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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L6388E
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 70/40 nsec rise/fall with load 3.3V, CMOS/TTL inputs comparators with hysteresys pull down Internal bootstrap diode Outputs phase with inputs Dead time interlocking function
DIP-8 SO-8
Description
L6388E high-voltage device, manufactured with BCD"OFF-LINE" technology. 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 LOGIC
DETECTION
DRIVER
SHOOT THROUGH PREVENTION
LEVEL SHIFTER
DRIVER LOAD
October 2007
1/18
www.st.com
Contents
L6388E
Contents
Electrical data
Absolute maximum ratings Thermal data Recommended operating conditions
connection Electrical characteristics
operation operation
Waveforms definitions Input logic Bootstrap driver
CBOOT
selection charging
Typical characteristic Package mechanical data Order codes Revision history
2/18
L6388E
Electrical data
Electrical data
Absolute maximum ratings
Table
Symbol Vout Vboot Vhvg Vlvg dVout/dt Ptot Output voltage Supply voltage Floating supply voltage High side gate 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
3/18
connection
L6388E
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.
4/18
L6388E
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 Dead time
operation
Table
Symbol
operation electrical characteristcs (VCC 15V; 25°C)
Parameter Test condition Unit
supply voltage section Vccth1 Vccth2 Vcchys Iqccu Iqcc Rdson 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 turn threshold turn threshold hysteresis quiescent current High voltage leakage current Vhvg Vout Vboot 600V 10.5
5/18
Electrical characteristics Table
Symbol
L6388E
operation electrical characteristcs (continued)(VCC 15V; 25°C)
Parameter Test condition Unit
High/low side driver Logic inputs High level logic input current level logic input current level logic input voltage High level logic input voltage Source short circuit current Sink short circuit current 10µs) 10µs)
RDS(on) tested following way:
CBOOT1 CBOOT2 DSON CBOOT1 CBOOT2
where current when VCBOOT VCBOOT1, when VCBOOT VCBOOT2
6/18
L6388E
Waveforms definitions
Waveforms definitions
Figure Dead time waveforms definitions
Figure
Propagation delay waveform definitions
Interlocking function
7/18
Input logic
L6388E
Input logic
Input logic provided with interlocking circuitry which avoids outputs (LVG, HVG) active same time when both logic input pins (LIN, HIN) high logic level. addition, prevent cross conduction external MOSFETs, after each output turned-off other output cannot turned-on before certain amount time (DT) (see Figure
Bootstrap driver
bootstrap circuitry needed supply high voltage section. This function normally accomplished high voltage fast recovery diode (Figure L6388E 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.
8/18
L6388E
Bootstrap driver 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. 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.
9/18
Bootstrap driver Figure Bootstrap driver
DBOOT
L6388E
VBOOT H.V.
CBOOT VOUT LOAD
VBOOT H.V.
CBOOT VOUT LOAD
10/18
L6388E
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
VBOOT turn threshold temperature
Figure
turn threshold temperature
VBSth1(V)
Typ.
Vccth2(V)
Typ.
(°C)
(°C)
Figure VBOOT turn threshold temperature
Figure Output source current temperature
1000
current (mA)
Typ.
VBSth2(V)
Typ.
(°C)
11/18
Typical characteristic
L6388E
Figure turn threshold temperature
Figure Output sink current temperature
1000
current (mA)
Vccth1(V)
(°C)
Typ.
Typ.
(°C)
12/18
L6388E
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
13/18
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
L6388E
OUTLINE MECHANICAL DATA
DIP-8
14/18
L6388E 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
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
15/18
Order codes
L6388E
Order codes
Table Order codes
Part number L6388E L6388ED L6388ED013TR Package DIP-8 SO-8 SO-8 Packaging Tube Tube Tape reel
16/18
L6388E
Revision history
Revision history
Table
Date 11-Oct-2007
Document revision history
Revision First release Changes
17/18
L6388E
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High-voltage high side driver High voltage rail 600V dV/dt immuni

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