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MX453 Datasheet



T= 85 0C
T= 25 0C -
T= 25 0C -
T= -40 0C

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MX453 Price

DC ELECTRICAL CHARACTERISTICS
(At TA = 0 N 700C, VDD = VDDa = 3.3 + 0.3V, Vss = Vssa = OV , unless otherwise noted)
Symbol Parameter TestCondition Speed	Min	Max	Unit
lccicl) Operating Current One Bank active, CAS latency = 3 -6(42S16400)		95	mA
Burst Length=l -7(42S16400)		85	mA
tRC = tRC (min.)
tCLK = tCLK (miri.)
Icc2P Precharge Standby Current CKE < VIL (MAX) tCK = 15 ns -6		2	mA
(ln Power-Down Mode) -7		2	mA
lcc2PS CKE < VIL (MAX) CLK < VIL (MAX) -6		1	mA
7		1	mA
lcc2Nc2) Precharge Standby Current CS > Vcc -0.2V tCK = 15 ns -6		20	mA
(ln Non Power-Down Mode) CKE > VIH (MIN) -7		20	mA
lcc2NS CS > Vcc -0.2V CKE < VIL (MAX) -6		1 5	mA
CKE > VIH (MIN) All input signals are stable. -7		1 5	mA
Icc3P Active Standby Current CKE < VIL (MAX) tCK = 10 ris -6		7	mA
(ln Power-Down Mode) -7		7	mA
lcc3PS CKE < VIL (MAX) CLK < VIL (MAX) -6		5	mA
7		5	mA
lcc3Nc2) Active Standby Current CS > Vcc -0.2V tCK = 15 ns -6		30	mA
(ln Non Power-Down Mode) CKE > VIH (MIN) -7		30	mA
lcc3NS CS > Vcc -0.2V CKE < VIL (MAX) -6		25	mA
CKE > VIH (MIN) All input signals are stable. -7		25	mA
lcc4 0perating Current All Banks active CAS latency = 3 -6(42S16400)		1 30	mA
(ln Burst Mode) Burst Length=l -7(42S16400)		1 00	mA
tCK = tCK (MIN)		1 00	mA
lccs Auto-Refresh Current tRC = tRC (MIN) -6		1 50	mA
tCLK = tCLK (MIN) -7		1 30	mA
lcc6c3.4) Self-Refresh Current CKE < 0.2V -6		1	mA
7		1	mA
IIL Input Leakage Current OV < VIN < VDD (MAX)	-5	5	IJA
(Inputs) Pins not under test = OV	-5	5	IJA
IOL Output Leakage Current Output is disabled DQ# in H - Z.,	-5	5	pA
(I/O pins) OV < VOUT < VDD (MAX)	-5	5	pA
VOH High Level Output Voltage IOUT = -2 mA	2.4		V
VOL Low Level Output Voltage IOUT = +2 mA		0.4	V

MX453 on stock

Parameter	Symbol	Characteristics	Condition
Operating Supply Voltage	Vcc	4.755.25 V
Peak Emission Wavelength	p	TYP 660 nm
Data Rate	T	MAX 8 Mbps
Optical Output Coupling with Fiber	Pc	MIN -21 dBm
Current Consumption	lcc	MAX 10.0 mA
Input High Level	VIH	MIN 2.0 V
Input Low Level	VIL	MAX 0.8 V
Propagation Delay Time ( H -> L )	tpHL	MAX 100 ns
Propagation Delay Time ( L -> H )	tpLH	MAX 100 ns
Pulse Width Distortion	Atw	MAX 10 ns
Jitter	tj	MAX 15 ns

Pin No.	Symbol	unction	Description
1	GND	Ground	Ground
2	FB	Feedback	The signal from external compensation circuit is feed into this pin. The PW M duty cycle is determined by this FB pin and current sense signal from Pin 6.
3	VIN	Start-Up	This pin is pulled high to the rectified line input through a resistor for start-up. Since the start-up current requirement for SG6841 is very small, a large start-up resistance can be used to minimize power loss. Under normal operation, this pin is also used to detect line voltage to compensate for constant output power limit for universal AC input.
4	Ri	Reference Setting	A resistor from Rl pin to ground will generate a constant current source forSG6841. This current is used to charge an internal capacitor and hence the switching frequency are determined. Increasing the resistance will decrease the current source and reduce the switching frequency. A 26kQ resistor Ri creates a 50uA constant current li and generates 65kHz switching frequency.
5	RT	Temperature Protection	For over-temperature protection. An external NTC thermistor is connected from this pin to ground. The impedance of the NTC will decrease under high temperature. Once the voltage on RT pin drops below a fixed limit, the PWM output will be disabled.
6	SENSE	Current Sense	Current sense. The sensed voltage is used for current mode control and pulse-by-pulse current limiting. If a short circuit failure happens on current sense resistor, the SG6841 will shut off after a continuous low voltage detection on SENSE pin.
7	VDD	Power supply	Power Supply.
8	GATE	Driver Output	The totem-pole output driver for the power MOSFET. A soft driving waveform is implemented to improve EMI.

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