MC33470 Datasheet, PDF (2/16 Pages) ON Semiconductor – SYNCHRONOUS RECTIFICATION DC/DC CONVERTER PROGRAMMABLE INTEGRATED CONTROLLER

MC33470
18 _VID0
17 _VID1
Voltage
Identification ₁₆
Code
VID2
Input _{15 VID3}
14 _VID4
Simplified Block Diagram
OT 11
Outen 19
VCC 5
Over
Temp
Digitally Programmed
Reference
Vref
VCC
Oscillator
VCC
9
10 µA
2.5 V
1.5 V
PWM
Comparator
SS
+
0.96 Vref
90 µA
Over Current
Detect
190 µA
En
SQ
RQ
PWM
Latch
Delay
6
Sense
13
Power
Good
Vref
800 µ
+
1.04 Vref
20 µA
OTA Error Amp
+
1.04 Vref
+
0.93 Vref
1.14 Vref
Delay
R
Q
S
7
Imax
2
PVCC
20
G1
8
Ifb
1
G2
3
PGnd
14
Fault
AGnd 4
Compensation 10
MAXIMUM RATINGS (TC = 25°C, unless otherwise noted.)
Rating
Symbol
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Power Supply Voltage}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Output Driver Supply Voltage (Operating)}
VCC
PVCC
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Imax, Ifb Inputs
Vin
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ All Other Inputs and Digital
Vin
(OT, Fault, Power Good) Outputs
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Power Dissipation and Thermal Characteristics}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Maximum Power Dissipation}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Case 751D DW Suffix (TA = 70°C)
Thermal Resistance Junction–to–Ambient
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Thermal Resistance Junction–to–Case}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Operating Junction Temperature}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Operating Ambient Temperature (Notes 1 and 2)}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Storage Temperature Range}
PD
R_θJA
R_θJC
TJ
TA
Tstg
Value
Unit
7.0
V
18
V
–0.3 to 18
V
–0.3 to
V
VCC + 0.3
0.60
91
60
125
0 to +70
–55 to +125
W
°C/W
°C/W
°C
°C
°C
NOTE: ESD data available upon request
2
MOTOROLA ANALOG IC DEVICE DATA