STPM098C datasheet(40/110 Pages) STMICROELECTRONICS

40 / 110 page

3.6.2

Digital output (DO)

Digital output pins on STPM098C are used to transfer an internal digital information to an external voltage

domain.

Table 27. Digital input pins functional partitioning

Default state

Description

PWMn [n = 1, 2, 3, 4, 5, 6, 7, 8]

Type A - Push-pull

PWM pins

SM_DATA, SM_CLK, SM_ALERT, FAULT, VR_HOT, POWERIN_ALERT,

VRRDY1, VRRD2

Type B - Open drain PMBus™ pins and FOR pins

Type A digital output allows HIZ state. HIZ state is achieved by switching of pull-up and pull-down sources. No

active sources are available on output pin in this state. When unsupplied, type A digital output goes directly in HIZ

state.

Figure 32. Digital output simplified structures - Type A and B

GND

From Main Logic

Output Pin

VREF2

GND

From Main logic

Level

Shifter

Shoot-through protection

V3V3_DIG

AND

Output Pin

Table 28. Output electrical characteristics - Type A

Symbol

Parameter

Test condition

Min

Typ Max Unit Notes

DOA_out_hl

High output voltage

Iload = -1 mA

VREF2-0.2

DOA_out_ll

Low output voltage

Iload = 1 mA

0.2

DOA_out_hiz_leak

Output leakage in HIZ

Pin = 1.7 V

-5

T_doa_rt

Output rise time

Cload = 120 pF from 10% to 70%

T_doa_ft

Output fall time

Cload = 120 pF from 70% to 10%

Table 29. Output electrical characteristics - Type B

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Notes

DOB_in_ll

Low output voltage

Iload = 350 μA

0.4

T_dob_ft

Output fall time

Cload = 120 pF from 70% to 10%

12.5

3.7

Internal clock

Table 30. Internal clock electrical characteristics

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Notes

CLK_freq

System clock frequency

CLK_SSM_EN = 0

MHz -

CLK_freq_acc

System clock frequency accuracy

CLK_SSM_EN = 0

-5

CLK_freq_match

Main vs. auxiliary frequency matching

CLK_SSM_EN = 0

-10

+10

STPM098C

Functional description

DS14440 - Rev 1

page 40/110

STPM098C bảng dữ liệu(PDF) 40 Page - STMicroelectronics

STPM098C bảng dữ liệu(HTML) 40 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 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL