STODD01 STMicroelectronics, STODD01 Datasheet - Page 16

• Manufacturer Part Number: STODD01
• Description: Monolithic power management for high definition ODD with true shut-down, reset, and programmable step-up voltage
• Manufacturer: STMicroelectronics

Specifications of STODD01

• Typical Efficiency: > 90 %
• Low Switching Quiescent Current: max 2.2 mA overtemperature range

Detailed description
Figure 12. Reset function
7.5
7.6
Figure 13. OVP function
16/31
The use of the reset function requires an external pull-up resistor which must be connected
between the reset pin and V
in the range of 100 kΩ to 1 MΩ is recommended.
If the reset function is not used, the reset pin may remain floating on the board.
Overtemperature protection
An internal temperature sensor continuously monitors the IC junction temperature. If the IC
temperature exceeds 150 °C (typ.) the device stops operating. As soon as the temperature
falls below 135 °C (typ.) normal operation is restored.
Overvoltage protection
The device provides overvoltage protection for monitoring the step-up output voltage.
If the sensed voltage on ch1 output exceeds 15.3 V (typ.) the step-up channel stops
switching. As soon as the output capacitor is discharged and the sensed voltage is below
14.8 V, it re-starts to switch (see
Reset
Reset
V
V
IN
IN
OVP signal
Switching
15.3V
V
V
IN
R_TH
R_TH
or any V
Doc ID 17789 Rev 2
t
t
DEL
DEL
OUTPUT Voltage
Figure
No Switching
OUT
13).
voltage lower than 5 V. A pull-up resistor for reset
14.8V
Switching
V
V
R_TL
R_TL
STODD01