High-voltage high side driver High voltage rail dV/dt immunity V/

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High-voltage high side driver High voltage rail dV/dt immunity V/

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L6386AD
High-voltage high side driver
High voltage rail dV/dt immunity V/nsec full temperature range Driver current capability: source, sink Switching times 50/30 nsec rise/fall with load CMOS/TTL Schmitt trigger inputs with hysteresis pull down Under voltage lock lower upper driving section Integrated bootstrap diode Outputs phase with inputs
SO-14
Description
L6386AD high-voltage device, manufactured with "OFF-LINE" technology. driver structure that enables drive independent referenced Channel Power IGBT. high-side (floating) section enabled work with voltage rail Logic Inputs CMOS/TTL compatible ease interfacing with controlling devices.
Figure
Block diagram
BOOTSTRAP DRIVER DETECTION DETECTION H.V. LEVEL SHIFTER LOGIC DRIVER DRIVER VREF PGND DIAG LOAD Vboot CBOOT
SGND
July 2008
D97IN520D
1/17
www.st.com
Contents
L6386AD
Contents
Electrical data
Absolute maximum ratings Thermal data Recommended operating conditions
connection Electrical characteristics
operation operation Timing diagram
Bootstrap driver
CBOOT selection charging
Typical characteristic Package mechanical data Order codes Revision history
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L6386AD
Electrical data
Electrical data
Absolute maximum ratings
Table
Symbol Vout Vboot Vhvg Vlvg Vdiag Vcin dVout/dt Ptot Tstg Output voltage Supply voltage Floating supply voltage High-side gate output voltage Low-side gate output voltage Logic input voltage Open drain forced voltage Comparator input voltage Allowed output slew rate Total power dissipation Junction temperature Storage temperature
Absolute maximum ratings
Parameter Value Vboot Vboot -0.3 +0.3 -0.3 +0.3 -0.3 +0.3 -0.3 Unit V/ns
Note:
immunity pins guaranteed 900V (Human Body Model)
Thermal data
Table
Symbol Rth(JA)
Thermal data
Parameter Thermal Resistance Junction ambient SO-14 Unit °C/W
Recommended operating conditions
Table
Symbol Vout
Recommended operating conditions
Parameter Output voltage Floating supply voltage Switching frequency Supply voltage Junction temperature HVG,LVG load Test condition
Unit
condition Vboot Vout guaranteed, Vout range from Vboot Vout
3/17
connection
L6386AD
connection
Figure connection (Top view)
DIAG SGND
D97IN521A
Vboot N.C. N.C. PGND
Table
description
SD(1) DIAG SGND PGND N.C.
Type Low-side driver logic input Shut down logic input High-side driver logic input voltage supply Open drain diagnostic output Comparator input Ground Power ground Low-side driver output connected High-side driver floating driver High-side driver output Bootstrapped supply voltage
Function
Vboot
circuit guarantees 0.3V maximum Isink mA), with >3V. This allows omit "bleeder" resistor connected between gate source external MOSFET normally used hold low; gate driver assures impedance also condition.
4/17
L6386AD
Electrical characteristics
Electrical characteristics
operation
Table
Symbol toff operation electrical characteristcs (VCC Parameter Test condition Vout 1000 1000 Unit
High/low-side driver turn-on propagation delay 9,13 High/low-side driver turn-off propagation delay 9,13 Fall time Shut down high/low side propagation delay Rise time
operation
Table
Symbol operation electrical characteristcs (VCC Parameter Test condition Unit
supply voltage section Vccth1 Vccth2 Vcchys Iqccu Iqcc turn threshold turn threshold hysteresis Undervoltage quiescent supply current Quiescent current 10.1
Bootstrapped supply section Vbth1 Vbth2 Vbhys Iqboot RDS(on) Vboot turn threshold Vboot turn threshold Vboot hysteresis Vboot quiescent current High voltage leakage current Bootstrap driver resistance Vhvg Vout Vboot 12.5 10.5
5/17
Electrical characteristics Table
Symbol
L6386AD
operation electrical characteristcs (continued)(VCC Parameter Test condition Unit
Driving buffers section High/low side source short circuit current High/low side sink short circuit current
Logic inputs level logic voltage 1,2, High level logic voltage High level logic input current level logic input current
Sense comparator Vref Input offset voltage Input bias current Open drain level output voltage Comparator reference voltage Vcin -2.5 0.46 0.50 0.54
RDS(on) tested following way:
CBOOT1 CBOOT2 DSON CBOOT1 CBOOT2
where current when VCBOOT VCBOOT1, when VCBOOT VCBOOT2
6/17
L6386AD
Electrical characteristics
Timing diagram
Figure Input/output timing diagram
HOUT LOUT
VREF VCIN
DIAG
Note: active condition latched until next negative edge.
D97IN522A
7/17
Bootstrap driver
L6386AD
Bootstrap driver
bootstrap circuitry needed supply high voltage section. This function normally accomplished high voltage fast recovery diode (Figure L6386AD patented integrated structure replaces external diode. realized high voltage DMOS, driven synchronously with side driver (LVG), with series diode, shown Figure internal charge pump (Figure provides DMOS driving voltage. diode connected series DMOS been added avoid undesirable turn
CBOOT selection charging
choose proper CBOOT value external seen equivalent capacitor. This capacitor CEXT related total gate charge:
gate gate
ratio between capacitors CEXT CBOOT proportional cyclical voltage loss.
CBOOT>>>CEXT
e.g.: Qgate Vgate CEXT With CBOOT drop would supplied long time, CBOOT selection take into account also leakage losses. e.g.: steady state consumption lower than 5ms, CBOOT supply CEXT. This charge capacitor means voltage drop internal bootstrap driver gives great advantages: external fast recovery diode avoided usually great leakage current). This structure work only VOUT close lower) meanwhile charging time (Tcharge CBOOT time which both conditions fulfilled long enough charge capacitor. bootstrap driver introduces voltage drop DMOS RDS(on) (typical value: frequency this drop neglected. Anyway increasing frequency must taken account. following equation useful compute drop bootstrap DMOS:
gate drop dson drop dson
where Qgate gate charge external power MOS, Rdson resistance bootstrap DMOS, Tcharge charging time bootstrap capacitor.
8/17
L6386AD
Bootstrap driver example: using power with total gate charge drop bootstrap DMOS about Tcharge fact:
30nC drop 0.8V
Vdrop taken into account when voltage drop CBOOT calculated: this drop high, circuit topology doesn't allow sufficient charging time, external diode used. Figure Bootstrap driver
DBOOT
VBOOT H.V.
VBOOT H.V.
CBOOT VOUT LOAD
CBOOT VOUT LOAD
D99IN1056
9/17
Typical characteristic
L6386AD
Typical characteristic
Figure Typical rise fall times load capacitance
D99IN1054
Figure
(µA)
Quiescent current supply voltage
D99IN1057
time (nsec)
(nF) both high side buffers @25°C Tamb
VS(V)
Figure
Turn time temperature
Figure
VBOOT turn threshold temperature
Vbth1
Typ.
(ns)
Typ. (°C)
(°C)
Figure
Turn time temperature Figure VBOOT turn threshold temperature
Vbth2
Typ.
Toff (ns)
Typ. (°C)
(°C)
10/17
L6386AD Figure Shutdown time temperature
Typical characteristic Figure VBOOT hysteresis
(°C)
Typ.
Vbhys Typ.
(ns0
(°C)
Figure turn threshold temperature
Vccth1(V) (°C) Typ.
Figure Output source current temperature
1000
current (mA) Typ. (°C)
Figure turn threshold temperature
Typ.
Figure Output sink current temperature
1000
current (mA)
Typ.
Vccth2(V)
(°C)
(°C)
11/17
Typical characteristic
L6386AD
Figure hysteresis temperature
Vcchys
Typ.
(°C)
12/17
L6386AD
Package mechanical data
Package mechanical data
order meet environmental requirements, offers these devices ECOPACK® packages. These packages have lead-free second level interconnect category second level interconnect marked package inner label, compliance with JEDEC Standard JESD97. maximum ratings related soldering conditions also marked inner label. ECOPACK trademark. ECOPACK specifications available www.st.com
13/17
Package mechanical data Figure SO-14 mechanical data package dimensions
DIM. MIN. 0.25 0.40 1.35 0.10 1.10 0.33 0.19 8.55 3.80 1.27 6.20 0.50 1.27 0.228 0.01 0.016 TYP. MAX. 1.75 0.30 1.65 0.51 0.25 8.75 MIN. 0.053 0.004 0.043 0.013 0.007 0.337 0.150 0.050 0.244 0.02 0.050 TYP. MAX. 0.069 0.012 0.065 0.020 0.01 0.344 0.157 inch
L6386AD
OUTLINE MECHANICAL DATA
(min.), (max.) 0.10 0.004
dimension does include mold flash, protusions gate burrs. Mold flash, protusions gate burrs shall exceed 0.15mm side.
SO-14
0016019
14/17
L6386AD
Order codes
Order codes
Table Order codes
Order codes L6386AD L6386AD013TR Package SO-14 SO-14 Packaging Tube Tape reel
15/17
Revision history
L6386AD
Revision history
Table
Date 14-Jul-2008
Document revision history
Revision First release Changes
16/17
L6386AD
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High-voltage high side driver High voltage rail dV/dt immunity V/

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