lx1672 Microsemi Corporation, lx1672 Datasheet - Page 2

• Manufacturer Part Number: lx1672
• Description: Multiple Output Loadshare Pwm
• Manufacturer: Microsemi Corporation

Copyright © 2000
Rev. 1.0, 2005-08-10
Supply Voltage (V
Driver Supply Voltage (V
Current Sense Inputs (V
Error Amplifier Inputs (FB
Input Voltage (SS / Enable, LDDIS) .................................................-0.3V to5.5V
Output Drive Peak Current Source (HO
Output Drive Peak Current Sink (HO
Operating Junction Temperature.................................................................. 150°C
Storage Temperature Range...........................................................-65°C to 150°C
Peak Package Solder Reflow Temp.(40 second max. exposure) .... 260°C (+0, -5)
Note: Exceeding these ratings could cause damage to the device. All voltages are with
Junction Temperature Calculation: T
The θ
All of the above assume no ambient airflow.
PW
LQ
THERMAL RESISTANCE
THERMAL RESISTANCE
JA
x= Denote Phases 1 & 2
respect to Ground. Currents are positive into, negative out of specified
terminal.
TM
numbers are guidelines for the thermal performance of the device/pc-board system.
Plastic TSSOP 28-Pin
Plastic MLPQ 38-Pin
A B S O L U T E M A X I M U M R A T I N G S
CC
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
) DC .................................................................-0.3V to 5.5V
SX
-
-
C
, C
JUNCTION TO
JUNCTION TO
x
X
, V
T H E R M A L D A T A
, RF
SX
CCL
) ....................................................... -0.3V to 12V
2
, LDFB)........................................-0.3V to 5.5V
J
) DC ............................................-0.3V to 12V
= T
x
A
, LO
+ (P
x
, LO
A
A
MBIENT
MBIENT
x
D
) .......................................1A (500ns)
x θ
x
)....................................1A (500ns)
Integrated Products Division
JC
).
, θ
, θ
®
Microsemi
JA
JA
Multiple Output LoadSHARE™ PWM
85°C/W
35°C/W
P
RODUCTION
LDDIS
DGND
LDGD
AGND
LDFB
RoHS / Pb-free 100% Matte Tin Lead Finish
LDDIS
DGND
DIS2
AGND
LDGD
RSVD
HO2
PG2
EO2
LO2
SS2
RF2
FB2
CS2
LDFB
D
HO2
VC2
SS2
FB2
EO2
RF2
ATA
P A C K A G E P I N O U T
(N.C. – No Internal Connection
10
11
12
1
2
3
4
5
6
7
8
9
S
13
38
10
11
12
13
14
1
2
3
4
5
6
7
8
9
HEET
Connect Bottom to
14
N/U – Not Used)
37
PW P
(Top View)
Power GND
36
15
ACKAGE
35
16
17
34
33
18
19
32
28
27
26
25
24
23
22
21
20
19
18
17
16
15
LX1672
31
30
29
28
27
26
25
24
23
22
21
20
VCC
N.C.
VCCL
DIS1
PWGD
N.C.
DIS2
N.C.
N.C.
N.C.
N.C.
N.C.
VC2
VC1
HO1
LO1
PG1
VCCL
VCC
VS1
CS1
EO1
FB1
SS1
DIS1
VS2
Page 2