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ZHCS189E June 2011 – December 2015 TPS43335-Q1 , TPS43336-Q1

PRODUCTION DATA.

封裝選項

機械數據 (封裝 | 引腳)

DAP|38
- MPDS381A

散熱焊盤機械數據 (封裝 | 引腳)

DAP|38
- PPTD158C

訂購信息

6 Specifications

6.1 Absolute Maximum Ratings

See ⁽¹⁾

		MIN	MAX	UNIT
Voltage	Input voltage: VIN, VBAT	–0.3	60	V
Voltage (buck function: BuckA and BuckB)	Ground: PGNDA–AGND, PGNDB–AGND	–0.3	0.3	V
	Enable inputs: ENA, ENB	–0.3	60
	Bootstrap inputs: CBA, CBB	–0.3	68
	Bootstrap inputs: CBA–PHA, CBB–PHB	–0.3	8.8
	Phase inputs: PHA, PHB	–0.7	60
	Phase inputs: PHA, PHB (for 150 ns)	–1	60
	Feedback inputs: FBA, FBB	–0.3	13
	Error amplifier outputs: COMPA, COMPB	–0.3	13
	High-side MOSFET driver: GA1–PHA, GB1–PHB	–0.3	8.8
	Low-side MOSFET drivers: GA2–PGNDA, GB2–PGNDB	–0.3	8.8
	Current-sense voltage: SA1, SA2, SB1, SB2	–0.3	13
	Soft start: SSA, SSB	–0.3	13
	Power-good output: PGA, PGB	–0.3	13
	Power-good delay: DLYAB	–0.3	13
	Switching-frequency timing resistor: RT	–0.3	13
	SYNC, EXTSUP	–0.3	13
Voltage (boost function)	Low-side MOSFET driver: GC1–PGNDA	–0.3	8.8	V
	Error-amplifier output: COMPC	–0.3	13
	Enable input: ENC	–0.3	13
	Current-limit sense: DS	–0.3	60
	Output-voltage select: DIV	–0.3	8.8
Voltage (PMOS driver)	P-channel MOSFET driver: GC2	–0.3	60	V
Voltage (PMOS driver)	P-channel MOSFET driver: VIN–GC2	–0.3	8.8	V
Voltage	Gate-driver supply: VREG	–0.3	8.8	V
Temperature	Junction temperature, T_J	–40	150	°C
	Operating temperature, T_A	–40	125
	Storage temperature, T_stg	–55	165

(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.

6.2 ESD Ratings

				VALUE	UNIT
V_(ESD)	Electrostatic discharge	Human-body model (HBM), per AEC Q100-002⁽¹⁾		±2000	V
		Charged-device model (CDM), per AEC Q100-011	FBA, FBB, RT, DLYAB	±400
			VBAT, ENC, SYNC, VIN	±750
			All other pins	±500
		Machine model (MM)	PGA, PGB	±150
		Machine model (MM)	All other pins	±200

(1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

6.3 Recommended Operating Conditions

		MIN	MAX	UNIT
Buck function: BuckA and BuckB voltage	Input voltage: VIN, VBAT	4	40	V
	Enable inputs: ENA, ENB	0	40
	Boot inputs: CBA, CBB	4	48
	Phase inputs: PHA, PHB	–0.6	40
	Current-sense voltage: SA1, SA2, SB1, SB2	0	11
	Power-good output: PGA, PGB	0	11
	SYNC, EXTSUP	0	9
Boost function	Enable input: ENC	0	9	V
	Voltage sense: DS		40
	DIV	0	V_REG
Operating temperature, T_A		–40	125	°C

6.4 Thermal Information

THERMAL METRIC⁽¹⁾		TPS4333x-Q1	UNIT
		DAP (HTSSOP)
		38 PINS
R_θJA	Junction-to-ambient thermal resistance	27.3	°C/W
R_θJC(top)	Junction-to-case (top) thermal resistance	19.6	°C/W
R_θJB	Junction-to-board thermal resistance	15.9	°C/W
ψ_JT	Junction-to-top characterization parameter	0.24	°C/W
ψ_JB	Junction-to-board characterization parameter	6.6	°C/W
R_θJC(bot)	Junction-to-case (bottom) thermal resistance	1.2	°C/W

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

6.5 DC Electrical Characteristics

V_IN = 8 V to 18 V, T_J = –40°C to 150°C (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
INPUT SUPPLY
V_BAT	Supply voltage	Boost controller enabled, after satisfying initial start-up condition	2		40	V
V_IN	Input voltage required for device on initial start-up		6.5		40	V
V_IN	Buck regulator operating range after initial start-up		4		40	V
V_IN(UV)	Buck undervoltage lockout	V_IN falling. After a reset, initial start-up conditions may apply.⁽³⁾	3.5	3.6	3.8	V
V_IN(UV)	Buck undervoltage lockout	V_IN rising. After a reset, initial start-up conditions may apply.⁽³⁾		3.8	4	V
V_{BOOST_UNLOCK}	Boost unlock threshold	V_BAT rising	8.2	8.5	8.8	V
I_{q_LPM_}	LPM quiescent current: ⁽¹⁾	V_IN = 13 V, BuckA: LPM, BuckB: off, T_A = 25°C		30	40	µA
		V_IN = 13 V, BuckB: LPM, BuckA: off, T_A = 25°C		30	40	µA
		V_IN = 13 V, BuckA, B: LPM, T_A = 25°C		35	45	µA
I_{q_LPM}	LPM quiescent current: ⁽¹⁾	V_IN = 13 V, BuckA: LPM, BuckB: off, T_A = 125°C		40	50	µA
		V_IN = 13 V, BuckB: LPM, BuckA: off, T_A = 125°C		40	50	µA
		V_IN = 13 V, BuckA, B: LPM, T_A = 125°C		45	55	µA
I_{q_NRM}	Quiescent current: normal (PWM) mode⁽¹⁾	SYNC = HIGH, T_A = 25°C		4.85	5.3	mA
		V_IN = 13 V, BuckA: CCM, BuckB: off, T_A = 25°C		4.85	5.3
		V_IN = 13 V, BuckB: CCM, BuckA: off, T_A = 25°C		4.85	5.3
		V_IN = 13 V, BuckA, B: CCM, T_A = 25°C		7	7.6
I_{q_NRM}	Quiescent current: normal (PWM) mode⁽¹⁾	SYNC = HIGH, T_A = 125°C		5	5.5	mA
		V_IN = 13 V, BuckA: CCM, BuckB: off, T_A = 125°C		5	5.5
		V_IN = 13 V, BuckB: CCM, BuckA: off, T_A = 125°C		5	5.5
		V_IN = 13 V, BuckA, B: CCM, T_A = 125°C		7.5	8
I_{bat_sh}	Shutdown current	BuckA, B: off, V_BAT = 13 V , T_A = 25°C		2.5	4	µA
I_{bat_sh}	Shutdown current	BuckA, B: off, V_BAT = 13 V, T_A = 125°C		3	5	µA
INPUT VOLTAGE V_BAT - UNDERVOLTAGE LOCKOUT
V_BAT(UV)	Boost-input undervoltage	V_BAT falling. After a reset, initial start-up conditions may apply.⁽³⁾	1.8	1.9	2	V
V_BAT(UV)	Boost-input undervoltage	V_BAT rising. After a reset, initial start-up conditions may apply.⁽³⁾	2.4	2.5	2.6	V
UVLO_Hys	Hysteresis		500	600	700	mV
UVLO_filter	Filter time			5		µs
INPUT VOLTAGE V_IN - OVERVOLTAGE LOCKOUT
V_OVLO	Overvoltage shutdown	V_IN rising	45	46	47	V
V_OVLO	Overvoltage shutdown	V_IN falling	43	44	45	V
OVLO_Hys	Hysteresis		1	2	3	V
OVLO_filter	Filter time			5		µs
BOOST CONTROLLER
V_boost7V	Boost V_OUT = 7 V	DIV = low, V_BAT = 2 V to 7 V	6.8	7	7.3	V
V_boost7V-th	Boost-enable threshold	Boost V_OUT = 7 V, V_BAT falling	7.5	8	8.5	V
	Boost-disable threshold	Boost V_OUT = 7 V, V_BAT rising	8	8.5	9
	Boost hysteresis	Boost V_OUT = 7 V, V_BAT rising or falling	0.4	0.5	0.6
V_boost10V	Boost V_OUT = 10 V	DIV = open, V_BAT = 2 V to 10 V	9.7	10	10.4	V
V_boost10V-th	Boost-enable threshold	Boost V_OUT = 10 V, V_BAT falling	10.5	11	11.5	V
	Boost-disable threshold	Boost V_OUT = 10 V, V_BAT rising	11	11.5	12
	Boost hysteresis	Boost V_OUT = 10 V, V_BAT rising or falling	0.4	0.5	0.6
V_boost11V	Boost V_OUT = 11 V	DIV = V_REG, V_BAT = 2 V to 11 V	10.7	11	11.4	V
V_boost11V-th	Boost-enable threshold	Boost V_OUT = 11 V, V_BAT falling	11.5	12	12.5	V
	Boost-disable threshold	Boost V_OUT = 11 V, V_BAT rising	12	12.5	13
	Boost hysteresis	Boost V_OUT = 11 V, V_BAT rising or falling	0.4	0.5	0.6
BOOST-SWITCH CURRENT LIMIT
V_DS	Current-limit sensing	DS input with respect to PGNDA	0.175	0.2	0.225	V
t_DS	Leading-edge blanking			200		ns
GATE DRIVER FOR BOOST CONTROLLER
I_{GC1 Peak}	Gate-driver peak current			1.5		A
r_DS(on)	Source and sink driver	V_REG = 5.8 V, I_GC1 current = 200 mA			2	Ω
GATE DRIVER FOR PMOS
r_DS(on)	PMOS OFF			10	20	Ω
I_{PMOS_ON}	Gate current	V_IN = 13.5 V, V_GS = –5 V	10			mA
t_{delay_ON}	Turnon delay	C = 10 nF		5	10	µs
BOOST-CONTROLLER SWITCHING FREQUENCY
f_sw-Boost	Boost switching frequency		f_{SW_Buck} / 2			kHz
D_Boost	Boost duty cycle				90%
ERROR AMPLIFIER (OTA) FOR BOOST CONVERTERS
Gm_BOOST	Forward transconductance	V_BAT = 12 V	0.8		1.35	mS
Gm_BOOST	Forward transconductance	V_BAT = 5 V	0.35		0.65	mS
BUCK CONTROLLERS
V_BuckA or V_BuckB	Adjustable output-voltage range		0.9		11	V
V_{ref, NRM}	Internal reference and tolerance voltage in normal mode	Measure FBX pin	0.792	0.800	0.808	V
V_{ref, NRM}	Internal reference and tolerance voltage in normal mode		–1%		1%
V_{ref, LPM}	Internal reference and tolerance voltage in low-power mode	Measure FBX pin	0.784	0.800	0.816	V
V_{ref, LPM}	Internal reference and tolerance voltage in low-power mode		–2%		2%
V_sense	V sense for forward-current limit in CCM	FBx = 0.75 V (low duty cycle)	60	75	90	mV
V_sense	V sense for reverse-current limit in CCM	FBx = 1 V	–65	–37.5	–23	mV
V_I-Foldback	V sense for output short	FBx = 0 V	17	32.5	48	mV
t_dead	Shoot-through delay, blanking time			20		ns
DC_NRM	High-side minimum on-time			100		ns
DC_NRM	Maximum duty cycle (digitally controlled)			98.75%
DC_LPM	Duty cycle, LPM				80%
I_{LPM_Entry}	LPM entry-threshold load current as fraction of maximum set load current			1%	See⁽²⁾
I_{LPM_Exit}	LPM exit-threshold load current as fraction of maximum set load current		See⁽²⁾	10%
HIGH-SIDE EXTERNAL NMOS GATE DRIVERS FOR BUCK CONTROLLER
I_{GX1_peak}	Gate-driver peak current			0.7		A
r_DS(on)	Source and sink driver	V_REG = 5.8 V, I_GX1current = 200 mA			4	Ω
LOW-SIDE NMOS GATE DRIVERS FOR BUCK CONTROLLER
I_{GX2_peak}	Gate driver peak current			0.7		A
R_{DS ON}	Source and sink driver	V_REG = 5.8 V, I_GX2 current = 200 mA			4	Ω
ERROR AMPLIFIER (OTA) FOR BUCK CONVERTERS
Gm_BUCK	Transconductance	COMPA, COMPB = 0.8 V, source/sink = 5 µA, test in feedback loop	0.72	1	1.35	mS
I_{PULLUP_FBx}	Pullup current at FBx pins	FBx = 0 V	50	100	200	nA
DIGITAL INPUTS: ENA, ENB, ENC, SYNC
V_IH	Higher threshold	V_IN= 13 V	1.7			V
V_IL	Lower threshold	V_IN = 13 V			0.7	V
R_{IH_SYNC}	Pulldown resistance on SYNC	V_SYNC = 5 V		500		kΩ
R_{IL_ENC}	Pulldown resistance on ENC	V_ENC = 5 V		500		kΩ
I_{IL_ENx}	Pullup current source on ENA, ENB	V_ENx = 0 V,		0.5	2	µA
BOOST OUTPUT VOLTAGE: DIV
V_{IH_DIV}	Higher threshold	V_REG = 5.8 V	V_REG – 0.2			V
V_{IL_DIV}	Lower threshold				0.2	V
V_{oz_DIV}	Voltage on DIV if unconnected	Voltage on DIV if unconnected		V_REG / 2		V
SWITCHING PARAMETER – BUCK DC-DC CONTROLLERS
f_{SW_Buck}	Buck switching frequency	RT pin: GND	360	400	440	kHz
f_{SW_Buck}	Buck switching frequency	RT pin: 60-kΩ external resistor	360	400	440	kHz
f_{SW_adj}	Buck adjustable range with external resistor	RT pin: external resistor	150		600	kHz
f_SYNC	Buck synchronization range	External clock input	150		600	kHz
f_SS	Spread-spectrum spreading	TPS43336-Q1 only		5%
INTERNAL GATE-DRIVER SUPPLY
V_REG	Internal regulated supply	V_IN = 8 V to 18 V, V_EXTSUP = 0 V, SYNC = high	5.5	5.8	6.1	V
V_REG	Load regulation	I_VREG = 0 mA to 100 mA, V_EXTSUP = 0 V, SYNC = high		0.2%	1%
V_REG(EXTSUP)	Internal regulated supply	V_EXTSUP = 8.5 V	7.2	7.5	7.8	V
V_REG(EXTSUP)	Load regulation	I_EXTSUP = 0 mA to 125 mA, SYNC = High V_EXTSUP = 8.5 V to 13 V		0.2%	1%
V_EXTSUP-th	EXTSUP switch-over voltage threshold	I_VREG = 0 mA to 100 mA, V_EXTSUP ramping positive	4.4	4.6	4.8	V
V_EXTSUP-Hys	EXTSUP switch-over hysteresis		150		250	mV
I_VREG-Limit	Current limit on VREG	V_EXTSUP = 0 V, normal mode as well as LPM	100		400	mA
I_{VREG_EXTSUP-Limit}	Current limit on VREG when using EXTSUP	I_VREG = 0 mA to 100 mA, V_EXTSUP = 8.5 V, SYNC = High	125		400	mA
SOFT START
I_SSx	Soft-start source current	V_SSA and V_SSB = 0 V	0.75	1	1.25	µA
OSCILLATOR (RT)
V_RT	Oscillator reference voltage			1.2		V
POWER GOOD / DELAY
PG_pullup	Pullup for A and B to Sx2			50		kΩ
PG_th1	Power-good threshold	FBx falling	–5%	–7%	–9%
PG_hys	Hysteresis			2%
PG_drop	Voltage drop	I_PGA = 5 mA			450	mV
		I_PGA = 1 mA			100	mV
PG_leak	Power-good leakage	V_Sx2 = V_PGx = 13 V			1	µA
t_deglitch	Power-good deglitch time		2		16	µs
t_delay	Reset delay	External capacitor = 1 nF V_BuckX < PG_th1		1		ms
t_{delay_fix}	Fixed reset delay	No external capacitor, pin open		20	50	µs
I_OH	Activate current source (current to charge external capacitor)		30	40	50	µA
I_IL	Activate current sink (current to discharge external capacitor)		30	40	50	µA
OVERTEMPERATURE PROTECTION
T_shutdown	Junction-temperature shutdown threshold		150	165		°C
T_hys	Junction-temperature hysteresis			15		°C

(1) Quiescent current specification is non-switching current consumption without including the current in the external-feedback resistor divider.

(2) The exit threshold specification is to be always higher than the entry threshold.

(3) If V_BAT and V_REG remain adequate, the buck can continue to operate if V_IN is > 3.8 V.

6.6 Typical Characteristics

TPS43335-Q1 TPS43336-Q1 g_efficiency_across_output_currents_buck_lvsa82.gif

V_IN = 12 V	L= 4.7 µH	f_SW = 400 kHz
V_OUT = 5 V	R_SENSE = 10 Ω

Figure 1. Efficiency Across Output Currents (Bucks)

TPS43335-Q1 TPS43336-Q1 g_buck_load_step_forced_cont_lvsa82.gif

V_IN = 12 V	L= 4.7 µH	f_SW = 400 kHz
V_OUT = 5 V	R_SENSE = 10 Ω

Figure 3. Buck Load Step: Forced Continuous Mode
(0 to 4 A at 2.5 A/µs)

TPS43335-Q1 TPS43336-Q1 g_buck_load_step_low_power_entry_lvsa82.gif

V_IN = 12 V	L= 4.7 µH	f_SW = 400 kHz
V_OUT = 5 V	R_SENSE = 10 Ω

Figure 5. Buck Load Step: Low-Power-Mode Entry
(4 A to 90 mA at 2.5 A/µs)

TPS43335-Q1 TPS43336-Q1 g_efficiency_across_output_currents_boost_lvsa82.gif

V_IN (BOOST OUTPUT) = 10 V		f_SW = 200 kHz
L = 1 µH	R_SENSE = 7.5 mΩ

Figure 7. Efficiency Across Output Currents (Boost)

TPS43335-Q1 TPS43336-Q1 g_cranking_pulse_boost_response_12v_3v_lvsa82.gif

V_IN (BOOST OUTPUT) = 10 V		f_SW = 200 kHz
BuckA = 5 V AT 1.5 A	C_IN = 440 µF	L = 1 µH
BuckB = 3.3 V AT 3.5 A	C_OUT = 660 µF	R_SENSE = 7.5 mΩ

Figure 9. Cranking Pulse Boost Response
(12 V to 3 V in 1 ms at Buck Outputs 7.5 W / 11.5 W)

TPS43335-Q1 TPS43336-Q1 g_inductor_currents_boost_lvsa82.gif

V_BAT (BOOST INPUT) = 5 V		f_SW = 200 kHz
V_IN (BOOST OUTPUT) = 10 V		L = 1 µH
C_IN = 440 µF	C_OUT = 660 µF	R_SENSE = 7.5 mΩ

Figure 11. Inductor Currents (Boost)

TPS43335-Q1 TPS43336-Q1 g_current_limit_vs_compx_voltage_buck_lvsa82.gif

Figure 13. Buckx Peak Current Limit vs Compx Voltage

TPS43335-Q1 TPS43336-Q1 g_foldback_current_limit_buck_lvsa82.gif

Figure 15. Foldback Current Limit (Buck)

TPS43335-Q1 TPS43336-Q1 g_current_limit_duty_cycle_buck_lvsa82.gif

Figure 17. Current Limit vs Duty Cycle (Buck)

TPS43335-Q1 TPS43336-Q1 g_inductor_current_buck_lvsa82.gif

V_IN = 12 V	L= 4.7 µH	f_SW = 400 kHz
V_OUT = 5 V	R_SENSE = 10 Ω

Figure 2. Inductor Currents (Buck)

TPS43335-Q1 TPS43336-Q1 g_soft_start_outputs_buck_lvsa82.gif

Figure 4. Soft-Start Outputs (Buck)

TPS43335-Q1 TPS43336-Q1 g_buck_load_step_low_power_exit_lvsa82.gif

V_IN = 12 V	L= 4.7 µH	f_SW = 400 kHz
V_OUT = 5 V	R_SENSE = 10 Ω

Figure 6. Buck Load Step: Low-Power-Mode Exit
(90 mA to 4 A at 2.5 A/µs)

TPS43335-Q1 TPS43336-Q1 C001_SLVSA82.gif

V_BAT (BOOST INPUT) = 5 V		f_SW = 200 kHz
V_IN (BOOST OUTPUT) = 10 V		L = 680 nH
C_IN = 440 µF	C_OUT = 660 µF	R_SENSE = 10 mΩ

Figure 8. Load Step Response (Boost)
(0 to 5 A at 10 A/µs)

TPS43335-Q1 TPS43336-Q1 g_cranking_pulse_boost_response_12v_4v_lvsa82.gif

V_IN (BOOST OUTPUT) = 10 V		f_SW = 200 kHz
BuckA = 5 V AT 1.5 A	C_IN = 440 µF	L = 1 µH
BuckB = 3.3 V AT 3.5 A	C_OUT = 660 µF	R_SENSE = 7.5 mΩ

Figure 10. Cranking Pulse Boost Response
(12 V to 4 V in 1 ms at Boost Direct Output 25 W)

TPS43335-Q1 TPS43336-Q1 g_no_load_iq_over_temp_misc_lvsa82.gif

Figure 12. No-Load Quiescent Current vs Temperature

TPS43335-Q1 TPS43336-Q1 g_current_sense_pins_input_current_buck_lvsa82.gif

Figure 14. Current-Sense Pins Input Current (Buck)

TPS43335-Q1 TPS43336-Q1 g_regulated_fbx_voltage_temp_buck_lvsa82.gif

Figure 16. Regulated Fbx Voltage vs Temperature (Buck)