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ZHCS573I August 2010 – April 2018 LM25119

PRODUCTION DATA.

封裝選項

機械數據 (封裝 | 引腳)

RTV|32
- MPQF166B

散熱焊盤機械數據 (封裝 | 引腳)

RTV|32
- QFND448B

訂購信息

6.5 Electrical Characteristics

Typical values correspond to T_J = 25°C. Minimum and maximum limits apply over –40°C to 125°C junction temperature range. VIN = 36 V, VCC = 8 V, VCCDIS = 0 V, EN2 = 5 V, R_T = 25 kΩ, and no load on LO or HO (unless otherwise noted).

PARAMETER		TEST CONDITIONS	MIN⁽¹⁾	TYP	MAX⁽¹⁾	UNIT
VIN SUPPLY
I_BIAS	VIN operating current	V_SS1 = V_SS2 = 0 V		6	7.3	mA
I_BIAS	VIN operating current	V_VCCDIS = 2 V, V_SS1 = V_SS2 = 0 V		340	500	µA
I_VCC	VCC1 operating current	V_VCCDIS = 2 V, V_SS1 = V_SS2 = 0 V		3.9	4.5	mA
I_VCC	VCC2 operating current	V_VCCDIS = 2 V, V_SS1 = V_SS2 = 0 V		1.4	2	mA
I_SHUTDOWN	VIN shutdown current	V_UVLO = 0 V, V_SS1 = V_SS2 = 0 V		15	33	µA
VCC REGULATOR⁽²⁾
V_CC(REG)	VCC regulation		6.77	7.6	8.34	V
V_CC(REG)	VCC regulation	V_IN = 4.5 V, No external load	4.4	4.46		V
	Sourcing current limit	V_CC = 0 V	25	40		mA
	VCCDIS switch threshold	V_VCCDIS rising	1.19	1.25	1.29	V
	VCCDIS switch hysteresis			0.07		V
	VCCDIS input current	V_VCCDIS = 0 V		–20		nA
	Undervoltage threshold	Positive going VCC	3.8	4	4.2	V
	Undervoltage hysteresis			0.2		V
EN2 INPUT
V_IL	EN2 input low threshold			2	1.5	V
V_IH	EN2 input high threshold		2.9	2.5		V
	EN2 input pullup resistor			50		kΩ
UVLO
	Threshold	UVLO rising	1.2	1.25	1.29	V
	Hysterisis current	V_UVLO= 1.4 V	15	20	25	µA
	Shutdown threshold			0.4		V
	Shutdown hysteresis voltage			0.1		V
SOFT START
	Current source	V_SS = 0 V	7	10	13	µA
	Pulldown R_DSON			10		Ω
ERROR AMPLIFIER
V_REF	FB reference voltage	Measured at FB pin, FB = COMP	0.788	0.8	0.812	V
	FB input bias current	V_FB = 0.8 V		1		nA
	FB disable threshold	Interleaved threshold		2.5		V
	COMP VOH	I_SOURCE = 3 mA	2.8			V
	COMP VOL	I_SINK = 3 mA			0.31	V
A_OL	DC gain			80		dB
f_BW	Unity gain bandwidth			3		MHz
PWM COMPARATORS
t_HO(OFF)	Forced HO OFF-time		220	320	430	ns
t_ON(min)	Minimum HO ON-time	C_RAMP = 50 pF		100		ns
OSCILLATOR
f_SW1	Frequency 1	R_T = 25 kΩ	180	200	220	kHz
f_SW2	Frequency 2	R_T = 10 kΩ	430	480	530	kHz
	RT output voltage			1.25		V
	RT sync positive threshold	T_J = 25°C	2.5	3.2	4	V
	Sync pulse minimum width		100			ns
CURRENT LIMIT
V_CS(TH)	Cycle-by-cycle sense voltage threshold (CS – CSG)	RAMP = 0	106	120	134	mV
	CS bias current	V_CS = 0 V		–70	–95	µA
	Hiccup mode fault timer			256		Cycles
RES
I_RES	Current source			9.7		µA
V_RES	Threshold	C_RES charging	1.2	1.25	1.3	V
DIODE EMULATION
V_IL	DEMB input low threshold			2	1.65	V
V_IH	DEMB input high threshold		2.9	2.6		V
	DEMB input pulldown resistance			50		kΩ
	SW zero cross threshold			–5		mV
LO GATE DRIVER
V_OLL	LO low-state output voltage	I_LO = 100 mA		0.1	0.18	V
V_OHL	LO high-state output voltage	I_LO = –100 mA, V_OHL = VCC – V_LO		0.17	0.26	V
	LO rise time	C_LOAD = 1000 pF		6		ns
	LO fall time	C_LOAD = 1000 pF		5		ns
I_OHL	Peak LO source current	V_LO = 0 V		2.5		A
I_OLL	Peak LO sink current	V_LO = VCC		3.3		A
HO GATE DRIVER
V_OLH	HO low-state output voltage	I_HO = 100 mA		0.11	0.19	V
V_OHH	HO high-state output voltage	I_HO = –100 mA, V_OHH = V_HB – V_HO		0.18	0.27	V
	HO rise time	C_LOAD = 1000 pF		6		ns
	HO fall time	C_LOAD = 1000 pF		5		ns
I_OHH	Peak HO Source current	V_HO = 0 V, V_SW = 0, V_HB = 8 V		2.2		A
I_OLH	Peak HO sink current	V_HO = V_HB = 8 V		3.3		A
	HB to SW undervoltage			3		V
	HB DC bias current	V_HB – V_SW = 8 V		70	100	µA
THERMAL
T_SD	Thermal shutdown	Rising		165		°C
	Thermal shutdown hysteresis			25		°C

(1) Minimum and maximum limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Texas Instrument's Average Outgoing Quality Level (AOQL).

(2) Per VCC Regulator.