2.1 Notebooks, game stations, audio players, and similar applications
5
3.0 Consumer goods
6
3.1 LCD TVs
6
3.2 Plasma TVs
7
3.3 Set-top-boxes
8
4.0 Telecom
9
4.1 Base stations: AC-DC converters
9
4.2 Mobile phones: battery chargers
9
5.0 Industrial supplies
11
5.1 Welding
11
5.2 Three-phase motor control
11
6.0 Automotive supplies
12
6.1 Reverse polarity protection
12
6.2 Engine motor control
12
6.3 High Intensity Discharge (HID)
13
6.4 DC-DC converters
13
6.5 Injection
14
7.0 General-purpose supplies
15
7.1 Embedded DC-DC converters
15
8.0 Focus on the Power Schottky avalanche diode specification
17
8.1 2% savings with specified Power Schottky avalanche diodes
17
8.2 Key steps
17
8.3 Key benefits: choose between efficiency and cost savings
17
9.0 Ordering scheme
18
9.1 Signal Schottky series
18
9.2 Power Schottky series
18
9.3 SiC diodes
19
9.4 Ultrafast series
19
Meeting today’s industrial power-conversion requirements The following diagrams are intended to help you when designing an SMPS (switch-mode power supply) to select the most suitable discrete components from the ST portfolio. An extensive list of ST references is provided for each application, as well as for each function within the application. For more information, please contact your local ST sales office.
1.0 Computers 1.1 Desktop PCs
Front end
PFC
Forward converter
AC in
+12 V
STTHxx02 series STPSxx120 series STPSxx100 series STPSxx60 series
+5 V
STPSxx30 series STPSxxxL30 series STPSxx45 series STPSxxH60 series
+3.3 V
STPSxxL30 series STPSxx30 series STPSxx45 series
STTHxx06 series Demagnetization: STTH208 STTH310
+5 V
STPSxx45 series
-5 V
Flyback
-12 V
3
1.2 File servers STTHxx06 series STPSCxx06 series Front end
PFC
Half bridge converter
+12 V
AC in
+5 V Front end +3.3 V
+5 V
Standby
+3.3 V
-5 V -12 V Standby power primary: P6KE series STTH108/STTH110
4
Standby power rectification: STPS1045D
Demagnetization in forward: STTHxx08 series STTHxx10 series
Rectification diodes 12 V output: STPSxxH/L60 series STPSxxH/M100 series
Demagnetization in half bridge: STTHxx03 series
5 V output: STPSxxL30 series STPSxxL45 series 3.3 V output: STPSxxL30 series STPSxxL45 series
OR-ing diodes: STPSxxL15 series
2.0 Computers and consumer goods 2.1 Notebooks, game stations, audio players, and similar applications Adapter converter (1) Front end
PFC
Flyback
AC in +12-22 V
Demagnetization: STTH108 STTH110
STPSxxH/M100 series STPSxx120 series STPSxx170 series
Integrated MosFET protection: PKC136 MosFET protection: STTH108 STTH110 P6KE series
STPSxx150 series STPSxxH100 series STPSxx120 series
+5 V STPSxxL45 series
+12 V
STPSxxH100 series STPSxxL60 series
+5 V
STPSxxL45 series
Aux. Supply STTH1R06
Integrated MosFET protection: PKC136 MosFET protection: STTH108 series STTH110 series P6KE series
+3.3 V
STPSxxL25 series
STTH106 STTH108 STTH208 STTH110
Pale blue circuitry indicates a proposed integrated alternative
7
3.3 Set-top boxes
Flyback
STTH3L06 STTH5L06 STTH8L06 Front end
Secondary:
+24 V 24V output: STTHxx02 series STPS 150V 1A-2A
PFC 1.5 KE series
+12 V
12V output: STTHxx02 series STPSxx100 series
+9 V
9V output: STPS 20-60V 1A-5A
+5 V
5V output: STPS 45V 1A-2A
+2.5 V/+3.3 V
2.5V / 3.3V output: STPS 30-45V 2A-3A
AC in
Primary: STTH108 STTH208 STTH110
8
4.0 Telecom 4.1 Base stations: AC-DC converter PFC boost diode: STTH1506TPI STTH3006TPI STTH15R06 STTH30R06 STPSCxx06 series
Front end
PFC
Full bridge converter -24 V OR-ing: STPS20L60x STPS30L60x STPS30H60
AC in
-48 V OR-ing: STPS10H / M100 series STPS20H100 STPS30H100 STPS41H100 -24 V output: STPSxxH / M100 series STPSxx170 series
Demagnetization diode: STTH8R03
-48 V output: STPSxx170 series STTH series Standby power primary: STTH108 STTH110 Standby power rectification: STPS1045
4.2 Mobile phones: battery chargers Battery charger (1) Clamping diode: STTH series
Front end
Flyback
AC in
+5 V
Integrated MosFET protection: PKC136 MosFET protection: STTH108 series STTH110 series P6KE series
Secondary rectification: STPSxxL60 series
Output rectification: STPS1L60 STPS2L60 STPS3L60 STTHxx02 series
Pale blue circuitry indicates a proposed integrated alternative
9
Battery charger (2) Reverse battery: STPS120M STPS140M STPS0530Z STPS0540Z BAT48/BAT30 series Battery charging: +6 V to +15 V Overvoltage and reverse polarity protection: Transky™ diodes
Battery 1.8 V/3.6 V
V out +3.3 V to +5 V Boost diode: STPS1L20M STPS1L40M BAT30 series
10
5.0 Industrial supplies 5.1 Welding Secondary diodes/Plasma type: STTHxx10 series 60 A to 200 A (available in ISOTOP package)
PFC boost diode: STTHxx06 series
Front end
Half bridge converter
V out AC in
Primary diodes: STTHxx10 series STTHxx12 series
Secondary diodes/MIG type: STTHxx02/STTHxx03/STTHxx04 series 60 A to 200 A (available in ISOTOP package)
7.0 General-purpose supplies 7.1 Embedded DC-DC converters Forward converter V IN +3.3/+5 V
+3.3 V/+5 V output: STPSxxL30 series STPSxxL45 series STPSxxL60 series
+12 V/+15 V
+12 V/+15 V output: STPSxxL60 series STPSxxH60 series STPSxxH/M100 series STPSxx120 series STPSxx170 series
com
-12 V/-15 V
-12 V/-15 V output: STPSxxL60 series STPSxxH60 series STPSxxH100 series
Demagnetization diode STPS1H100A/U STPS2H100A/U
Flyback converter STPSxx100 series STTH series V IN Integrated MosFET protection: PKC136 MosFET protection: STTH108 series STTH110 series P6KE series
+12-22 V
STPSxxH/M100 series STPSxx120 series STPSxx150 series STPSxx170 series
Pale blue circuitry indicates a proposed integrated alternative
15
Buck converter
Diode rectification V IN
V OUT
STPSxx series STTHxx series BAT30 series BAT48 series BAT54 series
Synchronous rectification V IN
V OUT
BAT30 series BAT46 series BAT48 series BAT54 series
16
8.0 Focus on the Power Schottky avalanche diode specification 8.1 2% savings with specified Power Schottky avalanche diodes! Rectifier devices usually represent from 10 to 15 % of the cost of an SMPS bill of material. This means that with a 20 % savings on the rectifiers when using the avalanche specification of STMicroelectronics diodes, you save 2 % or more on the total SMPS BOM. As a result of exhaustive characterization, reliability and R&D validation, ST offers the best solution by rating the avalanche for each of its Power Schottky diodes. The avalanche rating temperature and pulse width derating curves ensure a precise match between the power converter voltage spikes and the capability of the diodes. This key information provides the designer with the opportunity to choose between upgrading the efficiency by 2 % and reducing the BOM cost by 2 %.
8.2 Key steps 1. Spike measurement and avalanche power calculation in applications (PP ) 2. Comparison with the diode capability specified in the datasheet (PP < P ARM ) 3. Power-loss budget verification
1
2
3
8.3 Key benefits: choose between efficiency and cost savings Application improvement examples with avalanche diodes 280 W SMPS
Reference design
Efficiency improvement
Cost saving
3.3 V/10 A
STPS3045CT
STPS3030CT
STPS2030CT
5.0 V/25 A
STPS6045CW
STPS6030CW
STPS3030CT
12 V/10 A
STPS20H100CT
STPS20L60CT
STPS10L60CT
Efficiency
Nominal
+2 %
Unchanged
Diode cost
Nominal
Unchanged
From -15 % to -25 %
SMPS cost
Nominal
Unchanged
-2 %
17
9.0 Ordering scheme 9.1 Signal Schottky series
BAT 54-07P6FILM Series by V RRM and features ¸ 15 V – Low capacitance ¸ 30 V – Low V F – Low IR ¸ 40 V – Low V F – Low IR ¸ 70 V – Low capacitance ¸ 100 V – Low V F – Low capacitance
BAS69 BAT30 BAT42 or BAT43 BAT47 or BAT 48 BAT54 BAS70 BAT46 BAT41
Configuration single diode ¸ Blank ¸ S or 04 diodes in series ¸ C or 05 common cathode ¸ A or 06 common anode ¸ 07 2 parallel diodes ¸ 08 3 parallel diodes ¸ 09 2 opposite diodes
0.5 A 1 A 2 A 3 A 5 A 2 x 3 A 7.5 A 8 A 12 A 15 A or 2 x 7.5 A 16 A 20 A or 2 x 10 A 2 x 12.5 A 30 A 2 x 20 A 2 x 30 A 80 A or 2 x 40 A 2 x 45 A 100 A 2 x 60 A 2 x 80 A 2 x 100 A
Package Through-hole ¸ Blank DO-41/DO-201 (Axial) DPAK ¸ B Trade-off TO-220AC ¸ D ¸ Void medium V /I F R ¸ DI TO-220I high temperature ¸H ¸ FP TO-220FP (AB or AC) (<120 V only) ¸ H IPAK ¸L low V F from I0 /2 to I0 ¸ PI DOP3I (<120 V only) ¸Q DO-15 (Axial) ¸M low V F from I0 /4 to I0 /2 ¸R I2PAK ¸ T TO-220AB TO-247 or DO-247 ¸W Voltage max MAX-247 ¸ Y ¸ 15 = 15 V ¸ 20 = 20 V SMD ¸ 25 = 25 V ¸ A SMA ¸ 30 = 30 V ¸ B DPAK ¸ 40 = 40 V ¸G D2PAK ¸ 45 = 45 V ¸S SMC ¸ 60 = 60 V ¸U SMB ¸ 100 = 100 V SMB Flat ¸ UF ¸ 120 = 120 V SOD-123 ¸ Z ¸ 150 = 150 V ¸ TV1/TV2 ISOTOP (longitudinal/lateral) ¸ 170 = 170 V Single or dual diode ¸ Blank Single in a 2-lead package ¸S Single in a 2-lead package ¸C Common cathode
9.3 SiC diodes
STPSC10 06D Power Schottky structure
Package ¸ D
TO-220AC
Silicon carbide Current rating ¸ STPSC08xxx ¸ STPSC10xxx
1 A Trade-off 3 A ¸ Void low V (600 V mainly) F 5 A ¸L medium V F & QRR 8 A ¸R low QRR recovery 12 A Note: R trade-off mainly used for 15A 400 V and 600 V 2 x 8 A 20 A 30 A Voltage max 2 x 30 A ¸ 02 x 100 V = 200 V 60 A ¸ 04 x 100 V = 400 V 80 A ¸ 06 x 100 V = 600 V 2 x 45 A ¸ 08 x 100 V = 800 V 100A ¸ 10 x 100 V = 1000 V 2 x 60 A ¸ 12 x 100 V = 1200 V 2 x 100 A
Package Through-hole ¸ Blank Axial: DO-41, DO-15, DO-201 ¸ D TO-220AC ¸ DI TO-220I ¸ T TO-220AB ¸ FP TO-220FPAB ¸ PI DOP3I I2PAK ¸R TO-247 or DO-247 ¸W SMD ¸ A SMA ¸U SMB ¸S SMC ¸ B DPAK D2PAK ¸G ¸ TV1/TV2 ISOTOP (longitudinal/lateral) For dual diode – ONLY Common cathode ¸C
