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ZHCS520E May 1996 – May 2019 LM2586

PRODUCTION DATA.

封裝選項

機械數據 (封裝 | 引腳)

KTW|7
- MPSF015
NDZ|7
- MMSF005

散熱焊盤機械數據 (封裝 | 引腳)

KTW|7
- PPTD278

訂購信息

6.8 Electrical Characteristics: Adjustable

PARAMETER		TEST CONDITIONS	TYP	MIN	MAX	UNIT
SYSTEM PARAMETERS Test Circuit of Figure 55⁽¹⁾
V_OUT	Output Voltage	V_IN = 4V to 10V I_LOAD = 0.2A to 0.8A	12.0	11.52/11.40	12.48/12.60	V
ΔV_OUT/ ΔV_IN	Line Regulation	V_IN = 4V to 10V I_LOAD = 0.2A	20		100/200	mV
ΔV_OUT/ ΔI_LOAD	Load Regulation	V_IN = 10V I_LOAD = 0.2A to 0.8A	20		100/200	mV
η	Efficiency	V_IN = 10V, I_LOAD = 0.6A	93			%
UNIQUE DEVICE PARAMETERS ⁽²⁾
V_REF	Output Reference Voltage	Measured at Feedback Pin V_COMP = 1.0V	1.230	1.208/1.205	1.252/1.255	V
ΔV_REF	Reference Voltage Line Regulation	V_IN = 4V to 40V	1.5			mV
G_M	Error Amp Transconductance	I_COMP = −30 μA to +30 μA V_COMP = 1.0V	3.200	1.800	6.000	mmho
A_VOL	Error Amp Voltage Gain	V_COMP = 0.5V to 1.6V, R_COMP = 1.0 MΩ ⁽³⁾	670	400/200		V/V
I_B	Error Amp Input Bias Current	V_COMP = 1.0V	125		425/600	nA
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
I_S/D	Shutdown Input Supply Current	V_SH = 3V	16		100/300	μA
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, V_COMP = 1.0V Freq. Adj. Pin Open (Pin 1)	100	85/75	115/125	kHz
f_O	Oscillator Frequency	R_SET = 22 kΩ	200			kHz
f_SC	Short-Circuit Frequency	Measured at Switch Pin R_LOAD = 100Ω V_FEEDBACK = 1.15V	25			kHz
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 V_COMP = 1.0V	11.0	8.0/7.0	17.0/19.0	μA
D_MAX	Maximum Duty Cycle	R_LOAD = 100Ω ⁽⁴⁾	98%	93%/90%
I_L	Switch Leakage Current	Switch Off V_SWITCH = 60V	15		300/600	μA
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		4.0	3.0	7.0	A
V_STH	Synchronization Threshold Voltage	F_SYNC = 200 kHz V_COMP = 1V, V_IN = 5V	0.75	0.625/0.40	0.875/1.00	V
I_SYNC	Synchronization Pin Current	V_IN = 5V V_COMP = 1V, V_SYNC = V_STH	100		200	μA
V_SHTH	ON/OFF Pin (Pin 1) Threshold Voltage	V_COMP = 1V ⁽⁷⁾	1.6	1.0/0.8	2.2/2.4	V
I_SH	ON/OFF Pin (Pin 1) Current	V_COMP = 1V V_SH = V_SHTH	40	15/10	65/75	μA

(1) External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the LM2586 is used as shown in Figure 54 and Figure 55, 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 1.0 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 and the switch on.

(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 and the switch off.

(6) To measure the worst-case error amplifier output current, the LM2586 is tested with the feedback voltage set to its low value ^{(Note 4)} and at its high value ^{(Note 5)}.

(7) When testing the minimum value, do not sink current from this pin—isolate it with a diode. If current is drawn from this pin, the frequency adjust circuit will begin operation (Figure 25).