High-voltage high side driver High voltage rail 600V dV/dt immuni

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High-voltage high side driver High voltage rail 600V dV/dt immuni

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L6385E
High-voltage high side driver
High voltage rail 600V dV/dt immunity ±50V/nsec full temperature range Driver current capability: 400mA source, 650mA 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 Internal bootstrap diode Outputs phase with inputs
DIP-8 SO-8
Description
L6385E high-voltage device, manufactured with BCD"OFF-LINE" technology. Half Bridge Driver structure that enables drive independent referenced Channel Power IGBT. High Side (Floating) Section enabled work with voltage Rail 600V. Logic Inputs CMOS/TTL compatible ease interfacing with controlling devices.
Figure
Block diagram
BOOTSTRAP DRIVER
Vboot H.V. Cboot
DETECTION
DETECTION
DRIVER
LOGIC
LEVEL SHIFTER
DRIVER LOAD
D97IN514B
October 2007
1/16
www.st.com
Contents
L6385E
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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L6385E
Electrical data
Electrical data
Absolute maximum ratings
Table
Symbol Vout Vboot Vhvg Vlvg dVout/dt Ptot Output voltage Supply voltage Floating supply voltage High sidegate output voltage side gate output voltage Logic 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 Unit V/ns
Note:
immunity pins guaranteed (Human Body Model)
Thermal data
Table
Symbol Rth(JA)
Thermal data
Parameter Thermal Resistance Junction ambient SO-8 DIP-8 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 580V Vboot Vout
3/16
connection
L6385E
connection
Figure connection (Top view)
D97IN517A
Vboot
Table
description
VOUT Vboot Type side driver logic input High side driver logic input voltage power supply Ground side driver output High side driver floating reference High side driver output Bootstrap supply voltage Function
circuit guarantees 0.3V maximum Isink 10mA). This allows omit "bleeder" resistor connected between gate source external MOSFET normally used hold low.
4/16
L6385E
Electrical characteristics
Electrical characteristics
operation
Table
Symbol toff
operation electrical characteristcs (VCC 15V; 25°C)
Parameter Test condition Vout Vout 1000pF 1000pF Unit
High/low side driver turn-on propagation delay High/low side driver turn-off propagation delay Rise time Fall time
operation
Table
Symbol
operation electrical characteristcs (VCC 15V; 25°C)
Parameter Test condition Unit
supply voltage section Vccth1 Vccth2 Vcchys Iqccu Iqcc Rdson Supply voltage turn threshold turn threshold hysteresis Undervoltage quiescent supply current Quiescent current Bootstrap driver resistance 12.5V 10.1
Bootstrapped supply voltage section VBSth1 VBSth2 VBShys IQBS Bootstrap supply voltage turn threshold turn threshold hysteresis quiescent current High voltage leakage current Vhvg Vout Vboot 600V 10.5
High/low side driver Source short circuit current Sink short circuit current 10µs) 10µs) 5/16
Electrical characteristics Table
Symbol
L6385E
operation electrical characteristcs (continued)(VCC 15V; 25°C)
Parameter Test condition Unit
Logic inputs High level logic threshold voltage High level logic input current level logic input current level logic threshold voltage
RDS(on) tested following way:
CBOOT1 CBOOT2 DSON CBOOT1 CBOOT2
where current when VCBOOT VCBOOT1, when VCBOOT VCBOOT2
Timing diagram
Figure Input/output timing diagram
D99IN1053
6/16
L6385E
Bootstrap driver
Bootstrap driver
bootstrap circuitry needed supply high voltage section. This function normally accomplished high voltage fast recovery diode (Figure L6385E 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 30nC Vgate 10V, CEXT 3nF. With CBOOT 100nF drop would 300mV. supplied long time, CBOOT selection take into account also leakage losses. e.g.: steady state consumption lower than 200µA, 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 RDSON (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.
7/16
Bootstrap driver
L6385E
example: using power with total gate charge 30nC drop bootstrap DMOS about Tcharge 5µs. 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
8/16
L6385E
Typical characteristic
Typical characteristic
Figure
time (nsec)
Typical rise fall times load capacitance
D99IN1054
Figure
(µA)
Quiescent current supply voltage
D99IN1055
(nF) both high side buffers @25°C Tamb
VS(V)
Figure
Turn time temperature
Figure
Turn time temperature
(ns)
Toff (ns) Typ. (°C)
Typ. (°C)
Figure
VBOOT turn threshold Figure turn threshold temperature temperature
Vbth1 (°C) Typ.
Vccth2(V)
Typ.
(°C)
9/16
Typical characteristic
L6385E
Figure VBOOT turn threshold temperature
Vbth2 Typ.
Figure Output source current temperature
1000
current (mA)
Typ.
(°C)
Figure turn threshold Figure Output sink current temperature temperature
Vccth1(V) (°C) Typ.
1000
current (mA) (°C)
Typ.
10/16
L6385E
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
11/16
Package mechanical data Figure DIP-8 mechanical data package dimensions
DIM. MIN. 3.18 7.95 2.54 7.62 7.62 5.08 3.81 1.52 0.125 0.51 1.15 0.356 0.204 1.65 0.55 0.304 10.92 9.75 0.313 0.100 0.300 0.300 0.260 0.200 0.150 0.060 TYP. 3.32 0.020 0.045 0.014 0.008 0.065 0.022 0.012 0.430 0.384 MAX. MIN. TYP. 0.131 MAX. inch
L6385E
OUTLINE MECHANICAL DATA
DIP-8
12/16
L6385E Figure SO-8 mechanical data package dimensions
DIM. MIN.
Package mechanical data
inch MAX. 1.750 MIN. TYP. MAX. 0.0689 0.0098
TYP.
OUTLINE MECHANICAL DATA
0.100 1.250 0.280 0.170 4.800 5.800 3.800 4.900 6.000 3.900 1.270 0.250 0.400 1.040
0.250 0.0039 0.0492 0.480 0.0110 0.230 0.0067
0.0189 0.0091
5.000 0.1890 0.1929 0.1969 6.200 0.2283 0.2362 0.2441 4.000 0.1496 0.1535 0.1575 0.0500 0.500 0.0098 1.270 0.0157 0.0409 0.100 0.0039 0.0197 0.0500
E1(2)
Notes: Dimensions does include mold flash, protrusions gate burrs. Mold flash, potrusions gate burrs shall exceed 0.15mm total (both side). Dimension "E1" does include interlead flash protrusions. Interlead flash protrusions shall exceed 0.25mm side.
SO-8
0016023
13/16
Order codes
L6385E
Order codes
Table Order codes
Part number L6385E L6385ED L6385ED013TR Package DIP-8 SO-8 SO-8 Packaging Tube Tube Tape reel
14/16
L6385E
Revision history
Revision history
Table
Date 11-Oct-2007
Document revision history
Revision First release Changes
15/16
L6385E
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High-voltage high side driver High voltage rail 600V dV/dt immuni

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