Os motores de busca de Datasheet de Componentes eletrônicos |
|
LM3646 Folha de dados(PDF) 5 Page - Texas Instruments |
|
|
LM3646 Folha de dados(HTML) 5 Page - Texas Instruments |
5 / 31 page LM3646 www.ti.com SNVS962 – DECEMBER 2013 ELECTRICAL CHARACTERISTICS (1) (2) Limits in standard typeface are for TA = +25°C. Limits in boldface type apply over the full operating ambient temperature range ( −40°C ≤ TA ≤ +85°C). Unless otherwise specified, VIN = 3.6V. Symbol Parameter Conditions Min Typ Max Units Current Source Specifications ILED1/2 Current Source Accuracy 1.5A Flash, VOUT = 4V, LED1 or LED2 1.395 1.5 1.605 A Active ( −7%) (+7%) 93.4 mA Torch, VOUT = 3.6V, LED1 or 84.06 93.4 102.74 mA LED2 Active ( −10%) (+10%) VOUT - Current Source Regulation ILED = 1.5A Flash 250 280 mV VLED1/2 (+12%) ILED = 93.4 mA Torch 150 172.5 (+15%) Step-Up DC/DC Converter Specifications ICL Switch Current Limit −15% 1.0 +15% A −10% 3.1 +10% VOVP Output Over-Voltage Protection Trip Point ON Threshold 4.85 5.0 5.15 V OFF Threshold 4.65 4.8 4.95 RPMOS RPMOS Switch On-Resistance IPMOS = 1A 85 m Ω RNMOS NMOS Switch On-Resistance INMOS = 1A 65 UVLO Under Voltage Lockout Threshold Falling VIN 2.74 2.8 2.85 V VNTC-Trip NTC Comparator Trip Threshold −6% 600 +6% mV INTC NTC Current −6% 50 +6% µA VNTC-Open NTC Open Trip Threshold 2.2 2.3 2.4 V VNTC-Short NTC Short Trip Threshold 75 100 125 mV VIVFM Input Voltage Flash Monitor Trip Threshold −5% 2.9 +5% V fSW Switching Frequency 2.8V ≤ VIN ≤ 4.8V 3.72 4 4.28 MHz ISD Shutdown Supply Current Device Disabled, EN = 0V 0.1 1.3 µA 2.8V ≤ VIN ≤ 4.8V ISB Standby Supply Current Device Disabled, EN = 1.8V 2.5 10 µA 2.8V ≤ VIN ≤ 4.8V ENABLE, STROBE, TORCH, TX Voltage Specifications VIL Input Logic Low 2.8V ≤ VIN ≤ 4.2V 0 0.4 V VIH Input Logic High 1.2 VIN I2C-Compatible Interface Specifications (SCL, SDA) VIL Input Logic Low 2.8V ≤ VIN ≤ 4.2V 0 0.4 V VIH Input Logic High 1.2 VIN VOL Output Logic Low ILOAD = 1.5 mA 300 mV tSCL SCL Clock Period 1 µs (1) All voltages are with respect to the potential at the GND pin. (2) Min and Max limits are 100% production tested at an ambient temperature (TA) of 25 °C. Limits over the operating temperature range are specified through correlation using Statistical Quality Control (SQC) methods. Unless otherwise specified, conditions for typical specifications are: VIN = 3.6V and TA = +25°C. Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3646 |
Nº de peça semelhante - LM3646 |
|
Descrição semelhante - LM3646 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |