IC manufacturers Texas Instruments

IC manufacturers (99)

Texas Instruments SN6505B

Signal and power isolation with 3.3 V / 5 V input and 12 V / 15 V output

Overview

TopologyPush-Pull Converter symmetrical isolated
Input voltage2.25-5.5 V
Switching frequency100-1600 kHz
Output 116 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

Products

Order Code Data­sheet Downloads Status Product seriesVINVOut1
(V)
IOut1
(mA)
Type of Insulationfswitch
(kHz)
∫Udt
(Vµs)
NPRI : NSECL
(µH)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
MountVOut2
(V)
IOut2
(mA)
VOut3
(V)
IOut3
(mA)
VOut4
(V)
IOut4
(mA)
Samples
750316016SPEC
7 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
750316017SPEC
7 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
750316018SPEC
7 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
750316668SPEC
7 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
750316669SPEC
7 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
750316670SPEC
7 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
750316671SPEC
7 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
750316019SPEC
7 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
750316819SPEC
7 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
750316818SPEC
7 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
750316769SPEC
7 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
750316770SPEC
7 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
Samples
Order Code Data­sheet Downloads Status Product seriesVINVOut1
(V)
IOut1
(mA)
Type of Insulationfswitch
(kHz)
∫Udt
(Vµs)
NPRI : NSECL
(µH)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
MountVOut2
(V)
IOut2
(mA)
VOut3
(V)
IOut3
(mA)
VOut4
(V)
IOut4
(mA)
Samples