AME9001 Datasheet, PDF (1/27 Pages) Analog Microelectronics – CCFL BACKLIGHT CONTROLLER

AME, Inc.
AME9001
n General Description
The AME9001 controller provides a cost efficient means
to drive single or multiple cold cathode fluorescent lamps
(CCFL). Specifically the AME9001 drives 3 external
MOSFETs that, in turn, drive a wirewound transformer
that is coupled to the CCFL.
The AME9001 includes features such as soft start, duty
cycle dimming control, and fault detection. It is designed
to work with input voltages from 7V up to 24V. When
disabled the circuit goes into a zero current mode.
For applications that use a piezoelectric transformer
please look at the AME9000.
n Features
l Small package: 24 pin QSOP
l Drives multiple tubes
l Automatically checks for common fault
conditions
l 7.0V < Vbatt < 24V
l Low component count
l Low Idd < 3.5mA
l <1uA shutdown mode
CCFL Backlight Controller
n Pin Configuration
24 23 22 21 20 19 18 17 16 15 14 13
AME9001
1 2 3 4 5 6 7 8 9 10 11 12
AME9001
24PIN QSOP
1. VREF
2. CE
3. SSC
4. RDELTA
5. FAULTB
6. RT2
7. VSS
8. OVP
9. CS
10.CSCOMP
11.CSDET
12.NC
13. OUTC
14. OUTAPB
15. OUTA
16. VBATT
17. VDD1
18. VDD
19. CT1
20. FB
21. COMP
22. BRIGHT
23. SSV
24. PNP
n System Block Diagram
Controller
External
Components
CCFL Array
n Applications
l Notebook computers
l LCD/TFT displays
AME
9001
+
Resistors
Capa+citors
LIGHT
N
1