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ADBMS6815 Datasheet – 12-Channel Battery Monitor

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Part Number: ADBMS6815

Function: 12-Channel Multicell Battery Monitor

Package: 48-lead LQFP package

Manufacturer: Analog Devices ( https://www.analog.com/ )

Images:

ADBMS6815 datasheet

Description

The ADBMS6815 is a multicell battery stack monitor that measures up to 12 series connected battery cells with a lifetime total meas urement error (TME) of less than 1.5 mV. The measurement range of 0 V to 5 V makes the ADBMS6815 suitable for most battery chemistries. All 12 cells can be measured in 304 µs, and lower data acquisition rates can be selected for high noise reduction. Multiple ADBMS6815 devices can be connected in series, permit ting simultaneous cell monitoring of long, high voltage  battery strings.

Each ADBMS6815 has an isoSPI™ interface for high speed, RF immune, long distance communications. Multiple devices are connected in a daisy chain with one host processor connection, which can be operated bidirectionally, ensuring communication integrity even in the event of a fault along the communication path.

Typical Application Circuit

ADBMS6815 pinout circuit

 

 

Features

1. Measures up to 12 battery cells in series

2. Maximum lifetime total measurement error: 1.5 mV

3. Stackable architecture for high voltage battery packs

4. Built-in isoSPI interface

(1) 2 Mb isolated serial communications

(2) Uses a single twisted pair, up to 20 meters

(3) Low EMI susceptibility and emissions

(4) Bidirectional for broken wire protection

(5) Capacitor or transformer coupled

5. Diagnostics for IC and application circuit failure modes

6. 304 µs to measure all cells in a system

7. 16-bit ADC with programmable noise filter

8. Passive cell balancing up to 300 mA per channel with program mable PWM

 

Applications

1. Electric and hybrid electric vehicles

2. Backup battery systems

3. Grid energy storage

4. Large portable power banks

 

ADBMS6815 Datasheet PDF

ADBMS6815 pdf

ADBMS6815 datasheet pdf

STPS40H100CW Diode – 100V, 20A, Schottky Rectifier ( PDF )

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Part Number: STPS40H100CW

Function: 100V, 20A, High voltage power Schottky Rectifier

Package: TO-247 Type

Manufacturer: STMicroelectronics

Image

STPS40H100CW datasheet pdf

 

Description

The STPS40H100CW is a dual center-tap Schottky rectifier rated at 100V and 40A total (2 × 20A), designed for high-efficiency power conversion in high-frequency applications. Fabricated using advanced Schottky barrier technology, it offers very low forward voltage drop and negligible reverse recovery losses, making it highly suitable for switch-mode power supplies (SMPS), DC-DC converters, and inverter systems. The device is housed in a TO-247 package for effective thermal management and high current capability.

Features

  • Dual center-tap configuration (2 × 20A)
  • Negligible switching losses due to Schottky operation (no reverse recovery)
  • Low forward voltage drop (VF) for improved efficiency
  • Low reverse leakage current
  • Optimized trade-off between leakage and conduction loss
  • Low thermal resistance package (TO-247)
  • Avalanche capability specified for robustness
  • Suitable for high-frequency operation

Pinout

STPS40H100CW datasheet

Absolute Maximum Ratings (Tc = 25 °C)

Parameter Symbol Value Unit
Repetitive Peak Reverse Voltage VRRM 100 V
Average Forward Current (per diode) IF(AV) 20 A
Surge Forward Current IFSM (Typically high, consult datasheet) A
Operating Junction Temperature Tj 150 °C
Storage Temperature Tstg -55 to 150 °C

Design Notes

  • Schottky structure eliminates reverse recovery charge (Qrr ≈ 0), significantly reducing switching loss in high-frequency converters
  • Forward voltage typically ranges ~0.5–0.85V depending on current and temperature, improving efficiency over PN diodes
  • Thermal design is critical: TO-247 allows mounting to heatsink for high current operation
  • Leakage current increases with temperature — consider thermal derating in high ambient conditions
  • Center-tap configuration is ideal for full-wave rectification in push-pull or half-bridge topologies

Typical Circuit Usage

  • Output rectification stage in SMPS (flyback, forward, half-bridge)
  • Freewheeling diode in buck converters
  • High-frequency DC-DC converter rectifier
  • Secondary-side rectification in isolated converters
  • Inverter output rectification

How to Choose This Part

  • Select for applications requiring fast switching and low loss at ≤100V
  • Ensure average and surge current margins are sufficient
  • Prefer for high-frequency (>50kHz) operation where PN diode losses are significant
  • Evaluate thermal resistance and heatsinking requirements carefully
  • Consider leakage characteristics in high-temperature environments

Applications

  • Switch-mode power supplies (SMPS)
  • High-frequency DC-DC converters
  • Power inverters
  • UPS systems
  • Industrial power conversion systems

Alternative / Equivalent Products

  • MBR40200CT (200V higher voltage alternative)
  • STPS60L100CW (higher current variant)
  • VS-40CPQ100 (Vishay equivalent)
  • BYV32 series (ultrafast alternative, not Schottky)
  • STPS30H100CT (lower current option)

Other data sheets are available within the file: STPS40H100, STPS40H100C

 

STPS40H100CW Datasheet PDF Download


STPS40H100CW pdf