BQ7790509PWR

Bilder sind nur zur Referenz

BQ7790509PWR

IC BATT PROT LI-ION 3-5C 20TSSOP

  • Hersteller
  • Fr. Teil #BQ7790509PWR
  • Paket
  • Datenblatt
  • Auf Lager2214

100% Original und Neu

24 Stunden bereit zum Versand

365 Tage Garantie

RFQ & Erhalten Sie mehr Rabatte

Spezifikationen

Part Status Active
Base Product Number BQ7790509
Function Battery Protection
Battery Chemistry Lithium Ion
Number of Cells 3 ~ 5
Fault Protection Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package 20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 20-TSSOP
Packaging Bulk, Cut Tape (CT), Tape & Reel (TR)

Übersicht

Description

BQ7790509PWR is TI’s standalone protection IC for Li-ion/Li-poly battery packs with 5–9 cells (up to ~40 V). It continuously monitors individual cell voltages, pack current, and temperature, and it drives external MOSFETs to disconnect the pack if faults are detected. Key protections include overvoltage, undervoltage, overcurrent/short-circuit, and overtemperature, plus features like pre-charge and reverse-current protection with latch/auto-recovery behavior. It’s a “powerpad” (PWR) package that requires external protection FETs, a sense resistor, and an NTC sensor. No MCU is required; it is designed to be a stand-alone battery protector in multi-cell packs for devices such as consumer electronics, power tools, and EV-related packs. For details on pins, thresholds, and application circuits, refer to the datasheet and TI application notes.

Features

Here are the key features of bq7790509PWR (PowerPAD version):
- Multi-cell Li-ion/Li-poly protection for 5–9 series packs (up to ~38–42 V)
- Protection functions: overcharge, overdischarge, overcurrent, short-circuit
- Reverse-current/charger protection
- Dual MOSFET gate drive to disconnect the pack on fault (CHG/DSG)
- Cell-voltage sensing across up to 9 cells (S1–S9 inputs)
- Temperature monitoring via external NTC and over/under temperature protection
- Fault latch with auto-retry; POR/reset and wake-from-charge behavior
- Status/alert outputs and fault reporting (CHG/DSG indicators)
- Timing delays and hiccup protection to minimize nuisance trips
- Low quiescent current and ESD protection
- PowerPAD/THERMAL pad package for enhanced heat dissipation
Note: For exact pinout, voltage ranges, and programmable thresholds, please consult the official datasheet.

Package

PowerPAD package (thermally enhanced exposed-pad, TI QFN-style package).

Pinout

- Pin count: 28 pins (PowerPAD/PWR variant in a QFN/TQFN-style package).
- Function: bq7790509PWR is a 9-series Li‑ion battery protection IC. It monitors cell voltages, pack current (via sense), and temperature, and drives external protection FETs to provide overcharge, overdischarge, overcurrent/short‑circuit protection, plus status/diagnostic outputs.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is a US multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing ICs and other semiconductor products for electronics and power management.

Application

- Function: Battery protection and cell-level monitoring for Li-ion/Li-poly multi-cell packs; provides OVP/UVP, OCP/SCP, temperature sensing, and pack FET drive.
- Applications: Battery management systems for consumer electronics, cordless tools, e-bikes/e-scooters, energy storage systems, telecom backup, and solar storage packs.

Equivalent

There isn’t a direct one-for-one equivalent from other vendors. BQ7790509PWR is TI’s 9‑cell Li‑ion battery-pack protection IC in the BQ7790x family. For a near substitute, use another TI device in the same family with identical pinout/ratings or use TI’s cross-reference tool. If sourcing outside TI, look for 9S Li‑ion pack protection ICs and match voltage, current, and protection features.

Versand

VersandmethodenWir

bieten Sie globale Versanddienstleistungen durch DHL, FedEx, TNT, UPS oder einen anderen Spediteur Ihrer Wahl.


Versandgebührenreferenz (DHL/FedEx):

DHL: Versandkosten reichen von $25-$45 (0.5kg), mit einer geschätzten Lieferzeit von 2-5 Werktagen.

von FedEx: Versandkosten reichen von $25-$40 (0.5kg), mit einer geschätzten Lieferzeit von 3-7 Werktagen.

UPS: Versandkosten reichen von $25-$45 (0.5kg), mit einer geschätzten Lieferzeit von 3-7 Werktagen.

TNT: Versandkosten reichen von $25-$65 (0.5kg), mit einer geschätzten Lieferzeit von 3-7 Werktagen.

EMS: Versandkosten reichen von $30-$50 (0.5kg), mit einer geschätzten Lieferzeit von 7-15 Werktagen.

Registrierte Luftpost: Versandkosten sind $ 2- $ 4 (0,1 kg), mit einer geschätzten Lieferzeit von 5-20 Werktagen.

Zahlungen

Payment Methods

Die Zahlungsfrist ist 100% Prepaid.

Derzeit akzeptieren wir nur die folgenden Zahlungsmethoden:

1. PayPal

2. Kredit- / Debitkarte

3. Überweisung

Ähnliche