MIC2569
CableCARD™ Power Switch
General Description
MIC2569 is designed to supply power to OpenCable™
systems and CableCARD™ hosts. These CableCARDs
are also known as Point of Distribution (POD) cards.
MIC2569 supports both Single and Multiple stream cards
through a simple to control parallel interface. All voltage
switching is soft-start at turn-on, and break-before-make
when changing between different voltage supplies.
Built in current limiting protects all V
CC
and V
PP
output lines
of the host system from card faults and accidental short
circuits. MIC2569 provides a FAULT/ signal to indicate an
over-current or fault condition exists and is equipped with
internal thermal monitoring circuitry to protect the device
itself in the event of a sustained over-current condition.
MIC2569 is offered in a space saving 16 pin QSOP
packaging.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
110 mΩ maximum V
CC
on resistance
400 mΩ maximum V
PP
on resistance
3.0V to 3.6V for the 3.3V
IN
operating range
3.0V to 5.5V for the 5V
IN
operating range
1.3A minimum V
CC
current limit
150mA minimum V
PP
current limit (150mA each)
Compact 16-pin QSOP packaging
Operating temperatures from –40°C to +85°C
Low quiescent current
Soft start turn-on
Break-before-make voltage switching
Short-circuit protection with thermal shutdown
Input under voltage lock-out (UVLO)
ESD protection
No external components required
Applications
•
Satellite / Cable / DVR / Television
set top boxes
•
Video recorders
•
Game consoles
___________________________________________________________________________________________________________
Typical Application
OpenCable Power Switch
CableCARD is a trademark of CableLabs, Inc.
OpenCable is a trademark of Cable Television Laboratories, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
September 2007
M9999-092507-C
(408) 944-0800
Micrel, Inc.
MIC2569
Ordering Information
Part Number
MIC2569YQS
Marking
MIC2569YQS
Pb-Free
Yes
Junction Temp.
(1)
Range
–40°C to +85°C
Package
16-pin QSOP
Pin Configuration
16-Pin QSOP (QS)
September 2007
2
M9999-092507-C
(408) 944-0800
Micrel, Inc.
MIC2569
Pin Description
Pin Number
1
2
3
4
5
Pin Name
GND
NIC
3.3VIN
5VIN
3.3VIN
Pin Function
Ground.
No internal connection. A voltage or signal applied to this pin will have no effect
on device operation.
3V Supply input. Internal chip power is drawn from this supply.
5V Supply input.
3V Supply input.
Note: both 3.3VIN inputs must be powered to insure rated current and R
ON
is
met.
No internal connection. A voltage or signal applied to this pin will have no effect
on device operation.
Control Pins
7
C1
C2
0
0
8
C2
0
0
1
1
9
C0
1
1
10
11
12
13
14
15
16
FAULT/
NIC
VPP2
VCC
NIC
VPP1
C1
0
0
1
1
0
0
1
1
C0
0
1
0
1
0
1
0
1
VCC
3.3 V
3.3 V
Hi-Z
Hi-Z
3.3 V
3.3V
3.3V
GND
Outputs
VPP1
3.3 V
5.0 V
Hi-Z
GND
GND
5V
GND
GND
VPP2
3.3 V
5.0 V
Hi-Z
Hi-Z
5.0 V
GND
GND
GND
6
NIC
FAULT/ indicates the occurrence of a fault. FAULT/ is an open drain LOW true
output and goes low when any supply output is in current limit or if a thermal fault
occurs.
No internal connection. A voltage or signal applied to this pin will have no effect
on device operation.
VPP2 output to CableCARD™ card.
VCC (3V main supply) output to CableCARD™ card. Both output pins should be
connected together.
No internal connection. A voltage or signal applied to this pin will have no effect
on device operation.
VPP1 output to CableCARD™ card.
September 2007
3
M9999-092507-C
(408) 944-0800
Micrel, Inc.
MIC2569
Absolute Maximum Ratings
(1)
Power Supply Voltage
5VIN ........................................................-0.3V to +6.0V
3.3VIN .....................................................-0.3V to +3.8V
Voltage on any other pin................................-0.3V to +6.0V
Continuous Output Current:
VCC
.................................................................................
Internally limited
VPP ......................................................Internally limited
Current Into/Out of any control pin: .......................... ±10mA
Junction Temperature ................................................150°C
Storage Temperature .............................. –65°C to +150°C
Operating Ratings
(2)
Power Supply Voltage
5VIN
............................................................................................
3.0V to 5.5V
3.3VIN ........................................................ 3.0V to 3.6V
Continuous Output Current
VCC
.............................................................................................................
3.3A
VPP .................................................................. 450 mA
Ambient Temperature (T
A
)...........................–40°C to +85°C
Junction Temperature (T
J
).........................–40°C to +125°C
Thermal Resistance (θ
JA
).................................... 100.8°C/W
Soldering: QSOP Packages
(3)
Infrared (10 to 20 seconds)......................260°C Peak
Electrical Characteristics
(4)
3.3V
IN
= 3.3V; 5V
IN
= 5.0V; T
A
= 25°C. Bold values indicate –40°C
≤
T
A
≤
+85°C.
Symbol
Parameter
Condition
Min
Typ
Max
Units
3.3VIN
5VIN
Operating input voltage
Operating input voltage
S-Mode
I
3.3VIN
Supply Input Current
No Load
C2,C1,C0 =
000
001
010
M-Mode
100
111
S-Mode
I
5VIN
3.0
3.0
3.3
5.0
140
110
80
100
90
10
50
10
35
10
3.6
5.5
220
200
220
220
180
30
150
220
220
30
2.85
2.80
V
V
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
V
V
mV
mΩ
mΩ
mΩ
A
mA
I
VIN
Supply Input Current
No Load
C2,C1,C0 =
000
001
010
100
111
2.50
2.45
M-Mode
UVLO
UVLO
HYS
Under Voltage Lock Out
Hysteresis
R
ON_VCC
VCC Switch Resistance:
R
ON_VPP1
VPP1 Switch Resistance:
I
LIMIT_VCC
Output Current Limit: VCC
I
LIMIT_VPP1
Output Current Limit: VPP
1
3.3VIN rising
3.3VIN falling
2.76
2.69
80
Power Switches
I
OUT
= 1000 mA
I
OUT
= 125 mA V
OUT
= 3.3 V
I
OUT
= 125 mA V
OUT
= 5.0 V
VCC = 3.3 V
VPP1 = 3.3 V and VPP1 = 5.0 V
1.3
150
80
275
275
2.3
300
110
400
400
3.3
450
R
DS_ON
I
LIMIT
September 2007
4
M9999-092507-C
(408) 944-0800
Micrel, Inc.
MIC2569
I/O Logic
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
IL
V
IH
I
I
LOW-Level Input Voltage
HIGH-Level Input Voltage
Input Hysteresis
Input leakage Current
Output OFF leakage current
Open Drain Output LOW
Voltage
C2, C1, C0
FAULT/, V
FAULT/
= 5V
FAULT/, I
SINK
1
2
100
-1
4
+1
10
0.2
V
V
mV
µA
µA
V
IN_LGC
OFF
OL_OD
V
= 1 mA
AC Characteristics
The S-Mode and M-Mode AC Characteristics are not tested in production, specified by design.
Symbol
Parameter
Condition
Min
Typ
Max
Units
t
D_FAULT/
Delay before asserting or
deasserting FAULT/
Fault on VCC, VPP1, or VPP2
4
12
24
ms
S-Mode
t
PWRUP_S-MODE_VCC
t
PWRUP_S-MODE_VPP
t
ON_000-001_VPP
t
R_000-001_VPP
t
OFF_001-000_VPP
t
F_001-000_VPP
t
t
t
t
OFF_001-110_VPP
F_001-110_VPP
ON_110-000_VPP
R_110-000_VPP
Power-up Rise Time
Output Turn On Delay Time
Output Rise Time
Output Turn-Off Delay
Output Fall Time
Output Discharge Delay
Output Discharge Time
Output Turn On Delay Time
Output Rise Time
No Power to VIN Compliance
Notes 5 & 6
000 to 001
Notes 8 & 9
001 to 000
Notes 8 & 10
001 to 110
Notes 8 & 10
110 to 000
Notes 8 & 9
750
800
800
800
35
25
35
25
100
800
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
M-Mode
Symbol
Parameter
Condition
Min
Typ
Max
Units
t
t
t
t
ON_011-100_VCC
R_011-100_VCC
ON_011-100_VPP
R_011-100_VPP
Output Turn On Delay Time
Output Rise Time
Output Turn On Delay Time
Output Rise Time
Output Turn-Off Delay
Output Fall Time
Output Turn-Off Delay
Output Fall Time
Notes 5 & 6
011 to 100
Notes 8 & 9
Notes 5 & 7
100 to 010
Notes 8 & 10
50
750
800
800
35
25
35
25
µs
µs
µs
µs
µs
µs
µs
µs
t
OFF_100-010_VCC
t
F_100-010_VCC
t
OFF_100-010_VPP
t
F_100-010_VPP
September 2007
5
M9999-092507-C
(408) 944-0800
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
