Electrical specifications

L5951

10/18

DocID7510 Rev 2

7.8V/100mA regulator output 3

VREG3

Output voltage

IREG3 =100mA - 8.8V  VBAT 

range

7.60

7.8

8

V

DVline

Line regulation

8.8V

 VBAT  26V

(Measure

VREG3 across VBAT

range)

50

mV

DVload

Load regulation

5mA

 IREG3  100mA

(Measure

VREG3 across VLOAD

range)

50

mV

VDROPOUT

Dropout voltage

(Measure VBAT - VREG3 when

VREG3 drops 0.1V)

IREG3 = 100mA

IREG3 = 5mA

0.5

0.04

V

V

Ilim3

Current limit

200

mA

SVR3

Reg3 supply voltage rejection

IREG1 = IREG2 = IREG3 = 50mA

f = 20 to 20kHz

VBAT = 14Vdc, 1Vac,pp

45

dB

DC characteristics for class 2 transceiver (Standard loads: IREG1 = 0.5mA, IREG2 = 0.5mA, IREG3 = 5mA)

BUSih

BUSil

BUS guaranteed

Input voltages

Verify RX > 3 VDC

Verify RX < 3 VDC

4.25

3.7

3.50

V

V

BUSHyst BUS hysteresis

BUSItoh - BUShhtol

0.15

V

BUSov

BUS output voltage

TX = 5 VDC,

BUS = 257 to 1380

 to gnd

VBAT - 8.2 to 16 VDC

VBAT - 6.0 to 8.2 VDC

TX = 0V

7.2

5

V

V

IBUSshort BUS short circuit current

TX = 5VDC

BUS = -2 to 4.8VDC

170

mA

IBUSleak

BUS leakage current

BUS = -2 to 0 VDC

BUS = 0 to VBAT

0

0

mA

mA

LOADON Load output

ILOAD = 6mA

0.045

V

LOADDio Load output (unpowered)

VBAT = 0V, ILOAD = 6mA

0.7

V

IBUSloss

ILOADloss

BUS & LOAD current during loss

of assembly VBAT or GND

IVBAT = 0mA,

BUS = -18 to 9VDC

LOAD = -18 to 0 VDC

11

39

µA

µA

TXVIL

TXVIH

TX input voltage

Verify BUS < 3.875VDC

Verify BUS > 3.875VDC

2

0.8

V

V

ITXVIL

ITXVIH

TX input current

TX = 5VDC

TX = 0VDC

110

0

µA

µA

4Trip1

4Trip2

4X input trip point voltages

Normal Mode

4X Mode

1.4

V

Table 6. Electrical characteristics (continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Obsolete

Product(s)

- Obsolete

Product(s)