CS5460A-BS 查看數據表（PDF） - Cirrus Logic

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CS5460A-BS

Single Phase, Bi-directional Power/Energy IC

Cirrus Logic 

CS5460A

Voltage

11

Reference Output

Voltage

12

Reference Input

Differential

Current Inputs

15,16

Power Supply Connections

Positive

3

Digital Supply

Digital Ground

4

Negative

13

Analog Supply

Positive

14

Analog Supply

Power Fail Monitor

17

RESET

19

Other

No Connection

18

VREFOUT - The on-chip voltage reference is output from this pin. The voltage reference

has a nominal magnitude of 2.5 V and is reference to the VA- pin on the converter.

VREFIN - The voltage input to this pin establishes the voltage reference for the on-chip

modulator.

IIN+, IIN- - Differential analog input pins for current channel.

VD+ - The positive digital supply is nominally +5 V ±10% relative to DGND.

DGND - The common-mode potential of digital ground must be equal to or above the

common-mode potential of VA-.

VA- - The negative analog supply pin must be at the lowest potential.

VA+ - The positive analog supply is nominally +5 V ±10% relative to VA-.

PFMON - The power fail Monitor pin monitors the analog supply. Typical threshold level

(PMLO) is 2.45 V with respect to the VA- pin. If PFMON voltage threshold is tripped, the

LSD (low-supply detect) bit is set in the Status Register. Once the LSD bit has been set,

it will not be able to be reset until the PFMON voltage increases ~100 mV (typical) above

the PMLO voltage. Therefore, there is hysteresis in the PFMON function.

Reset - When reset is taken low, all internal registers are set to their default states.

NC - No connection. Pin should be left floating.

52

DS487F4

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