JAJSMG4A June 2023 – September 2023 TPS922052 , TPS922053 , TPS922054 , TPS922055
PRODUCTION DATA
PIN | TYPE(1) | DESCRIPTION | |||
---|---|---|---|---|---|
NAME | SOT23-14 | VSON-14 | WSON-12 | ||
PGND | 1 | 1 | Thermal Pad | G | Power ground pin. |
AGND | 2 | 2 | Thermal Pad | G | Analog ground pin. |
VIN | 3 | 3 | 1 | P | Input power pin. |
VCC | 4 | 4 | 2 | P | Internal LDO output pin. Connect with a 10-V, 1-μF capacitor to AGND. |
ADIM/HD | 5 | 5 | 3 | I | Analog dimming or hybrid dimming pin. Pull high for PWM dimming only, pull low for hybrid dimming, input PWM signal for analog dimming. |
EN/PWM | 6 | 6 | 4 | I | Enable pin or PWM dimming pin. Pull high for always on, pull low for disabling the device, input PWM signal for PWM dimming. |
FAULT | 7 | 7 | 5 | O | Open drain output pin. Pull low when fault is detected. |
TEMP | 8 | 8 | 6 | I/O | Thermal foldback pin. Put different resistor values to AGND to set different thermal foldback behavior curves. |
FSET | 9 | 9 | 7 | I/O | Switching frequency set pin, with range of 100 kHz to 2.2 MHz. Put different resistor values to AGND for different switching frequencies. |
COMP | 10 | 10 | 8 | I/O | Error-amilifier output pin. Connect capacitors to AGND. Different capacitor values determine different softstart times and bandwidths. |
UVP | 11 | 11 | 9 | I | Undervoltage detection pin. Put different resistor dividers to set the LED open detection thresholds. |
CSP | 12 | 12 | 10 | I | LED current sense positive pin. |
CSN | 13 | 13 | 11 | I | LED current sense negative pin. |
SW | 14 | 14 | 12 | P | Switching node pin. Internally connected to the low-side MOSFET. Connect with the power inductor and the schottky diode. |
Thermal Pad | N/A | Y | Y | G | Power/analog ground pin for WSON-12 package. |