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ZHCSPP3 July 2022 TPS563300

PRODUCTION DATA

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机械数据 (封装 | 引脚)

DRL|8
- MPCS002E

散热焊盘机械数据 (封装 | 引脚)

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zhcspp3_oa

6.5 Electrical Characteristics

The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life of the product containing it. T_J = –40°C to +150°C, V_IN = 3.8 V to 30 V, unless otherwise noted.

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
POWER SUPPLY (VIN PIN)
V_IN	Operation input voltage		3.8		28	V
I_Q	Nonswitching quiescent current	EN = 5 V, V_FB = 0.85 V		20		µA
I_SHDN	Shutdown supply current	V_EN = 0 V		2		µA
V_{IN_UVLO}	Input undervoltage lockout thresholds	Rising threshold	3.4	3.6	3.8	V
		Falling threshold	3.1	3.3	3.5	V
		Hysteresis		300		mV
ENABLE (EN PIN)
V_{EN_RISE}	Enable threshold	Rising enable threshold		1.21	1.28	V
V_{EN_FALL}	Disable threshold	Falling disable threshold	1.1	1.17		V
I_p	EN pullup current	V_EN = 1.0 V		0.7		µA
I_h	EN pullup hysteresis current	V_EN = 1.5 V		1.4		µA
VOLTAGE REFERENCE (FB PIN)
V_FB	FB voltage	T_J = 25°C	788	800	812	mV
V_FB	FB voltage	T_J = –40°C to 150°C	784	800	816	mV
I_FB	Input leakage current	V_FB = 0.8 V			0.15	μA
INTEGRATED POWER MOSFETS
R_{DSON_HS}	High-side MOSFET on-resistance	T_J = 25°C, V_BST – SW = 5 V		76		mΩ
R_{DSON_LS}	Low-side MOSFET on-resistance	T_J = 25°C		32		mΩ
CURRENT LIMIT
I_{HS_LIMIT}	High-side MOSFET current limit		4.2	5	5.8	A
I_{LS_LIMIT}	Low-side MOSFET current limit		2.9	3.8	4.5	A
I_{PEAK_MIN}	Minimum peak inductor current			0.75		A
SOFT START
T_SS	Fixed internal soft-start time	Time from 0% × V_OUT to 100% × V_OUT		2		ms
OSCILLATOR FREQUENCY (RT PIN)
f_SW	Switching center frequency		450	500	550	kHz
t_{ON_MIN}⁽¹⁾	Minimum ON pulse width			70		ns
t_{OFF_MIN}⁽¹⁾	Minimum OFF pulse width			140		ns
t_{ON_MAX}⁽¹⁾	Maximum ON pulse width			7		μs
OUTPUT OVERVOLTAGE AND UNDERVOLTAGE PROTECTION
V_OVP	Output OVP threshold	OVP detect (L→H)	112%	115%	118%
V_OVP	Output OVP threshold	Hysteresis		5%
V_UVP	Output UVP threshold	UVP detect (H→L)		65%
t_{hiccup_ON}	UV hiccup ON time before entering hiccup mode after soft start ends			256		μs
t_{hiccup_OFF}	UV hiccup OFF time before restart			10.5 × t_SS		S
THERMAL SHUTDOWN
T_SHDN⁽¹⁾	Thermal shutdown threshold	Shutdown temperature		165		°C
T_HYS⁽¹⁾		Hysteresis		30		°C
SPREAD SPECTRUM FREQUENCY
f_m	Modulation frequency			f_SW / 128		kHz
f_spread	Internal spread oscillator frequency			±6%

(1) Not production tested, specified by design