米6体育平台手机版

ZHCSJ66 December 2018 TPS563240

PRODUCTION DATA.

T_J = –40°C to 125°C, V_IN = 12 V (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
SUPPLY CURRENT
I_VIN	Operating – non-switching supply current	V_IN current, EN = 5 V, V_FB = 0.7 V, T_J = 25°C		235	300	µA
I_VIN(SDN)	Shutdown supply current	V_IN current, EN = 0 V, T_J = 25°C		2.5	10	µA
LOGIC THRESHOLD
V_ENH	Enable threshold	Rising		1.27	1.34	V
V_ENL	Enable threshold	Falling	1.08	1.15		V
R_EN	EN pin resistance to GND	V_EN = 1 V	800	1000	1200	kΩ
V_FB VOLTAGE AND DISCHARGE RESISTANCE
V_FB	FB voltage	Continuous mode operation, T_J = 25°C	594	600	606	mV
V_FB	FB voltage	Continuous mode operation	588	600	612	mV
I_FB	FB input current	V_FB = 0.7 V		0	±50	nA
MOSFET
R_DS(on)h	High-side switch resistance	T_J = 25°C		70		mΩ
R_DS(on)l	Low-side switch resistance	T_J = 25°C		30		mΩ
CURRENT LIMIT
I_{ocl_h_source}	High side FET source Current limit		5.5	6.3	7.1	A
I_{ocl_l_source}	Low side FET source Current limit		3.1	3.9	4.7	A
I_{ocl_l_sink}	Low side FET sink Current limit			0		A
THERMAL SHUTDOWN
T_SDN	Thermal shutdown threshold⁽¹⁾	Shutdown temperature		160		°C
T_SDN	Thermal shutdown threshold⁽¹⁾	Hysteresis		25		°C
ON-TIME TIMER CONTROL
t_ON(MIN)	Minimum on time⁽¹⁾	V_IN = 12 V, load = 3 A		50		ns
t_OFF(MIN)	Minimum off time			250		ns
SOFT START
t_ss	Soft-start time	Internal soft-start time		1.7		ms
FREQUENCY
F_sw	Switching frequency			1400		kHz
OUTPUT UNDERVOLTAGE PROTECTION
V_UVP	Output UVP threshold	Hiccup detect (H > L)		65%
t_UVPDLY	UVP propagation delay			0.36		ms
t_HIC	UVP protection Hiccup Time before restart			25		ms
UVLO
UVLO	UVLO threshold	Wake up VIN voltage		4.2	4.4	V
		Shutdown VIN voltage	3.6	3.8
		Hysteresis VIN voltage		0.4

(1) Not production tested.