ADT7350
Functional Block Diagram
VIN
5
EN
4
Shutdown
Current
sense
-
RS
+
Internal
Regulator
Regulator
1
6
BST
Voltage
Reference
Σ
OSC
Driver
Current
Limit
Control
LOGIC
ZFB
SW
+
+
-
-
FB
3
Error
Amp
Comparator
2
GND
Absolute Maximum Ratings (Note1)
Parameter
Power supply voltage
SW pin voltage
Symbol
Min.
Typ.
Max.
26
Unit
VIN
VSW
VBST
-
-
-
V
V
-
-
27
BST pin voltage
-
-0.3
-
-
VSW + 6V
+6
V
All Other Pins
-
V
Max. power dissipation (Ta=25℃) (Note2)
Thermal resistance (Note3)
Storage temperature
PD
-
250
-
400
mW
℃/W
℃
-
-
ΘJA
TSTG
TJmax
-65
-
+150
+150
Junction temperature
-
℃
Note1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
Note2. derate 4.0mW/℃ above +25℃. This is recommended to operate under this power dissipation specification.
Note3. Measured on JESD51-7, 4-layer PCB
Operating Ratings
Parameter
Power supply voltage
Symbol
VIN
Min.
4.5
0.81
-40
-
Typ.
Max.
24.0
15
Unit
V
12.0
Output voltage
VOUT
TOPR
TJ
-
-
-
V
Operating temperature
Junction temperature
+85
+125
℃
℃
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
Sep. 9. 2010 / Rev. 0.0
3/9
ADTECH [ ADTECH ]
