Philips DVD763SA/021, DVD763SA/001 IC Data, Diagram Power Supply TY72011P2 Block Diagram item

EN 76 9. DVD763SA Circuit Descriptions and List of Abbreviations

9.7IC Data

In this paragraph, the internal block diagrams and pinning are given of ICs that are drawn as 'black box' in the electrical diagrams (with the exception of 'memory' and 'logic' ICs).

9.7.1Diagram Power Supply

TY72011P2 Block Diagram (item 7130)

						Vcc pin13
			Startup
HV	1	Over Voltage			UVLOh = 15V		14
		Protection (Vcc > 41V?)			UVLOl = 7.2V
			Internal Vcc
NC	2	Last pulse of	Internal regulator				13	Vcc
		demag after 4µs
Demag	3	DEMAG ?			Internal Clamp		12	DRV
		Rf
		Verr max = 3V
		Verr min = 10mV		Clock
FB		Ri	OVP	R Flip-Flop Q				Isense
	4						11
		1/3
		2.5V		D	Driver
Ct			Current comparator					Gnd
	5						10
		Over Current
		Protection (OCP)	250mV - 1V max setpoint		200ns L.E.B
		V(-) < 1.5V				Vcc pin8
OVP								NC
	6		1V				9
			250mV clamp				4x10V zener
				VCO Feedback
			Verr	Toff = f (Verr)	OVP
NC	7	More than 128ms?		Max Toff = f (Ct)		500	8	NC
		--> protection circuitry				60mV
			20k
			Figure 9-13

TY72011P2 Pinning (item 7130)

HV 1

nc 2

Demag 3

FB 4

Ct 5 OVP 6

nc 7

14nc

13Vcc

12Drive

11Isense

10GND

9nc

8nc

PIN CONNECTIONS

Figure 9-14