TDA4700 Datasheet, PDF (11/21 Pages) Siemens Semiconductor Group – Control IC for Single-Ended and Push-Pull Switched-Mode Power Supplies SMPS

TDA 4700
TDA 4718
Absolute Maximum Ratings
Parameter
Symbol
Limit Values
min. max.
Supply voltage
Voltage at Q1, Q2
Current at Q1, Q2
Symmetry 1, 2 TDA 4700; A
Sync output
Sync input
Input C_filter
Input R_T
Input C_T
Input R_R
Input C_R
Input comparator
K2, K5, K6, K7
Output K5
Input op amp TDA 4700; A
Output op amp TDA 4700; A
V_S
V_Q
I_Q
V_SYM
V_{SYNC Q}
I_{SYNC Q}
V_{SYNC I}
V_{I Cf}
V_{I RT}
V_{I CT}
V_{I RR}
I_{I CR}
V_{I K}
V_{Q K5}
V_{I Op Amp}
V_{Q Op Amp}
– 0.3
– 0.3
– 0.3
– 0.3
0
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 10
– 0.3
– 0.3
– 0.3
– 0.3
33
33
70
33
7
10
33
7
7
7
7
10
33
33
33
V_S – 1
max. 7
Reference voltage
Input C_{soft start}
Junction temperature
Storage temperature
Thermal resistance
system - air TDA 4700; A
TDA 4718
TDA 4718 A
V_REF
V_{I soft start}
T_j
T_stg
R_{th SA}
R_{th SA}
R_{th SA}
– 0.3
– 0.3
– 55
V_REF
7
150
125
65
70
60
Unit Test
Condition
V
V
Q1, Q2 high
mA Q1, Q2 low
V
V
SYNC Q high
mA SYNC Q low
V
V
V
V
V
mA
V
V
V
V
V
V
V
°C
°C
K/W
K/W
K/W
Semiconductor Group
11