Datasheet

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This is information on a product in full production.

July 2012 Doc ID 14493 Rev 7 1/26

L6390

High-voltage high/low-side driver

Datasheet − production data

Features

■ High-voltage rail up to 600 V

■ dV/dt immunity ±50 V/nsec in full temperature

range

■ Driver current capability:

– 290 mA source

– 430 mA sink

■ Switching times 75/35 nsec rise/fall with 1 nF

load

■ 3.3 V, 5 V TTL/CMOS inputs with hysteresis

■ Integrated bootstrap diode

■ Operational amplifier for advanced current

sensing

■ Comparator for fault protection

■ Smart shutdown function

■ Adjustable deadtime

■ Interlocking function

■ Compact and simplified layout

■ Bill of material reduction

■ Effective fault protection

■ Flexible, easy and fast design

Applications

■ Motor driver for home appliances, factory

automation, industrial drives

■ HID ballasts, power supply units

Description

The L6390 is a high-voltage device manufactured

with BCD™ “offline” technology. It is a single-chip

half bridge gate driver for N-channel Power

MOSFETs or IGBT.

The high-side (floating) section is designed to

stand a voltage rail up to 600 V. The logic inputs

are CMOS/TTL compatible down to 3.3 V for easy

microcontroller/DSP interfacing.

The IC embeds an operational amplifier suitable

for advanced current sensing in applications such

as field oriented motor control.

An integrated comparator is available for

protection against overcurrent, overtemperature,

etc.

Table 1. Device summary

Order code Package Packaging

L6390N DIP-16 Tube

L6390D SO-16 Tube

L6390DTR SO-16 Tape and reel

www.st.com

Summary of content (26 pages)

PAGE 1
L6390 High-voltage high/low-side driver Datasheet − production data Features ■ High-voltage rail up to 600 V ■ dV/dt immunity ±50 V/nsec in full temperature range ■ Driver current capability: – 290 mA source – 430 mA sink SO-16 DIP-16 ■ Switching times 75/35 nsec rise/fall with 1 nF load ■ 3.
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Contents L6390 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 4.
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L6390 1 Block diagram Block diagram Figure 1.
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Pin connection 2 L6390 Pin connection Figure 2. Table 2.
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L6390 3 Truth table Truth table Table 3. Truth table Input Note: Output SD LIN HIN LVG HVG L X X L L H H L L L H L H L L H L L H L H H H L H X: don't care.
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Electrical data L6390 4 Electrical data 4.1 Absolute maximum ratings Table 4. Absolute maximum ratings Value Symbol Parameter Unit Min. Max. Vcc Supply voltage - 0.3 21 V Vout Output voltage Vboot - 21 Vboot + 0.3 V Vboot Bootstrap voltage - 0.3 620 V Vhvg High-side gate output voltage Vout - 0.3 Vboot + 0.3 V Vlvg Low-side gate output voltage - 0.3 Vcc + 0.3 V Vop+ Op amp non-inverting input - 0.3 Vcc + 0.3 V Vop- Op amp inverting input - 0.3 Vcc + 0.
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L6390 4.3 Electrical data Recommended operating conditions Table 6. Recommended operating conditions Symbol Pin Vcc 4 VBO (1) Vout 16-14 14 Parameter Test condition Min. Max. Unit Supply voltage 12.5 20 V Floating supply voltage 12.4 20 V 580 V 800 kHz 125 °C DC output voltage fsw Switching frequency TJ Junction temperature -9 (2) HVG, LVG load CL = 1 nF -40 1. VBO = Vboot - Vout. 2. LVG off. Vcc = 12.5 V. Logic is operational if Vboot > 5 V.
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Electrical characteristics L6390 5 Electrical characteristics 5.1 AC operation Table 7. AC operation electrical characteristics (VCC = 15 V; TJ = +25 °C) Symbol Pin Parameter Test condition toff High/low-side driver turn-on 1 vs. 11 propagation delay 3 vs. 15 High/low-side driver turn-off propagation delay tsd 2 vs.
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L6390 Electrical characteristics Figure 3. Timing LIN 50% 50% tr tf 90% 90% 10% LVG 10% toff ton HIN 50% 50% tr tf 90% 90% 10% H VG 10% toff ton 50% SD tf 90% 10% LVG/H VG tsd Figure 4. Typical deadtime vs.
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Electrical characteristics L6390 5.2 DC operation Table 8. DC operation electrical characteristics (VCC = 15 V; TJ = + 25 °C) Symbol Pin Parameter Test condition Min. Typ. Max. Unit Vcc UV hysteresis 1200 1500 1800 mV Vcc_thON Vcc UV turn-ON threshold 11.5 12 12.5 V Vcc_thOFF Vcc UV turn-OFF threshold 10 10.
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L6390 Electrical characteristics Table 8. DC operation electrical characteristics (VCC = 15 V; TJ = + 25 °C) (continued) Symbol Pin Parameter Test condition Min. Typ. Max. Unit Logic inputs Vil Low level logic threshold voltage 0.8 1.1 V High level logic threshold voltage 1.9 2.25 V 0.
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Electrical characteristics Table 9. Symbol Op amp characteristics (1) (VCC = 15 V, TJ = +25 °C) Pin Parameter Test condition Input offset voltage Vio Iio Iib L6390 Min. Max. Unit 6 mV 4 40 nA 100 200 nA 0 VCC-4 V 0.07 VCC-4 V Vic = 0 V, Vo = 7.5 V Input offset current 6, 9 Input bias current Vic = 0 V, Vo = 7.5 V (2) Input common mode voltage range Vicm VOPOUT Typ.
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L6390 Waveforms definition Figure 5.
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Smart shutdown function 7 L6390 Smart shutdown function The L6390 integrates a comparator committed to the fault sensing function. The comparator has an internal voltage reference Vref connected to the inverting input, while the noninverting input is available on pin 10. The comparator input can be connected to an external shunt resistor in order to implement a simple overcurrent detection function.
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L6390 Smart shutdown function In common overcurrent protection architectures the comparator output is usually connected to the SD input and an RC network is connected to this SD/OD line in order to provide a mono-stable circuit, which implements a protection time that follows the fault condition.
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Smart shutdown function Figure 8.
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L6390 8 Typical application diagram Typical application diagram Figure 9. Application diagram BOOTSTRAP DRIVER VCC VCC 4 16 FLOATING STRUCTURE from LVG UV DETECTION UV DETECTION FROM CONTROLLER HIN H.V.
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Bootstrap driver 9 L6390 Bootstrap driver A bootstrap circuitry is needed to supply the high-voltage section. This function is normally accomplished by a high-voltage fast recovery diode (Figure 10.a). In the L6390 a patented integrated structure replaces the external diode. It is realized by a high-voltage DMOS, driven synchronously with the low-side driver (LVG), with diode in series, as shown in Figure 10.b. An internal charge pump (Figure 10.b) provides the DMOS driving voltage. 9.
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L6390 Bootstrap driver where Qgate is the gate charge of the external Power MOSFET, Rdson is the on-resistance of the bootstrap DMOS and Tcharge is the charging time of the bootstrap capacitor. For example: using a Power MOSFET with a total gate charge of 30 nC, the drop on the bootstrap DMOS is about 1 V, if the Tcharge is 5 μs. In fact: Equation 4 30nC V drop = --------------- ⋅ 120Ω ∼0.
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Package mechanical data 10 L6390 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 11. DIP-16 mechanical data mm Dim. Min. a1 0.51 B 0.77 Typ. 1.65 b 0.5 b1 0.25 D 20 E 8.5 e 2.54 e3 17.78 F 7.1 I 5.1 L 3.
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L6390 Package mechanical data Figure 11.
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Package mechanical data Table 12. L6390 SO-16 narrow mechanical data mm Dim. Min. Typ. A 1.75 A1 0.10 0.25 A2 1.25 b 0.31 0.51 c 0.17 0.25 D 9.80 9.90 10.00 E 5.80 6.00 6.20 E1 3.80 3.90 4.00 e 1.27 h 0.25 0.50 L 0.40 1.27 k 0 8° ccc 22/26 Max. 0.
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L6390 Package mechanical data Figure 12.
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Package mechanical data L6390 Figure 13.
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L6390 11 Revision history Revision history Table 13. Document revision history Date Revision Changes 29-Feb-2008 1 First release 09-Jul-2008 2 Updated: Cover page, Table 2 on page 4, Table 3 on page 5, Section 4 on page 6, Section 5 on page 8, Section 9.
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L6390 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.