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ZHCSJU9E January 2007 – June 2019 TPS40077

PRODUCTION DATA.

封裝選項

機械數(shù)據(jù) (封裝 | 引腳)

PWP|16
- MPDS371C

散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)

PWP|16
- PPTD288A

訂購信息

6.4 Electrical Characteristics

T_A = –40°C to 85°C, V_IN = 12 V_dc, R_T = 90.9 kΩ, I_KFF = 300 μA, f_SW = 500 kHz, and all parameters at zero power dissipation (unless otherwise noted).

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
V_VDD	Input voltage range, VIN		4.5		28	V
I_VDD	Quiescent current	Output drivers not switching		2.5	3.5	mA
V_LVBP	Output voltage	T_A = T_J = 25°C	3.9	4.2	4.5	V
OSCILLATOR/RAMP GENERATOR
f_OSC	Accuracy		450	500	550	kHz
V_RAMP	PWM ramp voltage⁽¹⁾	V_PEAK – V_VAL		2		V
V_RT	RT voltage		2.23	2.4	2.58	V
t_ON	Minimum output pulse time⁽¹⁾	C_HDRV = 0 nF			150	ns
	Maximum duty cycle	V_FB = 0 V, 100 kHz ≤ f_SW ≤ 500 kHz	84%		93%
	Maximum duty cycle	V_FB = 0 V, f_SW = 1 MHz	76%		93%
V_KFF	Feed-forward voltage		0.35	0.4	0.45	V
I_KFF	Feed-forward current operating range⁽¹⁾		20		1100	μA
SOFT START
I_SS	Charge current		7	12	17	μA
t_DSCH	Discharge time	C_SS = 3.9 nF	25		75	μs
t_SS	Soft-start time	C_SS = 3.9 nF, V_SS rising from 0.7 V to 1.6 V	210	290	500	μs
V_SSSD	Turnon threshold		310	365	420	mV
V_SSSD	Shutdown threshold		225	275	325	mV
V_SSSDH	Shutdown threshold hysteresis		35		150	mV
V_DBP	Output voltage	V_DD > 10 V	7	8	9	V
V_DBP	Output voltage	V_DD = 4.5 V, I_OUT = 25 mA	4	4.3		V
ERROR AMPLIFIER
V_FB	Feedback regulation voltage total variation	T_J = 25°C	0.698	0.7	0.704	V
		0°C ≤ T_J ≤ 85°C	0.69	0.7	0.707
		–40°C ≤ T_J ≤ 85°C	0.69	0.7	0.715
V_SS	Soft-start offset from VSS⁽¹⁾	Offset from V_SS to error amplifier		1		V
G_BW	Gain bandwidth⁽¹⁾		5	10		MHz
A_VOL	Open-loop gain		50			dB
I_SRC	Output source current		2.5	4.5		mA
I_SINK	Output sink current		2.5	6		mA
I_BIAS	Input bias current	V_FB = 0.7 V	–250		0	nA
SHORT-CIRCUIT CURRENT PROTECTION
I_ILIM	Current sink into current limit		80	105	125	μA
V_ILIM(ofst)	Current limit offset voltage (V_SW – V_ILIM)	V_ILIM = 11.5 V, V_VDD = 12 V	–75	–50	–30	mV
t_HSC	Minimum HDRV pulse duration	During short circuit		135	225	ns
	Propagation delay to output⁽¹⁾			50		ns
t_BLANK	Blanking time⁽¹⁾			50		ns
t_OFF	Off time during a fault (SS cycle times)			7		Cycles
V_SW	Switching level to end precondition (V_VDD – V_SW)⁽¹⁾			2		V
t_PC	Precondition time⁽¹⁾				100	ns
V_ILIM	Current limit precondition voltage threshold⁽¹⁾			6.8		V
OUTPUT DRIVERS
t_HFALL	High-side driver fall time (HDRV – SW)⁽¹⁾	C_HDRV = 2200 pF		36		ns
t_HRISE	High-side driver rise time (HDRV – SW)⁽¹⁾	C_HDRV = 2200 pF		48		ns
t_HFALL	High-side driver fall time (HDRV – SW)⁽¹⁾	C_HDRV = 2200 pF, V_VDD= 4.5 V, 0.2 V ≤ V_SS≤ 4 V		72		ns
t_HRISE	High-side driver rise time (HDRV – SW)⁽¹⁾	C_HDRV = 2200 pF, V_VDD= 4.5 V, 0.2 V ≤ V_SS≤ 4 V		96		ns
t_LFALL	Low-side driver fall time⁽¹⁾	C_LDRV = 2200 pF		24		ns
t_LRISE	Low-side driver rise time⁽¹⁾	C_LDRV = 2200 pF		48		ns
t_LFALL	Low-side driver fall time⁽¹⁾	C_LDRV = 2200 pF, V_VDD = 4.5 V, 0.2 V ≤ V_SS ≤ 4 V		48		ns
t_LRISE	Low-side driver rise time⁽¹⁾	C_LDRV = 2200 pF, V_VDD = 4.5 V, 0.2 V ≤ V_SS ≤ 4 V		96		ns
V_OH	High-level output voltage, HDRV (V_BOOST– V_HDRV)	I_HDRV= –0.01 A		0.7	1	V
V_OH	High-level output voltage, HDRV (V_BOOST– V_HDRV)	I_HDRV = –0.1 A		0.95	1.3	V
V_OL	Low-level output voltage, HDRV (V_HDRV – V_SW)	I_HDRV= 0.01A		0.06	0.1	V
V_OL	Low-level output voltage, HDRV (V_HDRV – V_SW)	I_HDRV= 0.1 A		0.65	1	V
V_OH	High-level output voltage, LDRV (V_DBP – V_LDRV)	I_LDRV= –0.01A		0.65	1	V
V_OH	High-level output voltage, LDRV (V_DBP – V_LDRV)	I_LDRV = –0.1 A		0.875	1.2	V
V_OL	Low-level output voltage, LDRV	I_LDRV = 0.01 A		0.03	0.05	V
V_OL	Low-level output voltage, LDRV	I_LDRV = 0.1 A		0.3	0.5	V
V_BOOST	Output voltage	V_DD= 12 V	15.2	17		V
UVLO
V_UVLO	Programmable UVLO threshold voltage	R_KFF = 90.9 kΩ, turn-on, V_VDD rising	6.2	7.2	8.2	V
	Programmable UVLO hysteresis	R_KFF = 90.9 kΩ	1.1	1.55	2	V
	Fixed UVLO threshold voltage	Turn-on, V_VDD rising	4.15	4.3	4.45	V
	Fixed UVLO hysteresis		275	365		mV
POWER GOOD
V_PG	Power-good voltage	I_PG = 1 mA		370	500	mV
V_OH	High-level output voltage, FB			770		mV
V_OL	Low-level output voltage, FB			630		mV
THERMAL SHUTDOWN
	Shutdown temperature threshold⁽¹⁾			165		°C
	Hysteresis⁽¹⁾			15		°C

(1) Ensured by design. Not production tested.