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Copyright © 2015

Microsemi

Page 8 of 20

Rev.2.0, 17-Jan-2017

CPG

– PoE BU

One Enterprise Aliso Viejo, CA 92656 USA

PD70101 / PD70201

Datasheet

Symbol

Parameter

Test Conditions / Comment

PD70101 & PD70201

Units

Min

Typ

Max

Unless otherwise specified, the following specifications apply over the operating ambient temperature of -40

°C ≤ TA ≤ 85°C except where otherwise

noted with the following test conditions: VPP= 48V; VEN = HIGH, fs = 250 kHz. Production tests performed at 25°C. Unless otherwise specified VPP is

with respect to VPN_IN, VCC is with respect to PGND.

IVAUX

VAUX Output Current Limit

Isolating switch at ILIM-HIGH

and PGOOD = Low

10

32

mA

DC-DC Controller

VCC

VCC

Maximum Input Operating Voltage

20

V

IVCC

Input Current

VCC< VCC_UVLO or ENABLE = Low.

See Note 5

250

2000

µA

VENABLE and VINS = High; VVCC <

VCC_UVLO_UP; -

40°C ≤ Temp ≤

+55°C. See Note 5

4.5

mA

VCC >VCC_UVLO & ENABLE = High,

No Load on PG, SG, VL, and FSW =

500kHz.

3

mA

VCC_UVLO

VCC UVLO Rising Threshold

VCC raising edge

8.85

9.15

9.5

V

VCC_UVLO

VCC UVLO Falling Threshold

VCC falling edge

7

7.3

7.6

V

POE Port Input UVLO

VINS

UVLO Threshold

1.171

1.200

1.229

V

VINS Input Current

-0.1

+0.1

µA

HYST-VOH

HYST Output High Voltage

ISOURCE = 1mA

2.8

V

HYST-VOL

HYST Output Low Voltage

ISINK = 3mA

0.4

V

Internal LDO’s

VL

+5V LDO

IL < 5mA

4.75

5

5.25

V

VH

-5V LDO

Reference to VCC

-5

V

Soft-Start

ISS_CHG

Soft-start Charging Current

2

RFREQ = 33.2kΩ; VSOFTSTART = 0.5V

32

36

40

µA

ISS_DIS

Soft-start Discharging Current

VSOFTSTART = 0.5V; % of ISS_CHG

10

%

VSS_CH

Soft-start Completion Threshold

1

% of 1.2V

90

95

%

VSS_DISCH

Soft-start Discharge Completion

Threshold

1

50

mV

RSS_DISCH

Soft-start Discharge FET On

Resistance

50

Ω

tDISCH

Soft-start Discharge FET On Time

1 1 cyc = 1/F

FREQ

32

cyc

Switching Frequency and Synchronization

FFREQ

Switching Frequency Range

100

500

kHz

FFREQ

Switching Frequency Accuracy

3

RFREQ = 33.2k

285

315

345

kHz

FSYNC

Synchronization Frequency Range FSYNC > 2x FFREQ

200

1000

kHz

VSYNC-HIGH

Synchronization Voltage High

Threshold

2.4

5

V

VSYNC-LOW

Synchronization Voltage Low

Threshold

0.8

V