February 2012Doc ID 13991 Rev 21/19
L6388E
High-voltage high and low side driver
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 ■
Dead time 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.
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Contents L6388E
Contents
1Electrical data  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2Thermal data  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3Recommended operating conditions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3Electrical characteristics  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1AC operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2DC operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4Waveform definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5Input logic  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6Bootstrap driver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.1C BOOT selection and charging  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7Typical characteristics  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 10Revision history  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/19Doc ID 13991 Rev 2
L6388E Electrical data
Doc ID 13991 Rev 23/19
1 Electrical data
1.1 Absolute maximum ratings
Note:ESD immunity for pins 6, 7, and 8 is guaranteed up to 900 V (human body model).
1.2 Thermal data
1.3 Recommended operating conditions
Table 1.
Absolute maximum ratings
Symbol Parameter
Value
Unit
Min.Max.V out Output voltage V boot  -18 V boot V V cc Supply voltage - 0.318V V boot Floating supply voltage - 0.3618V V hvg High side gate output voltage V out -0.3V boot V V lvg Low side gate output voltage -0.3 V cc  +0.3 V V i Logic input voltage -0.3 V cc  +0.3V dV out /d t Allowed output slew rate
50V/ns P tot Total power dissipation (T J  = 85 °C) 750 750 mW T j Junction temperature 150 150 °C T s
Storage temperature
-50
150
°C Table 2.
Thermal data
Symbol Parameter SO-8DIP-8Unit R th(JA)
Thermal resistance junction to ambient
150
100
°C/W
Table 3.
Recommended operating conditions
Symbol Pin Parameter
Test condition
Min.
Typ.Max.Unit
V out    6 Output voltage (1)
1.If the condition V boot  - V out < 18 V is guaranteed, V out  can range from -3 to 580 V.
580 V
V BS (2)2.V BS  = V boot  - V out .
8
Floating supply voltage (1) 17 V
f sw Switchin
g frequency HVG, LVG load C L  = 1 nF
400 kHz V cc
3 Supply voltage
17
V T J
Junction temperature
-45
125
°C
Pin connection L6388E
4/19Doc ID 13991 Rev 2
2 Pin connection
Table 4.
Pin description
N°Pin Type Function
1 LIN I Low side driver logic input 2
HIN
I
bootstrappedHigh side driver logic input
3 V cc  Low-voltage power supply
4 G ND G round
5 LV G  (1) 1.The circuit guarantees 0.3 V maximum on the pin (@ Isink = 10mA). This allows the omission of the
“bleeder” resistor connected between the gate and the source of the external MOSFET normally used to hold the pin low.
O
Low side driver output
6 OUT O
High side driver floating reference 7 HV G  (1) O
High side driver output 8 V boot
Bootstrap supply voltage
L6388E Electrical characteristics
Doc ID 13991 Rev 25/19
3 Electrical characteristics
(V CC  = 15 V; T J  = 25 °C).
3.1 AC operation
3.2 DC operation
Table 5.
AC operation electrical characteristics
Symbol Pin
Parameter
Test condition Min.
Typ.Max.Unit t on    1 vs. 52 vs. 7High/low side driver turn-on
propagation delay
V out  = 0 V 225300ns t off High/low side driver turn-off
propagation delay V out  = 0 V 160220ns t r 5, 7Rise time C L  = 1000 pF 70100ns t f 5, 7Fall time C L  = 1000 pF
4080ns DT
5, 7
Dead time
220320
420
ns
Table 6.
DC operation electrical characteristics
Symbol
Pin
Parameter
Test condition
Min.
Typ.
Max.
Unit
Low supply voltage section V ccth13
V cc  UV turn-on threshold 9.19.610.1V V ccth2V cc  UV turn-off threshold 7.98.3
8.8
V V cchys V cc  UV hysteresis 0.9
V I qccu Undervoltage quiescent
supply current V cc  ≤  9 V 250330µA I qcc Quiescent current V cc  = 15 V 350450
µA R DS(on)
Bootstrap driver on resistance (1)
V cc ≥ 12.5 V
125
Ω
Bootstrapped supply voltage section V BSth18
V BS  UV turn-on threshold 8.59.510.5V V BSth2V BS  UV turn-off threshold 7.28.2
9.2
V V BShys V BS  UV hysteresis 0.9
V I Q BS V BS  quiescent current HVG ON 250µA I LK
High-voltage leakage current
V hvg  = V out  = V boot = 600 V
10
µA

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