SLUSC81 Data sheet

SLUSC81 May 2015 TPS544B25 , TPS544C25

PRODUCTION DATA.

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）

RVF|40
- MPQF268C

サーマルパッド・メカニカル・データ

RVF|40
- QFND333E

発注情報

7 Specifications

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) ⁽¹⁾

		MIN	MAX	UNIT
Input voltage range	VIN, VDD	–0.3	18	V
	VIN, VDD <2 ms transient	–0.3	19
	VIN – SW (VIN to SW differential)	–0.3	25
	VIN – SW (VIN to SW differential, <10 ns transient due to SW ringing)	–5	25
	BOOT	–0.3	37
	BOOT – SW (BOOT to SW differential)	–0.3	7
	BOOT – SW (BOOT to SW differential, <10 ns transient)	–0.3	7.5
	CLK, DATA	–0.3	5.5
	VSET, ADDR0, ADDR1, TSNS/SS	–0.3	3.6
	FB, SYNC/RESET_B, CNTL, VOUTS–, VOUTS+, RT	–0.3	7
Output voltage range	SW	–1	25	V
	SW <100 ns transient	–5	25
	BP6, COMP, DIFFO, PGOOD	–0.3	7
	SMBALERT	–0.3	5.5
	BP3	–0.3	3.6
Operating junction temperature range, T_J		–40	150	°C
Storage temperature range, T_stg		–55	150	°C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

7.2 ESD Ratings

			VALUE	UNIT
V_(ESD)	Electrostatic discharge	Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins⁽¹⁾	±2000	V
V_(ESD)	Electrostatic discharge	Charged device model (CDM), per JEDEC specification JESD22-C101, all pins⁽²⁾	±1500	V

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process

(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

		MIN	TYP	MAX	UNIT
V_DD	Controller input voltage	4.5	12	18	V
V_IN	Power stage input voltage	4.5	12	18	V
T_J	Junction temperature	–40		125	°C

7.4 Thermal Information

THERMAL METRIC⁽¹⁾		TPS544x25	UNIT
		PQFN (RVF)
		40 PINS
R_θJA	Junction-to-ambient thermal resistance	27.4	°C/W
R_θJC(top)	Junction-to-case (top) thermal resistance	18.3
R_θJB	Junction-to-board thermal resistance	4.2
ψ_JT	Junction-to-top characterization parameter	1.4
ψ_JB	Junction-to-board characterization parameter	4.2
R_θJC(bot)	Junction-to-case (bottom) thermal resistance	1.0

(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

7.5 Electrical Characteristics

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

PARAMETER		TEST CONDITIONS		MIN	TYP	MAX	UNIT
INPUT SUPPLY
V_VDD	Input supply voltage range			4.5		18	V
V_VIN	Power stage voltage range			4.5		18	V
I_VDD	Input operating current	Not switching			9.5	12	mA
UVLO
VIN_ON	Input turn on voltage	Factory default setting			4.5		V
		Programmable range, 15 different settings		4.25		7.75	V
		Accuracy		–5%		5%
VIN_OFF	Input turn off 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		940.5	950	959.5	mV
V_FB	Feedback pin voltage	Setpoint range⁽¹⁾		0.5		1.5	V
V_FB(ACC)	Feedback pin voltage accuracy	V_FB = 600 mV, 0°C ≤ T_J ≤ 85°C⁽²⁾		–0.5%		0.5%	%
		0.6 V ≤ V_FB ≤ 1.5 V⁽¹⁾		–1.0%		1.0%
		0.5 V ≤ V_FB < 0.6 V⁽¹⁾		–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 = 0.95 V		–75		75	nA
I_COMP	Sourcing	V_FB = 0 V		1			mA
I_COMP	Sinking	V_FB = 1.2 V		1			mA
VSET
I_Vset	VSET pin current			9.5	10.5	12	µA
V_Vset	Initial VOUT setting	R_Vset = 34.8 kΩ			950		mV
V_Vset(dis)	VSET disable threshold			2.41			V
OSCILLATOR
F_SW	Adjustment range⁽²⁾			200		1000	kHz
	Switching frequency	R_RT = 40.2 kΩ		425	500	575	kHz
	V_RMP	Ramp peak-to-peak⁽¹⁾			V_VDD/9.3	V_VDD/8.5	V_VDD/7.6	V
V_VLY	Valley voltage⁽¹⁾				0.75			V
SYNCHRONIZATION
V_IH(sync)	High-level input voltage			2.0			V
V_IL(sync)	Low-level input voltage					0.80	V
T_pw(sync)	Sync input minimum pulse width					100	ns
f_SYNC	Synchronization frequency			200		1200	kHz
Δf_SYNC	SYNC pin frequency range from free running frequency⁽¹⁾			-20%		20%
RESET_B
V_IH(reset)	High-level input voltage⁽¹⁾	3.3-V and 5-V logic		2.1			V
V_IH(reset)	High-level input voltage⁽¹⁾	1.8-V logic (factory default)		1.2
V_IL(reset)	Low-level input voltage	3.3-V and 5-V logic				0.8
V_IL(reset)	Low-level input voltage	1.8-V logic (factory default)				0.5
t_PW(reset)	Minimum RESET_B pulse width	R_VSET = 34.8 kΩ		200			ns
V_{vout_command(reset)}	Output voltage after reset triggered	R_VSET = 34.8 kΩ			950		mV
BP6 REGULATOR
V_BP6	Regulator output voltage	I_BP6 = 10 mA		5.85	6.4	6.9	V
V_BP6(do)	Regulator dropout voltage	V_VIN – V_BP6, V_VDD = 4.5 V, I_BP6 = 25 mA		50	200	400	mV
I_BP6SC	Regulator short-circuit current⁽¹⁾	V_VDD = 12 V			150		mA
V_BP6UV	Regulator UVLO voltage⁽¹⁾				3.73		V
V_BP6UV(hyst)	Regulator UVLO voltage hysteresis⁽¹⁾				320		mV
BOOTSTRAP
V_BOOT(drop)	Bootstrap voltage drop	I_BOOT = 5 mA				125	mV
BP3 REGULATOR
V_BP3	3-V regulator output voltage	V_VDD ≥ 4.5 V, I_BP3 = 5 mA		3.0	3.2	3.4	V
I_BP3SC	3-V regulator short-circuit current⁽¹⁾				35		mA
PWM
t_ON(min)	Minimum controllable pulse width⁽¹⁾					100	ns
SOFT-START
TON_RISE	Soft-start time	Factory default setting			5		ms
		Programmable range, 16 discrete settings⁽¹⁾⁽³⁾		0		100	ms
		Accuracy, TON_RISE = 1 ms		-10		10	%
TON_MAX_FAULT_LIMIT	Upper limit on the time to power up the output	Factory default setting			100		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		–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	%
SS PIN FOR INITIAL SOFT-START PROGRAMMING
I_SS	SS pin current			9.5	10.5	12	µA
V_SS(ivlow)	SS pin invalid low voltage					0.03	V
V_SS(ivhigh)	SS pin invalid high voltage			2.40			V
REMOTE SENSE AMPLIFIER
V_DIFFO(err)	Error voltage from DIFFO to (V_OUTS+ – V_OUTS–)	(V_OUTS+ – V_OUTS–) = 0.6 V		–5		5	mV
		(V_OUTS+ – V_OUTS–) = 1.2 V		–7		7
		(V_OUTS+ – V_OUTS–) = 3.0 V		–15		15
A_RSA	Differential gain			0.995		1.005	V/V
BW_RSA	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_VDD ≥ 12 V, T_J = 25°C			5.5		mΩ
R_LS	Low-side power device on-resistance	V_VDD ≥ 12 V, (BOOT - SW) = 6.5 V, T_J = 25°C			2.0		mΩ
CURRENT SENSE AMPLIFIER
t_LS(minCS)	Minimum LDRV pulse width for valid overcurrent and current mornitoring⁽¹⁾				400		ns
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	TPS544C25		36		A
		Programmable range	TPS544C25	5		40
		Factory default setting	TPS544B25		24
		Programmable range	TPS544B25	5		36
IOUT_OC_WARN_ LIMIT	Output current overcurrent warning threshold	Factory default setting	TPS544C25		34
		Programmable range	TPS544C25	4		39.5
		Factory default setting	TPS544B25		22
		Programmable range	TPS544B25	4		35.5
I_OC(acc)	Output current overcurrent fault accuracy	I_OUT ≥ 20 A		–10%		+10%
I_OC(acc)	Output current overcurrent warning accuracy	I_OUT ≥ 20 A⁽¹⁾		–10%		+10%
HIGH-SIDE SHORT CIRCUIT PROTECTION
I_HSOC	High-side short-circuit protection peak current threshold		TPS544C25	40		75	A
I_HSOC	High-side short-circuit protection peak current threshold		TPS544B25	33		66	A
POWER GOOD (PGOOD) AND OVERVOLTAGE/UNDERVOLTAGE WARNING
V_PG(hyst)	PGOOD and over/under votlage warning threshold hysteresis at DIFFO pin	VOUT_SCALE_LOOP = 1.0		15		75	mV
R_PGOOD	PGOOD pull-down resistance	V_DIFFO = 0 V, I_PGOOD = 5 mA		30	45	60	Ω
I_PGOOD(lk)	PGOOD pin leakage current	V_PGOOD = 5 V				15	µA
VOUT_OV_WARN_LIMIT	Overvoltage warning threshold at DIFFO pin	VOUT_SCALE_LOOP = 1.0, factory default setting		1165	1201	1237	mV
VOUT_OV_WARN_LIMIT	Overvoltage warning threshold at DIFFO pin	VOUT_SCALE_LOOP = 1.0, programmable range⁽¹⁾		527		1797
VOUT_UV_WARN_LIMIT	Undervoltage warning threshold at DIFFO pin	VOUT_SCALE_LOOP = 1.0, factory default setting		600	631	650
VOUT_UV_WARN_LIMIT	Undervoltage warning threshold at DIFFO pin	VOUT_SCALE_LOOP = 1.0, programmable range⁽¹⁾		350		1428
V_{UVOV(warnhyst)}	Over/under votlage warning threshold hysteresis at DIFFO pin	VOUT_SCALE_LOOP = 1.0⁽¹⁾		15		75
OUTPUT OVERVOLTAGE AND UNDERVOLTAGE FAULT PROTECTION
VOUT_OV_FAULT_LIMIT	Overvoltage fault threshold at DIFFO pin	VOUT_SCALE_LOOP = 1.0, factory default setting		1243	1281	1330	mV
VOUT_OV_FAULT_LIMIT	Overvoltage fault threshold at DIFFO pin	VOUT_SCALE_LOOP = 1.0, programmable range⁽¹⁾		529		1799
VOUT_UV_FAULT_LIMIT	Undervoltage fault threshold at DIFFO pin	VOUT_SCALE_LOOP = 1.0, factory default setting		550	594	610
VOUT_UV_FAULT_LIMIT	Undervoltage fault threshold at DIFFO pin	VOUT_SCALE_LOOP = 1.0, programmable range⁽¹⁾⁽⁴⁾		346		1426
V_{UVOV(flthyst)}	Over/under votlage fault threshold hysteresis at DIFFO pin	VOUT_SCALE_LOOP = 1.0⁽¹⁾		15		75
OUTPUT VOLTAGE TRIMMING
VOUT_ TRANSITION_ RATE	Output voltage transition rate	Factory default setting			1.0		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			486
		VOUT_SCALE_LOOP = 1.0, programmable range⁽¹⁾		256		768
		VOUT_SCALE_LOOP = 0.5, programmable range⁽¹⁾		512		1536
		VOUT_SCALE_LOOP = 0.25, programmable range⁽¹⁾		1024		3072
TEMPERATURE SENSE AND THERMAL SHUTDOWN
T_SD	Junction thermal shutdown temperature⁽¹⁾			135	145	155	°C
T_HYST	Junction thermal shutdown hysteresis⁽¹⁾			15	20	25	°C
V_TSNS	Voltage range on TSNS/SS pin⁽¹⁾			0		1.00	V
OT_FAULT_LIMIT	External overtemperature fault limit⁽¹⁾	Factory default setting			125		°C
OT_FAULT_LIMIT	External overtemperature fault limit⁽¹⁾	Programmable range		120		165
OT_WARN_LIMIT	External overtemperature warning limit⁽¹⁾	Factory default setting			100
OT_WARN_LIMIT	External overtemperature warning limit⁽¹⁾	Programmable range		100		140
T_OT(hys)	External overtemperature fault, warning hysteresis⁽¹⁾			15	20	25
MEASUREMENT SYSTEM
M_VOUT(rng)	Output voltage measurement range			0.5		5.8	V
M_VOUT(acc)	Output voltage measurement accuracy			–2.0%		2.0%
M_VOUT(lsb)	Output voltage measurement bit resolution⁽¹⁾				1.953		mV
M_IOUT(rng)	Output current measurement range			0		40	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⁽¹⁾		–3		3	A
M_IOUT(lsb)	Output current measurement bit resolution⁽¹⁾				62.5		mA
M_TSNS(rng)	External temperature sense range⁽¹⁾			–40		165	°C
M_TSNS(acc)	External temperature sense accuracy⁽¹⁾	-40°C ≤ T_J(sensor) ≤ 165°C		–5		5
M_TSNS(lsb)	External temperature sense bit resolution⁽¹⁾				1
PMBus INTERFACE ADDRESSING
I_ADD	Address pin bias current			9.5	10.5	12	µA
V_ADD(ivlow)	Address pin illegal low voltage					0.05	V
V_ADD(ivhigh)	Address pin illegal high voltage			2.40			V
PMBus™ INTERFACE
V_IH	Input high voltage, CLK, DATA, CNTL	3.3-V/5-V logic		2.1			V
V_IH	Input high voltage, CLK, DATA, CNTL	1.8-V logic (factory default)		1.2			V
V_IL	Input low voltage, CLK, DATA, CNTL	3.3-V/5-V logic				0.8	V
V_IL	Input low voltage, CLK, DATA, CNTL	1.8-V logic (factory default)				0.5	V
I_IH	Input high level current, CLK, DATA			-10		10	µA
I_IL	Input low level current, CLK, DATA			-10		10	µA
I_CNTL	CNTL pin pull-up current			5		10	µA
V_OL	Output low level voltage, DATA, SMBALERT	V_DD > 4.5 V, input current to DATA, SMBALERT = 4mA				0.4	V
I_OH	Output high level open drain leakage current, DATA, SMBALERT	Voltage on DATA, SMBALERT = 5.5V		-10		10	µA
I_OL	Output low level open drain leakage current, DATA, SMBALERT	Voltage on DATA, SMBALERT = 0.4V		4.0			mA
I_PMB	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 VDD.

(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 and VOUT_UV_FAULT_LIMIT of 0 means disabling TON_MAX_FAULT and VOUT_UV_FAULT response and reporting, respectively.

(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).

7.6 Typical Characteristics

V_IN = V_DD = 12 V, T_A = 25 ºC, R_RT = 40.2 kΩ (unless otherwise specified). Safe operating area curves were measured using a Texas Instruments Evaluation Module.

V_IN = 5 V	L = 470 nH	No Snubber
f_SW = 500 kHz	R_DCR = 0.3 mΩ	R_BOOT = 0 Ω

Figure 1. Efficiency vs. Output Current

Figure 3. Low-Side MOSFET On-Resistance (R_DS(on))
vs. Junction Temperature

V_FB = 600 mV

Figure 5. Feedback Voltage vs. Junction Temperature

Figure 7. Normalized Switching Frequency
vs. Junction Temperature

I_BP6 = 10 mA

V_VIN = V_VDD= 12 V

Figure 9. BP6 Voltage vs. Junction Temperature

Figure 11. PGOOD Pull-Down Resistance
vs. Junction Temperature

VIN_OFF = 4.0 V

Figure 13. Turn-Off Voltage vs. Junction Temperature

V_VIN = V_VDD= 12 V

Figure 15. READ_VOUT Accuracy vs. Junction Temperature

OCF = 20 A

V_VIN = V_VDD= 12 V

Figure 17. Overcurrent Fault Protection (OCF) Accuracy
vs. Junction Temperature

V_IN = 5 V

V_OUT = 1.0 V

f_SW = 1 MHz

Figure 19. Safe Operating Area

V_IN = 5 V

V_OUT = 1.0 V

f_SW = 500 kHz

Figure 21. Safe Operating Area

V_IN = 5 V

V_OUT = 1.5 V

f_SW = 500 kHz

Figure 23. Safe Operating Area

V_IN = 5 V

V_OUT = 3.3 V

f_SW = 500 kHz

Figure 25. Safe Operating Area

V_IN = 12 V

V_OUT = 1.0 V

f_SW = 500 kHz

Figure 27. Safe Operating Area

V_IN = 12 V

V_OUT = 1.5 V

f_SW = 500 kHz

Figure 29. Safe Operating Area

V_IN = 12 V

V_OUT = 3.3 V

f_SW = 500 kHz

Figure 31. Safe Operating Area

V_IN = 12 V	L = 470 nH	No Snubber
f_SW = 500 kHz	R_DCR = 0.3 mΩ	R_BOOT = 0 Ω

Figure 2. Efficiency vs. Output Current

Figure 4. High-Side MOSFET On-Resistance (R_DS(on))
vs. Junction Temperature

V_FB = 950 mV

Figure 6. Feedback Voltage vs. Junction Temperature

Figure 8. Non-Switching Input Current (I_VDD)
vs. Junction Temperature

I_BP3 = 5 mA

V_VIN = V_VDD= 12 V

Figure 10. BP3 Voltage vs. Junction Temperature

VIN_ON = 4.5 V

Figure 12. Turn-On Voltage vs. Junction Temperature

I_OUT = 20 A

V_VIN = V_VDD= 12 V

Figure 14. READ_IOUT Accuracy vs. Junction Temperature

BOOT - SW = 6.5 V

V_VIN = V_VDD= 12 V

Figure 16. High-Side Overcurrent Protection
vs. Junction Temperature

V_VIN = V_VDD= 12 V

OCF = 36 A (TPS544C25)

OCF = 24 A (TPS544B25)

Figure 18. Overcurrent Fault Protection (OCF)
vs. Junction Temperature

V_IN = 5 V

V_OUT = 1.0 V

f_SW = 300 kHz

Figure 20. Safe Operating Area

V_IN = 5 V

V_OUT = 1.5 V

f_SW = 300 kHz

Figure 22. Safe Operating Area

V_IN = 5 V

V_OUT = 3.3 V

f_SW = 300 kHz

Figure 24. Safe Operating Area

V_IN = 12 V

V_OUT = 1.0 V

f_SW = 300 kHz

Figure 26. Safe Operating Area

V_IN = 12 V

V_OUT = 1.5 V

f_SW = 300 kHz

Figure 28. Safe Operating Area

V_IN = 12 V

V_OUT = 3.3 V

f_SW = 300 kHz

Figure 30. Safe Operating Area