AH5794
SINGLE PHASE HALL EFFECT LATCH FAN MOTOR DRIVER
AH5794
Document number: DS35809 Rev. 1 - 2
4 of 13
www.diodes.com
March 2012
© Diodes Incorporated
NEW PRODUCT
Absolute Maximum Ratings (T
A
= 25°C, unless otherwise noted, Note 3)
Symbol Characteristics Values Unit
V
DD
Supply Voltage 7 V
I
O(PEAK)
Maximum Output Current (Peak) 1000 mA
P
D
Power Dissipation
TSOT26 650
mW
U-DFN2020C-6 750 (Note 4)
T
ST
Storage Temperature Range -65 ~ +150
o
C
ESD HBM Human Body Model ESD Protection 4 kV
Notes: 3. Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability
may be affected by exposure to absolute maximum rating conditions for extended periods of time
4. U-DFN2020C-6 exposed pad soldered to minimum recommended landing pads (see Package Outline Dimension section) on a two-layer 2oz.
copper FR4 PCB (1.6mm thickness) with no thermal vias in exposed PADs or any copper flood connecting to the landing pattern of the
exposed pad.
Recommended Operating Conditions (T
A
= 25°C)
Symbol Parameter Conditions Min Max Unit
V
DD
Supply Voltage at V
DD
pin
DC supply speed control mode 1.8 6.0 V
T
A
Operating Ambient Temperature Range Operating -40 +105
o
C
Electrical Characteristics (T
A
= 25°C, V
DD
= 5V)
Symbol Characteristics Conditions Min Typ. Max Unit
I
DD
Supply Current No Load - 2.2 - mA
V
OH
Output Voltage High
I
OUT
= 300mA
4.70 4.88 - V
I
OUT
= 500mA
4.5 4.8 - V
V
OL
Output Voltage Low
I
OUT
= 300mA
- 0.12 0.3 V
I
OUT
= 500mA
- 0.2 0.5 V
V
OH
+V
OL
Output voltage of N- and PMOS
combined
I
OUT
= 300mA
0.3 0.5 V
I
OUT
= 500mA
0.5 V
T
SW
Output Switching Slope Duration 17 load on O1/O2 - 200 - s
I
LEAK
FG Output Leakage Current - - 5 A
V
FGOL
FG Output Voltage Low
I
FG
= 5mA
- - 0.4 V
T
ON
On Time 350 500 650 ms
R
DR
Duty Ratio
T
OFF
/ T
ON
- 10 -
T
J
_
SDN_TH
IC junction temperature thermal
shutdown threshold
175
o
C
T
J
_
SDN_HYST
IC junction temperature thermal
shutdown hysteresis
25
o
C
