ISL6405 Intersil Corporation, ISL6405 Datasheet - Page 3

• Manufacturer Part Number: ISL6405
• Description: Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-top Box Designs
• Manufacturer: Intersil Corporation

Block Diagram
11
13
12
14
20
28
10
7
9
COUNTER
GATE1
PGND1
CS1
COMP1
FB1
VSW1
VO1
VCC
SGND
SOFT-START
CS
AMP
8
ON CHIP
LINEAR
UVLO
POR
LOGIC SCHEME 1
OVERCURRENT
ILIM1
PROTECTION
Q
LOGIC
COMPENSATION
PWM
INT 5V
SOFT-START
EN1/EN2
S
∑
SLOPE
CLK1
OLF1
DCL
OC1
-
-
VREF1
+
-
REF VOLTAGE
BAND GAP
VOLTAGE
21
ADJ1
REF
ISEL1
EN1
ENT1
OTF
BGV
18
CKT 1
TONE
LLC1
INJ
SDA
15
CLK1
VSEL1
WAVE SHAPING
INTERFACE
19
220kHZ
÷ 10 &
OSC.
ENT1
OLF
I
22kHZ
TONE
2
ENT2
C
23
VSEL2
CLK2
ADDR
16
LLC2
24
CKT 2
TONE
INJ
SCL
17
ISEL2
ENT2
DCL
EN2
OTF
OC2
OLF2
DCL
SHUTDOWN
VOLTAGE
THERMAL
CLK2
ADJ2
BGV
REF
+
-
LOGIC SCHEME 2
OVERCURRENT
-
LOGIC
PROTECTION
PWM
COMPENSATION
S
VREF2
Q
SLOPE
CHARGE PUMP
∑
-
ILIM2
25
CPSWOUT
AMP
CS
COUNTER
CPVOUT
CPSWIN
COMP2
PGND2
GATE2
VSW2
VO2
CS2
FB2
22
27
26
4
5
6
2
3
1