米6体育平台手机版

ZHCS519G April 2000 – May 2019 LM2585

PRODUCTION DATA.

封装选项

机械数据 (封装 | 引脚)

NDH|5
- MMSF011
KTT|5
- MPSF007E

散热焊盘机械数据 (封装 | 引脚)

KTT|5
- PPTD277

订购信息

6.9 Electrical Characteristics: All Versions

PARAMETER		TEST CONDITIONS	TYP	MIN	MAX	UNIT
COMMON DEVICE PARAMETERS for all versions ⁽²⁾
I_S	Input Supply Current	(Switch Off)⁽⁵⁾	11		15.5/16.5	mA
I_S	Input Supply Current	I_SWITCH = 1.8A	50		100/115	mA
V_UV	Input Supply Undervoltage Lockout	R_LOAD = 100Ω	3.30	3.05	3.75	V
f_O	Oscillator Frequency	Measured at Switch Pin
		R_LOAD = 100Ω	100	85/75	115/125	kHz
		V_COMP = 1.0V
f_SC	Short-Circuit Frequency	Measured at Switch Pin
		R_LOAD = 100Ω	25			kHz
		V_FEEDBACK = 1.15V
V_EAO	Error Amplifier Output Swing	Upper Limit⁽⁴⁾	2.8	2.6/2.4		V
V_EAO	Error Amplifier Output Swing	Lower Limit⁽⁵⁾	0.25		0.40/0.55	V
I_EAO	Error Amp Output Current (Source or Sink)	See ⁽⁶⁾	165	110/70	260/320	μA
I_SS	Soft Start Current	V_FEEDBACK = 0.92V	11.0	8.0/7.0	17.0/19.0	μA
I_SS	Soft Start Current	V_COMP = 1.0V
D	Maximum Duty Cycle	R_LOAD = 100Ω⁽⁴⁾	98	93/90		%
I_L	Switch Leakage Current	Switch Off	15		300/600	μA
I_L	Switch Leakage Current	V_SWITCH = 60V
V_SUS	Switch Sustaining Voltage	dV/dT = 1.5V/ns		65		V
V_SAT	Switch Saturation Voltage	I_SWITCH = 3.0A	0.45		0.65/0.9	V
I_CL	NPN Switch Current Limit		4	3	7.0	A

(1) External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the LM2585 is used as shown in Figure 47 and Figure 48, system performance will be as specified by the system parameters.

(2) All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods.

(3) A 1-MΩ resistor is connected to the compensation pin (which is the error amplifier output) to ensure accuracy in measuring A_VOL.

(4) To measure this parameter, the feedback voltage is set to a low value, depending on the output version of the device, to force the error amplifier output high. Adj: V_FB = 1.05 V; 3.3 V: V_FB = 2.81 V; 5 V: V_FB = 4.25 V; 12 V: V_FB = 10.2 V.

(5) To measure this parameter, the feedback voltage is set to a high value, depending on the output version of the device, to force the error amplifier output low. Adj: V_FB = 1.41 V; 3.3 V: V_FB = 3.8 V; 5 V: V_FB = 5.75 V; 12 V: V_FB = 13.8 V.

(6) To measure the worst-case error amplifier output current, the LM2585 is tested with the feedback voltage set to its low value (specified in ^{Tablenote 3}) and at its high value (specified in ^{Tablenote 2}).