ISL97672A
Block Diagram
V IN = 4.5V~26.5V
45V*, 6x50mA
VIN
(OPTIONAL Q1)
FAULT
10μH/1.5A
LX
4.7μF/50V
VDC
FLAG
EN
REG
OSC &
RAMP
COMP
BIAS
f SW
Σ =0
FAULT
FLAG
LOGIC
O/P SHORT
BOOST SW
FET
DRIVER
OVP
OVP
FAULT
FLAG
IMAX
ILIMIT
PGND
COMP
GM
AMP
FAULT/STATUS CONTROL
HIGHEST VF
STRING DETECT
OPEN CKT, SHORT
CKT DETECTS
CH0
CH1
CH5
RSET
+
-
REF
GEN
VSET
+
-
PWM0
0
TEMP
SENSOR
FAULT
FLAG
GND
REF_OVP
REF_VSC
+
-
PWM1
*V IN ≥ 12V
PWM
DIMMING
CONTROLLER
+
-
5
PWM5
FIGURE 2. ISL97672A BLOCK DIAGRAM
Ordering Information
Pin Configuration
PART
NUMBER
(Notes 1, 2, 3)
ISL97672AIRZ
PART
MARKING
672A
PACKAGE
(Pb-Free)
20 Ld 3x4 QFN
PKG.
DWG. #
L20.3x4
ISL97672A
(20 LD 3x4 QFN)
TOP VIEW
ISL97672AIRZ-EVALZ
Evaluation Board
20
19
18
17
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to Tech Brief TB347 for
details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special
Pb-free material sets, molding compounds/die attach materials, and
100% matte tin plate plus anneal (e3 termination finish, which is
RoHS compliant and compatible with both SnPb and Pb-free
soldering operations). Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
FAULT
VIN
EN
VDC
PWM
/FLAG
1
2
3
4
5
6
16
15
14
13
12
11
OVP
CH5
CH4
CH3
CH2
CH1
3. For Moisture Sensitivity Level (MSL), please see device information
page for ISL97672A . For more information on MSL, please see Tech
7
8
9
10
Brief TB363 .
2
FN7710.3
November 22, 2013
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