Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsPMICsPMIC - gate drivers Non-inverting High side, Low side, Sychronous SO 8

This is information on a product in full production.

January 2013 Doc ID 13991 Rev 3 1/19

L6388E

High voltage high and 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:

– 400 mA source

– 650 mA sink

■ Switching times 70/40 nsec rise/fall with 1nF

load

■ 3.3 V, 5 V, 15 V CMOS/TTL input comparators

with hysteresis and pull-down

■ Internal bootstrap diode

■ Outputs in phase with inputs

■ Deadtime and interlocking function

Description

The L6388E is a high voltage device,

manufactured with the BCD™ “offline” technology.

It has a driver structure that enables the driving of

independent referenced N-channel Power

MOSFETs or IGBTs. The high-side (floating)

section is enabled to work with voltage rail up to

600 V.

The logic inputs are CMOS/TTL compatible to

ease the interfacing with controlling devices.

DIP-8 SO-8

Figure 1. Block diagram

LOGIC

DETECTION

LEVEL

SHIFTER

BOOTSTRAP DRIVER

LVG

DRIVER

HIN

LIN

HVG

DRIVER

HVG

H.V.

TO LOAD

OUT

LVG

GND

Vboot

Cboot

SHOOT

THROUGH

PREVENTION

DETECTION

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Summary of content (19 pages)

PAGE 1
L6388E High voltage high and 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: – 400 mA source – 650 mA sink Description ■ Switching times 70/40 nsec rise/fall with 1nF load The L6388E is a high voltage device, manufactured with the BCD™ “offline” technology. ■ 3.
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Contents L6388E Contents 1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin connection . . . . . . . . . . . . . . . . .
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L6388E Electrical data 1 Electrical data 1.1 Absolute maximum ratings Table 1. Absolute maximum ratings Value Symbol Parameter Unit Min. Max. Vout Output voltage Vboot -18 Vboot V Vcc Supply voltage - 0.3 18 V Vboot Floating supply voltage - 0.3 618 V Vhvg High-side gate output voltage Vout -0.3 Vboot V Vlvg Low-side gate output voltage -0.3 Vcc +0.3 V Logic input voltage -0.3 Vcc +0.
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Pin connection 2 L6388E Pin connection Figure 2. Pin connection (top view) LIN 1 8 Vboot HIN 2 7 HVG VCC 3 6 OUT GND 4 5 LVG D97IN517A Table 4. Pin description N° Pin Type Function 1 LIN I Low-side driver logic input 2 HIN I High-side driver logic input 3 Vcc 4 GND 5 LVG (1) O Low-side driver output 6 OUT O High-side driver floating reference 7 HVG (1) O High-side driver output 8 Vboot Low-voltage power supply Ground Bootstrap supply voltage 1.
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L6388E 3 Electrical characteristics Electrical characteristics (VCC = 15 V; TJ = 25 °C). 3.1 AC operation Table 5. Symbol ton toff 3.2 AC operation electrical characteristics Pin Parameter Test condition High/low-side driver turn-on 1 vs. 5 propagation delay 2 vs. 7 High/low-side driver turn-off propagation delay Min. Typ. Max.
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Electrical characteristics Table 6. Symbol Iso L6388E DC operation electrical characteristics (continued) Pin Parameter Test condition Min. Typ. Source short-circuit current VIN = Vih (tp < 10 μs) 300 400 mA Sink short-circuit current VIN = Vil (tp < 10 μs) 500 650 mA 5,7 Isi Max. Unit Logic inputs Low logic level input voltage Vil Vih 1.1 High logic level input voltage 1.8 High logic level input current VIN = 15 V Iil Low logic level input current VIN = 0 V 20 -1 1.
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L6388E Waveform definitions Figure 3. Dead time waveform definition LIN H IN DT DT LVG DT Interlocking function 4 Waveform definitions HVG Figure 4.
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Input logic 5 L6388E Input logic Input logic is provided with an interlocking circuitry which avoids the two outputs (LVG, HVG) being active at the same time when both the logic input pins (LIN, HIN) are at a high logic level. In addition, to prevent cross conduction of the external MOSFETs, after each output is turned off, the other output cannot be turned on before a certain amount of time (DT) (see Figure 3). 6 Bootstrap driver A bootstrap circuitry is needed to supply the high voltage section.
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L6388E Bootstrap driver The following equation is useful to compute the drop on the bootstrap DMOS: Equation 2 Q gate V drop = Ich arg e R dson →V drop = ------------------- R dson Tch arg e where Qgate is the gate charge of the external Power MOSFET, RDS(on) 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.
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Bootstrap driver Figure 5. L6388E Bootstrap driver DBOOT VS VBOOT H.V. HVG CBOOT VOUT TO LOAD LVG a VBOOT VS H.V.
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L6388E Typical characteristics Figure 6. Typical rise and fall times vs. Figure 7. load capacitance time (nsec) D99IN1054 Quiescent current vs. supply voltage Iq (μA) 104 250 D99IN1055 200 Tr 103 150 Tf 100 102 50 10 0 0 1 2 3 4 5 C (nF) For both high and low side buffers @25˚C Tamb Figure 8. VBOOT UV turn-on threshold vs. temperature 2 0 4 Figure 9. 6 8 10 12 14 16 VS(V) VCC UV turn-off threshold vs. temperature 11 13 @ Vcc = 15V 12 10 10 Typ.
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Typical characteristics L6388E Figure 12. VCC UV turn-on threshold vs. Figure 13. Output sink current vs. temperature temperature 13 1000 @ Vcc = 15V 800 11 current (mA) Vccth1(V) 12 10 9 Typ. Typ.
PAGE 13
L6388E 8 Package mechanical data 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 7. DIP-8 mechanical data mm Dim. Min. A Typ. Max. 3.32 a1 0.51 B 1.15 1.65 b 0.356 0.55 b1 0.204 0.304 D E 10.92 7.95 9.75 e 2.54 e3 7.
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Package mechanical data L6388E Figure 14.
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L6388E Package mechanical data Table 8. SO-8 mechanical data mm Dim. Min. Typ. A Max. 1.75 A1 0.10 0.25 A2 1.25 b 0.28 0.48 c 0.17 0.23 D 4.80 4.90 5.00 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 L1 k 1.04 0° 8° ccc 0.
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Package mechanical data L6388E Figure 15.
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L6388E 9 Ordering information Ordering information Table 9.
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Revision history 10 L6388E Revision history Table 10. 18/19 Document revision history Date Revision Changes 11-Oct-2007 1 First release 29-Feb-2012 2 Updated Table 1, Table 6 and Section 6.1. DIP-8 mechanical data and package dimensions have been updated. SO-8 mechanical data and package dimensions have been updated. 31-Jan-2013 3 Update note in Section 1.1.
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L6388E 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.