CAT8836 Datasheet – NanoPower Supervisory Circuit
CAT8836 overview
The CAT8836 is a NanoPower Supervisory Circuit made by ON Semiconductor, supplied in a TSOT−23 Type package. The absolute maximum ratings table on this page lists the 8 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the CAT8836 pinout and maximum ratings, with the full datasheet PDF to preview below or download.
The CAT8836 is a voltage supervisory circuit intended to provide circuit initialization and start−up timing for DSPs and other processor−based systems.
When system power comes on, CAT8836’s output once the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps the output active as long as VDD remains below the threshold voltage of VTH. After VDD exceeds the monitoring threshold an internal timer delays the return of the output to the inactive state (high) to ensure proper system reset.
The duration of this reset delay is controlled by the CT input. When CT is connected to GND the reset delay is 10 ms, typical, in duration and when connected to VDD, the delay time is typically 200 ms. Whenever the supply voltage drops below the monitoring threshold voltage VTH, the output becomes active (low) again.
Datasheet
CAT8836 features
- Supply Current: 220 nA (typical)
- Precision Supply Voltage Supervision Range: 1.8 V, 2.5 V, 3.0 V, and 3.3 V
- Power−On Reset Generator with Selectable Delay Time: 10 ms or 200 ms
- Push/Pull RESET (active low) Output
- Manual Reset Input
- Pin−for−Pin Replacement for TPS3836
- TSOT23−5 Package
- Temperature Range: −40°C to +85°C
- These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
CAT8836 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | CT | Delay select pin for a fixed value of 10 ms or 200 ms. |
| 2 | GND | Ground |
| 3 | MR | Manual Reset |
| 4 | RESET | Active low Reset. Reset is asserted either if VDD falls below reset threshold or if MR is activated. |
| 5 | VDD | Supply Voltage which is monitored |
Absolute maximum ratings
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Supply voltage (Note 1) | VDD | 7 | V |
| All other pins (Note 1) | −0.3 to 6 | V | |
| Maximum low output current | IOL | 5 | mA |
| Maximum high output current | IOH | −5 | mA |
| Input clamp current, (VI < 0 or VI > VDD) | IIK | ±10 | mA |
| Output clamp current, (VO < 0 or VO > VDD) | IOK | ±10 | mA |
| Storage temperature range | TSTG | −65 to +150 | °C |
| Soldering temperature | +260 | °C |
CAT8836 applications
- Applications Using Low−Power DSPs, Microcontrollers, or Microprocessors
- Portable− and Battery−Powered Equipment
- Intelligent Instruments
- Wireless Communication Systems
- Automotive Systems
- Notebook Computers
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