홈 배터리 관리 IC 배터리 충전기 IC
홈
배터리 관리 IC
배터리 충전기 IC

UC2909-EP

활성

차동 전류 감지 기능을 지원하는 EP(Enhanced Product) 스위치 모드 납산 배터리 충전기

지금 주문
데이터 시트

UC2909-EP

활성
데이터 시트 지금 주문

제품 상세 정보

Rating HiRel Enhanced Product Number of series cells 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Cell chemistry Lead Acid Charge current (max) (A) 2 Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 7.5 Vin (max) (V) 40 Absolute max Vin (max) (V) 40 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 20 Control interface Standalone (RC-Settable) Operating temperature range (°C) -55 to 125
Rating HiRel Enhanced Product Number of series cells 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Cell chemistry Lead Acid Charge current (max) (A) 2 Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 7.5 Vin (max) (V) 40 Absolute max Vin (max) (V) 40 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 20 Control interface Standalone (RC-Settable) Operating temperature range (°C) -55 to 125
SOIC (DW) 20 131.84 mm² 12.8 x 10.3
  • Accurate and Efficient Control of Battery Charging
  • Average Current Mode Control from Trickle to Overcharge
  • Resistor Programmable Charge Currents
  • Thermistor Interface Tracks Battery Requirements Over Temperature
  • Output Status Bits Report on Four Internal Charge States
  • Undervoltage Lockout Monitors VCC and VREF
  • APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (–55°C/125°C) Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Not to Exceed 185.35-KHz Oscillation Frequency at 125°C

(1) Additional temperature ranges available - contact factory
  • Accurate and Efficient Control of Battery Charging
  • Average Current Mode Control from Trickle to Overcharge
  • Resistor Programmable Charge Currents
  • Thermistor Interface Tracks Battery Requirements Over Temperature
  • Output Status Bits Report on Four Internal Charge States
  • Undervoltage Lockout Monitors VCC and VREF
  • APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (–55°C/125°C) Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Not to Exceed 185.35-KHz Oscillation Frequency at 125°C

(1) Additional temperature ranges available - contact factory

The UC2909 controls lead acid battery charging with a highly efficient average current mode control loop. This chip combines charge state logic with average current PWM control circuitry. Charge state logic commands current or voltage control depending on the charge state. The chip includes undervoltage lockout circuitry to insure sufficient supply voltage is present before output switching starts. Additional circuit blocks include a differential current sense amplifier, a 1.5% voltage reference, a –3.9-mV/°C thermistor linearization circuit, voltage and current error amplifiers, a PWM oscillator, a PWM comparator, a PWM latch, charge state decode bits, and a 100-mA open collector output driver.

The UC2909 controls lead acid battery charging with a highly efficient average current mode control loop. This chip combines charge state logic with average current PWM control circuitry. Charge state logic commands current or voltage control depending on the charge state. The chip includes undervoltage lockout circuitry to insure sufficient supply voltage is present before output switching starts. Additional circuit blocks include a differential current sense amplifier, a 1.5% voltage reference, a –3.9-mV/°C thermistor linearization circuit, voltage and current error amplifiers, a PWM oscillator, a PWM comparator, a PWM latch, charge state decode bits, and a 100-mA open collector output driver.
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다운로드

기술 자료

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1개 모두 보기
유형 직함 날짜
* Data sheet Switchmode Lead-Acid Battery Charger. datasheet 2010/07/23

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

지원 및 교육

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포럼 주제 모두 보기(영문)

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