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SNVS118F december 1999 – may 2023 LM2594 , LM2594HV

PRODUCTION DATA

封裝選項

機械數據 (封裝 | 引腳)

D|8
- MSOI002K
P|8
- MPDI001B

散熱焊盤機械數據 (封裝 | 引腳)

訂購信息

7.9 Electrical Characteristics – All Output Voltage Versions

Specifications are for T_J = 25°C, V_IN = 12 V for the 3.3-V, 5-V, and adjustable version, and V_IN = 24 V for the 12-V version, I_LOAD = 100 mA (unless otherwise noted).

PARAMETER		TEST CONDITIONS		MIN	TYP⁽¹⁾	MAX⁽²⁾	UNIT
DEVICE PARAMETERS
I_b	Feedback bias current	Adjustable version only, VFB = 1.3 V	T_J = 25°C		10	50	nA
I_b	Feedback bias current	Adjustable version only, VFB = 1.3 V	Over full operating temperature range			100	nA
f_O	Oscillator frequency	See⁽³⁾	T_J = 25°C	127	150	173	kHz
f_O	Oscillator frequency	See⁽³⁾	Over full operating temperature range	110		173	kHz
V_SAT	Saturation voltage	I_OUT = 0.5 A⁽⁴⁾⁽⁵⁾	T_J = 25°C		0.9	1.1	V
V_SAT	Saturation voltage	I_OUT = 0.5 A⁽⁴⁾⁽⁵⁾	Over full operating temperature range			1.2	V
DC	Max duty cycle (ON)	See⁽⁵⁾			100%
DC	Min duty cycle (OFF)	See⁽⁶⁾			0%
I_CL	Current limit	Peak current⁽⁴⁾⁽⁵⁾	T_J = 25°C	0.65	0.8	1.3	A
I_CL	Current limit	Peak current⁽⁴⁾⁽⁵⁾	over full operating temperature range	0.58		1.4	A
I_L	Output leakage current	Output = 0 V⁽⁴⁾⁽⁶⁾⁽⁷⁾ ?? Output = ?1 V				50	μA
I_L	Output leakage current	Output = 0 V⁽⁴⁾⁽⁶⁾⁽⁷⁾ ?? Output = ?1 V			2	15	mA
I_Q	Quiescent current	See⁽⁶⁾			5	10	mA
I_STBY	Standby quiescent current	ON/OFF pin = 5 V (OFF)⁽⁷⁾			85		μA
		LM2594	T_J = 25°C			200	μA
		LM2594	Over full operating temperature range			250	μA
		LM2594HV	T_J = 25°C		140	250	μA
		LM2594HV	Over full operating temperature range			300	μA
ON/OFF CONTROL (see Figure 9-13 for test circuit)
	ON/OFF pin logic input				1.3		V
V_IH	Threshold voltage	Low (regulator ON), over full operating temperature range				0.6	V
V_IL	Threshold voltage	High (regulator OFF), over full operating temperature range		2			V
I_H	ON/OFF pin input current	V_LOGIC = 2.5 V (regulator OFF)			5	15	μA
I_L	ON/OFF pin input current	V_LOGIC = 0.5 V (regulator ON)			0.02	5	μA

(1) Typical numbers are at 25°C and represent the most likely norm.

(2) All limits ensured at room temperature and at temperature extremes. All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

(3) The switching frequency is reduced when the second stage current limit is activated. The amount of reduction is determined by the severity of current overload.

(4) No diode, inductor or capacitor connected to output pin.

(5) Feedback pin removed from output and connected to 0 V to force the output transistor switch ON.

(6) Feedback pin removed from output and connected to 12 V for the 3.3-V, 5-V, and the adjustable version, and 15 V for the 12-V version, to force the output transistor switch OFF.

(7) V_IN = 40 V for the LM2594 and 60 V for the LM2594HV.