LB1872 datasheet(2/11 Pages) SANYO

2 / 11 page

No. 5625-2/11

LB1872

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Current drain

ICC

In stop mode

[Output Saturation Voltage] VAGC = 2 V

Source

V(sat)1-1

IO = 0.7 A, RF = 0 Ω

1.5

1.9

V(sat)1-2

IO = 1.5 A, RF = 0 Ω

1.8

2.2

Sink

V(sat)2-1

IO = 0.7 A, RF = 0 Ω

0.3

0.5

V(sat)2-2

IO = 1.5 A, RF = 0 Ω

0.7

1.0

Output leakage current

IO (leak)

VCC = 28 V

100

µA

[5-V Fixed-Voltage Output]

Output voltage

VREG

4.65

5.0

5.35

Voltage regulation

∆VREG1 VCC = 10 to 28 V

100

Load regulation

∆VREG2 IO = 0 to 10 mA

100

Temperature coefficient

∆VREG3 Design target value

mV/°C

[Hall Input Block]

Input bias current

IB(HA)

VAGC = 3 V

µA

Differential-mode input range

VHIN

With a sine wave input

350

Common-mode input range

VICM

Differential input: 50 mV p-p

3.5

VCC – 3.5

Input offset voltage

VIOH

Design target value

–20

+20

[Low Voltage Protection Circuit]

Operating voltage

VSD

8.4

8.8

9.2

Hysteresis

∆VSD

0.2

0.4

0.6

[Thermal Protection Circuit]

Shutdown temperature

TSD

Design target value (junction temperature)

150

180

°C

Hysteresis

∆TSD

Design target value (junction temperature)

°C

[FG Amplifier]

Input offset voltage

VIO(FG)

Design target value

–10

+10

Input bias current

IB(FG)

–1

µA

DC bias level

VB(FG)

–5%

1/2VREG

+5%

Output high-level voltage

VOH(FG)

IOH = –500 µA

VREG – 1.2 VREG – 0.8

Output low-level voltage

VOL(FG)

IOL = 500 µA

0.8

1.2

[FG Schmitt Input Block]

Input hysteresis (high to low)

VSHL

Input hysteresis (low to high)

VSLH

150

Hysteresis

VFGL

100

150

200

Input operating level

VFGSIL

400

Electrical Characteristics at Ta = 25°C, VCC = 24 V

Parameter

Symbol

Conditions

Ratings

Unit

Supply voltage

VCC

10 to 28

5.0-V fixed-voltage output current

IREG

0 to –15

LD pin voltage

VLD

0 to 28

FGS pin voltage

VFGS

0 to 28

LD pin output current

ILD

0 to 10

FGS pin output current

IFGS

0 to 5

Allowable Operating Ranges at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

Maximum output current

IO max

≤ 0.5s

2.0

Allowable power dissipation

Pd max1

Independent IC

Pd max2

Arbitrarily large heat sink

Operating temperature

Topr

–20 to +80

°C

Storage temperature

Tstg

–55 to +150

°C

Specifications

Absolute Maximum Ratings at Ta = 25°C

Continued on next page.

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