L99LD21 datasheet(55/73 Pages) STMICROELECTRONICS

55 / 73 page

DS11130 Rev 5

55/73

L99LD21

Electrical specifications

Error amplifier trans

conductance gain

VFB - VFB_REF[11] = ±35 mV;

VCOMP = 1.5 V; VS = 13 V;

IOUT = ±20 µA

570

Ω-1

ICOMP

Trans conductance amplifier

Output current

Sourcing into COMP pin;

VFB = 3.3 V; VS = 13 V

110

µA

Sinking from COMP pin;

VFB = 0 V; VS = 13 V

-110

µA

GLA

Gain of linear amplifier

VS = 13 V; VSP = 250 mV;

VSN = 0 V

4.25

V/V

ISLOPE

Slope compensation current

value injected to SP pin

A/s

Table 37. Boost controller (continued)

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

Table 38. Boost controller reference voltage

Symbol

Parameter

BOOSTREF [1:0]

Min

Typ

Max

Unit

VFB_REF[00]

Boost feedback reference

voltage

[0,0]

0.596

VFB_REF[01]

[0,1]

0.895

VFB_REF[10]

[1,0]

1.242

VFB_REF[11]

[1,1]

1.496

VFB_REF_ACC

Boost feedback reference

voltage accuracy

all configuration

-2

VFB_OV_ON

Boost OV activation

threshold

[1,1]

Typ-3%

1.03 * VFB_REF[11]

Typ+3%

[x,x]

1.05 * VFB_REF[xx]

(1)

VFB_OV_OFF

Boost OV de-activation

threshold

[x,x]

VFB_REF[xx]

VBST_FB_FAIL_TH

Boost feedback pin failure -

threshold

Ramp on FB pin

from 1 V down to 0 V

130

“xx”<> “11”.

L99LD21 数据表(PDF) 55 Page - STMicroelectronics

L99LD21 数据表(HTML) 55 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73

数据表下载

链接网址

L99LD21 数据表(PDF) 55 Page - STMicroelectronics

L99LD21 数据表(HTML) 55 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73

数据表 下载

链接网址

数据表下载