L5961 [STMICROELECTRONICS]
MOST power management device (PMD); 大多数电源管理器件（ PMD ）
| 型号： | L5961 |
| 厂家： | 
ST |
| 描述： | MOST power management device (PMD) |
| 文件： | 总7页 (文件大小：162K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
L5961
MOST power management device (PMD)
Data Brief
Features
■ 5V or 3.3V / 650mA DC-DC Converter with
external sync
■ 5V or 3.3V/ 40mA standby voltage regulator
■ 5V or 3.3V / 60mA switchable voltage regulator
PowerSO-36
■ Very low quiescent current (zero power mode
and ultra zero power mode feature)
■ Power management fully compatible to MOST
PowerSSO-36
specification
■ Provides power supply for physical layer and
for the physical layer, the Network Controller and
the External Host Controller of a MOST Node.
control unit
■ Switch to power pulse generator
The L5961 also allows the implementation of a
generic MOST node design that can be
reproduced "as is" in any other project, thus
avoiding the activities of redesign and re-
verification of MOST PMD compliance
■ Reacts on four different wake-up events
–
–
–
–
Switch to power pulse (STPP)
Light ON (for status)
Activity on Diagnostic_I/O
ON/OFF switch
The L5961 implements complete monitoring of
the supply voltage (over-voltage, under-voltage,
critical voltage), moreover it supports multiple
power modes like Zeropower-mode (where one
complete MOST node sinks around 25µA current)
and Ultra-zero power mode (5µA). All the
diagnostic protocols from major carmakers are
supported and the device reacts to many different
wake-up events.
2
■ I C interface
■ Programmable system configuration
■ Reset generator
■ Intrinsic diagnostic transceiver
(standard LIN2.0)
■ 3 battery detectors for battery voltage
monitoring
The L5961 is completely configurable through its
2
■ Watchdog circuit
I C bus and fully compatible with MOST
specifications.
■ PowerSS0-36 and PowerSO-36 packages
options
L5961 has been specified in cooperation with
SMSC and represents a "chipset" solution when
used with SMSC's MOST network interface
controllers (INIC or NIC).
Description
The L5961 MOST PMD integrates all the discrete
circuitry usually necessary to implement power
supplies and power management for a MOST
node. It includes intrinsic MOST specific power
management together with sophisticated
Table 1.
Order code
L5961
L5961PD
Device summary
Package
Packing
PowerSSO-36
PowerSO-36
Tube
Tube
diagnostic and fail-safe functions. The MOST
PMD is designed to provide direct power supply
January 2008
Rev 1
1/7
For further information contact your local STMicroelectronics sales office.
www.st.com
7
Block and application diagram example (with INIC)
L5961
1
Block and application diagram example (with INIC)
Figure 1.
Block and application example (with INIC)
RxD
TxD
PWROFF
INTN
AD
SDA
SCL
GNDSUB
TAB
GND
ON-switch
2/7
L5961
Functionality details
2
Functionality details
●
Provides three basic states:
–
–
Zero power mode
All external HW is switched off. PM-chip is switched Off except "REG1 voltage
regulator", "Switch-to-power-pulse comparator" and "Control logic".
Ultra zero power mode
All external HW is switched off. PM-chip is switched Off except "ON/OFF Control
logic". PMD can be woken up to reach "Zero current mode" by activities on
DIAG_I/O line
–
Normal
PMD and external HW is powered. One of the four possible wake-up conditions
occurs and the wake-up event is confirmed either by means of PWROFF pin or
2
I C bus.
To confirm the on-event:
- PWROFF pin must be driven low OR
2
- the right I C bus command is provided.
●
Reacts on four different wake-up events
–
–
–
–
Switch to power pulse (STPP)
Light ON (for status)
Activity on Diag_I/O
ON/OFF switch
2
●
●
●
I C interface (allowing system programmability)
Generation of switch to power pulse (STPP)
Online battery monitoring, reacts on battery changes/ events:
–
–
–
Over voltage
Critical voltage
Under voltage
●
●
Hardware watchdog triggered with discrete input, available to monitor the activity of the
controller
Fail-safe behavior:
–
–
–
Intrinsic filtering time of wake-up events
Protection against software caused failures
Over-temperature warning / thermal protection
●
Diagnostic transceiver compatible to standard LIN2.0
3/7
Package information
L5961
3
Package information
®
In order to meet environmental requirements, ST (also) offers these devices in ECOPACK
®
packages. ECOPACK packages are lead-free. The category of second Level Interconnect
is marked on the package and on the inner box label, in compliance with JEDEC Standard
JESD97. The maximum ratings related to soldering conditions are also marked on the inner
box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 2.
PowerSSO-36 mechanical data and package dimensions
mm
inch
TYP. MAX.
0.097
DIM.
MIN.
2.15
2.15
0
0.18
0.23
10.10
TYP. MAX. MIN.
2.47 0.084
2.40 0.084
OUTLINE AND
MECHANICAL DATA
A
A2
a1
b
0.094
0.003
0.014
0.012
0.075
0
0.36 0.007
0.32 0.009
10.50 0.398
c
(1)
0.413
D
(1)
E
7.4
7.6
0.291
0.299
e
e3
F
G
G1
H
h
0.5
8.5
2.3
0.019
0.335
0.090
0.004
0.002
0.413
0.016
5˚
0.035
0.169
10˚
0.047
0.031
0.114
0.144
0.039
0.185
0.287
0.10
0.06
10.50 0.398
0.40
10.10
0.55
k
L
5˚
0.90 0.022
10˚
M
N
O
Q
S
T
U
X
4.3
1.2
0.8
2.9
3.65
1.0
PowerSSO-36
(exposed pad)
4.1
6.5
4.7
7.3
0.161
0.256
Y
(1) "D” and “E" do not include mold flash or protrusions Mold flash
or protrusions shall not exceed 0.15 mm per side(0.006”)
hx45
G
LEAD COPLANARITY
A
D
e
Y
T
L
BOTTOM VIEW
B
M
A B
0.1
b
e3
7587131 A
4/7
L5961
Package information
PowerSO-36 mechanical data and package dimensions
Figure 3.
mm
inch
DIM.
MIN.
TYP. MAX. MIN.
3.60
TYP. MAX.
0.1417
0.0118
0.1299
0.0039
0.0150
0.0126
0.6299
0.3858
0.5709
0.4370
0.1142
0.2441
0.0256
0.4350
0.0039
0.6260
0.0433
0.0433
OUTLINE AND
MECHANICAL DATA
A
a1
a2
a3
b
0.10
0.30 0.0039
3.30
0
0.10
0.22
0.23
15.80
9.40
13.90
10.90
0.38 0.0087
0.32 0.0091
16.00 0.6220
9.80 0.3701
14.5 0.5472
11.10 0.4291
2.90
c
D
D1
E
E1
E2
E3
e
5.80
6.20 0.2283
0.65
e3
G
11.05
0
0.10
H
15.50
15.90 0.6102
1.10
h
L
0.8
1.10 0.0315
10˚ (max)
8˚ (max)
N
s
PowerSO-36
Note: “D and E1” do not include mold flash or protusions.
- Mold flash or protusions shall not exceed 0.15mm (0.006”)
- Critical dimensions are "a3", "E" and "G".
0096119 C
5/7
Revision history
L5961
4
Revision history
Table 2.
Date
21-Jan-2008
Document revision history
Revision
Changes
1
Initial release.
6/7
L5961
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