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SNVS465G October 2006 – September 2015 LM3404 , LM3404HV

PRODUCTION DATA.

封裝選項(xiàng)

機(jī)械數(shù)據(jù) (封裝 | 引腳)

D|8
- MSOI002K
DDA|8
- MPDS092F

散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)

DDA|8
- PPTD058J

訂購信息

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)⁽¹⁾⁽²⁾

		MIN	MAX	UNIT
VIN to GND	LM3404	–0.3	45	V
VIN to GND	LM3404HV	–0.3	76	V
BOOT to GND	LM3404	–0.3	59	V
BOOT to GND	LM3404HV	–0.3	90	V
SW to GND	LM3404	–1.5	45	V
SW to GND	LM3404HV	–1.5	76	V
BOOT to VCC	LM3404	–0.3	45	V
BOOT to VCC	LM3404HV	–0.3	76	V
BOOT to SW		–0.3	14	V
VCC to GND		–0.3	14	V
DIM to GND		–0.3	7	V
CS to GND		–0.3	7	V
RON to GND		–0.3	7	V
Soldering information	Lead temperature (soldering, 10 s)		260	°C
Soldering information	Infrared or convection reflow (15 s)		235	°C
Junction temperature			150	°C
Storage temperature		–65	125	°C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) If Military or Aerospace specified devices are required, contact the Texas Instruments Semiconductor Sales Office or Distributors for availability and specifications.

6.2 ESD Ratings

			VALUE	UNIT
V_(ESD)	Electrostatic discharge	Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001⁽¹⁾⁽³⁾	±2000	V
V_(ESD)	Electrostatic discharge	Charged-device model (CDM), per JEDEC specification JESD22-C101⁽²⁾	±1000	V

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

(3) The human body model is a 100-pF capacitor discharged through a 1.5-kΩ resistor into each pin.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)⁽¹⁾

		MIN	MAX	UNIT
V_IN	LM3404	6	42	V
V_IN	LM3404HV	6	75	V
Junction Temperature Range	LM3404	–40	125	°C
Junction Temperature Range	LM34040HV	–40	125	°C

(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Recommended Operating Conditions indicate conditions for which the device is intended to be functional, but specific performance is not ensured. For specifications and the test conditions, see Electrical Characteristics.

6.4 Thermal Information

THERMAL METRIC⁽¹⁾		LM3404, LM3404HV		UNIT
		SOIC	SO PowerPAD
		8 PINS	8 PINS
R_θJA	Junction-to-ambient thermal resistance	106.8	44.7	°C/W
R_θJC(top)	Junction-to-case (top) thermal resistance	46.2	51.2	°C/W
R_θJB	Junction-to-board thermal resistance	48.7	24.5	°C/W
ψ_JT	Junction-to-top characterization parameter	6.7	6.8	°C/W
ψ_JB	Junction-to-board characterization parameter	48	24.4	°C/W
R_θJC(bot)	Junction-to-case (bottom) thermal resistance	N/A	2.6	°C/W

(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics

V_IN = 24 V (unless otherwise noted).
–40°C ≤ T_J ≤ 125°C. ⁽²⁾

PARAMETER		CONDITIONS	MIN	TYP	MAX	UNIT
REGULATION AND OVERVOLTAGE COMPARATORS
V_REF-REG	CS Regulation Threshold	CS Decreasing, SW turns on	194	200	206	mV
V_REF-0V	CS Overvoltage Threshold	CS Increasing, SW turns off		300		mV
I_CS	CS Bias Current	CS = 0 V		0.1		µA
SHUTDOWN
V_SD-TH	Shutdown Threshold	R_ON / SD Increasing	0.3	0.7	1.05	V
V_SD-HYS	Shutdown Hysteresis	R_ON / SD Decreasing		40		mV
INTERNAL REGULATOR
V_CC-REG	V_CC Regulated Output		6.4	7	7.4	V
V_IN-DO	V_IN – V_CC	I_CC = 5 mA, 6 V < V_IN < 8 V		300		mV
V_CC-BP-TH	V_CC Bypass Threshold	V_IN Increasing		8.8		V
V_CC-BP-HYS	V_CC Bypass Hysteresis	V_IN Decreasing		230		mV
V_CC-Z-6	V_CC Output Impedance (0 mA < I_CC < 5 mA)	V_IN = 6 V		55		Ω
V_CC-Z-8		V_IN = 8 V		50		Ω
V_CC-Z-24		V_IN = 24 V		0.4		Ω
V_CC-LIM	V_CC Current Limit ⁽¹⁾	V_IN = 24 V, V_CC = 0 V		16		mA
V_CC-UV-TH	V_CC Undervoltage Lock-out Threshold	V_CC Increasing		5.3		V
V_CC-UV-HYS	V_CC Undervoltage Lock-out Hysteresis	V_CC Decreasing		150		mV
V_CC-UV-DLY	V_CC Undervoltage Lock-out Filter Delay	100-mV Overdrive		3		µs
I_IN-OP	I_INOperating Current	Non-switching, CS = 0.5 V		625	900	µA
I_IN-SD	I_IN Shutdown Current	R_ON / SD = 0 V		95	180	µA
CURRENT LIMIT
I_LIM	Current Limit Threshold		1.2	1.5	1.8	A
DIM COMPARATOR
V_IH	Logic High	DIM Increasing	2.2			V
V_IL	Logic Low	DIM Decreasing			0.8	V
I_DIM-PU	DIM Pullup Current	DIM = 1.5 V		80		µA
MOSFET AND DRIVER
R_DS-ON	Buck Switch On Resistance	I_SW = 200 mA, BST-SW = 6.3 V		0.37	0.75	Ω
V_DR-UVLO	BST Undervoltage Lock-out Threshold	BST–SW Increasing	1.7	3	4	V
V_DR-HYS	BST Undervoltage Lock-out Hysteresis	BST–SW Decreasing		400		mV
THERMAL SHUTDOWN
T_SD	Thermal Shutdown Threshold			165		°C
T_SD-HYS	Thermal Shutdown Hysteresis			25		°C

(1) VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading.

(2) Typical specifications represent the most likely parametric norm at 25°C operation.

6.6 Switching Characteristics

over operating free-air temperature range (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
SYSTEM PARAMETERS - LM3404
t_ON-1	On-time 1	V_IN = 10 V, R_ON = 200 kΩ	2.1	2.75	3.4	µs
t_ON-2	On-time 2	V_IN = 40 V, R_ON = 200 kΩ	515	675	835	ns
SYSTEM PARAMETERS - LM3404HV
t_ON-1	On-time 1	V_IN = 10 V, R_ON = 200 kΩ	2.1	2.75	3.4	µs
t_ON-2	On-time 2	V_IN = 70 V, R_ON = 200 kΩ	325	415	505	ns
OFF TIMER
t_OFF-MIN	Minimum Off-time	CS = 0 V		270		ns