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ZHCSHY7A April 2018 – May 2018 UCC28742

PRODUCTION DATA.

封裝選項(xiàng)

機(jī)械數(shù)據(jù) (封裝 | 引腳)

DBV|6
- MPDS026Q

散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)

訂購(gòu)信息

zhcshy7a_oa

6.5 Electrical Characteristics

Over operating free-air temperature range, V_VDD = 25 V, V_FB = 0 V, V_VS = 4V, –40°C ≤ T_A ≤ 125°C, T_J = T_A (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
BIAS SUPPLY INPUT
I_RUN	Supply current, run	I_DRV = 0, run state	1.30	1.80	2.40	mA
I_WAIT	Supply current, wait	I_DRV = 0, V_VDD = 20 V, wait state	50	80	115	µA
I_START	Supply current, start	I_DRV = 0, V_VDD = 17 V, start state		1.50	2.75	µA
I_FAULT	Supply current, fault	I_DRV = 0, fault state	1.30	1.80	2.40	mA
UNDER-VOLTAGE LOCKOUT
V_VDD(on)	VDD turn-on threshold	V_VDD low to high	17.5	21.6	24.5	V
V_VDD(off)	VDD turn-off threshold	V_VDD high to low	7.25	7.80	8.30	V
VS INPUT
V_VSNC	Negative clamp level	I_VS = –300 µA	–304	–225	–164	mV
I_VSB	Input bias current	V_VS = 4 V	–0.25	0	0.25	µA
FB INPUT
I_FBMAX	Full-range input current	f_SW = f_SW(min)	16	23	30	µA
V_FBMAX	Input voltage at full-range	I_FB = 26 µA	0.70	0.90	1.10	V
R_FB	FB-input resistance	ΔI_FB = 6 to 26 µA	10	14	18	kΩ
CS INPUT
V_CST(max)	Max CS threshold voltage ⁽³⁾	I_FB = 0 µA	710	770	830	mV
V_CST(min)	Min CS threshold voltage ⁽³⁾	I_FB = 35 µA	164	190	216	mV
K_AM	AM control ratio	V_CST(max) / V_CST(min)	3.55	4.00	4.50	V/V
V_CCR	Constant-current regulating level		338	363	390	mV
K_LC	Line compensating current ratio, I_VSLS / (current out of CS pin)	I_VSLS = –300 µA	23	25	29	A/A
T_CSLEB	Leading-edge blanking time	DRV output duration, V_CS = 1 V	195	270	350	ns
DRV
I_DRS	DRV source current	V_DRV = 5 V, V_VDD = 9 V	24	30	36	mA
R_DRVLS	DRV low-side drive resistance	I_DRV = 10 mA		6.5	12	Ω
V_DRCL	DRV clamp voltage	V_VDD = 35 V	8.8	10.6	13	V
R_DRVSS	DRV pull-down in start state		135	175	250	kΩ
TIMING
f_SW(max)	Maximum switching frequency ⁽⁴⁾	I_FB = 0 µA	80	105	130	kHz
f_SW(min)	Minimum switching frequency	I_FB = 35 µA	140	200	255	Hz
t_ZTO	Zero-crossing timeout delay		1.45	2.45	3.30	µs
t_{OVL_TIME}	Delay time before shutdown	Demag_Duty = V_CCR/ V_CST(max)	85	120	160	ms
PROTECTION
V_OVP	Over-voltage threshold⁽¹⁾	At VS input, T_J = 25 °C	4.45	4.65	4.85	V
V_OCP	Over-current threshold⁽¹⁾	At CS input	1.41	1.50	1.59	V
I_VSL(run)	VS line-sense run current	Current out of VS pin – increasing	170	210	250	µA
I_VSL(stop)	VS line-sense stop current	Current out of VS pin – decreasing	60	75	90	µA
K_VSL	VS pin, line-sense current ratio, I_VSL(run) / I_VSL(stop)		2.50	2.80	3.05	A/A
T_J(stop)	Thermal shut-down temperature ⁽²⁾	Internal junction temperature		165		°C

(1) The OVP threshold at VS decrease with increasing temperature by 1 mV/℃. This compensation over temperature is included to reduce the variances in power supply over-voltage detection with respect to the external output rectifier.

(2) Ensured by design. Not tested in production.

(3) These threshold voltages represent average levels. This device automatically varies the current sense threshold to improve EMI performance.

(4) These frequency limits represent average levels. This device automatically varies the switching frequency to improve EMI performance.