STHS2377LDW6F [STMICROELECTRONICS]
IEEE 802.3af PoE Powered Device (PD) interface controller; IEEE 802.3af标准的PoE受电设备（ PD ）接口控制器
| 型号： | STHS2377LDW6F |
| 厂家： | 
ST |
| 描述： | IEEE 802.3af PoE Powered Device (PD) interface controller |
| 文件： | 总20页 (文件大小：190K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STHS2375A, STHS2375L, STHS2376A,
STHS2376L, STHS2377A, STHS2377L
IEEE 802.3af PoE Powered Device (PD) interface controller
Features
8
■ IEEE 802.3af-compliant interface for Powered
Devices (PDs)
1
■ Integrated 100V, 500mA power MOSFET
■ Resistor-programmable inrush current limit
■ Normal operation current limit 460mA
■ External 25kΩ signature resistor
SO8 (M)
TSSOP8 (DW)
■ Resistor-programmable classification current
(Class 0-4)
■ Power Good output (active-high), open drain
Applications
■ Undervoltage Lockout (UVLO) - standard,
programmable, and legacy (see Table 1)
■ Voice over IP (VOIP) phones
■ Web cameras
■ Thermal overload protection
■ WLAN access points
■ Internet appliances
■ POS terminals
■ Latch (L) or auto-retry (A) after hard current
overload or repetitive thermal overload
■ Industrial temperature range: –40 to +85°C
■ 8-pin SO and 8-pin TSSOP packages
■ RoHS compliant
■ RFID readers
Table 1.
Device options
External
UVLO
threshold,
rising (V)
UVLO
threshold,
falling (V)
Protection
mode
Order code
signature
UVLO
resistor (1%)
STHS2375A
STHS2375L
STHS2376A
STHS2376L
STHS2377A
STHS2377L
24.9kΩ
24.9kΩ
24.9kΩ
24.9kΩ
24.9kΩ
24.9kΩ
Standard
Standard
39.3
39.3
2.49
2.49
35.1
35.1
30.5
30.5
1.93
1.93
30.5
30.5
Auto
Latch
Auto
Programmable
Programmable
Legacy
Latch
Auto
Legacy
Latch
July 2007
Rev 4
1/20
www.st.com
1
Contents
STHS237x
Contents
1
Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1
Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.6
1.1.7
1.1.8
Current limit (I ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LIM
Classification (CLASS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Detection resistor (DET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ground (V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SS
Return (RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Power Good output (PG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Undervoltage Lockout Input (UVLO, STHS2376A/L only) . . . . . . . . . . . . 7
Power supply (V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DD
2
3
4
5
6
Absolute maximum ratings STHS237xA, STHS237xL . . . . . . . . . . . . . 11
Electrical parameters STHS237xA, STHS237xL . . . . . . . . . . . . . . . . . . 12
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2/20
STHS237x
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
STHS2375A/L, STHS2377A/L pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . 6
STHS2376A/L pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application circuit overview (STHS2375A/L, STHS2377A/L) . . . . . . . . . . . . . . . . . . . . . . . . 8
STHS237xA block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
STHS237xL block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SO8 – 8-lead plastic small outline, 150 mils width, package outline. . . . . . . . . . . . . . . . . . 16
TSSOP8 – 8-lead, thin shrink small outline, 3x4.4mm, package outline . . . . . . . . . . . . . . 17
3/20
List of tables
STHS237x
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Device options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
IEEE802.3af PD power classes and corresponding R
values. . . . . . . . . . . . . . . . . . . 8
CLASS
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DC characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SO8 – 8-lead plastic small outline, 150 mils width, package mechanical data. . . . . . . . . . 16
TSSOP8 – 8-lead, thin shrink small outline, 3x4.4mm, package mechanical data. . . . . . . 17
Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4/20
STHS237x
Summary description
1
Summary description
The STHS237x is an IEEE802.3af-compliant family of interface controllers for Power over
Ethernet (PoE) Powered Device (PD) applications. The devices consist of two main
sections:
●
●
The IEEE802.3af interface to the PoE powered RJ-45 wall socket, and
the Hot Swap Controller (HSC) functions required to protect the PD during insertion,
operation, and withdrawal from the RJ-45 socket.
These devices have an integrated high voltage power MOSFET (low-side switch) with low
and the capability to accept transients as high as 100V. Since the pins (such as V
R
DS ON
DD
and V ) which interface to the RJ-45 socket can routinely see high peak voltages in excess
SS
of 100V, it is strongly recommended that board designers protect the PD device with a
transient voltage suppressor, such as the SMAJ58A (available from STMicroelectronics),
connected between the V and V pins (see Figure 4 on page 8).
DD
SS
The IEEE802.3af-compliant interface includes the basic PD Detection and Classification
functions, whereas the 'Hot Swap' functions include other basic features, such as Inrush
Current Limiting, Undervoltage Lockout (UVLO), and Thermal Overload Protection. All of the
devices include an open drain Power Good (PG) signal to indicate normal steady operation
(see Figure 1 on page 6 and Table 2 on page 6). The STHS237x family also incorporates a
voltage offset (two series diodes) to accommodate the input diode bridge used to make the
PD polarity insensitive.
The STHS237x family comprises devices for all the UVLO limits configurations: IEEE
standard compliant (STHS2375), programmable (STHS2376) and for legacy systems
(STHS2377). See Table 1 on page 1.
Each of the basic part types, the STHS2375, STHS2376 and the STHS2377, is available
either with Latched Operation (L) Mode or with Automatic Retry (A) Mode after fault
conditions. For product options overview see Table 1 on page 1.
5/20
Summary description
Figure 1.
STHS237x
Logic diagram
V
DD
(1)
UVLO
STHS2375A/L
STHS2376A/L
STHS2377A/L
PG
I
LIM
RTN
CLASS
DET
V
SS
AI12241
1. STHS2376A/L devices only.
Table 2.
Pin
Signal names
Symbol
Description
1
2
3
4
5
6
7
8
ILIM
CLASS
DET
VSS
Inrush Current Limit resistor
Classification resistor
Powered Device Detection resistor
Ground on the input side; return power line to PSE
Return power output, negative rail
RTN
PG
Power Good Output, open drain, active-high (referenced to RTN)
UVLO (1) Programmable Undervoltage Lockout input pin
VDD Positive Power Supply; common input/output power rail
1. STHS2376A/L devices only, for other part types No Connect.
Figure 2.
STHS2375A/L, STHS2377A/L pin connections (top view)
V
I
1
2
3
4
8
7
6
5
DD
LIM
CLASS
DET
NC
PG
V
RTN
SS
AI12238
Figure 3.
STHS2376A/L pin connections (top view)
V
I
1
2
3
4
8
7
6
5
DD
LIM
CLASS
DET
UVLO
PG
V
RTN
SS
AI12239
6/20
STHS237x
Summary description
1.1
Pin descriptions
1.1.1
Current limit (I
)
LIM
Connect a resistor between I
and V to set the start-up inrush current limit.
LIM
SS
I
R
= 25 000/R
[A]. Practical values of R
are between 62.5kΩ and 500kΩ.
LIM
ILIM
ILIM
= 178kΩ for inrush current of 140mA for compatibility with legacy PSEs. Do not leave
ILIM
open or connect to V
.
SS
1.1.2
Classification (CLASS)
Connect a Classification resistor between this pin and V to tell the PSE which power class
SS
will be connected. Do not connect this pin directly to V
.
SS
For classification resistor values, see Table 3 on page 8.
1.1.3
1.1.4
Detection resistor (DET)
Connect a 24.9kΩ resistor between DET and V to allow the PSE to detect the Powered
Device properly.
DD
Ground (V )
SS
This is the return power line on the PSE side (negative).
1.1.5
1.1.6
Return (RTN)
This is the return power output on the load side, negative rail.
Power Good output (PG)
This pin indicates that the STHS power MOSFET is fully on and works in normal operation
mode (Power Good). Open drain, high impedance means that the power is good; in all other
cases, the impedance is low (referenced to RTN).
1.1.7
1.1.8
Undervoltage Lockout Input (UVLO, STHS2376A/L only)
Connect the tap of the resistor divider between V and V to set the UVLO voltage limits
DD
SS
(see Figure 6 on page 10).
Note: STHS2376A/L only, for all other devices, this is No Connect.
Power supply (V )
DD
This is the Power Input/Output, positive rail.
7/20
Summary description
STHS237x
Table 3.
Class
IEEE802.3af PD power classes and corresponding R
values
CLASS
Max. Power at Input of
PD (W)
Classification Load
Current Limits (mA)
RCLASS Resistor
Usage
(Ω, 1%)
0
1
2
3
4
Default
Optional
Optional
Optional
Reserved
0.44 to 12.95
0.44 to 3.84
3.84 to 6.49
6.49 to 12.95
Reserved(1)
0-4
4420
953
549
357
255
9-12
17-20
26-30
36-44
1. Class 4 is currently reserved and should not be used.
Figure 4.
Application circuit overview (STHS2375A/L, STHS2377A/L)
RJ-45
TX
Pair
Data to Ethernet Physical Layer Device
2x DF01S
R
V
DET
DD
100
24.9kΩ,
kΩ
1%
DET
PG
SMAJ58A
To DC/DC
Converter
STHS2375A/L
STHS2377A/L
C2
C1
+
0.1µF,
100V
I
LIM
100µF,
100V
R
Spare
Pair
ILIM
R
CLASS
RTN
V
SS
Spare
Pair
CLASS
RX
Pair
Data to Ethernet Physical Layer Device
AI12240a
Note:
This configuration uses either data wires or spare wires for DC power.
8/20
STHS237x
Summary description
Figure 5.
STHS237xA block diagram
3
DET
Detection
Comparator
+
–
12V
V
8
DD
Classification
Comparator
10V
Regulator
CLASS
PG
2
6
+
–
22V
PG Comparator
Delay
150µs
+
1.5V
& 10V
–
S
Q
1 = Inrush
R
UVLO
Comp.
2.5V
+
–
Thermal Shutdown
5
RTN
1 = Limiting
(1)
7
UVLO
Current
Mirror
EN
1
Normal Oper.
Ref.
+
–
1:1
+
2.5V
Current
0
Limit Amp.
1
4
–
I
LIM
V
SS
0.1Ω
AI12245a
1. STHS2376A/L devices only. The UVLO comparator is connected directly to the UVLO input pin instead of
the internal UVLO divider. For all other devices, pin 7 is NC (No Connect).
9/20
Summary description
Figure 6.
STHS237x
STHS237xL block diagram
3
DET
Detection
Comparator
+
–
12V
V
8
DD
Classification
Comparator
10V
Regulator
CLASS
PG
2
6
+
–
22V
PG Comparator
Delay
150µs
+
1.5V
& 10V
–
R
0 = Fault
S
Q
0 = Inrush
S
Q
R
UVLO
Comp.
2.5V
+
–
Thermal Shutdown,
Counter, and Latch
5
RTN
1 = Limiting
(1)
UVLO
7
Current
Mirror
EN
1
Normal Oper.
Ref.
+
–
1:1
+
2.5V
Current
0
Limit Amp.
1
4
–
I
LIM
V
SS
0.1Ω
AI12246a
1. STHS2376A/L devices only. The UVLO comparator is connected directly to the UVLO input pin instead of
the internal UVLO divider. For all other devices, pin 7 is NC (No Connect).
10/20
STHS237x
Absolute maximum ratings STHS237xA, STHS237xL
2
Absolute maximum ratings STHS237xA, STHS237xL
Stressing the device above the rating listed in Table 4: Absolute maximum ratings may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Over the full operating temperature range, unless otherwise noted. Voltages are referenced
to the V pin.
SS
Table 4.
Voltage
Absolute maximum ratings
Symbol
Parameter
Value
Unit
VVDD, VRTN
–0.3 to 100
–0.3 to 90
–0.3 to10
–0.3 to 3
V
V
V
V
V
(1)
VDET, VPG
Voltage on the respective pins, referenced
to VSS pin
VUVLO
(2)
VILIM
(2)
VCLASS
–0.3 to 12
Current, sinking
IRTN
IPG
0 to 515
0 to 10
0 to 1
mA
mA
mA
Current sunk by the respective pins
Current sourced by the respective pins
IDET
Current, sourcing
ICLASS
IILIM
0 to 100
0 to 1
mA
mA
ESD
VHBM
VCDM
ESD Capability, Human body model
ESD Capability, Charged device model
2
kV
V
500
Temperature
TA
Operating ambient temperature range
Maximum junction temperature
Storage temperature
–40 to 85
°C
°C
°C
°C
Internally
limited
TJ
TSTG
TSLD
–55 to 150
260
Lead solder temperature for 10 seconds,
lead-free lead finish (3)
1. IRTN = 0
2. Voltage output, do not apply external voltage to the CLASS and ILIM pins.
3. Reflow at peak temperature of 260°C (total thermal budget not to exceed 245°C for more than
30 seconds).
11/20
Electrical parameters STHS237xA, STHS237xL
STHS237x
3
Electrical parameters STHS237xA, STHS237xL
Specifications common for all the STHS237xA/L product family unless otherwise
noted.
V
= 48V, R
= 24.9kΩ, R
= 255Ω, R
= 178kΩ, T = –40 to 125°C, unless
ILIM J
DD
DET
CLASS
otherwise noted, typical values at 25°C. For the STHS2376x V
= 0V for classification
UVLO
and V
= 5V otherwise. Voltages are referenced to the V pin unless otherwise noted.
UVLO
SS
Positive currents are into pins.
Table 5.
Symbol
Electrical parameters
Parameter
Test conditions
Min
Typ
Max
Units
Recommended operating conditions
VDD, PG, RTN
0
57
V
Input voltage range
UVLO
0
0
5
V
mA
Ω
Operating current
IRTN
RTN
450
4420
range (sinking)
Classification
RCLASS
CLASS
255
resistor (1) (2)
,
Inrush current limit
programming
resistor (2)
RILIM
62.5
0
500
10
kΩ
IPG(SINK)
Sinking current
PG = low
mA
Operating junction
temperature
TJ
TA
–40
–40
125
85
°C
°C
Operating free-air
temperature
1. Classification tested with exact resistor values. A 1% tolerance of classification resistor values is sufficient
for compliance with IEEE 802.3af classification current limits.
2. Do not apply external voltage to the CLASS and ILIM pins.
12/20
STHS237x
Electrical parameters STHS237xA, STHS237xL
Table 6.
Symbol
DC characteristics
Parameter
Test conditions
Min Typ
Max Unit
Detection
DET open, VVDD = VRTN = 1.9V, measure
IVDD + IRTN
Offset current
Sleep current
0.3
4
3
µA
DET open, VVDD = VRTN = 10.1V, measure
IVDD + IRTN
12
5
µA
µA
IIL(DET)
IDET
DET pin leakage current VDET = VVDD = 57V, measure IDET
0.1
53.7 56
VVDD = 1.4V
58.3 µA
VRTN = VVDD, RDET = 24.9kΩ,
measure IVDD + IRTN + IDET
Detection current
VVDD = 10.1V 395 410
417
µA
Classification
RCLASS = 4420Ω, VVDD = 13 to 21V
CLASS = 953Ω, VVDD = 13 to 21V
Classification current(1) RCLASS = 549Ω, VVDD = 13 to 21V
2.2
2.4
2.8
mA
R
10.3 10.6 11.3 mA
17.7 18.3 19.5 mA
27.1 28.0 29.5 mA
38.0 39.4 41.2 mA
ICLASS
RCLASS = 357Ω, VVDD = 13 to 21V
RCLASS = 255Ω, VVDD = 13 to 21V
Classification lower
Regulator turns on, VVDD rising
threshold
VCL(ON)
10.2 11.3 13.0
V
Classification upper
Regulator turns off, VVDD rising
threshold
VCU(OFF)
VCU(H)
21 21.9
0.5 0.78
23
1
V
V
Hysteresis
CLASS pin leakage
VCLASS = 0V, VVDD = 57V
current
IIL(CLASS)
1
µA
Pass device
RDS(ON)
On resistance
IRTN = 300mA
VDD = VRTN = 30V (VUVLO = 0V for
0.72
1.0
15
Ω
V
IRTN(L)
ILIM(N)
ILIM(I)
RTN pin leakage current
µA
STHS2376x)
Normal operation
current limit
VRTN = 1V
405 461
100 130
515 mA
180 mA
Inrush mode current
limit
VRTN = 2V, RILIM = 178kΩ
Inrush current
termination(2)
VRTN falling, RILIM = 178kΩ, inrush mode to
85
15
91
34
100
%
normal operation mode
Current rise time to
inrush(3)
RILIM = 69.8kΩ, VRTN-VSS = 5V, IRTN = 30 →
300mA, VVDD increasing past upper UVLO
µs
IIL(ILIM)
ILIM pin leakage current VVDD = 15V, VUVLO = 0V
1
µA
Power Good (PG)
RTN latch off voltage,
VRTN(LO R)
VRTN rising
9.5 10.0 10.5
V
rising(4)
13/20
Electrical parameters STHS237xA, STHS237xL
STHS237x
Table 6.
Symbol
DC characteristics (continued)
Parameter
Test conditions
Min Typ
Max Unit
PG deglitch
Delay rising and falling PG
IPG = 2mA, VRTN = 34V,
75
150
225
0.4
µs
V
0.12
VVDD = 38V, VRTN falling
VPG(OL)
Output low voltage
IPG = 2mA, VRTN = 0V, VVDD = 25V, for
STHS2376x VUVLO = 0V
0.12
0.1
0.4
1
V
IOL(PG)
PG pin leakage current VVDD = VPG = 57V, VRTN = 0V
µA
Undervoltage lockout (UVLO)
VUVLO(R)
Voltage at VDD pin, VVDD rising
Voltage at VDD pin, VVDD falling
Hysteresis
38.4 39.3 40.4
29.6 30.5 31.5
V
V
V
V
V
V
V
V
V
UVLO Thresholds,
STHS2375x
VUVLO(F)
VUVLO(H)
VUVL(R)
8.3
8.8
9.1
Voltage at UVLO pin, VUVLO rising
Voltage at UVLO pin, VUVLO falling
Hysteresis
2.43 2.49 2.57
1.87 1.93 1.98
0.53 0.56 0.58
34.1 35.1 36.0
29.7 30.5 31.4
UVLO Thresholds,
STHS2376x
VUVLO(F)
VUVLO(H)
VUVLO(R)
Voltage at VDD pin, VVDD rising
Voltage at VDD pin, VVDD falling
Hysteresis
UVLO Thresholds,
STHS2377x
VUVLO(F)
VUVLO(H)
4.3
4.5
4.8
UVLO pin leakage
IIL(UVLO)
current (STHS2376x
only)
VUVLO = 0 to 5V
–1
1
µA
Thermal shutdown
Shutdown
TSHUTDOWN temperature(3)
temperature rising
,
140
20
°C
°C
TSHUTDOWN H Hysteresis(3)
Supply current
IDD
Operating current
250
450
µA
1. Classification tested with exact resistor values. A 1% tolerance of classification resistor values is sufficient for compliance
with IEEE 802.3af classification current limits.
2. Percentage of the intial steady state RTN inrush current value, below which inrush is terminated and PG goes active.
3. Not tested in production.
4. Gradually increase VRTN from 0V until IRTN disappears.
14/20
STHS237x
Package mechanical data
4
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect. 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.
15/20
Package mechanical data
STHS237x
Figure 7. SO8 – 8-lead plastic small outline, 150 mils width, package outline
h x 45˚
C
A2
A
B
ddd
e
D
8
1
E
H
A1
α
L
SO-A
Note:
Drawing is not to scale.
Table 7.
SO8 – 8-lead plastic small outline, 150 mils width, package mechanical
data
mm
Min
inches
Min
Symb
Typ
Max
Typ
Max
A
A1
B
–
–
1.35
0.10
0.33
0.19
4.80
–
1.75
0.25
0.51
0.25
5.00
0.10
4.00
–
–
0.053
0.004
0.013
0.007
0.189
–
0.069
0.010
0.020
0.010
0.197
0.004
0.157
–
–
–
–
C
–
–
D
–
–
ddd
E
–
–
–
3.80
–
–
0.150
–
e
1.27
–
0.050
H
5.80
0.25
0.40
0°
6.20
0.50
0.90
8°
–
–
–
–
0.228
0.010
0.016
0°
0.244
0.020
0.035
8°
h
–
L
–
α
–
N
8
8
16/20
STHS237x
Package mechanical data
Figure 8.
TSSOP8 – 8-lead, thin shrink small outline, 3x4.4mm, package outline
D
8
5
c
E1
E
1
4
α
A1
L
A
A2
L1
CP
b
e
TSSOP8AM
Note:
Drawing is not to scale.
Table 8.
Symb
TSSOP8 – 8-lead, thin shrink small outline, 3x4.4mm, package
mechanical data
mm
inches
Typ
Min
Max
Typ
Min
Max
A
A1
A2
b
1.200
0.150
1.050
0.300
0.200
0.100
3.100
–
0.0472
0.0059
0.0413
0.0118
0.0079
0.0039
0.1220
–
0.050
0.800
0.190
0.090
0.0020
0.0315
0.0075
0.0035
1.000
0.0394
c
CP
D
3.000
0.650
6.400
4.400
0.600
1.000
2.900
–
0.1181
0.0256
0.2520
0.1732
0.0236
0.0394
0.1142
–
e
E
6.200
4.300
0.450
6.600
4.500
0.750
0.2441
0.1693
0.0177
0.2598
0.1772
0.0295
E1
L
L1
α
0
8
0
8
N
8
8
17/20
Part numbering
STHS237x
5
Part numbering
Table 9.
Ordering information scheme
Example:
STHS
2375A
M
6
F
Device type
STHS
Product options
2375A = Standard UVLO, Auto
2375L = Standard UVLO, Latch
2376A = Programmable UVLO, Auto
2376L = Programmable UVLO, Latch
2377A = Legacy UVLO, Auto
2377L = Legacy UVLO, Latch
Package
M = SO8 (150mils width)
DW (1) = TSSOP8 3x4.4mm
Temperature range
6 = –40 to 85°C
Shipping method
F = ECOPACK Package, Tape & Reel
E = ECOPACK Package, Tube
1. Contact local ST sales office for availability.
For other options, or for more information on any aspect of this device, please contact the
ST Sales Office nearest you.
18/20
STHS237x
Revision history
6
Revision history
Table 10. Document revision history
Date
Revision
Changes
11-Aug-2006
19-Dec-2006
24-May-2007
1
2
3
Initial release.
Updated Features and Table 4.
Formatting changes, updated Table 1, 4, 5, 6.
Document status upgraded to full datasheet, updated cover
page and Table 9.
26-Jul-2007
4
19/20
STHS237x
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20/20
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