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Overview
| Topology | Push-Pull Converter symmetrical isolated |
| Input voltage | 2.25-5.5 V |
| Switching frequency | 100-1600 kHz |
| Output 1 | 16 V / 1.5 A |
Description
This application note gives out information on how to make a compact-design for a combination of signal and power isolation. There are several important points to achieve a proper design for isolation power supply that will be discussed in this app note. The board contains three independent lanes that show transformer and component selection for different requirements.
Features
- Push-pull driver for transformers
- Wide input voltage range: 2.25 V to 5.5 V
- High output drive: 1 A at 5 V supply
- Low RON 0.25 Ω max at 4.5 V supply
- Ultra-low EMI
- Spread spectrum clocking
- Precision internal oscillator options: 160 kHz (SN6505A) and 420 kHz (SN6505B)
- Synchronization of multiple devices with external clock input
- Slew-rate control
- 1.7 A Current-limit
- Low shutdown current: <1 µA
- Thermal shutdown
- Wide temperature range: –55°C to 125°C
- Small 6-Pin SOT23 (DBV) package
- Soft-start to reduce In-rush current
More information
Products
| Order Code | Datasheet | Downloads | Status | Product series | VIN | VOut1 (V) | IOut1 (mA) | Type of Insulation | fswitch (kHz) | ∫Udt (Vµs) | NPRI : NSEC | L (µH) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | VOut2 (V) | IOut2 (mA) | VOut3 (V) | IOut3 (mA) | VOut4 (V) | IOut4 (mA) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 750316016 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTM Push-Pull Tiny Multi-Output Transformers | 5 V (DC) | 12.85 | 100 | Functional | 400 | 8.9 | 1:2.57:1.14 | 60 | 2500 | 11.63 | 12.6 | 3.68 | SMT | 5.7 | 200 | -5.7 | 200 | -12.85 | 95 | |
| 750316017 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTM Push-Pull Tiny Multi-Output Transformers | 5 V (DC) | 12.85 | 100 | Functional | 400 | 8.9 | 1.17:3:1 | 60 | 2500 | 11.63 | 12.6 | 3.68 | SMT | 4.27 | 200 | -4.27 | 200 | -12.85 | 95 | |
| 750316018 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTM Push-Pull Tiny Multi-Output Transformers | 5 V (DC) | 15.7 | 85 | Functional | 400 | 8.9 | 1:3.14:1.14 | 60 | 2500 | 11.63 | 12.6 | 3.68 | SMT | 5.7 | 200 | -5.7 | 200 | -15.7 | 85 | |
 | 750316668 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTM Push-Pull Tiny Multi-Output Transformers | 5 V (DC) | 12.85 | 100 | Functional | 400 | 8.9 | 1:2.57:1.14 | 60 | 2500 | 11.63 | 12.6 | 1.98 | SMT | 5.7 | 200 | -5.7 | 200 | -12.85 | 95 | |
| 750316669 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTM Push-Pull Tiny Multi-Output Transformers | 5 V (DC) | 12.85 | 100 | Functional | 400 | 8.9 | 1.17:3:1 | 60 | 2500 | 11.63 | 12.6 | 1.98 | SMT | 4.27 | 200 | -4.27 | 200 | -12.85 | 95 | |
| 750316670 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTM Push-Pull Tiny Multi-Output Transformers | 5 V (DC) | 15.7 | 85 | Functional | 400 | 8.9 | 1:3.14:1.14 | 60 | 2500 | 11.63 | 12.6 | 1.98 | SMT | 5.7 | 200 | -5.7 | 200 | -15.7 | 85 | |
| 750316671 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTM Push-Pull Tiny Multi-Output Transformers | 5 V (DC) | 15.7 | 100 | Functional | 400 | 8.9 | 1.17:3.67:1 | 60 | 2500 | 11.63 | 12.6 | 1.98 | SMT | 4.27 | 200 | -4.27 | 200 | -15.7 | 95 | |
| 750316019 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTM Push-Pull Tiny Multi-Output Transformers | 5 V (DC) | 15.7 | 100 | Functional | 400 | 8.9 | 1.17:3.67:1 | 60 | 2500 | 11.63 | 12.6 | 3.68 | SMT | 4.27 | 200 | -4.27 | 200 | -15.7 | 95 | |
 | 750316819 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | 5 V (DC) | 12 | 460 | Functional | 400 - 700 | 9 | 1:2.88 | 86 | 2500 | 8.3 | 12.6 | 4.1 | SMT | – | – | – | – | – | – | |
| 750316818 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | 5 V (DC) | 17 | 380 | Functional | 400 - 700 | 9 | 1:3.5 | 86 | 2500 | 8.3 | 12.6 | 4.1 | SMT | – | – | – | – | – | – | |
 | 750316769 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | 5 V (DC) | 15 | 250 | Functional | 300 - 620 | 9 | 1:3.45 | 350 | 2500 | 6.73 | 10.2 | 4.19 | SMT | – | – | – | – | – | – | |
| 750316770 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | 5 V (DC) | 12 | 280 | Functional | 300 - 620 | 9 | 1:2.91 | 350 | 2500 | 6.73 | 10.2 | 4.19 | SMT | – | – | – | – | – | – |
| Order Code | Datasheet | |
|---|---|---|
| 750316016 | SPEC |
| 750316017 | SPEC |
| 750316018 | SPEC |
| 750316668 | SPEC |
| 750316669 | SPEC |
| 750316670 | SPEC |
| 750316671 | SPEC |
| 750316019 | SPEC |
| 750316819 | SPEC |
| 750316818 | SPEC |
| 750316769 | SPEC |
| 750316770 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Status | Product series | VIN | VOut1 (V) | IOut1 (mA) | Type of Insulation | fswitch (kHz) | ∫Udt (Vµs) | NPRI : NSEC | L (µH) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | VOut2 (V) | IOut2 (mA) | VOut3 (V) | IOut3 (mA) | VOut4 (V) | IOut4 (mA) | Samples |
|---|
