米6体育平台手机版

ZHCSG68F MARCH 2017 – JANUARY 2019 TPSM846C23

PRODUCTION DATA.

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机械数据 (封装 | 引脚)

MOL|59
- MPQF484B

散热焊盘机械数据 (封装 | 引脚)

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6.7 Programmable Characteristics

Over operating free-air temperature range, V_IN = 12 V, ƒ_SW = 500 kHz (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
SOFT START (PMBus Programmable)
TON_RISE	Soft-start time	Factory default setting		3		ms
		Programmable range, 16 discrete settings⁽¹⁾⁽²⁾	0		100	ms
		Accuracy, TON_RISE = 3 ms	–10%		10%
TON_MAX_ FAULT_LIMIT	Upper limit in time to power up the output	Factory default setting⁽³⁾		0		ms
		Programmable range, 16 discrete settings⁽¹⁾⁽³⁾	0		100	ms
		Accuracy⁽¹⁾	–10%		10%
TON_DELAY	Turnon delay	Factory default setting		0		ms
		Programmable range, 16 discrete settings ⁽¹⁾	0		100	ms
		Accuracy⁽¹⁾	–10%		10%
SOFT STOP (PMBus Programmable)
TOFF_FALL	Soft-start time	Factory default setting		3		ms
		Programmable range, 16 discrete settings ⁽¹⁾⁽²⁾	0		100	ms
		Accuracy, TOFF_FALL= 1 ms	–10%		10%
TOFF_DELAY	Turnon delay	Factory default setting⁽²⁾		0		ms
		Programmable range, 16 discrete settings⁽¹⁾	0		100	ms
		Accuracy⁽¹⁾	–10%		10%
UNDERVOLTAGE LOCKOUT (UVLO) (PMBus Programmable)
VIN_ON	Input turnon voltage	Factory default setting		4.5		V
		Programmable range, 15 discrete settings ⁽¹⁾	4.25		7.75	V
		Accuracy	–5%		5%
VIN_OFF	Input turnoff voltage	Factory default setting		4		V
		Programmable range, 15 discrete settings⁽¹⁾	4		7.5	V
		Accuracy⁽¹⁾	–10%		10%
TEMPERATURE SENSE AND THERMAL SHUTDOWN
T_SD	Junction thermal shutdown temperature⁽¹⁾			145	160	°C
T_HYST	Thermal shutdown hysteresis⁽¹⁾			25		°C
OT_FAULT _LIMIT	Overtemperature fault limit	Factory default setting		145		°C
OT_FAULT _LIMIT	Overtemperature fault limit	Programmable range⁽¹⁾	120		165	°C
OT_WARN _LIMIT	Overtemperature warning limit	Factory default setting		120		°C
OT_WARN _LIMIT	Overtemperature warning limit	Programmable range⁽¹⁾	100		140	°C
T_OT(hys)	Overtemperature fault warning hysteresis⁽¹⁾		15	20	25	°C
MEASUREMENT SYSTEM
M_VOUT(rng)	Output voltage measurement range⁽¹⁾		0		5.8	V
M_VOUT(acc)	Output voltage measurement accuracy⁽¹⁾	V_OUT = 1.2 V	–2%		2%
M_VOUT(lsb)	Output voltage measurement bit resolution⁽¹⁾			2^{– 9}		V
M_IOUT(mg)	Output current measurement range⁽¹⁾		0		52	A
M_IOUT(acc)	Output current measurement accuracy	I_OUT ≥ 20 A	–15%		15%
M_IOUT(acc)	Output current measurement accuracy	3 A ≤ I_OUT ≤ 20 A	–3		3	A
M_IOUT(lsb)	Output current measurement bit resolution⁽¹⁾			62.5		mA
M_TSNS(mg)	Internal temperature sense range⁽¹⁾		–40		165	°C
M_TSNS(acc)	Internal temperature sense accuracy⁽¹⁾	–40°C ≤ T_J ≤ 165°C	–5		5	°C
M_TSNS(lsb)	Internal temperature sense bit resolution⁽¹⁾			1		°C
PMBus INTERFACE
V_IH(PMBUS)	Logic-high voltage on CLK, DATA, CNTL		1.35			V
V_IL(PMBUS)	Logic-low voltage on CLK, DATA, CNTL				0.8	V
V_hysCNTL	Hysteresis on CNTL			170		mV
I_IH(PMBUS)	Input high-level current into CLK, DATA		–10		10	µA
I_IL(PMBUS)	Input low-level current into CLK, DATA		–10		10	µA
I_CNTL	CNTL pin pullup current		5		10	µA
V_OL(PMBUS)	Output low-level voltage on DATA, ALERT	V_IN > 4.5 V, I_OL(PMBUS) = 4 mA			0.4	V
I_OH(PMBUS)	Output high-level leakage current into DATA, ALERT	Voltage on DATA, ALERT = 5.5 V			10	µA
I_OL(PMBUS)	Output low-level sinking current into DATA, ALERT	Voltage on DATA, ALERT< 0.4 V	4			mA
ƒ_PMBUS	PMBus operating frequency	Slave mode	10		400	kHz

(1) Specified by design. Not production tested.

(2) Setting TON_RISE or TOFF_FALL to 0 ms programs the device to bring its output voltage up to the programmed regulation value or down to 0 V as quickly as possible, resulting in an effective TON_RISE and TOFF_FALL time of 1 ms.

(3) Setting TON_MAX_FAULT_LIMIT to 0 disables the TON_MAX_FAULT response.