tda4855 NXP Semiconductors, tda4855 Datasheet - Page 20

• Manufacturer Part Number: tda4855
• Description: Autosync Deflection Controller Asdc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1996 Jul 18
B+ control section (see Figs 12 and 13)
T
V
I
V
V
V
I
g
G
C
V
V
V
I
O
I
I
V
t
t
BSENS
V
I
V
C
Internal reference, supply voltage and protection
V
I
PSRR
BIN(max)
BOP(max)
BSENS
BDRV(max)
leakage(BDRV)
off(min)
d(BDRV)
DISC(BSENS)
VCC
RANSCONDUCTANCE AMPLIFIER
BIN
ref(int)
BOP(min)
BOP(max)
OLTAGE COMPARATOR
BSENS
BOP
sat(BDRV)
STOP(BSENS)
RESTART(BSENS)
STAB(VCC)
Autosync Deflection Controller (ASDC)
BOP
BSENS
open
PEN COLLECTOR OUTPUT STAGE
SYMBOL
DISCHARGE CIRCUIT
input voltage
maximum input current
reference voltage at internal
non-inverting input of OTA
minimum output voltage
maximum output voltage
maximum output current
transconductance of OTA
open-loop gain
minimum value of capacitor at
BOP (pin 3)
voltage range of positive
comparator input
voltage range of negative
comparator input
maximum leakage current
maximum output current
output leakage current
saturation voltage
minimum off-time
delay between BDRV pulse
and HDRV pulse
discharge stop level
discharge current
threshold voltage for restart
minimum value of capacitor at
BSENS (pin 4)
external supply voltage for
complete stabilization of all
internal references
supply current
power supply rejection ratio of
internal supply voltage
[BSENS (
PARAMETER
[BIN (
PIN
[BDRV (
4)]
PIN
5)
PIN
AND
6)]
BOP (
I
note 17
note 18
discharge disabled
V
I
measured at
V
capacitive load;
I
V
fault condition
f = 1 kHz
BOP
BDRV
BSENS
BDRV
HDRV
BSENS
PIN
20
CONDITIONS
3)]
, V
1 mA
= 16 V
= 0.5 mA
20 mA
BDRV
2.5 V
= 3 V
0
2.37
5
30
4.7
0
0
20
0.85
4.5
1.2
2
9.2
50
MIN.
2.5
0.4
5.3
50
86
250
500
1.0
6
1.3
49
500
TYP.
Preliminary specification
5.25
2.58
5.6
70
5
5
3
300
1.15
7.5
1.4
16
MAX.
1
2
TDA4855
V
V
V
V
mS
dB
nF
V
V
mA
mV
ns
ns
V
mA
V
nF
V
mA
dB
A
A
A
A
UNIT