SLUSCC7C Data sheet

SLUSCC7C July 2016 – June 2018 TPS546C23

PRODUCTION DATA.

Package Options

Mechanical Data (Package|Pins)

RVF|40
- MPQF268C

Thermal pad, mechanical data (Package|Pins)

RVF|40
- QFND333E

Orderable Information

6.5 Electrical Characteristics

T_J = –40°C to 125°C, V_PVIN = V_AVIN= 12 V, R_RT = 40.2 kΩ; zero power dissipation (unless otherwise noted)

PARAMETER		TEST CONDITIONS		MIN	TYP	MAX	UNIT
INPUT SUPPLY
V_AVIN	Input supply voltage range			4.5		18	V
V_PVIN	Power stage voltage range			4.5		18	V
I_AVIN	Input Operating Current	Not switching			7.7	12	mA
UVLO
VIN_ON	Input turnon voltage	Factory default setting			4.5		V
		Programmable range, 15 different settings		4.25		7.75	V
		Accuracy		–5%		5%
VIN_OFF	Input turnoff voltage	Factory default setting			4		V
		Programmable range, 15 different settings		4		7.5	V
		Accuracy		–5%		5%
ERROR AMPLIFIER AND FEEDBACK VOLTAGE
V_FB	Feedback pin voltage	Default setting			600		mV
		Setpoint range⁽¹⁾		0.35		1.65	V
		Setpoint resolution⁽¹⁾			2^-9		V
V_FB(ACC)	Feedback pin voltage accuracy	V_FB = 600 mV, 0°C ≤ T_J ≤ 85°C⁽²⁾		–0.5%		0.5%	%
		V_FB = 600 mV, -40°C ≤ T_J ≤ 125°C⁽²⁾		–1%		1%
		V_FB = 1650 mV, -40°C ≤ T_J ≤ 125°C⁽²⁾		–1%		1%
		V_FB = 350 mV, -40°C ≤ T_J ≤ 125°C⁽²⁾		–1.5%		1.5%
A_OL	Open-loop gain⁽¹⁾			80			dB
G_BWP	Gain bandwidth product⁽¹⁾			15			MHz
I_FB	FB pin input bias current	V_FB = 0.6 V		-75		75	nA
I_COMP	Sourcing	V_FB = 0 V		1			mA
I_COMP	Sinking	V_FB = 1.2 V		1			mA
OSCILLATOR
f_SW	Adjustment range⁽²⁾			200		1000	kHz
	Switching frequency⁽²⁾	R_RT = 40.2 kΩ		450	500	550	kHz
V_RMP	Ramp peak-to-peak⁽¹⁾				V_AVIN/6.5		V
V_VLY	Valley voltage⁽¹⁾				1.23		V
SYNCHRONIZATION
V_IH(sync)	High-level input voltage			2.2			V
V_IL(sync)	Low-level input voltage					0.80	V
T_pw(sync)	Sync input iminimum pulse width	Fsw = 160kHz to 1.2MHz				200	ns
T_Mdelay(sync)	Delay from the rising edge of SYNC input to the SW rising edge of the loop master device				515		ns
T_S_delay(sync)	Delay from the falling edge of SYNC input to the SW rising edge of the loop slave device				515		ns
f_SYNC	Synchronization frequency			160		1200	kHz
Δf_SYNC	SYNC pin frequency range from free running frequency⁽¹⁾			–20%		20%
RESET
V_IH(reset)	High-level input voltage⁽¹⁾			1.35			V
V_IL(reset)	Low-level input voltage					0.8	V
T_pw(reset)	Minimum RESET_B pulse width			200			ns
BP6 REGULATOR
V_BP6	Regulator output voltage	I_BP6 = 10 mA		5.85	6.4	6.95	V
V_BP6(do)	Regulator dropout voltage	V_AVIN – V_BP6, V_AVIN = 4.5 V, I_BP6 = 25 mA		100	200	400	mV
I_BP6SC	Regulator short-circuit current⁽¹⁾	V_AVIN = 12 V			150		mA
V_BP6UV	Regulator UVLO voltage⁽¹⁾				3.73		V
V_BP6UV(hyst)	Regulator UVLO voltage hysteresis⁽¹⁾				270		mV
BOOTSTRAP
V_BOOT(drop)	Bootstrap voltage drop	I_BOOT = 5 mA				150	mV
BP3 REGULATOR
V_BP3	3-V regulator output voltage	V_AVIN ≥ 4.5 V, I_BP3 = 5 mA		3	3.2	3.4	V
I_BP3SC	3-V regulator short-circuit current⁽¹⁾			18	35		mA
PWM
T_ON(min)	Minimum controllable pulse width⁽¹⁾					100	ns
T_OFF(min)	Minimum off-time⁽¹⁾				515	550	ns
SOFT START
TON_RISE	Soft-start time	Factory default setting			3		ms
		Programmable range, 16 discrete settings⁽¹⁾⁽³⁾		0		100	ms
		Accuracy, TON_RISE = 3 ms, VOUT_COMMAND = 0.95 V		–10%		10%
TON_MAX_FAULT_LIMIT	Upper limit on the time to power up the output	Factory default setting⁽⁴⁾			0		ms
		Programmable range, 16 discrete settings⁽¹⁾⁽⁴⁾		0		100	ms
		Accuracy⁽¹⁾		–10%		10%
TON_DELAY	Turn-on delay	Factory default setting			0		ms
		Programmable range, 16 discrete settings⁽¹⁾		0		100	ms
		Accuracy⁽¹⁾		–10%		10%
SOFT STOP
TOFF_FALL	Soft-stop time	Factory default setting⁽⁵⁾			0		ms
		Programmable range, 16 discrete settings^⁽¹⁾⁽⁵⁾		0		100	ms
		Accuracy, TOFF_FALL = 1 ms, VOUT_COMMAND = 0.95V		–10%		10%
TOFF_DELAY	Turn-off delay	Factory default setting			0		ms
		Programmable range, 16 discrete settings⁽¹⁾		0		100	ms
		Accuracy⁽¹⁾		–10%		10%
REMOTE SENSE AMPLIFIER
V_DIFFO(ERROR)	Error Voltage from DIFFO to (RSP – RSN)	(V_RSP – V_RSN) = 0.6 V		–4		4	mV
		(V_RSP – V_RSN) = 1.2 V		–5		5
		(V_RSP – V_RSN) = 3 V		–15		15
BW	Closed-loop bandwidth⁽¹⁾			2			MHz
V_DIFFO(max)	Maximum DIFFO output voltage					V_BP6–0.2	V
I_DIFFO	DIFFO sourcing current			1			mA
I_DIFFO	DIFFO sinking current			1			mA
POWER STAGE
R_HS	High-side power device on-resistance	V_BOOT - V_SW = 4.5 V, T_J = 25°C			3.5		mΩ
R_HS	High-side power device on-resistance	V_BOOT - V_SW = 6.3V, T_J = 25°C			3.2		mΩ
R_LS	Low-side power device on-resistance	V_AVIN = 4.5 V, T_J = 25°C			1.5		mΩ
R_LS	Low-side power device on-resistance	V_AVIN ≥ 12 V, T_J = 25°C			1.4		mΩ
T_DEAD(LtoH)	Power stage driver dead-time from Low-side off to High-side on	V_AVIN ≥ 12 V, T_J = 25°C⁽¹⁾			15		ns
T_DEAD(HtoL)	Power stage driver dead-time from High-side off to Low-side on	V_AVIN ≥ 12 V, T_J = 25°C⁽¹⁾			15		ns
CURRENT SHARING
I_SHARE(acc)	Output current sharing accuracy of two devices defined as the ratio of the current difference between two devices to the total current	I_OUT ≥ 20 A per device		–15%		15%
I_SHARE(acc)	Output current sharing accuracy of two devices defined as the current difference between each device and the half of total current	I_OUT < 20 A per device		–3		3	A
LOW-SIDE CURRENT LIMIT PROTECTION
t_OFF(OC)	Off time between restart attempts⁽¹⁾				7 × TON_RISE		ms
IOUT_OC_FAULT_LIMIT	Output current overcurrent fault threshold	Factory default setting			42		A
IOUT_OC_FAULT_LIMIT	Output current overcurrent fault threshold	Programmable range		5		52	A
I_NEGOC	Negative output current overcurrent protection threshold			–60	-40	–20	A
IOUT_OC_WARN_LIMIT	Output current overcurrent warning threshold	Factory default setting			37		A
IOUT_OC_WARN_LIMIT	Output current overcurrent warning threshold	Programmable range		4		50	A
I_OC(acc)	Output current overcurrent fault accuracy	I_OUT ≥ 20 A		–15%		15%
HIGH-SIDE SHORT CIRCUIT PROTECTION
I_HSOC	High-side short-circuit protection fault threshold	(V_BOOT-VSW) = 6.3V, T_J = 25°C			65		A
POWER GOOD (PGOOD) AND OVERVOLTAGE/UNDERVOLTAGE WARNING
R_PGD	PGD pulldown resistance	V_DIFFO = 0, I_PGD = 5 mA			45	60	Ω
I_PGD(OH)	Output high open drain leakage current into PGD pin	V_PGD = 5 V				15	µA
V_PGD(OL)	PGD pin output low level voltage at no supply voltage	V_AVIN=0, I_PGD = 80 μA				0.8	V
V_FBOVW	Overvoltage warning threshold at FB pin (PGD fault threshold on rising)	Factory default, at V_REF = 600 mV		108	112	116	% V_REF
V_FBUVW	Undervoltage warning threshold at FB pin (PGD fault threshold on falling)	Factory default, at V_REF = 600 mV		84	88	92	% V_REF
V_PGD(rise)	PGD good threshold on rising and Undervotlage warning threshold de-assertation threshold at FB pin	V_REF = 600 mV			95		% V_REF
V_PGD(fall)	PGD good threshold on falling and Overvotlage warning threshold de-assertation threshold at FB pin	V_REF = 600 mV			105		% V_REF
OUTPUT OVERVOLTAGE AND UNDERVOLTAGE FAULT PROTECTION
V_FBOVF	Overvoltage fault threshold at FB pin	Factory default, at V_REF = 600 mV		113	117	121	% V_REF
V_FBUVF	Undervoltage fault threshold at FB pin	Factory default, at V_REF = 600mV		79	83	87	% V_REF
OUTPUT VOLTAGE TRIMMIN8
V_FBRES	Resolution of FB steps with VOUT_COMMAND, Trim and Margin				2^-9		V
VOUT_TRANSITION_RATE	Output voltage transition rate	Factory default setting			1		mV/µs
		Programmable range, 8 discrete settings		0.067		1.5	mV/µs
		Accuracy		–10%		10%
VOUT_SCALE_LOOP	Feedback loop scaling factor	Factory default setting			1
VOUT_SCALE_LOOP	Feedback loop scaling factor	Programmable range, 3 discrete settings		0.25		1
VOUT_COMMAND	Output voltage programmable register value, multiply by 2^-9 to get output voltage	Factor default setting			307
		Programmable range	VOUT_SCALE_LOOP = 1	179		845
			VOUT_SCALE_LOOP = 0.5⁽¹⁾	358		1690
			VOUT_SCALE_LOOP = 0.25⁽¹⁾	716		2816
TEMPERATURE SENSE AND THERMAL SHUTDOWN
T_SD	Junction thermal shutdown temperature⁽¹⁾			135	145	160	°C
T_HYST	Junction thermal shutdown hysteresis⁽¹⁾				25		°C
OT_FAULT_LIMIT	Internal overtemperature fault limit⁽¹⁾	Factory default setting			145		°C
OT_FAULT_LIMIT	Internal overtemperature fault limit⁽¹⁾	Programmable range		120		165	°C
OT_WARN_LIMIT	Internal overtemperature warning limit⁽¹⁾	Factory default setting			120		°C
OT_WARN_LIMIT	Internal overtemperature warning limit⁽¹⁾	Programmable range		100		140	°C
T_OT(hys)	Internal 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	DIFFO = 1.2 V		–2%		2%	%
M_VOUT(lsb)	Output voltage measurement bit resolution⁽¹⁾				2^-9		V
M_IOUT(rng)	Output current measurement range⁽¹⁾			0		52	A
M_IOUT(acc)	Output current measurement accuracy	I_OUT 20 A, T_J= 25°C		–10%	0	10%
		I_OUT ≥ 20 A		–15%		15%
		3A ≤ I_OUT<20 A		–3		3	A
M_IOUT(lsb)	Output current measurement bit resolution⁽¹⁾				62.5		mA
M_TSNS(rng)	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)	High-level input voltage on PMB_CLK, PMB_DATA, CNTL			1.35			V
V_IL(PMBUS)	Low-level input voltage on PMB_CLK, PMB_DATA, CNTL					0.8	V
VhysCNTL	Hysteresis on CNTL				170		mV
_IIH(PMBUS)	Input high level current into PMB_CLK, PMB_DATA			–10		10	μA
_IIL(PMBUS)	Input low level current into PMB_CLK, PMB_DATA			–10		10	μA
_ICNTL	CNTL pin pullup current			5		10	μA
_VOL(PMBUS)	Output low level voltage on PMB_DATA, SMB_ALRT	V_AVIN> 4.5 V, input current to PMB_DATA, SMB_ALRT = 4 mA				0.4	V
_IOH(PMBUS)	Output high level open drain leakage current into PMB_DATA, SMB_ALRT	Voltage on PMB_DATA, SMB_ALRT = 5.5 V				10	μA
_IOL(PMBUS)	Output low level open drain leakage current into PMB_DATA, SMB_ALRT	Voltage on PMB_DATA, SMB_ALRT < 0.4 V		4			mA
_FPMBUS	PMBus operating frequency range	Slave mode		10		400	kHz

(1) Specified by design. Not production tested.

(2) The parameter covers 4.5 V to 18 V of AVIN.

(3) The setting of TON_RISE of 0 ms means the unit to bring its output voltage to the programmed regulation value as quickly as possible, which results in an effective TON_RISE time of 1 ms (fastest time supported).

(4) The setting of TON_MAX_FAULT_LIMIT of 0 means disabling TON_MAX_FAULT response and reporting completely.

(5) The setting of TOFF_FALL of 0 ms means the unit to bring its output voltage down to 0 as quickly as possible, which results in an effective TOFF_FALL time of 1 ms (fastest time supported).