在线精品亚洲观看不卡欧,国精品午夜福利视频不卡,亚洲国产美女精品久久久久∴

ZHCSA29F October 2011 – June 2019 LMR24220

PRODUCTION DATA.

封裝選項

機械數據 (封裝 | 引腳)

YPA|28
- MXBG222

散熱焊盤機械數據 (封裝 | 引腳)

訂購信息

6.3 Electrical Characteristics

Specifications with standard type are for T_J = 25°C only; limits in boldface type apply over the full Operating Junction Temperature (T_J) range. Minimum and maximum limits are ensured through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T_J = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: V_IN = 18 V, V_OUT = 3.3 V.⁽³⁾

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
START-UP REGULATOR, V_CC
V_CC	V_CC output voltage	C_CC = 680nF, no load	5.0	6.0	7.2	V
V_IN - V_CC	V_IN- V_CC dropout voltage	I_CC = 20mA		350		mV
I_VCCL	V_CC current limit⁽⁴⁾	V_CC = 0V	40	65		mA
V_CC-UVLO	V_CC under-voltage lockout threshold (UVLO)	V_IN increasing	3.55	3.75	3.95	V
V_CC-UVLO-HYS	V_CC UVLO hysteresis	V_IN decreasing – DSBGA package		150		mV
t_VCC-UVLO-D	V_CC UVLO filter delay			3		µs
I_IN	I_IN operating current	No switching, V_FB = 1V		0.7	1	mA
I_IN-SD	I_IN operating current, Device shutdown	V_EN = 0V		25	40	µA
SWITCHING CHARACTERISTICS
R_DS-UP-ON	Main MOSFET R_DS(on)			0.18	0.375	Ω
R_{DS- DN-ON}	Syn. MOSFET R_DS(on)			0.11	0.225	Ω
V_G-UVLO	Gate drive voltage UVLO	V_BST - V_SW increasing		3.3	4.2	V
SOFT START
I_SS	SS pin source current	V_SS = 0.5V		11		µA
CURRENT LIMIT
I_CL	Syn. MOSFET current limit threshold	LMR24220	2.156	2.8	3.4	A
ON/OFF TIMER
t_on	ON timer pulse width	V_IN = 10V, R_ON = 100 kΩ		1.38		µs
t_on	ON timer pulse width	V_IN = 30V, R_ON = 100 kΩ		0.47		µs
t_on-MIN	ON timer minimum pulse width			150		ns
t_off	OFF timer pulse width			260		ns
ENABLE INPUT
V_EN	EN Pin input threshold	V_EN rising	1.13	1.18	1.23	V
V_EN-HYS	Enable threshold hysteresis	V_EN falling		90		mV
REGULATION AND OVERVOLTAGE COMPARATOR
V_FB	In-regulation feedback voltage	V_SS ≥ 0.8V T_J = −40°C to +125°C	0.784	0.8	0.816	V
V_FB-OV	Feedback overvoltage threshold		0.888	0.920	0.945	V
I_FB	FB pin current			5		nA
THERMAL SHUTDOWN
T_SD	Thermal shutdown temperature	T_J rising		165		°C
T_SD-HYS	Thermal shutdown temperature hysteresis	T_J falling		20		°C

(1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics.

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

(3) Min and Max 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 Average Outgoing Quality Level (AOQL).

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

(5) θ_JA calculations were performed in general accordance with JEDEC standards JESD51–1 to JESD51–11.

(6) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications.