P9235A-RNDGI datasheet(3/23 Pages) IDT

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P9235A-R Datasheet

May 17, 2016

Electrical Characteristics

Table 4. Device Characteristics

VIN = 5 V, VDDIO = 3.3 V, EN

¯¯ = 0V, LP= 6.5 µH, CP = 400 nF TA = -40C to +85C. Typical values are at 25°C, unless otherwise noted.

Symbol

Description

Conditions/Notes

Min

Typical

Max

Units

Input Supplies and UVLO

VIN

Input Operating Range

4.5

5.0

5.5

VIN_UVLO_FW

Firmware Controlled Under-

Voltage Lockout.

VIN Rising

4.3

ISTD_BY2

Standby Mode Current

Periodic ping

ISHD

Shutdown Current

ENB = VIN

µA

Enable - EN

¯¯

VOH_ENB

Output logic high

2.0

VOL_ENB

Output logic low

0.25

Buck Converter1,2 - COUT=10µF; L=4.7µH

VOUT

Buck Output Voltage

VIN>5.5V

IOUT

Output Current

N-Channel MOSFET Drivers

TLS_ON_OFF

Low Side Gate Drive Rise & Fall

times

CL= 3nF; 10 – 90%, 90 – 10%

150

THS_ON_OFF

High Side Gate Drive rise & Fall

times

CL= 3nF; 10 – 90%, 90 – 10%

150

300

Input Current Sense

VSEN_OFST

Amplifier offset voltage

Measured at ISNS_OUT pin;

ISNS_H=ISNS_L

0.6

ISENACC_TYP

Measured Current sense

accuracy

VR_ISEN=25mV, I=1.25A

±3.5

Analog to Digital Converter

Resolution

Bit

Channel

Number of channels

VIN,FS

Full scale Input voltage

2.4

LDO181,2 - COUT=1µF;

VOUT18

Output voltage

1.71

1.8

1.89

ΔVOUT/VOUT

Output voltage accuracy

±5

IOUT18_MAX

Maximum load current

LDO331,2 - COUT=1µF;

VOUT33

Output voltage

3.15

3.3

3.45

ΔVOUT/VOUT

Output voltage accuracy

±5

IOUT33_MAX

Maximum Output Current

Thermal Shutdown

TSD

Thermal shutdown

Threshold Rising

140

°C

Threshold Falling

120

°C

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