SFFS592 August 2024 LM2936Q-Q1
4.1 SOIC Package
Figure 4-1 shows the LM2936Q-Q1 pin diagram for the SOIC package. For a detailed description of the device pins, see the Pin Configuration and Functions section in the LM2936Q-Q1 data sheet.
Figure 4-1 Pin Diagram (SOIC) PackageTable 4-2 Pin FMA for Device Pins
Short-Circuited to Ground
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| OUT | 1 | Device cycles in and out of thermal shutdown depending upon input voltage. Short circuit current limit triggers to clamp output current. | B |
| GND | 2 | No effect. Normal operation. | D |
| GND | 3 | No effect. Normal operation. | D |
| NC | 4 | No effect. Normal operation. | D |
| SD, NC | 5 | Shutdown is forced off, enabling the device permanently. SD control is lost. | B |
| No effect. Normal operation. | D | ||
| GND | 6 | No effect. Normal operation. | D |
| GND | 7 | No effect. Normal operation. | D |
| IN | 8 | Device not powered. Device not functional. Absolute maximum voltages can potentially permanently damage the device. | A |
Table 4-3 Pin FMA for Device Pins
Open-Circuited
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| OUT | 1 | Power not driven to load. Device is unloaded. | D |
| GND | 2 | Marginal thermal performance degradation is possible. Normal operation. | C |
| GND | 3 | Marginal thermal performance degradation is possible. Normal operation. | C |
| NC | 4 | No effect. Normal operation. | D |
| SD, NC | 5 | Shutdown is forced off, enabling the device permanently. SD control is lost. | B |
| No effect. Normal operation. | D | ||
| GND | 6 | Marginal thermal performance degradation is possible. Normal operation. | C |
| GND | 7 | Marginal thermal performance degradation is possible. Normal operation. | C |
| IN | 8 | Device not powered. Device not functional. | B |
Table 4-4 Pin FMA for Device Pins
Short-Circuited to Adjacent Pin
| Pin Name | Pin No. | Shorted to | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|---|
| OUT | 1 | GND | Device cycles in and out of thermal shutdown depending upon input voltage. Short circuit current limit triggers to clamp output current. | B |
| GND | 2 | GND | No effect. Normal operation. | D |
| GND | 3 | NC | No effect. Normal operation. | D |
| SD, NC | 5 | GND | Shutdown is forced off, enabling the device permanently. SD control is lost. | B |
| No effect. Normal operation. | D | |||
| GND | 6 | GND | No effect. Normal operation. | D |
| GND | 7 | IN | Device not powered. Device not functional. Absolute maximum voltages can potentially permanently damage the device. | A |
Table 4-5 Pin FMA for Device Pins Short-Circuited to
IN
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| OUT | 1 | Device shuts off as OUT and is now higher than setpoint. Output is no longer regulated. | B |
| GND | 2 | Device not powered. Device not functional. Absolute maximum voltages can potentially permanently damage the device. | A |
| GND | 3 | Device not powered. Device not functional. Absolute maximum voltages can potentially permanently damage the device. | A |
| NC | 4 | No effect. Normal operation. | D |
| SD, NC | 5 | Device shuts down. | B |
| No effect. Normal operation. | D | ||
| GND | 6 | Device not powered. Device not functional. Absolute maximum voltages can potentially permanently damage the device. | A |
| GND | 7 | Device not powered. Device not functional. Absolute maximum voltages can potentially permanently damage the device. | A |
| IN | 8 | No effect. Normal operation. | D |