ISL6422 INTERSIL [Intersil Corporation], ISL6422 Datasheet - Page 3

• Manufacturer Part Number: ISL6422
• Description: Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs
• Manufacturer: INTERSIL [Intersil Corporation]

20, 21
Block Diagram
NOTE:
15
23
22
14
24
12
19
11
2
1. Pinouts shown are for the QFN package.
AGND
TDOUT1
GATE1
PGND1
VSW1
VOUT1
VCC
SGND
COUNTER
CS1
TDIN1
DECODER
TONE
SOFT-START
10
CS
AMP
ON CHIP
LINEAR
UVLO
POR
LOGIC SCHEME 1
ILIM1
OVERCURRENT
PROTECTION
TXT1
Q
LOGIC
COMPENSATION
PWM
INT 5V
SOFT-START
EN1/EN2
S
∑
SLOPE
CLK1
OLF1
DCL1
OC1
16
-
-
VREF1
17
SELVTOP1
+
-
REF VOLTAGE
BAND GAP
VOLTAGE
ADJ1
REF
18
SDA
ISEL1L AND
ISEL1H
ENT1
OTF
EN1
BGV
5
TONE
CKT 1
VTOP1 VBOT1
INJ
SCL
6
9
ADDR1
CLK1
8
EXT TONE CKT
OLF1
WAVE SHAPING
ENT1
INTERFACE
DIV AND
1.1MHz
TONE
OSC.
FLT
I
INT
1
2
4
C
OLF2
CLK2
ENT2
ADDR0
VBOT2 VTOP2
7
ISEL2L AND
33
OUVF11
CKT 2
TONE
INJ
ISEL2H
OUVF2
ENT2
35
DCL
EN2
OTF
OC2
DCL2
OLF2
SHUTDOWN
VOLTAGE
THERMAL
CLK2
BGV
ADJ2
REF
+
-
LOGIC SCHEME 2
OVERCURRENT
-
PROTECTION
LOGIC
PWM
COMPENSATION
S
VREF2
CHARGE PUMP
Q
SLOPE
∑
-
27
CPVOUT
ILIM2
AMP
26
DECODER
CS
SELVTOP2
TONE
CPSWOUT
COUNTER
CPSWIN
TDOUT2
PGND2
VOUT2
GATE2
VSW2
TDIN2
CS2
39
40
36
34
37
30, 31
28
25
29