米6体育平台手机版

ZHCS538M September 2008 – October 2020 LM22678 , LM22678-Q1

PRODUCTION DATA

封装选项

机械数据 (封装 | 引脚)

NDR|7
- MMSF023A

散热焊盘机械数据 (封装 | 引脚)

订购信息

6.6 Electrical Characteristics

Typical values represent the most likely parametric norm at T_A = T_J = 25°C, and are provided for reference purposes only. Unless otherwise specified: V_IN = 12 V.

PARAMETER		TEST CONDITIONS	MIN⁽¹⁾	TYP⁽²⁾	MAX⁽¹⁾	UNIT
LM22678-5.0
V_FB	Feedback Voltage	V_IN = 8 V to 42 V	4.925	5.0	5.075	V
V_FB	Feedback Voltage	V_IN = 8 V to 42 V, –40°C ≤ T_J ≤ 125°C	4.9		5.1	V
LM22678-ADJ
V_FB	Feedback Voltage	V_IN = 4.7 V to 42 V	1.266	1.285	1.304	V
V_FB	Feedback Voltage	V_IN = 4.7 V to 42 V, –40°C ≤ T_J ≤ 125°C	1.259		1.311	V
ALL OUTPUT VOLTAGE VERSIONS
I_Q	Quiescent Current	V_FB = 5 V		3.4		mA
I_Q	Quiescent Current	V_FB = 5 V, –40°C ≤ T_J ≤ 125°C			6	mA
I_STDBY	Standby Quiescent Current	EN Pin = 0 V		25	40	µA
I_CL	Current Limit		6.0	7.1	8.4	A
I_CL	Current Limit	–40°C ≤ T_J ≤ 125°C	5.75		8.75	A
I_L	Output Leakage Current	V_IN = 42 V, EN Pin = 0 V, V_SW = 0 V		0.2	2	µA
I_L	Output Leakage Current	V_SW = –1 V		0.1	3	µA
R_DS(ON)	Switch On-Resistance			0.1	0.14	Ω
R_DS(ON)	Switch On-Resistance	–40°C ≤ T_J ≤ 125°C			0.2	Ω
f_O	Oscillator Frequency			500		kHz
f_O	Oscillator Frequency	–40°C ≤ T_J ≤ 125°C	400		600	kHz
T_OFFMIN	Minimum Off-time			200		ns
T_OFFMIN	Minimum Off-time	–40°C ≤ T_J ≤ 125°C	100		300	ns
T_ONMIN	Minimum On-time			100		ns
I_BIAS	Feedback Bias Current	V_FB = 1.3 V (ADJ Version Only)		230		nA
V_EN	Enable Threshold Voltage	Falling		1.6		V
V_EN	Enable Threshold Voltage	Falling, –40°C ≤ T_J ≤ 125°C	1.3		1.9	V
V_ENHYST	Enable Threshold Hysteresis			0.6		V
I_EN	Enable Input Current	EN Input = 0 V		6		µA
T_SD	Thermal Shutdown Threshold			150		°C

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

(2) Typical values represent most likely parametric norms at the conditions specified and are not ensured.