ST VIPER06 User Manual

VIPER06

Fixed-frequency VIPer™ plus family

Datasheet — production data

Features
■ 800 V avalanche rugged power section
■ PWM operation with frequency jittering for low
	EMI	SSO10	DIP-7
	Operating frequency:
■
	– 30 kHz for VIPER06Xx	Typical application
	Figure 1.
	– 60 kHz for VIPER06Lx
	– 115 kHz for VIPER06Hx	$# INPUT VOLTAGE	$# OUTPUTUVOLTAGE
■ No need for an auxiliary winding in low-power
	applications
■	Standby power < 30 mW at 265 VAC	$2!).	#/-0
■	Limiting current with adjustable set point	6)0%2
■ On-board soft-start		'.$ 6$$	,)- &"
■ Safe auto-restart after a fault condition
■	Hysteretic thermal shutdown
			!-V

Applications

■Replacement of capacitive power supplies

■Home appliances

■Power metering

■LED drivers

Description

The VIPER06 is an offline converter with an 800 V avalanche rugged power section, a PWM controller, a user-defined overcurrent limit, openloop failure protection, hysteretic thermal protection, soft startup and safe auto-restart after any fault condition. The device is able to power itself directly from the rectified mains, eliminating the need for an auxiliary bias winding. Advanced frequency jittering reduces EMI filter cost. Burst mode operation and the device’s very low power consumption both help to meet the standards set by energy-saving regulations.

March 2012

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This is information on a product in full production.

www.st.com

Contents	VIPER06

Contents

1	Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		. 4
2	Typical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		4
3	Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		5
4	Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		6
	4.1	Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
	4.2	Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
	4.3	Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7
5	Typical electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		10
6	Typical circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		13
7	Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		15
8	High voltage current generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		15
9	Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		16
10	Soft startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		16
11	Adjustable current limit set point . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		16
12	FB pin and COMP pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		17
13	Burst mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		18
14	Automatic auto-restart after overload or short-circuit . . . . . . . . . . . .		19
15	Open-loop failure protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		20
16	Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		22

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VIPER06		Contents
17	Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 26
18	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 27

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Block diagram	VIPER06

1 Block diagram

Figure 2. Block diagram

					VDD				DRAIN
					Internal Supply BUS &		SUPPLY	HV_ON	IDDch
							&
					REFERENCE VOLTAGES
							UVLO
LIM		IDLIM					UVLO	THERMAL
					Oscillator			SHUTDOWN
		set-up
			-					OTP
					TURN-ON
	VCOMPL		+				S
		BURST-MODE				LOGIC
				OCP	BURST		Q
		Logic
			Burst
						LEB	R
			-
			+
	-			PWM
FB
	E/A
							OTP
	+
	VREF_FB
									RSENSE
		COMP							GND

2	Typical power
	Table 1. Typical power
	Part number		230 VAC			85-265 VAC
		Adapter(1)		Open frame(2)	Adapter(1)		Open frame(2)
	VIPER06	6 W		8 W	4 W		5 W

1.Typical continuous power in non-ventilated enclosed adapter measured at 50 ° C ambient.

2.Maximum practical continuous power in an open-frame design at 50 ° C ambient, with adequate heat sinking.

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VIPER06	Pin settings

3 Pin settings

Figure 3. Connection diagram (top view)

DRAIN

GND

DRAIN

VDD

DRAIN

DRAIN

LIM

DRAIN

FB

DRAIN

COMP

DRAIN

AM11339v1

Note:

The copper area for heat dissipation has to be designed under the DRAIN pins.

Table 2.

Pin description

Pin

Name

Function

DIP-7

SSO10

1

1

GND

Connected to the source of the internal power MOSFET and controller

ground reference.

2

2

VDD

Supply voltage of the control section. This pin provides the charging

current of the external capacitor.

This pin allows setting the drain current limitation. The limit can be

3

3

LIM

reduced by connecting an external resistor between this pin and GND.

Pin left open if default drain current limitation is used.

Inverting input of the internal transconductance error amplifier.

Connecting the converter output to this pin through a single resistor

4

4

FB

results in an output voltage equal to the error amplifier reference

voltage (see VFB_REF in Table 6). An external resistor divider is

required for higher output voltages.

Output of the internal transconductance error amplifier. The

compensation network has to be placed between this pin and GND to

5

5

COMP

achieve stability and good dynamic performance of the voltage control

loop. The pin is used also to directly control the PWM with an

optocoupler. The linear voltage range extends from VCOMPL to

VCOMPH (Table 6).

High-voltage drain pins. The built-in high-voltage switched startup bias

7, 8

6-10

DRAIN

current is drawn from these pins too.

Pins connected to the metal frame to facilitate heat dissipation.

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Electrical data	VIPER06

4 Electrical data

4.1Maximum ratings

Table 3.	Absolute maximum ratings
Symbol	Pin	Parameter	Value		Unit
	(DIP-7)		Min	Max
VDRAIN	7, 8	Drain-to-source (ground) voltage		800	V
EAV	7, 8	Repetitive avalanche energy (limited by TJ = 150 °C)		2	mJ
IAR	7, 8	Repetitive avalanche current (limited by TJ = 150 °C)		1	A
IDRAIN	7, 8	Pulse drain current (limited by TJ = 150 °C)		2.5	A
VCOMP	5	Input pin voltage	-0.3	3.5	V
VFB	4	Input pin voltage	-0.3	4.8	V
VLIM	3	Input pin voltage	-0.3	2.4	V
VDD	2	Supply voltage	-0.3	Self-	V
				limited
IDD	2	Input current		20	mA
PTOT		Power dissipation at TA < 40 °C (DIP-7)		1	W
		Power dissipation at TA < 50 °C (SSO10)		1	W
TJ		Operating junction temperature range	-40	150	°C
TSTG		Storage temperature	-55	150	°C

4.2Thermal data

Table 4.	Thermal data
Symbol	Parameter		Max value	Max value	Unit
			SSO10	DIP-7
RthJP	Thermal resistance junction pin		35	40	° C/W
	(dissipated power = 1 W)
RthJA	Thermal resistance junction ambient		100	110	° C/W
	(dissipated power = 1 W)
RthJA	Thermal resistance junction ambient	(1)	80	90	° C/W
	(dissipated power = 1 W)

1. When mounted on a standard single side FR4 board with 100 mm2 (0.155 sq in) of Cu (35 μm thick).

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VIPER06	Electrical data

4.3Electrical characteristics

	(T	J	= -25 to 125 °C, V	= 14 V (a)	unless otherwise specified).
				DD
Table 5.	Power section
Symbol			Parameter			Test condition	Min	Typ	Max	Unit
VBVDSS	Breakdown voltage					IDRAIN = 1 mA,	800			V
						VCOMP = GND, TJ = 25 °C
IOFF	OFF state drain current					VDRAIN = max rating,			60	μA
						VCOMP = GND
RDS(on)	Drain-source on-state resistance					IDRAIN = 0.2 A, TJ = 25 °C			32	Ω
						IDRAIN = 0.2 A, TJ = 125 °C			67	Ω
COSS	Effective (energy related) output capacitance					VDRAIN = 0 to 640 V		10		pF
Table 6.	Supply section
Symbol			Parameter			Test condition	Min	Typ	Max	Unit
Voltage
VDRAIN_START	Drain-source startup voltage						25		45	V
IDDch1	Startup charging current					VDRAIN = 100 V to 640 V,	-0.6		-1.8	mA
						VDD = 4 V
IDDch2	Charging current during operation					VDRAIN = 100 V to 640 V,	-7		-14	mA
						VDD = 9 V falling edge
VDD	Operating voltage range						11.5		23.5	V
VDDclamp	VDD clamp voltage					IDD = 15 mA	23.5			V
VDDon	VDD startup threshold						12	13	14	V
VDDCSon	VDD on internal high-voltage current						9.5	10.5	11.5	V
	generator threshold
VDDoff	VDD undervoltage shutdown threshold						7	8	9	V
Current
IDD0	Operating supply current, not switching					FOSC = 0 kHz, VCOMP = GND			0.6	mA
						VDRAIN = 120 V,			1.3	mA
						FOSC = 30 kHz
IDD1	Operating supply current, switching					VDRAIN = 120 V,			1.45	mA
						FOSC = 60 kHz
						VDRAIN = 120 V,			1.6	mA
						FOSC = 115 kHz
IDDoff	Operating supply current with VDD < VDDoff					VDD < VDDoff			0.35	mA
IDDol	Open-loop failure current threshold					VDD = VDDclamp	4			mA
						VCOMP = 3.3 V,

a. Adjust VDD above VDDon startup threshold before setting to 14 V.

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	Electrical data					VIPER06
	Table 7.	Controller section
	Symbol	Parameter	Test condition	Min	Typ	Max	Unit
	Error amplifier
	VREF_FB	FB reference voltage		3.2	3.3	3.4	V
	IFB_PULL UP	Current pull-up			-1		μA
	GM	Transconductance			2		mA/V
	Current setting (LIM) pin
	VLIM_LOW	Low-level clamp voltage	ILIM = -100 μA		0.5		V
	Compensation (COMP) pin
	VCOMPH	Upper saturation limit	TJ = 25 °C		3		V
	VCOMPL	Burst mode threshold	TJ = 25 °C	1	1.1	1.2	V
	VCOMPL_HYS	Burst mode hysteresis	TJ = 25 °C		40		mV
	HCOMP	VCOMP / IDRAIN		4		9	V/A
	RCOMP(DYN)	Dynamic resistance	VFB = GND		15		kΩ
	ICOMP	Source / sink current	VFB > 100 mV		150		μA
		Max source current	VCOMP = GND, VFB = GND		220		μA
	Current limitation
	IDlim	Drain current limitation	ILIM = -10 μA, VCOMP = 3.3 V,	0.32	0.35	0.38	A
			TJ = 25 °C
	tSS	Soft-start time			8.5		ms
	TON_MIN	Minimum turn-on time				450	ns
	IDlim_bm	Burst mode current limitation	VCOMP = VCOMPL		85		mA
	Overload
	tOVL	Overload time			50		ms
	tRESTART	Restart time after fault			1		s
	Oscillator section
			VIPER06Xx	27	30	33	kHz
	FOSC	Switching frequency	VIPER06Lx	54	60	66	kHz
			VIPER06Hx	103	115	127	kHz
			FOSC = 30 kHz		±3		kHz
	FD	Modulation depth	FOSC = 60 kHz		±4		kHz
			FOSC = 115 kHz		±8		kHz
	FM	Modulation frequency			230		Hz
	DMAX	Maximum duty cycle		70		80	%

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VIPER06				Electrical data
Table 7.	Controller section (continued)
Symbol	Parameter	Test condition	Min	Typ	Max	Unit
Thermal shutdown
TSD	Thermal shutdown temperature		150	160		°C
THYST	Thermal shutdown hysteresis			30		°C

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