ISL6425 Datasheet, PDF (4/12 Pages) Intersil Corporation – Single Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-top Box Designs

Block Diagram
7
10
E PAD
11
13
12
14
COUNTER
GATE
OVERCURRENT
PROTECTION
LOGIC SCHEME 1
OLF
DCL
PWM
OC
LOGIC
Q
S
CLK
SEL18V
PGND
CS
COMP
CS ^ILIM
AMP
∑
SLOPE
COMPENSATION
FB
VREF
VSW
BAND GAP
REF VOLTAGE
REF
VOLTAGE
ADJ
ISEL
EN
ENT
OLF
I²C
INTERFACE
SDA
ADDR
SCL
OTF
LLC VSEL
DCL
CLK ^OSC.
220kHz
BGV
÷ 10 AND
WAVE SHAPING
TONE
INJ
CKT
22kHz
TONE
20
VOUT
+
-
OTF
THERMAL
SHUTDOWN
28
VCC
ON CHIP
LINEAR
UVLO
6
SGND
POR
SOFT-START
INT 5V
SOFT-START
EN
CHARGE PUMP
CPSWOUT
9
21
18
25
SDA
15
ADDR
16
SCL
17
ENT
DSQIN
19
CPVOUT
27
CPSWIN
26