – 65°C to +150°C Power Dissipation (SO package 400mW Power Dissipation (MicroSO package 300mW ...
Page 3
EL Lamp Drive Frequency 2400 2000 1600 1200 800 400 0 0 0.5 1.0 1.5 2.0 2.5 R (MΩ Lamp Drive Period 1. 25° ...
Page 4
... SW Capacitor C SW Inductor L 4 Positive voltage supply for the IMP527. Inductor L may be connected here separate supply. Switch-mode resistor pin. Switching frequency is determined by external resistor R connected between pin 2 and V DD Boost converter storage capacitor. The voltage across the EL lamp is equal to twice the voltage at C ...
Page 5
... Test Circuit Figure 1 shows the IMP527 configured to drive an EL lamp, represented as a 3nF capacitor OFF = – 0.1µF Note: 1. Larger values may be required depending upon supply impedance. * Optional Table 1. Notes. 2. Murata LQH4N331K04 (8.2 Ω max. DCR) Table 2 ...
Page 6
... Enable/Disable Operation Figure 2 shows how the IMP527 can be enabled via a logic gate that connects and disabled by connecting it to ground Ground OFF = – 0.1µF Note: 1. Murata part # LQH4N331K04 (DC resistance < 8.2 Ω Larger values may be required depending upon supply impedance. ...
Page 7
0.10mm e 0.004in © 2000 IMP, Inc ––––– A1 0.0020 A2 0.0295 b 0.0098 C 0.0051 D 0.1142 e 0.0256 BSC L E ...
Page 8
IMP, Inc. Corporate Headquarters 2830 N. First Street San Jose, CA 95134-2071 Tel: 408-432-9100 Fax: 408-434-0335 e-mail: info@impinc.com http://www.impweb.com The IMP logo is a registered trademark of IMP, ...