Moteur de recherche de fiches techniques de composants électroniques |
|
ADP1046ACPZ-RL Fiches technique(PDF) 11 Page - Analog Devices |
|
ADP1046ACPZ-RL Fiches technique(HTML) 11 Page - Analog Devices |
11 / 96 page Data Sheet ADP1046 Rev. 0 | Page 11 of 96 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS PIN 1 INDICATOR 1 VS2 2 AGND 3 VS1 4 CS2– 5 CS2+ 6 ACSNS 7 CS1 8 PGND 24 SHAREi 23 SHAREo 22 PGOOD1 21 PGOOD2 20 FLAGIN 19 PSON 18 SDA 17 SCL ADP1046 TOP VIEW (Not to Scale) NOTES 1. THE ADP1046 HAS AN EXPOSED THERMAL PAD ON THE UNDERSIDE OF THE PACKAGE. FOR INCREASED RELIABILITY OF THE SOLDER JOINTS AND MAXIMUM THERMAL CAPABILITY, IT IS RECOMMENDED THAT THE PAD BE SOLDERED TO THE PCB AGND PLANE. Figure 4. Pin Configuration Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 VS2 Power Supply Output Voltage Sense Input. This signal is referenced to PGND and is the input to a low frequency Σ-Δ ADC. Nominal voltage at this pin should be 1 V. The resistor divider on this input must have a tolerance specification of 0.5% or better to allow for trimming. 2 AGND Analog Ground. This pin is the ground for the analog circuitry and the return for the VDD pin of the ADP1046. 3 VS1 Local Output Voltage Sense Input. This signal is referenced to PGND. Nominal voltage at this pin should be 1 V. The resistor divider on this input must have a tolerance specification of 0.5% or better to allow for trimming. 4 CS2− Inverting Differential Current Sense Input. Nominal voltage at this pin should be 1 V for best operation. When using low-side current sensing, place a 5 kΩ resistor between the sense resistor and this pin. When using high- side current sensing in a 12 V application, place a 5.5 kΩ resistor between the sense resistor and this pin. When using high-side current sensing with a voltage other than 12 V, use this formula to calculate the resistor value: R = (VOUT − 1)/2 mA. A 0.1% resistor must be used to connect this circuit. If this pin is not used, connect it to PGND and set CS2± to high-side current sense mode (set Bit 2 of Register 0x27). It is recommended that a 500 pF to 1000 pF capacitor be connected either across the resistor or from this pin to AGND. 5 CS2+ Noninverting Differential Current Sense Input. Nominal voltage at this pin should be 1 V for best operation. When using low-side current sensing, place a 5 kΩ resistor between the sense resistor and this pin. When using high-side current sensing in a 12 V application, place a 5.5 kΩ resistor between the sense resistor and this pin. When using high-side current sensing with a voltage other than 12 V, use this formula to calculate the resistor value: R = (VOUT − 1)/2 mA. A 0.1% resistor must be used to connect this circuit. If this pin is not used, connect it to PGND and set CS2± to high-side current sense mode (set Bit 2 of Register 0x27). It is recommended that a 500 pF to 1000 pF capacitor be connected either across the resistor or from this pin to AGND. 6 ACSNS AC Sense Input. This input is connected upstream of the main output inductor through a resistor divider network. The nominal voltage for this circuit is 0.45 V. This pin is also connected to the voltage feedforward ADC (nominal voltage 1 V). This signal is referenced to PGND. 7 CS1 Primary Side Current Sense Input. This pin is connected to the primary side current sensing ADC and to the fast OCP comparator. This signal is referenced to PGND. The resistors on this input must have a tolerance specification of 0.5% or better to allow for trimming. If this pin is not used, connect it to PGND. 8 PGND Power Ground. This pin is the ground connection for the main power rail of the power supply and is the reference for all voltage and current sensing other than CS2± and VS3±. Star connect to AGND. 9 SR1 Synchronous Rectifier Output. This PWM output connects to the input of a FET driver. This pin can be disabled when not in use. This signal is referenced to AGND. 10 SR2 Synchronous Rectifier Output. This PWM output connects to the input of a FET driver. This pin can be disabled when not in use. This signal is referenced to AGND. 11 OUTA PWM Output for Primary Side Switch. This pin can be disabled when not in use. This signal is referenced to AGND. 12 OUTB PWM Output for Primary Side Switch. This pin can be disabled when not in use. This signal is referenced to AGND. |
Numéro de pièce similaire - ADP1046ACPZ-RL |
|
Description similaire - ADP1046ACPZ-RL |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |