TDA8380A Datasheet, PDF (14/20 Pages) NXP Semiconductors – Control circuit for switched mode power supplies

Philips Semiconductors
Control circuit for switched mode power supplies
Product specification
TDA8380A
CHARACTERISTICS
V_CC = 14 V; T_amb = 25 °C; reference resistor = 5 kΩ unless otherwise specified
PARAMETER
CONDITIONS
SYMBOL
MIN.
Supply
Supply voltage
Supply initialization level
High voltage protection
Internal fixed minimum
protection level
Hysteresis
Supply current
operational
before initialization
Reference current (pin 4)
Trigger level V_CCmin setting
Clamp voltage
note 1
at 20 mA
V_CC
V₅
V₅
V₅
dV_CC
I_CC
I_CC
I₄
V₅
9
15
21
7.9
−
−
−
I₆/5.7
3.6V₄
21.5
Reference (pin 6)
Reference voltage
Current range
Reference voltage over
I₆ range
Error amplifier
Error amplifier threshold
Input current
Sink current output
Source current output
Open loop gain
Unity gain bandwidth
Input DUTY current
High FB protection level
Temperature coefficient of
error amplifier threshold
TCG function (see Fig.8)
Transfer characteristics
Minimum duty factor
Plateau width
V_ref
I_ref
dV_ref
V_CC = 8.5 to 20 V V₇
I₇
at 1.2 V
I₈
at 5.5 V
I₈
A0
BW
note 1
I₉
V₇
dV₇/dT
dD/dV₇
D_min
V₇
2.4
200
−20
2.4
0
1
80
−
−
I₆/5.7
2.95
−
−
−
−
TYP.
−
17
23
8.4
50
−
100
I₆/6
3.8V₄
23.5
2.5
−
−
2.5
−
−
100
100
5
I₆/6
3.1
100
32
12
200
MAX.
20
18
25
8.9
−
15
150
I₆/6.4
4.2V₄
25.5
2.6
800
+ 20
2.6
5
−
130
−
−
I₆/6.3
3.25
−
−
−
−
UNIT
V
V
V
V
mV
mA
µA
mA
V
V
V
µA
mV
V
µA
mA
µA
dB
MHz
mA
V
10^−6/K
%/V
%
mV
November 1993
14