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ZHCSIM4H April 2009 – November 2014 LM25011 , LM25011-Q1

PRODUCTION DATA.

封裝選項(xiàng)

機(jī)械數(shù)據(jù) (封裝 | 引腳)

DGQ|10
- MPDS043F

散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)

DGQ|10
- PPTD275A

訂購(gòu)信息

6.6 Electrical Characteristics

Typical values correspond to T_J = 25°C. Minimum and maximum limits apply over –40°C to 125°C junction temperature range unless otherwise stated. Unless otherwise stated, the following conditions apply: V_IN = 12 V, R_T = 50 kΩ.⁽¹⁾⁽²⁾⁽³⁾

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
INPUT (VIN PIN)
I_IN	Input operating current	Non-switching, FB = 3 V		1200	1600	µA
UVLO_VIN	V_IN undervoltage lock-out threshold	V_IN increasing	4.6	5.3	5.9	V
	V_IN undervoltage lock-out threshold hysteresis			200		mV
SWITCH CHARACTERISTICS
R_DS(ON)	Buck Switch R_DS(ON)	I_TEST = 200 mA		0.3	0.6	Ω
UVLO_GD	Gate Drive UVLO	BST-SW	2.4	3.4	4.4	V
	UVLO_GD Hysteresis			350		mV
	Pre-charge switch voltage	I_TEST = 10 mA into SW pin		1.4		V
	Pre-charge switch on-time			120		ns
SOFT-START PIN
V_SS	Pullup voltage			2.51		V
I_SS	Internal current source			10		µA
V_SS-SH	Shutdown threshold		70	140		mV
CURRENT LIMIT
V_ILIM	Threshold voltage at CS		–146	–130	–115	mV
	CS bias current	FB = 3 V		–120		µA
	CSG bias current	FB = 3 V		–35		µA
ON TIMER, RT PIN
t_ON - 1	On-time	V_IN = 12 V, R_T = 50 kΩ	150	200	250	ns
t_ON - 2	On-time	V_IN = 32 V, R_T = 50 kΩ		75		ns
t_ON - 3	On-time (current limit) LM25011	V_IN = 12 V, R_T = 50 kΩ		100		ns
t_ON - 3	On-time (current limit) LM25011A	V_IN = 12 V, R_T = 50 kΩ		200		ns
t_ON - 4	On-time	V_IN = 12 V, R_T = 301 kΩ		1020		ns
t_ON - 5	On-time	V_IN = 9 V, R_T = 30.9 kΩ	130	171	215	ns
t_ON - 6	On-time	V_IN = 12 V, R_T = 30.9 kΩ	105	137	170	ns
t_ON - 7	On-time	V_IN = 16 V, R_T = 30.9 kΩ	79	109	142	ns
OFF TIMER
t_OFF	Minimum off-time (LM25011)		90	150	208	ns
t_OFF	Minimum off-time (LM25011A)		52	75	93	ns
REGULATION COMPARATOR (FB PIN)
V_REF	FB regulation threshold	SS pin = steady state	2.46	2.51	2.56	V
	FB bias current	FB = 3 V		100		nA
POWER GOOD (PGD PIN)
	Threshold at FB, with respect to V_REF	FB increasing	91%	95%
	Threshold hysteresis			3.3%
PGD_VOL	Low state voltage	I_PGD = 1 mA, FB = 0 V		125	180	mV
PGD_LKG	Off state leakage	V_PGD = 7 V, FB = 3 V		0.1		µA
THERMAL SHUTDOWN
T_SD	Thermal shutdown	Junction temperature increasing		155		°C
T_SD	Thermal shutdown hysteresis			20		°C

(1) Current flow out of a pin is indicated as a negative number.

(2) All hot and cold limits are specified by correlating the electrical characteristics to process and temperature variations and applying statistical process control.

(3) The junction temperature (T_J in °C) is calculated from the ambient temperature (T_A in °C) and power dissipation (P_D in watts) as follows: T_J = T_A + (P_D × R_θJA ) where R_θJA (in °C/W) is the package thermal impedance provided in the Thermal Information section.