参数资料
型号: LTC4012IUF-3#PBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: BATTERY CHARGE CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20
封装: 4 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-220WGGD-1, QFN-20
文件页数: 28/28页
文件大小: 369K
代理商: LTC4012IUF-3#PBF
40123fb
LTC4012-3
pin FuncTions
BGATE (Pin 16): External Synchronous NFET Gate Control
Output.ThisoutputprovidesgatedrivetoanexternalNMOS
powertransistorswitchusedforsynchronousrectification
to increase efficiency in the step-down DC/DC converter.
Operating voltage is GND to INTVDD. BGATE should be
left floating if not used.
INTVDD (Pin 17): Internal 5V Regulator Output. This pin
provides a means of bypassing the internal 5V regulator
used to power the LTC4012-3 PWM FET drivers. This sup-
ply shuts down when the LTC4012-3 shuts down. Refer to
the Application Information section for details if additional
power is drawn from this pin by the application circuit.
SW (Pin 18): PWM Switch Node. The LTC4012-3 uses the
voltage on this pin as the source reference for its topside
NFET (PWM switch) driver. Refer to the Applications In-
formation section for additional PCB layout suggestions
related to this critical circuit node. Operating voltage range
is GND to CLN.
TGATE(Pin19):ExternalNFETSwitchGateControlOutput.
ThisoutputprovidesgatedrivetoanexternalNMOSpower
transistor switch used in the DC/DC converter. Operating
voltage range is GND to (CLN + 5V).
BOOST (Pin 20): TGATE Driver Supply Input. A bootstrap
capacitor is returned to this pin from a charge network
connected to SW and INTVDD. Refer to the Applications
Information section for complete details on circuit topol-
ogyandcomponentvalues.Operatingvoltagerangesfrom
(INTVDD – 1V) to (CLN + 5V).
GND (Exposed Pad Pin 21): Ground. The package paddle
provides a single-point ground for the internal voltage
referenceandothercriticalLTC4012-3circuits.Itshouldbe
soldered to a suitable PCB copper ground pad for proper
electrical operation and to obtain the specified package
thermal resistance.
相关PDF资料
PDF描述
LTC4012IUF-3#TRPBF BATTERY CHARGE CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20
LTC4012IUF#TRPBF SWITCHING CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20
LTC4012IUF-1#TRPBF SWITCHING CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20
LTC4012IUF#PBF SWITCHING CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20
LTC4065EDC-4.4#PBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6
相关代理商/技术参数
参数描述
LTC4012IUF-3-TRPBF 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control
LTC4020EUHF#PBF 制造商:Linear Technology 功能描述:Battery Charger Lead-Acid/Li-FePO4/Li-Ion/Li-Pol 20000mA 55V 38-Pin QFN EP 制造商:Linear Technology 功能描述:IC BATT CHARGER 55V BB 38QFN 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38, Input Voltage:55V, Battery Charge Voltage:55V, Charge Current Max:20A, Battery IC Case Style:QFN, No. of Pins:38, No. of Series Cells:12, Operating Temperature Min:-40C, Operating Temperature Max:125C , RoHS Compliant: Yes
LTC4020EUHF#TRPBF 制造商:Linear Technology 功能描述:Battery Charger Lead-Acid/Li-FePO4/Li-Ion/Li-Pol 20000mA 55V 38-Pin QFN EP T/R 制造商:Linear Technology 功能描述:IC BATT CHARGER 55V BB 38QFN 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38, Input Voltage:55V, Battery Charge Voltage:55V, Charge Current Max:20A, Battery IC Case Style:QFN, No. of Pins:38, No. of Series Cells:12, Operating Temperature Min:-40C, Operating Temperature Max:125C , RoHS Compliant: Yes
LTC4020IUHF#PBF 制造商:Linear Technology 功能描述:Battery Charger Lead-Acid/Li-FePO4/Li-Ion/Li-Pol 20000mA 55V 38-Pin QFN EP 制造商:Linear Technology 功能描述:IC BATT CHARGER 55V BB 38QFN 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38, Input Voltage:55V, Battery Charge Voltage:55V, Charge Current Max:20A, Battery IC Case Style:QFN, No. of Pins:38, No. of Series Cells:12, Operating Temperature Min:-40C, Operating Temperature Max:125C , RoHS Compliant: Yes
LTC4020IUHF#TRPBF 制造商:Linear Technology 功能描述:Battery Charger Lead-Acid/Li-FePO4/Li-Ion/Li-Pol 20000mA 55V 38-Pin QFN EP T/R 制造商:Linear Technology 功能描述:IC BATT CHARGER 55V BB 38QFN 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38, Input Voltage:55V, Battery Charge Voltage:55V, Charge Current Max:20A, Battery IC Case Style:QFN, No. of Pins:38, No. of Series Cells:12, Operating Temperature Min:-40C, Operating Temperature Max:125C , RoHS Compliant: Yes