ZHCSN24 数据表 | 德州仪器 TI.com.cn

ZHCSN24A August 2019 – May 2021 TPS53676

PRODUCTION DATA

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6.4.18 Faults and Converter Protection

VCC = 3.3 V, CSPIN = VIN_CSNIN = 12 V, T_J = -40 to 125 ℃ unless otherwise specified

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
PROTECTION
V_OVTRKA	Channel A Tracking OV Fault Threshold ( Offset with respect to output voltage target including VDROOP )	Programmable Range ⁽²⁾	32		448	mV
		Resolution		32		mV
		Accuracy (all settings)	-16		16	mV
V_OVTRKB	Channel B Tracking OV Fault Threshold ( Offset with respect to output voltage target including VDROOP )	Programmable Range ⁽²⁾	32		448	mV
		Resolution		32		mV
		Accuracy (all settings)	-20		20	mV
V_OVFIXA	Channel A Fixed OV Fault Threshold	Programmable Range ⁽²⁾	0.6		3.7	V
		Resolution		0.1		V
		Accuracy (V_OVFIX < 3.6 V)	-50		50	mV
		Accuracy (V_OVFIX ≥ 3.6 V)	-65		65	mV
V_OVFIXB	Channel B Fixed OV Fault Threshold	Programmable Range ⁽²⁾	0.6		3.7	V
		Resolution		0.1		V
		Accuracy (V_OVFIX < 3.6 V)	-50		50	mV
		Accuracy (V_OVFIX ≥ 3.6 V)	-65		65	mV
V_OVPB-A	Pre-biased OVP Channel A threshold ⁽¹⁾			3.7		V
V_OVPB-B	Pre-biased OVP Channel B threshold ⁽¹⁾			3.7		V
V_OVW-A	Channel A Tracking OV Warning Threshold (Offset with respect to output voltage target including VDROOP)	Programmable Range ⁽²⁾	16		448	mV
		Resolution		8		mV
		Accuracy (all settings)	-12		12	mV
V_OVW-B	Channel B Tracking OV Warning Threshold (Offset with respect to output voltage target including VDROOP)	Programmable Range ⁽²⁾	24		448	mV
		Resolution		8		mV
		Accuracy (all settings)	-23		23	mV
V_UVW-A	Channel A UV Warning Threshold ( Offset with respect to output voltage target including VDROOP )	Programmable Range ⁽²⁾	-16		-448	mV
		Resolution		8		mV
		Accuracy (all settings)	-11		11	mV
V_UVW-B	Channel B UV Warning Threshold ( Offset with respect to output voltage target including VDROOP )	Programmable Range ⁽²⁾	-8		-448	mV
		Resolution		8		mV
		Accuracy (all settings)	-22		22	mV
V_UVF-A	Channel A Tracking UV Fault Threshold ( Offset with respect to output voltage target including VDROOP )	Programmable Range ⁽²⁾	32		448	mV
		Resolution		32		mV
		Accuracy (all settings)	-16		16	mV
V_UVF-B	Channel B Tracking UV Fault Threshold ( Offset with respect to output voltage target including VDROOP )	Programmable Range ⁽²⁾	32		448	mV
		Resolution		32		mV
		Accuracy (all settings)	-21		21	mV
t_DLY(UVF)	Deglitch Time for Triggering UV Fault ⁽¹⁾	VOUT_UV_FAULT_RESPONSE[2:0] = x00b		4		µs
		VOUT_UV_FAULT_RESPONSE[2:0] = x01b		8		µs
		VOUT_UV_FAULT_RESPONSE[2:0] = x10b		12		µs
		VOUT_UV_FAULT_RESPONSE[2:0] = x11b		16		µs
I_OCP-A	Channel A Overcurrent Protection Threshold	Programmable Range ⁽²⁾	1		1023	A
		Resolution		1		A
		Accuracy (11 phase, I_OCP ≤ 135 A)	-7		7	A
		Accuracy (11 phase, I_OCP > 135 A)	-4		4	%
I_OCP-B	Channel B Overcurrent Protection Threshold	Programmable Range ⁽²⁾	1		1023	A
		Resolution		1		A
		Accuracy (4 phase, I_OCP ≤ 75 A)	-3		3	A
		Accuracy (4 phase, I_OCP > 75 A)	-3		3	%
I_OCW-A	Channel A Overcurrent Warning Threshold	Programmable Range ⁽²⁾	1		1023	A
		Resolution		1		A
		Accuracy (11 phase, I_OCW ≤ 135 A)	-7		7	A
		Accuracy (11 phase, I_OCW > 135 A)	-4		4	%
I_OCW-B	Channel B Overcurrent Warning Threshold	Programmable Range ⁽²⁾	1		1023	A
		Resolution		1		A
		Accuracy (4 phase, I_OCW ≤ 75 A)	-3		3	A
		Accuracy (4 phase, I_OCW > 75 A)	-3		3	%
T_OTF	Over-temperature Fault threshold	Programmable Range	90		160	°C
		Resolution		1		°C
		Accuracy (all settings)	-3		3	°C
T_OTW	Over-temperature Warning threshold⁽¹⁾	Programmable Range	90		160	°C
		Resolution		10		°C
		Accuracy (all settings)	-3		3	°C
V_IOVF	Input over-voltage fault threshold	Programmable Range	4		18	V
		Resolution		1		V
		Accuracy	-2		2	%
V_IOVW	Input over-voltage warning threshold	Programmable Range	4		18	V
		Resolution		1		V
		Accuracy	-2		2	%
V_IUVW	Input under-voltage warning threshold	Programmable Range	4.25		11.5	V
		Resolution		0.25		V
		Accuracy (all settings)	-0.25		0.25	V
V_IUVF	Input under-voltage fault threshold	Programmable Range	4.0		11.25
		Resolution		0.25
		Accuracy (all settings)	-0.25		0.25	V
t_IUVF	Input Under-Voltage Fault Response Time ⁽¹⁾ Time from VIN < V_IUVF to converter shutdown	VIN_UV_FAULT_RESPONSE = 80h Shutdown immediately, do not restart			300	µs
I_IOCF	Input over-current fault threshold	Programmable Range	4		128	A
		Resolution		4		A
		Accuracy (all settings)	-3.5		3.5	A
I_IOCW	Input over-current warning threshold	Programmable Range	4		128	A
		Resolution		4		A
		Accuracy (all settings)	-4		4	A
t_HICCUP	Hiccup Wait Time ⁽¹⁾ Applies only to HICCUP fault responses	USER_DATA_11[15:14] = 00b		5		ms
		USER_DATA_11[15:14] = 01b		10		ms
		USER_DATA_11[15:14] = 10b		25		ms
		USER_DATA_11[15:14] = 11b		50		ms
V_PSFLT	ATSEN/BTSEN pin voltage causing Power stage fault (TAO HIGH)			2.6		V
	ATSEN/BTSEN pin voltage clearing Power stage fault (TAO HIGH)			2.4		V
	ATSEN/BTSEN pin voltage hysteresis for Power stage fault (TAO HIGH)			0.2		V

(1) Specified by Design.

(2) Settings are programmed through PMBus commands as described in the Programming section of this document. The device internally maps programmed settings to hardware supported values.

封装选项

机械数据 (封装 | 引脚)

散热焊盘机械数据 (封装 | 引脚)

订购信息

6.4.18 Faults and Converter Protection