TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
Table 1. Bill of Materials
REF DES PART NO. DESCRIPTION MFR
U1 TPS2817DBV IC, MOSFET driver, single noninverting TI
U2 TL5001CD IC, PWM controller TI
Q1 TPS1110D MOSFET, p-channel, 6 A, 7 V, 75 mΩ TI
C1, C2, C5, C8 Capacitor, ceramic, 0.1 µF, 50 V, X7R, 1206
C3 Capacitor, ceramic, 0.033 µF, 50 V, X7R, 1206
C4 Capacitor, ceramic, 2200 pF, 50 V, X7R, 0805
C6 ECS-T1CY105R Capacitor, tantalum, 1.0 µF, 16 V, A case Panasonic
C7 10SC47M Capacitor, OS-Con, 47 µF, 10 V Sanyo
C9 Capacitor, ceramic, 1000 pF, 50 V, X7R, 0805
C10, C12 10SA220M Capacitor, OS-Con, 220 µF, 10 V Sanyo
C11 Capacitor, ceramic, 0.022 µF, 50 V, X7R, 0805
C13 Capacitor, ceramic, 47 µF, 50 V, X7R
CR1 50WQ03F Diode, Shottky, D-pak, 5 A 30 V IR
L1 SML3723 Inductor, 27 µH, +/– 20%, 3 A Nova Magnetics
R1 Resistor, CF, 47 kΩ, 1/10 W , 5%, 0805
R2 Resistor, CF, 1.5 kΩ, 1/10 W , 5%, 0805
R3 Resistor, MF, 30.1 kΩ, 1/10 W , 1%, 0805
R4 Resistor, MF, 1.00 kΩ, 1/10 W , 1%, 0805
R5 Resistor, CF, 47 Ω, 1/10 W , 5%, 0805
R6 (3.3-V) Resistor, MF, 2.32 kΩ, 1/10 W, 1%, 0805
R6 (2.5-V) Resistor, MF, 1.50 kΩ, 1/10 W, 1%, 0805
R7 Resistor, CF, 100 Ω, 1/10 W , 5% , 0805
As shown in Figures 24 and 25, the TPS2817 turns on the TPS1 110 power switch in less than 20 ns and off in
25 ns.
2 V/div
2 V/div
12.5 ns/div
Q1 Gate
Q1 Drain
Figure 24. Q1 Turn-On Waveform
2 V/div
2 V/div
12.5 ns/div
Q1 Drain
Q1 Gate
Figure 25. Q1 Turn-Off Waveform