

VIPER27LD
STMicroelectronics
-40℃~+150℃@(Tj) 1.5W 60kHz 8.5V~23.5V 80% 800V Flyback Isolation Over Voltage Protection、Under Voltage Protection、Over Current Protection、Short Circuit Protection、Soft Start、Over Temperature Protection、Constant Voltage (CV) PWM Modulation SO-16 AC-DC Controllers and Regulators ROHS
- Category
- AC DC Controllers And Regulators
- Package
- SO-16
- Pins
- 16
Overview
The VIPER27LD is an AC DC Controllers And Regulator made by STMicroelectronics in a SO-16 package with 16 pins. -40℃~+150℃@(Tj) 1.5W 60kHz 8.5V~23.5V 80% 800V Flyback Isolation Over Voltage Protection、Under Voltage Protection、Over Current Protection、Short Circuit Protection、Soft Start、Over Temperature Protection、Constant Voltage (CV) PWM Modulation SO-16 AC-DC Controllers and Regulators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:VIPER27LDTR, from EasyEDA) and its footprint (Package_SO:SO-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 1 are in stock at JLCPCB (part C2832858). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
11- Duty Cycle(Max)
- 80%
- Features
- Overtemperature protection (OTP)
- Feedback System
- Primary-side feedback
- Frequency - Switching
- 60kHz
- Isolation
- Isolation
- Operating Temperature
- -40℃~+150℃
- Pd - Power Dissipation
- 1.5W
- Topology
- Flyback
- Voltage - Breakdown
- 800V
- Voltage - Supply
- 8.5V~23.5V
- Working Mode
- PWM Modulation
Order codes
1- VIPER27LDTRLCSC C2832858
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | GND | Unspecified |
| 2 | GND | Unspecified |
| 3 | N.C. | Unspecified |
| 4 | N.A. | Unspecified |
| 5 | VDD | Unspecified |
| 6 | CONT | Unspecified |
| 7 | FB | Unspecified |
| 8 | BR | Unspecified |
| 9 | N.C. | Unspecified |
| 10 | N.C. | Unspecified |
| 11 | N.C. | Unspecified |
| 12 | N.C. | Unspecified |
| 13 | DRAIN | Unspecified |
| 14 | DRAIN | Unspecified |
| 15 | DRAIN | Unspecified |
| 16 | DRAIN | Unspecified |
Open-source boards using it
All 1- 2 layers105 × 59.4 mm

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Is there a KiCad symbol and footprint for the VIPER27LD?
Yes. The symbol is EasyEDA_Cloud:VIPER27LDTR and the footprint Package_SO:SO-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the VIPER27LD?
SO-16, with 16 pins. Its footprint is drawn on this page.
Where is the VIPER27LD datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the VIPER27LD?
JLCPCB lists it as part C2832858, with 1 in stock; the sellers' links on this page open their listings.
What can replace the VIPER27LD?
Parts like it in the library: the HR1002GS-Z by Monolithic Power Systems, the VIPER37LD by STMicroelectronics, the VIPER0PHD by STMicroelectronics and the VIPER35LD by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the VIPER27LD?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8HR1002GS-Z
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SOIC-16-40℃~+150℃@(Tj) 60kHz 8.5V~23.5V 80% 800V Flyback Isolation SOIC-16 AC-DC Controllers and Regulators ROHSSTMicroelectronicsAC-DC Controllers And RegulatorsVIPER0PHD
SO-16-40℃~+150℃@(Tj) 120kHz 12W 4.5V~30V 80% 800V Flyback、Buck、Buck-Boost Isolation Over Current Protection、Short Circuit Protection、Over Temperature Protection PWM Modulation、PFM Modulation Secondary-Side Feedback SO-16 AC-DC Controllers and Regulators ROHSSTMicroelectronicsAC-DC Controllers And RegulatorsVIPER35LD
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SOIC-16-40℃~+125℃@(TJ) 50% 600kHz 8.9V~15.5V Isolation SOIC-16 AC-DC Controllers and Regulators ROHSMonolithic Power SystemsAC-DC Controllers And RegulatorsHR1001LGS-Z
SOIC-16-40℃~+125℃@(TJ) 50% 600kHz 8.9V~15.5V Isolation SOIC-16 AC-DC Controllers and Regulators ROHSMonolithic Power SystemsAC-DC Controllers And Regulators