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ZHCS920B May 2012 – April 2021 TPS54525

PRODUCTION DATA

封裝選項

機械數(shù)據(jù) (封裝 | 引腳)

PWP|14
- MPDS370A

散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)

PWP|14
- PPTD393A

訂購信息

6.5 Electrical Characteristics

over operating free-air temperature range, V_IN = 12V (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
SUPPLY CURRENT
I_VIN	Operating - non-switching supply current	V_IN current, T_A = 25°C, EN = 5 V, V_VFB = 0.8 V		900	1400	μA
I_VINSDN	Shutdown supply current	V_IN current, T_A = 25°C, EN = 0 V		3.6	10	μA
LOGIC THRESHOLD
V_ENH	EN high-level input voltage		1.6			V
V_ENL	EN low-level input voltage				0.6	V
R_EN	EN pin resistance to GND	V_EN = 12 V	220	440	880	kΩ
VFB VOLTAGE AND DISCHARGE RESISTANCE
V_FBTH	VFB threshold voltage	T_A = 25°C, V_O = 1.05 V, continuous mode	757	765	773	mV
V_FBTH	VFB threshold voltage	T_A = –40°C to 85°C, V_O = 1.05 V, continuous mode⁽¹⁾	754		776	mV
I_VFB	VFB input current	V_VFB = 0.8 V, T_A = 25°C		0	±0.15	μA
R_Dischg	V_O discharge resistance	V_EN = 0 V, V_O = 0.5 V, T_A = 25°C		50	100	?
VREG5 OUTPUT
V_VREG5	VREG5 output voltage	T_A = 25°C, 6.0 V < V_IN < 18 V, 0 < I_VREG5 < 5 mA	5.2	5.5	5.7	V
V_VREG5	VREG5 Line regulation	6.0 V < V_IN < 18 V, I_VREG5 = 5 mA			20	mV
V_VREG5	VREG5 Load regulation	0 mA < I_VREG5 < 5 mA			100	mV
I_VREG5	VREG5 Output current	V_IN = 6 V, V_VREG5 = 4 V, T_A = 25°C		60		mA
MOSFET
R_dsonh	High side switch resistance	T_A = 25°C, V_BST - V_SW1,2 = 5.5 V		63		m?
R_dsonl	Low side switch resistance	T_A = 25°C		33		m?
CURRENT LIMIT
I_ocl	Current limit	L_OUT = 1.5 μH⁽¹⁾	6.1	6.9	8.4	A
THERMAL SHUTDOWN
T_SDN	Thermal shutdown threshold	Shutdown temperature ⁽¹⁾		165		°C
T_SDN	Thermal shutdown threshold	Hysteresis ⁽¹⁾		35		°C
ON-TIME TIMER CONTROL
T_ON	On time	V_IN = 12 V, V_O = 1.05 V		155		ns
T_OFF(MIN)	Minimum off time	T_A = 25°C, V_VFB = 0.7 V		260	330	ns
SOFT START
I_SSC	SS charge current	V_SS = 1 V	4.2	6.0	7.8	μA
I_SSD	SS discharge current	V_SS = 0.5 V	0.1	0.2		mA
POWER GOOD
V_THPG	PG threshold	V_VFB rising (good)	85	90	95	%
V_THPG	PG threshold	V_VFB falling (fault)		85		%
I_PG	PG sink current	V_PG = 0.5 V	2.5	5		mA
OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION
V_OVP	Output OVP trip threshold	OVP detect	120	125	130	%
T_OVPDEL	Output OVP prop delay			10		μs
V_UVP	Output UVP trip threshold	UVP detect	60	65	70	%
V_UVP	Output UVP trip threshold	Hysteresis		10		%
T_UVPDEL	Output UVP delay			0.25		ms
T_UVPEN	Output UVP enable delay	Relative to soft-start time		x 1.7
UVLO
V_UVLO	UVLO threshold	Wake up VREG5 voltage	3.31	3.61	3.91	V
		Fall VREG5 voltage	2.82	3.12	3.42
		Hysteresis VREG5 voltage	0.37	0.49	0.61

(1) Not production tested.