Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - gate drivers Non-inverting Half-bridge SOIC 8

DRIVER

LEVEL

SHIFT

UVLO

NRND

LM5109

www.ti.com

SNVS369 –APRIL 2005

LM5109 100V/1A Peak Half Bridge Gate Driver

Check for Samples: LM5109

FEATURES

PACKAGE

• Drives Both a High Side and Low Side N-

• SOIC-8

Channel MOSFET

• WSON-8 (4 mm x 4 mm)

• 1A Peak Output Current (1.0A Sink / 1.0A

Source) DESCRIPTION

The LM5109 is a low cost high voltage gate driver,

• Independent TTL Compatible Inputs

designed to drive both the high side and the low side

• Bootstrap Supply Voltage to 118V DC

N-Channel MOSFETs in a synchronous buck or a

• Fast Propagation Times (27 ns Typical)

half bridge configuration. The floating high-side driver

is capable of working with rail voltages up to 100V.

• Drives 1000 pF Load with 15ns Rise and Fall

The outputs are independently controlled with TTL

Times

compatible input thresholds. A robust level shifter

• Excellent Propagation Delay Matching (2 ns

technology operates at high speed while consuming

Typical)

low power and providing clean level transitions from

• Supply Rail Under-voltage Lockout

the control input logic to the high side gate driver.

Under-voltage lockout is provided on both the low

• Low Power Consumption

side and the high side power rails. The device is

• Pin Compatible with ISL6700

available in the SOIC-8 and the thermally enhanced

WSON-8 packages.

TYPICAL APPLICATIONS

• Current Fed Push-pull Converters

• Half and Full Bridge Power Converters

• Solid State Motor Drives

• Two Switch Forward Power Converters

SIMPLIFIED BLOCK DIAGRAM

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (15 pages)

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NRND LM5109 www.ti.com SNVS369 – APRIL 2005 LM5109 100V/1A Peak Half Bridge Gate Driver Check for Samples: LM5109 FEATURES PACKAGE • • • 1 2 • • • • • • • • • Drives Both a High Side and Low Side NChannel MOSFET 1A Peak Output Current (1.0A Sink / 1.
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NRND LM5109 SNVS369 – APRIL 2005 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. CONNECTION DIAGRAMS VDD 1 HI 2 LI 3 VSS 4 8 HB VDD 1 7 HO HI 2 6 HS LI 3 5 LO VSS 4 SOIC-8 8 HB 7 HO 6 HS 5 LO WSON-8 Figure 1. Table 1. PIN DESCRIPTION Pin No.
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NRND LM5109 www.ti.com SNVS369 – APRIL 2005 ABSOLUTE MAXIMUM RATINGS (1) If Military/Aerospace specified devices are required, contact the Texas Instruments Sales Office/Distributors for availability and specifications. VDD to VSS -0.3V to 18V HB to HS −0.3V to 18V −0.3V to VDD +0.3V LI or HI to VSS LO to VSS −0.3V to VDD +0.3V HO to VSS VHS −0.3V to VHB +0.
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NRND LM5109 SNVS369 – APRIL 2005 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Specifications in standard typeface are for TJ = +25°C, and those in boldface type apply over the full operating junction temperature range. Unless otherwise specified, VDD = VHB = 12V, VSS = VHS = 0V, No Load on LO or HO. Symbol Parameter VDDH VDD Threshold Hysteresis VHBR HB Rising Threshold VHBH HB Threshold Hysteresis Conditions Min (1) Typ Max (1) 0.5 VHBR = VHB - VHS 5.7 6.6 Units V 7.1 0.
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NRND LM5109 www.ti.com SNVS369 – APRIL 2005 TYPICAL PERFORMANCE CHARACTERISTICS VDD Operating Current vs Frequency spacer 100 HB Operating Current vs Frequency spacer 100 VDD = VHB = 12V VDD = VHB = 12V VSS = VHS = 0V VSS = VHS = 0V 10 10 IDDO (mA) CL = 2200 pF IDDO (mA) CL = 1000 pF CL = 1000 pF CL = 4400 pF CL = 2200 pF CL = 4400 pF 1 1 CL = 0 pF 0.1 CL = 0 pF CL = 470 pF CL = 470 pF 0.1 0.01 1 10 100 1000 1 10 FREQUENCY (kHz) 100 1000 FREQUENCY (kHz) Figure 2. Figure 3.
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NRND LM5109 SNVS369 – APRIL 2005 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) LO and HO High Level Output Voltage vs Temperature spacer 0.9 LO and HO Low Level Output Voltage vs Temperature spacer 0.5 Output Current : -100 mA VSS = VHS = 0V Output Current : -100 mA 0.8 VSS = VHS = 0V 0.7 0.4 VDD = VHB = 8V 0.6 VOL (V) VOH (V) VDD = VHB = 8V 0.5 0.3 VDD = VHB = 12V 0.4 VDD = VHB = 12V 0.3 0.2 0.2 VDD = VHB =16V VDD = VHB =16V 0.1 -40 -25 -10 5 20 35 50 65 80 95 110 125 0.
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NRND LM5109 www.ti.
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NRND LM5109 SNVS369 – APRIL 2005 www.ti.com LAYOUT CONSIDERATIONS The optimum performance of high and low side gate drivers cannot be achieved without taking due considerations during circuit board layout. Following points are emphasized. 1. A low ESR / ESL capacitor must be connected close to the IC, and between VDD and VSS pins and between HB and HS pins to support high peak currents being drawn from VDD during turn-on of the external MOSFET. 2.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 30-Oct-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant LM5109MAX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LM5109SD/NOPB WSON NGT 8 1000 178.0 12.4 4.3 4.3 1.3 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM5109MAX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LM5109SD/NOPB WSON NGT 8 1000 210.0 185.0 35.
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MECHANICAL DATA NGT0008A SDC08A (Rev A) www.ti.
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