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Details, datasheet, quote on part number:TPS2836DR
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| Part: | TPS2836DR |
| Category: | Power Management => Power Distribution/Switches => MOSFET Drivers => MOSFET and Power Drivers |
| Description: | ti TPS2836, Non-inverting Fast Synchronous Buck MOSFETs Driver With TTL Inputs |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download TPS2836DR datasheet File size : 192 kB |
| Request For quote: | Find where to buy TPS2836DR
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Datasheet text preview:
TPS2836, TPS2837 SYNCHRONOUS-BUCK MOSFET DRIVER WITH DEAD-TIME CONTROL
SLVS224B NOVEMBER 1999 REVISED AUGUST 2002
D Floating Bootstrap or Ground-Reference D D D D D D D D D
High-Side Driver Adaptive Dead-Time Control 50-ns Max Rise/Fall Times With 3.3-nF Load 2.4-A Typical Output Current 4.5-V to 15-V Supply Voltage Range TTL-Compatible Inputs Internal Schottky Bootstrap Diode Low Supply Current....3 mA Typical Ideal for High-Current Single or Multiphase Power Supplies 40°C to 125°C Operating Virtual Junction-Temperature Range
IN PGND DT VCC
D PACKAGE (TOP VIEW) 1 2 3 4 8 7 6 5
BOOT HIGHDR BOOTLO LOWDR
description
The TPS2836 and TPS2837 are MOSFET drivers for synchronous-buck power stages. These devices are ideal for designing a high-performance power supply using switching controllers that do not have MOSFET drivers. The drivers are designed to deliver minimum 2-A peak currents into large capacitive loads. The high-side driver can be configured as ground-reference or as floating-bootstrap. An adaptive dead-time control circuit eliminates shoot-through currents through the main power FETs during switching transitions and provides high efficiency for the buck regulator. The TPS2836 has a noninverting input, while the TPS2837 has an inverting input. These drivers, available in 8-terminal SOIC packages, operate over a junction temperature range of 40°C to 125°C.
AVAILABLE OPTIONS PACKAGED DEVICES TJ 40°C to 125°C SOIC (D) TPS2836D TPS2837D
The D package is available taped and reeled. Add R suffix to device type (e.g., TPS2836DR)
Related Synchronous MOS FET Drivers
DEVICE NAME TPS2830 TPS2831 TPS2832 TPS2833 TPS2834 TPS2835 ENABLE, SYNC and CROWBAR SYNC and CROWBAR TTL W/O ENABLE SYNC and CROWBAR ENABLE, SYNC and CROWBAR CMOS ENABLE, SYNC and CROWBAR SYNC and CROWBAR CMOS ADDITIONAL FEATURES INPUTS Noninverted Inverted Noninverted Inverted Noninverted Inverted
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.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright 2002, Texas Instruments Incorporated
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TPS2836, TPS2837 SYNCHRONOUS-BUCK MOSFET DRIVER WITH DEAD-TIME CONTROL
SLVS224B NOVEMBER 1999 REVISED AUGUST 2002
functional block diagram
4 VCC BOOT
8 1 M (TPS2836 Only) 250 k 6 1 IN VCC (TPS2837 Only) 5 250 k 2 3 DT 7
HIGHDR
BOOTLO
LOWDR
PGND
Terminal Functions
TERMINAL NAME BOOT BOOTLO DT HIGHDR IN LOWDR PGND VCC NO. 8 6 3 7 1 5 2 4 I I/O I O I O I O DESCRIPTION Bootstrap terminal. A ceramic capacitor is connected between BOOT and BOOTLO to develop the floating bootstrap voltage for the high-side MOSFET. The capacitor value is typically between 0.1 µF and 1 µF. This terminal connects to the junction of the high-side and low-side MOSFETs. Dead-time control terminal. Connect DT to the junction of the high-side and low-side MOSFETs Output drive for the high-side power MOSFET Input signal to the MOSFET drivers (noninverting input for the TPS2836; inverting input for the TPS2837). Output drive for the low-side power MOSFET Power ground. Connect to the FET power ground. Input supply. Recommended that a 1 µF capacitor be connected from VCC to PGND.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TPS2836, TPS2837 SYNCHRONOUS-BUCK MOSFET DRIVER WITH DEAD-TIME CONTROL
SLVS224B NOVEMBER 1999 REVISED AUGUST 2002
detailed description
low-side driver The low-side driver is designed to drive low rDS(on) N-channel MOSFETs. The current rating of the driver is 2 A, source and sink. high-side driver The high-side driver is designed to drive low rDS(on) N-channel MOSFETs. The current rating of the driver is 2 A, source and sink. The high-side driver can be configured as a ground-reference driver or a floating bootstrap driver. The internal bootstrap diode is a Schottky for improved drive efficiency. The maximum voltage that can be applied between the BOOT terminal and ground is 30 V. dead-time (DT) control Dead-time control prevents shoot-through current from flowing through the main power FETs during switching transitions by controlling the turnon times of the MOSFET drivers. The high-side driver is not allowed to turn on until the gate drive voltage to the low-side FET is low, and the low-side driver is not allowed to turn on until the voltage at the junction of the power FETs (Vdrain) is low; the TTL-compatible DT terminal connects to the junction of the power FETs. IN The IN terminal is a TTL-compatible digital terminal that is the input control signal for the drivers. The TPS2836 has a noninverting input; the TPS2837 has an inverting input.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 16 V Input voltage range: BOOT to PGND (high-side driver ON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 30 V BOOTLO to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 16 V BOOT to BOOTLO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 16 V IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 16 V DT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 30 V Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 125°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . 260°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: Unless otherwise specified, all voltages are with respect to PGND. DISSIPATION RATING TABLE PACKAGE D TA 25°C POWER RATING 600 mW DERATING FACTOR ABOVE TA = 25°C 6.0 mW/°C TA = 70°C POWER RATING 330 mW TA = 85°C POWER RATING 240 mW
recommended operating conditions
MIN Supply voltage, VCC Input voltage BOOT to PGND 4.5 4.5 NOM MAX 15 28 UNIT V V
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