LX1692IDW MICROSEMI, LX1692IDW Datasheet - Page 2

• Manufacturer Part Number: LX1692IDW
• Description: CCFL DRVR 5.5V 20-Pin SOIC
• Manufacturer: MICROSEMI

Specifications of LX1692IDW

• Package: 20SOIC
• Driver Type: CCFL
• Maximum Operating Supply Voltage: 5.5 V

Copyright © 2004
Rev. 1.2, 12/20/2006
Supply Input Voltage(VDDP)............................................................................................. 6.6V
VIN_SNS .........................................................-0.3V to (VDDP+0.5V), not to exceed +6.6V
Digital Input (ENABLE) ................................... -0.3V to (VDDP+0.5V) , not to exceed +6.6V
Analog Inputs (ISNS, OV_SNS, OC_SNS)clamped to ±14V Max Peak Current ±100mA
Analog Inputs (BRITE_A, BRITE_D) ............. -0.3V to (VDDP +0.5V) , not to exceed +6.6V
Digital Outputs (
Analog Outputs (I_R, ICOMP, VCOMP)........ -0.3V to (VDDP + 0.5V) , not to exceed +6.6V
Maximum Operating Junction Temperature .....................................................................150°C
Storage Temperature Range....................................................................................-65 to 150°C
Peak Package Solder Reflow Temp.(40 seconds max. exposure) .........................260°C(+0, -5)
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect
Junction Temperature Calculation: T
The θ
above assume no ambient airflow.
Name
DW
PW
C_R
I_R
THERMAL RESISTANCE
THERMAL RESISTANCE
JA
Ground. Currents are positive into, negative out of specified terminal
TM
numbers are guidelines for the thermal performance of the device/pc-board system. All of the
Plastic SOIC 20-Pin
Plastic TSSOP 20-Pin
Lamp Frequency Programming Capacitor Pin – lamp running frequency is set by the combination of C_R and
I_R. The internal lamp current oscillator frequency can be forced to follow an external clock signal at this pin. In
this case, the programmed frequency must be lower than the external frequency. Minimum pulse width for
external synch signal is 1µsec. Maximum duty is 50%
Current Reference Resistor Input. Connects to an external resistor that determines the magnitude of internal
bias currents. The I_R pin is a DC reference voltage of 1V. This voltage cannot be used for other than its
intended function. The reference current established at this pin by connecting an external resistor is used to
charge a capacitor at the C_R pin. The nominal lamp frequency can be adjusted by varying this resistor value in
the range of 20K to 100K Ohms. (Note: C is in pF, R is in
Other reference currents derived from I_R are used for the digital dimming burst oscillator and the strike time
out function.
F
LAMP
AOUT, BOUT, COUT, DOUT
A B S O L U T E M A X I M U M R A T I N G S
=
C
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
242
C
_
R
×
⋅
-
-
10
R
JUNCTION TO
JUNCTION TO
I
_
T H E R M A L D A T A
3
R
J
= T
A
+ (P
F U N C T I O N A L P I N D E S C R I P T I O N
D
) -0.3V to (VDDP +0.5V) , not to exceed +6.6V
x θ
A
A
JA
MBIENT
MBIENT
).
Integrated Products Division
, θ
, θ
®
Microsemi
JA
JA
Description
.
Full Bridge Resonant CCFL Controller
K , Freq is in KHz).
85°C/W
Ω
99°C/W
P
RODUCTION
to
VIN_SNS
BRITE_A
BRITE_D
RoHS / Pb-free 100% Matte Tin Lead Finish
ENABLE
VIN_SNS
VCOMP
BRITE_A
BRITE_D
ENABLE
C_BST
VCOMP
D
VDDA
C_TO
C_BST
P A C K A G E P I N O U T
VDDA
C_TO
C_R
ATA
I_R
C_R
I_R
S
HEET
10
1
PW P
1
2
3
4
5
6
7
8
9
10
DW P
(Top View)
(Top View)
ACKAGE
ACKAGE
20
19
18
17
16
15
14
13
12
11
20
11
LX1692
VDDP
AOUT
BOUT
GND
COUT
DOUT
ISNS
OV_SNS
ICOMP
OC_SNS
VDDP
AOUT
BOUT
GND
COUT
DOUT
ISNS
OV_SNS
OC_SNS
ICOMP
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