ST L6386AD User Manual

L6386AD

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 50/30 nsec rise/fall with 1nF load

■CMOS/TTL Schmitt trigger inputs with hysteresis and pull down

■Under voltage lock out on lower and upper driving section

■Integrated bootstrap diode

■Outputs in phase with inputs

SO-14

Description

The L6386AD is an high-voltage device, manufactured with the BCD "OFF-LINE" technology. It has a driver structure that enables to drive independent referenced Channel Power MOS or IGBT. The high-side (floating) section is enabled to work with voltage rail up to 600 V. The Logic Inputs are CMOS/TTL compatible for ease of interfacing with controlling devices.

Figure 1. Block diagram

			BOOTSTRAP DRIVER			Vboot
					14	CBOOT
	VCC	UV	UV
					HVG	H.V.
	4	DETECTION	DETECTION	R
					DRIVER	HVG
				R
					13
	3			S
			LEVEL			OUT
	HIN
			SHIFTER
					12
						TO LOAD
			LOGIC		VCC
	2					LVG
	SD				9
					LVG	PGND
					DRIVER
	1				8
	LIN					DIAG
			VREF	-	5
	SGND			+
	7				6	CIN
					D97IN520D
	July 2008		Rev 1			1/17
						www.st.com

Contents	L6386AD

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		4
3	Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		5
	3.1	AC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
	3.2	DC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
	3.3	Timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7
4	Bootstrap driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		8
	4.1	CBOOT selection and charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
5	Typical characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		10
6	Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		13
7	Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		15
8	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		16

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L6386AD	Electrical data

1 Electrical data

1.1Absolute maximum ratings

	Table 1.	Absolute maximum ratings
	Symbol	Parameter	Value		Unit
	Vout	Output voltage	-3 to Vboot - 18		V
	Vcc	Supply voltage	- 0.3 to +18		V
	Vboot	Floating supply voltage	-1 to 618		V
	Vhvg	High-side gate output voltage	- 1 to Vboot		V
	Vlvg	Low-side gate output voltage	-0.3 to Vcc +0.3		V
	Vi	Logic input voltage	-0.3 to Vcc +0.3		V
	Vdiag	Open drain forced voltage	-0.3 to Vcc +0.3		V
	Vcin	Comparator input voltage	-0.3 to 10 V		V
	dVout/dt	Allowed output slew rate	50		V/ns
	Ptot	Total power dissipation (TJ = 85 °C)	750		mW
	Tj	Junction temperature	150		°C
	Tstg	Storage temperature	-50 to 150		°C
Note:	ESD immunity for pins 12, 13 and 14 is guaranteed up to 900V (Human Body Model)

1.2Thermal data

Table 2.	Thermal data
Symbol	Parameter	SO-14	Unit
Rth(JA)	Thermal Resistance Junction to ambient	165	°C/W

1.3Recommended operating conditions

Table 3.	Recommended operating conditions
Symbol	Pin	Parameter	Test condition	Min	Typ	Max	Unit
Vout	12	Output voltage		(1)		580	V
(2)	14	Floating supply voltage		(1)		17	V
VBS
fsw		Switching frequency	HVG,LVG load CL = 1 nF			400	kHz
Vcc	4	Supply voltage				17	V
TJ		Junction temperature		-45		125	°C

1.If the condition Vboot - Vout < 18 V is guaranteed, Vout can range from -3 to 580 V

2.VBS = Vboot - Vout

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Pin connection	L6386AD

2 Pin connection

Figure 2. Pin connection (Top view)

LIN	1	14	Vboot
SD	2	13	HVG
HIN	3	12	OUT
VCC	4	11	N.C.
DIAG	5	10	N.C.
CIN	6	9	LVG
SGND	7	8	PGND
		D97IN521A

Table 4.	Pin description
N°	Pin	Type	Function
1	LIN	I	Low-side driver logic input
2	SD(1)	I	Shut down logic input
3	HIN	I	High-side driver logic input
4	VCC		Low voltage supply
5	DIAG	O	Open drain diagnostic output
6	CIN	I	Comparator input
7	SGND		Ground
8	PGND		Power ground
9	LVG (1)	O	Low-side driver output
10, 11	N.C.		Not connected
12	OUT	O	High-side driver floating driver
13	HVG (1)	O	High-side driver output
14	Vboot		Bootstrapped supply voltage

1.The circuit guarantees 0.3V maximum on the pin (@ Isink = 10 mA), with VCC >3V. This allows to omit the "bleeder" resistor connected between the gate and the source of the external MOSFET normally used to hold the pin low; the gate driver assures low impedance also in SD condition.

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L6386AD	Electrical characteristics

3 Electrical characteristics

3.1AC operation

Table 5.	AC operation electrical characteristcs (VCC = 15 V; TJ = 25 °C)
Symbol	Pin	Parameter	Test condition	Min	Typ		Max	Unit
ton		High/low-side driver turn-on			110		150	ns
	1,3 vs	propagation delay
toff	9,13	High/low-side driver turn-off	Vout = 0 V		110		150	ns
		propagation delay
tsd	2 vs	Shut down to high/low side			105		150
	9,13	propagation delay
tr	9, 13	Rise time	CL = 1000 pF		50			ns
tf		Fall time	CL = 1000 pF		30			ns

3.2DC operation

Table 6.	DC operation electrical characteristcs (VCC = 15 V; TJ = 25 °C)
Symbol	Pin	Parameter	Test condition	Min	Typ		Max	Unit
Low supply voltage section
Vccth1		Vcc UV turn on threshold		9.1	9.6		10.1	V
Vccth2		Vcc UV turn off threshold		7.9	8.3		8.8	V
Vcchys	4	Vcc UV hysteresis			1.3			V
Iqccu		Undervoltage quiescent	Vcc ≤9 V		200			µA
		supply current
Iqcc		Quiescent current	Vcc = 15 V		250		320	µA
Bootstrapped supply section
Vbth1		Vboot UV turn on threshold		8.5	9.5		10.5	V
Vbth2		Vboot UV turn off threshold		7.2	8.2		9.2	V
Vbhys	14	Vboot UV hysteresis			1.3			V
Iqboot		Vboot quiescent current	HVG ON				200	µA
Ilk		High voltage leakage current	Vhvg = Vout = Vboot				10	µA
			= 600 V
RDS(on)		Bootstrap driver on	Vcc ≥ 12.5 V;		125			Ω
		resistance (1)	Vin = 0 V

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Electrical characteristics							L6386AD
	Table 6.	DC operation electrical characteristcs (continued)(VCC = 15 V; TJ = 25 °C)
	Symbol	Pin	Parameter	Test condition	Min	Typ	Max	Unit
	Driving buffers section
	Iso	9,	High/low side source short	VIN = Vih (tp < 10 s)	300	400		mA
		13	circuit current
	Isi	9,	High/low side sink short	VIN = Vil (tp < 10 s)	500	650		mA
		13	circuit current
	Logic inputs
	Vil		Low level logic voltage				1.5	V
	Vih	1,2,	High level logic voltage		3.6			V
	Iih	3	High level logic input current	VIN = 15 V		50	70	A
	Iil		Low level logic input current	VIN = 0 V			1	A
	Sense comparator
	Vio		Input offset voltage		-10		10	mV
	Iio	6	Input bias current	Vcin ≥ 0.5		0.2		A
	Vol	2	Open drain low level output	Iod = -2.5 mA			0.8	V
			voltage
	Vref		Comparator reference		0.46	0.50	0.54	V
			voltage

1. RDS(on) is tested in the following way:

	RDSON	=	(VCC – VCBOOT1) – (VCC – VCBOOT2)
			I----------1	(V-----------------CC,VCBOOT1----------------------------------) – I2(-----------------VCC,V-----------------CBOOT2-------)

where I1 is pin 14 current when VCBOOT = VCBOOT1, I2 when VCBOOT = VCBOOT2

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