STHS2375AM6F

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 ■ Resistor-programmable classification current (Class 0-4) ■ Power Good output (active-high), open drain ■ Undervoltage Lockout (UVLO) - standard, programmable, and legacy (see Table 1) ■ Voice over IP (VOIP) phones ■ Thermal overload protection ■ Web cameras ■ Latch (L) or auto-retry (A) after hard current overload or repetitive thermal overload ■ WLAN access points ■ Industrial temperature range: –40 to +85°C ■ ■ 8-pin SO and 8-pin TSSOP packages ■ ■ RoHS compliant Table 1. SO8 (M) TSSOP8 (DW) l o bs O ) s ( t c u d Device options c u d o r Applications ■ ) s t( P e et Internet appliances POS terminals RFID readers External signature resistor (1%) UVLO UVLO threshold, rising (V) UVLO threshold, falling (V) Protection mode 24.9kΩ Standard 39.3 30.5 Auto 24.9kΩ Standard 39.3 30.5 Latch 24.9kΩ Programmable 2.49 1.93 Auto STHS2376L 24.9kΩ Programmable 2.49 1.93 Latch STHS2377A 24.9kΩ Legacy 35.1 30.5 Auto STHS2377L 24.9kΩ Legacy 35.1 30.5 Latch Order code o r eP STHS2375A STHS2375L t e ol STHS2376A bs O 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 Current limit (ILIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1.2 Classification (CLASS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1.3 Detection resistor (DET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1.4 Ground (VSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1.5 Return (RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1.6 Power Good output (PG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1.7 Undervoltage Lockout Input (UVLO, STHS2376A/L only) . . . . . . . . . . . . 7 1.1.8 Power supply (VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ) s t( 2 Absolute maximum ratings STHS237xA, STHS237xL . . . . . . . . . . . . . 11 3 Electrical parameters STHS237xA, STHS237xL . . . . . . . . . . . . . . . . . . 12 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 c u d o r l o bs O ) s ( t c u d o r eP t e ol s b O 2/20 P e et 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 ) s t( c u d o r l o bs P e et O ) s ( t c u d o r eP t e ol s b O 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 RCLASS values. . . . . . . . . . . . . . . . . . . 8 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 ) s t( c u d o r l o bs O ) s ( t c u d o r eP t e ol s b O 4/20 P e et STHS237x 1 Summary description 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 RDS ON and the capability to accept transients as high as 100V. Since the pins (such as VDD and VSS) which interface to the RJ-45 socket can routinely see high peak voltages in excess 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 VDD and VSS pins (see Figure 4 on page 8). 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. ) s t( c u d o r P e et 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. l o bs 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. O ) s ( t c u d o r eP t e ol s b O 5/20 Summary description Figure 1. STHS237x Logic diagram VDD UVLO(1) STHS2375A/L STHS2376A/L STHS2377A/L ILIM CLASS PG RTN DET VSS AI12241 1. STHS2376A/L devices only. Table 2. Signal names Description Symbol 1 ILIM 2 CLASS 3 DET Powered Device Detection resistor 4 VSS Ground on the input side; return power line to PSE 5 RTN Return power output, negative rail 6 PG Power Good Output, open drain, active-high (referenced to RTN) 7 UVLO (1) 8 VDD c u d o r Inrush Current Limit resistor Classification resistor l o bs P e et Programmable Undervoltage Lockout input pin O ) Positive Power Supply; common input/output power rail s ( t c u d 1. STHS2376A/L devices only, for other part types No Connect. Figure 2. STHS2375A/L, STHS2377A/L pin connections (top view) o r eP t e l o s Ob Figure 3. VDD ILIM 1 8 CLASS 2 7 NC DET 3 6 PG VSS 4 5 RTN AI12238 STHS2376A/L pin connections (top view) ILIM CLASS 1 8 VDD 2 7 UVLO DET 3 6 PG VSS 4 5 RTN AI12239 6/20 ) s t( Pin STHS237x Summary description 1.1 Pin descriptions 1.1.1 Current limit (ILIM) Connect a resistor between ILIM and VSS to set the start-up inrush current limit. ILIM = 25 000/RILIM [A]. Practical values of RILIM are between 62.5kΩ and 500kΩ. RILIM = 178kΩ for inrush current of 140mA for compatibility with legacy PSEs. Do not leave open or connect to VSS. 1.1.2 Classification (CLASS) Connect a Classification resistor between this pin and VSS to tell the PSE which power class will be connected. Do not connect this pin directly to VSS. For classification resistor values, see Table 3 on page 8. 1.1.3 Detection resistor (DET) ) s t( Connect a 24.9kΩ resistor between DET and VDD to allow the PSE to detect the Powered Device properly. 1.1.4 This is the return power line on the PSE side (negative). 1.1.5 c u d o r Ground (VSS) Return (RTN) l o bs P e et This is the return power output on the load side, negative rail. 1.1.6 Power Good output (PG) O ) 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). s ( t c Input (UVLO, STHS2376A/L only) 1.1.7 Undervoltage Lockout u d o r P e t le 1.1.8 o Power supply (V ) s b O Connect the tap of the resistor divider between VDD and VSS to set the UVLO voltage limits (see Figure 6 on page 10). Note: STHS2376A/L only, for all other devices, this is No Connect. DD This is the Power Input/Output, positive rail. 7/20 Summary description STHS237x IEEE802.3af PD power classes and corresponding RCLASS values Table 3. Class Usage Max. Power at Input of PD (W) Classification Load Current Limits (mA) RCLASS Resistor (Ω, 1%) 0 Default 0.44 to 12.95 0-4 4420 1 Optional 0.44 to 3.84 9-12 953 2 Optional 3.84 to 6.49 17-20 549 3 Optional 6.49 to 12.95 26-30 357 36-44 255 4 Reserved Reserved (1) 1. Class 4 is currently reserved and should not be used. Figure 4. Application circuit overview (STHS2375A/L, STHS2377A/L) RJ-45 TX Pair ) s t( Data to Ethernet Physical Layer Device c u d o r 2x DF01S RDET 24.9kΩ, 1% VDD P e et DET l o bs SMAJ58A C1 0.1µF, 100V Spare Pair Spare Pair c u d o r eP RX Pair t e l o s Ob Note: 8/20 ) s t( -O PG STHS2375A/L STHS2377A/L ILIM RILIM 100 kΩ + C2 To DC/DC Converter 100µF, 100V CLASS RTN VSS RCLASS Data to Ethernet Physical Layer Device This configuration uses either data wires or spare wires for DC power. AI12240a STHS237x Summary description Figure 5. STHS237xA block diagram 12V VDD 3 DET 2 CLASS 6 PG Detection Comparator + – 8 Classification Comparator 22V 10V Regulator + PG Comparator – Delay 150µs + 1.5V & 10V – S Q R 2.5V 1 = Inrush + UVLO Comp. 7 1 = Limiting Current Mirror 2.5V + 1:1 Normal Oper. 1 Ref. 0 ILIM 1 VSS 4 c u d o r Thermal Shutdown – UVLO(1) l o bs – O ) P e et + – ) s t( 5 RTN EN Current Limit Amp. 0.1Ω AI12245a s ( t c u d 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). o r eP t e ol s b O 9/20 Summary description STHS237x Figure 6. STHS237xL block diagram 12V VDD 3 DET 2 CLASS 6 PG Detection Comparator + – 8 Classification Comparator 22V 10V Regulator + PG Comparator – Delay 150µs + 1.5V & 10V – S Q R 2.5V (1) UVLO R 0 = Inrush + S UVLO Comp. 1 = Limiting Current Mirror 2.5V + 1:1 Normal Oper. 1 Ref. 0 ILIM l o bs – 1 VSS 4 O ) s ( t c u d P e et + – ) s t( c u d o r Thermal Shutdown, Counter, and Latch – 7 0 = Fault Q 5 RTN EN Current Limit Amp. 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). o r eP t e ol s b O 10/20 STHS237x 2 Absolute maximum ratings STHS237xA, STHS237xL 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 VSS pin. Table 4. Absolute maximum ratings Symbol Parameter Value Unit –0.3 to 100 V Voltage VVDD, VRTN VDET, VPG (1) ) s t( –0.3 to 90 Voltage on the respective pins, referenced to VSS pin VUVLO (2) c u d o r –0.3 to10 V V –0.3 to 3 V –0.3 to 12 V 0 to 515 mA 0 to 10 mA 0 to 1 mA 0 to 100 mA 0 to 1 mA 2 kV ESD Capability, Charged device model 500 V Operating ambient temperature range –40 to 85 °C TJ Maximum junction temperature Internally limited °C TSTG Storage temperature –55 to 150 °C TSLD Lead solder temperature for 10 seconds, lead-free lead finish (3) 260 °C VILIM VCLASS (2) Current, sinking IRTN IPG l o bs Current sunk by the respective pins IDET O ) Current, sourcing ICLASS s ( t c u d IILIM ESD o r eP VHBM VCDM t e ol P e et Current sourced by the respective pins ESD Capability, Human body model Temperature O bs TA 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 3 STHS237x Electrical parameters STHS237xA, STHS237xL Specifications common for all the STHS237xA/L product family unless otherwise noted. VDD = 48V, RDET = 24.9kΩ, RCLASS = 255Ω, RILIM = 178kΩ, TJ= –40 to 125°C, unless otherwise noted, typical values at 25°C. For the STHS2376x VUVLO = 0V for classification and VUVLO = 5V otherwise. Voltages are referenced to the VSS pin unless otherwise noted. Positive currents are into pins. Table 5. Electrical parameters Symbol Parameter Test conditions Min Typ Max Units 0 57 V 0 5 Recommended operating conditions VDD, PG, RTN Input voltage range UVLO IRTN RCLASS RILIM IPG(SINK) Operating current range (sinking) RTN Classification resistor (1), (2) CLASS 0 l o bs PG = low O ) 450 V mA 4420 Ω 62.5 500 kΩ 0 10 mA P e et 255 Inrush current limit programming resistor (2) Sinking current c u d o r ) s t( TJ Operating junction temperature –40 125 °C TA Operating free-air temperature –40 85 °C o r eP s ( t c u d 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. t e ol 2. Do not apply external voltage to the CLASS and ILIM pins. s b O 12/20 STHS237x Table 6. Electrical parameters STHS237xA, STHS237xL DC characteristics Symbol Parameter Test conditions Min Typ Max Unit Detection Offset current DET open, VVDD = VRTN = 1.9V, measure IVDD + IRTN 0.3 3 µA Sleep current DET open, VVDD = VRTN = 10.1V, measure IVDD + IRTN 4 12 µA 0.1 5 µA IIL(DET) DET pin leakage current VDET = VVDD = 57V, measure IDET IDET Detection current VRTN = VVDD, RDET = 24.9kΩ, VVDD = 1.4V measure IVDD + IRTN + IDET VVDD = 10.1V 53.7 56 58.3 µA 395 410 417 µA RCLASS = 4420Ω, VVDD = 13 to 21V 2.2 2.4 2.8 mA RCLASS = 953Ω, VVDD = 13 to 21V 10.3 10.6 11.3 mA RCLASS = 549Ω, VVDD = 13 to 21V 17.7 18.3 19.5 mA Classification Classification current(1) ICLASS c u d o r RCLASS = 357Ω, VVDD = 13 to 21V RCLASS = 255Ω, VVDD = 13 to 21V VCL(ON) Classification lower threshold Regulator turns on, VVDD rising VCU(OFF) Classification upper threshold Regulator turns off, VVDD rising VCU(H) Hysteresis IIL(CLASS) CLASS pin leakage current eP t e l o s b 27.1 28.0 29.5 mA 38.0 39.4 41.2 mA 10.2 11.3 13.0 V 21 21.9 23 V 0.5 0.78 1 V 1 µA 1.0 Ω 15 µA -O VCLASS = 0V, VVDD = 57V Pass device c u d ) s t( ) s t( RDS(ON) On resistance IRTN(L) RTN pin leakage current VVDD = VRTN = 30V (VUVLO = 0V for STHS2376x) ILIM(N) Normal operation current limit VRTN = 1V 405 461 515 mA Inrush mode current limit VRTN = 2V, RILIM = 178kΩ 100 130 180 mA Inrush current termination(2) VRTN falling, RILIM = 178kΩ, inrush mode to normal operation mode 85 91 100 % Current rise time to inrush(3) RILIM = 69.8kΩ, VRTN-VSS = 5V, IRTN = 30 → 300mA, VVDD increasing past upper UVLO 15 34 ILIM(I) o r eP t e ol s b O IIL(ILIM) IRTN = 300mA 0.72 ILIM pin leakage current VVDD = 15V, VUVLO = 0V µs 1 µA 10.5 V Power Good (PG) VRTN(LO R) RTN latch off voltage, rising(4) VRTN rising 9.5 10.0 13/20 Electrical parameters STHS237xA, STHS237xL Table 6. DC characteristics (continued) Symbol Parameter PG deglitch VPG(OL) IOL(PG) STHS237x Test conditions Min Typ Max Unit 75 150 225 µs IPG = 2mA, VRTN = 34V, VVDD = 38V, VRTN falling 0.12 0.4 V IPG = 2mA, VRTN = 0V, VVDD = 25V, for STHS2376x VUVLO = 0V 0.12 0.4 V VVDD = VPG = 57V, VRTN = 0V 0.1 1 µA Delay rising and falling PG Output low voltage PG pin leakage current Undervoltage lockout (UVLO) VUVLO(R) VUVLO(F) UVLO Thresholds, STHS2375x VUVLO(H) VUVL(R) VUVLO(F) UVLO Thresholds, STHS2376x VUVLO(R) 40.4 V Voltage at VDD pin, VVDD falling 29.6 30.5 31.5 V Hysteresis 8.3 8.8 9.1 V Voltage at UVLO pin, VUVLO rising 2.43 2.49 2.57 V Voltage at UVLO pin, VUVLO falling 1.87 1.93 1.98 V Voltage at VDD pin, VVDD falling Hysteresis UVLO pin leakage current (STHS2376x only) Thermal shutdown TSHUTDOWN Shutdown temperature(3), temperature rising c u d TSHUTDOWN H Hysteresis(3) O ) t(s o r eP Supply current Operating current IDD t e ol eP t e l o s b VUVLO = 0 to 5V ) s t( c u d o r Voltage at VDD pin, VVDD rising UVLO Thresholds, STHS2377x VUVLO(H) IIL(UVLO) 38.4 39.3 Hysteresis VUVLO(H) VUVLO(F) Voltage at VDD pin, VVDD rising 0.53 0.56 0.58 V 34.1 35.1 36.0 V 29.7 30.5 31.4 V 4.3 4.8 V 1 µA 4.5 –1 140 °C 20 °C 250 450 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. s b O 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 µA STHS237x 4 Package mechanical data 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. ) s t( c u d o r l o bs P e et O ) s ( t c u d o r eP t e ol s b O 15/20 Package mechanical data Figure 7. STHS237x SO8 – 8-lead plastic small outline, 150 mils width, package outline h x 45˚ A2 A C B ddd e D 8 E H 1 α A1 L SO-A Note: ) s t( Drawing is not to scale. Table 7. c u d o r SO8 – 8-lead plastic small outline, 150 mils width, package mechanical data mm Symb Typ Min A – 1.35 A1 – 0.10 B – 0.33 C – 0.19 D – Min Max – 0.053 0.069 0.25 – 0.004 0.010 0.51 – 0.013 0.020 0.25 – 0.007 0.010 5.00 – 0.189 0.197 – 0.10 – – 0.004 – 3.80 4.00 – 0.150 0.157 1.27 – – 0.050 – – H – 5.80 6.20 – 0.228 0.244 h – 0.25 0.50 – 0.010 0.020 L – 0.40 0.90 – 0.016 0.035 α – 0° 8° – 0° 8° c u d ddd E o r eP e t e ol s b O 16/20 P e et Typ N – ) s t( 4.80 8 Max inches l o bs 1.75 -O 8 STHS237x Package mechanical data Figure 8. TSSOP8 – 8-lead, thin shrink small outline, 3x4.4mm, package outline D 8 5 c E1 1 E 4 α L A1 A A2 L1 CP b e ) s t( TSSOP8AM Note: Drawing is not to scale. Table 8. c u d o r TSSOP8 – 8-lead, thin shrink small outline, 3x4.4mm, package mechanical data mm Symb Typ Min A 0.050 ) s t( c du 1.000 b 0.090 o r eP s b O t e ol 0.800 0.190 c CP Typ inches Min 1.200 A1 A2 l o bs Max P e et -O Max 0.0472 0.150 0.0020 0.0059 0.0315 0.0413 0.300 0.0075 0.0118 0.200 0.0035 0.0079 1.050 0.0394 0.100 0.0039 D 3.000 2.900 3.100 0.1181 0.1142 0.1220 e 0.650 – – 0.0256 – – E 6.400 6.200 6.600 0.2520 0.2441 0.2598 E1 4.400 4.300 4.500 0.1732 0.1693 0.1772 L 0.600 0.450 0.750 0.0236 0.0177 0.0295 L1 1.000 0 8 α N 0.0394 0 8 8 8 17/20 Part numbering 5 STHS237x 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 ) s t( 2377A = Legacy UVLO, Auto c u d o r 2377L = Legacy UVLO, Latch Package M = SO8 (150mils width) DW (1) = TSSOP8 3x4.4mm Temperature range l o bs P e et O ) 6 = –40 to 85°C s ( t c u d Shipping method F = ECOPACK Package, Tape & Reel E = ECOPACK Package, Tube o r eP t e ol 1. Contact local ST sales office for availability. s b O 18/20 For other options, or for more information on any aspect of this device, please contact the ST Sales Office nearest you. STHS237x 6 Revision history Revision history Table 10. Document revision history Date Revision Changes 11-Aug-2006 1 Initial release. 19-Dec-2006 2 Updated Features and Table 4. 24-May-2007 3 Formatting changes, updated Table 1, 4, 5, 6. 26-Jul-2007 4 Document status upgraded to full datasheet, updated cover page and Table 9. ) s t( c u d o r l o bs P e et O ) s ( t c u d o r eP t e ol s b O 19/20 STHS237x Please Read Carefully: Information in this document is provided solely in connection with ST products. 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