米6体育平台手机版

ZHCSHH6B January 2018 – JANUARY 2019 TPSM846C24

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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6.5 Electrical Characteristics

Over –40°C to 105°C free-air temperature range, V_IN = 12 V, V_OUT = 1.2 V, I_OUT = I_OUT(max), ƒ_SW = 500 kHz, C_IN1= 4 × 22 µF, 25 V, 1210 ceramic; C_IN2= 2 × 330 µF, 25 V, electrolytic bulk; C_OUT1= 4 × 47 µF, 6.3 V, 1210 ceramic; C_OUT2= 2 × 470 µF, 6.3 V, polymer bulk (unless otherwise noted)

PARAMETER		TEST CONDITIONS		MIN	TYP	MAX	UNIT
INPUT VOLTAGE (V_IN)
V_IN	Input voltage	Over I_OUT range		4.5		15	V
V_{IN_UVLO}	V_IN undervoltage lock out	V_IN rising			4.5		V
V_{IN_UVLO}	V_IN undervoltage lock out	V_IN falling			4		V
I_VIN	Input operating current	EN = 0 V			7.7	12	mA
OUTPUT VOLTAGE (V_OUT)
V_OUT	V_OUT adjustable range⁽²⁾	Over I_OUT range		0.5		2	V
	Setpoint voltage tolerance	R_SET = Not loaded, T_J = 25°C, I_OUT = 0 A		–1%		1%
	Setpoint voltage tolerance	R_SET = 10 kΩ, 1%, T_J = 25°C, I_OUT = 0 A⁽¹⁾		–1.5%		1.5%
	Temperature variation	0°C < T_J< 85°C, I_OUT = 0 A⁽²⁾		–0.5%		0.5%
	Temperature variation	–40°C < T_J< 125°C, I_OUT = 0 A⁽²⁾		–1%		1%
	Line regulation	4.5 V < V_IN < 15 V, I_OUT = 0 A			±0.05%
	Load regulation	Over I_OUT range, using remote sense			±0.2%
	Output voltage ripple	20-MHz bandwidth			13		mV
OUTPUT CURRENT
I_OUT	Output current	Natural Convection. See SOA graph for derating over temperature.		0		35	A
I_OUT	Overcurrent threshold				42		A
I_OC(acc)	Overcurrent accuracy			–15%		15%
I_SH(acc)	Output current share accuracy	(I_OUT1 – I_OUT2) ÷ I_TOTAL, I_OUT ≥ 20 A per module⁽²⁾		–15%		15%
I_SH(acc)	Output current share accuracy	(I_OUTx – I_TOTAL) ÷ 2, I_OUT < 20 A per module⁽²⁾		–3		3	A
SOFT START / STOP
t_SStart	Internal soft-start time				3		ms
t_SStop	Internal soft-stop time				3		ms
ENABLE (EN)
V_EN	Enable threshold voltage	Enable high voltage		1.3			V
	Enable threshold voltage	Enable low voltage				0.8	V
	Hysteresis on Enable				170		mV
POWER GOOD (PGOOD) AND OVERVOLTAGE / UNDERVOLTAGE THRESHOLD⁽³⁾
PGOOD	PGOOD output low voltage	V_IN = 4 V, V_OUT = 0 V, I_PGOOD = 5 mA				0.3	V
	PGOOD output low voltage	V_IN = 0 V, I_PGOOD = 80 µA				0.8	V
	PGOOD thresholds	V_OUT rising	Good		95		%V_O
		V_OUT rising	Fault		112		%V_O
		V_OUT falling	Good		105		%V_O
		V_OUT falling	Fault		88		%V_O
PERFORMANCE
Efficiency⁽¹⁾		V_IN = 12 V, I_OUT = 25 A	V_OUT = 0.8 V		83%
			V_OUT = 1.2 V		87%
			V_OUT = 1.8 V		90%
		V_IN = 5 V, I_OUT = 25 A	V_OUT = 0.8 V		84%
			V_OUT = 1.2 V		88%
			V_OUT = 1.8 V		91%
Transient response⁽¹⁾		10 A / µs load step from 25% to 75% of I_OUT(max), C_OUT = 1000 µF, RC = 1 kΩ, CC = 1 nF	V_OUT over/undershoot		60		mV
			Recovery time		60		µs
		10 A / µs load step from 25% to 75% of I_OUT(max), C_OUT = 2000 µF, RC = 665 Ω, CC = 1.5 nF	V_OUT over/undershoot		40		mV
			Recovery time		60		µs
		10 A / µs load step from 25% to 75% of I_OUT(max), C_OUT = 4000 µF, RC = 499 Ω, CC = 2.2 nF	V_OUT over/undershoot		27		mV
			Recovery time		60		µs
INTERNAL LDO (BP6, BP3)⁽³⁾
V_BP6	BP6 regulator output voltage	7.5V ≤ V_IN ≤ 15 V, switching		5.85	6.4	6.95	V
V_BP6_(DO)	Dropout voltage	(V_VIN – V_BP6), V_IN = 4.5 V, switching				400	mV
V_BP3	BP3 regulator output voltage	V_IN ≥ 4.5 V		3	3.2	3.4	V
THERMAL SHUTDOWN
T_SD	Junction thermal shutdown temperature				145	160	°C
T_HYST	Thermal shutdown hysteresis				25		°C
CAPACITANCE
C_IN	External input capacitance	ceramic		88			µF
C_IN	External input capacitance	non-ceramic			660		µF
C_OUT	External output capacitance	ceramic⁽⁴⁾		188			µF
		non-ceramic⁽⁴⁾		940		4000⁽⁵⁾	µF
		non-ceramic⁽⁴⁾	ESR ⁽⁶⁾			5	mΩ

(1) The stated limit of the set-point tolerance includes the tolernace of both the internal voltage reference and the internal adjustment resistor. The overall output voltage tolerance is affected by the tolerance of the external R_SET resistor.

(2) Specified by design.

(3) Functionality Verified. Limits specified at internal IC test.

(4) The minimum required output capacitance consists of 4 × 47-µF ceramic capacitors and 2 × 470-µF, 10-mΩ ESR (5 mΩ equivalent).

(5) The proper frequency compensation network values are determined by the total amount of output capacitance (see Setting the Compensation Network).

(6) The maximum ESR refers to the combined equivalent ESR of all non-ceramic output capacitors. For example, two 10-mΩ ESR capacitors have a combined equivalent ESR of 5 mΩ.