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PDF BM92A20MWV Data sheet ( Hoja de datos )
| Número de pieza | BM92A20MWV | |
| Descripción | USB Type-C Power Delivery Controller | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
USB Type-C Power Delivery Controller
BM92A20MWV
General Description
BM92A20 is a USB Type-C Power Delivery (PD)
controller that supports USB Power Delivery using
base-band communication. It is compatible with USB
Type-C Specification and USB Power Delivery
specification.
BM92A20 includes support for the PD policy engine and
be able to operate independently. In addition, this IC has
secondary side error amplifier that support variable
output voltage and it is suitable for PD AC adapter
systems.
Features
USB Type-C Specification compatible
USB PD Specification compatible (BMC-PHY)
Power path control using N-channel MOSFET
drivers with back flow prevention
Type-C cable orientation detection
Supports DFP-SOURCE mode
Integrated Secondary side of AC adapter system
EC-less Operation (Auto mode)
Key Specifications
VEX Voltage Range:
4.75V to 20V
VBUS Voltage Range:
4.75V to 20V
Power Consumption at Sleep Power: 0.9mW(Typ)
Operating Temperature Range: -30°C to +105°C
Package
UQFN40V5050A
W (Typ) x D (Typ) x H (Max)
5.00mm x 5.00mm x 1.00mm
Applications
Consumer Applications
AC Adaptors, Chargers
Typical Application Circuit
Q2 Q1
VBUS
+
SGND
SGND
IFB
SGND
SGND
ACDC
Primary
Side
GND SGND
VCCIN
R3
GPIO
For TEST
VCCIN
VDDIO
SMDATA
SMCLK
GPIO0
GPIO1
VDDIO
GPIO7
GPIO6
GPIO5
GPIO4
DBGMODDT
VDDIO
DBGRSTCK
IDSEL/ATST1
VSTR/ATST2
XRST
SGND
BM92A20MWV
UQFN40V5050A
CC1
CC2
VCONN_IN
XCLPOFF1
XCLPOFF2
(Open or 5V Sourece)
VSVR
For
BC1.2
DCP
CC1
(Open or CC2)
Captive cable
with a USB
Type-C plug
or
Type-C
Receptacle
D+
D-
SGND
VCCIN
SGND
GND
Figure A. Typical Application Circuit
SGND
GND
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
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BM92A20MWV
2. Pin Description
PKG
PIN#
Pin Name
1 GND
2 VSTR/ATST2
3 IDSEL/ATST1
4 XRST
5 VCCIN
6 VSVR
7 DSCHG
8 GND
9 VB
10 GPIO4
11 GPIO5
12 GPIO6
13 GPIO7
14 DBGRSTCK
15 DBGMODDT
16 GPIO0
17 GPIO1
18 VDDIO
19 SMDATA
20 SMCLK
21 LDISCHG_G1
22 LDISCHG_SRC
23 LDISCHG_G2
24 SPDSRC_G1
25 SPDSRC_SRC
26 SPDSRC_G2
(Note 1) N-ch Open Drain
Table 2-1 Pin Description
BLOCK
I/O
Type
Digital
I/O Level
Description
GND
I GND
Ground
TEST/Debug IO Analog
TEST/Debug I Analog VCCIN
Interface
I Digital VCCIN
USB-PD
O Analog
POWER
Interface
GND
POWER
Interface
Interface
Interface
Interface
TEST
TEST
Interface
Interface
POWER
Interface
Interface
FET Gate
Control
FET Gate
Control
FET Gate
Control
FET Gate
Control
FET Gate
Control
FET Gate
Control
I
IO
I
I
I
O(Note 1)
O(Note 1)
O(Note 1)
IO
IO
O(Note 1)
O(Note 1)
I
IO
I
O
Power
Analog
GND
Power
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Power
Digital
Digital
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
Analog
I Analog
O Analog
O Analog
I Analog
O Analog
Analog TEST/ Debug Pin2
SMBus ID (device address)
selection “H”:1Ah, “L”:18h
/Debug Pin1
Digital block Reset
Internal Power supply
(For internal use, need to
connect capacitor to GND
Connect to Ground
Discharge NMOS Drain
Ground
Power Source from VBUS
Mode fixation (Fix: L)
NC pin
NC pin
NC pin
Test for logic
Test for logic
NC pin
Alert signal
Interface Voltage
SMBus Data
SMBus Clock
VEX Discharge
VEX Discharge
Not used
Power Path FET Gate Control
Power Path FET BG/SRC
Voltage
Power Path FET Gate Control
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
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TSZ02201-0232AA000450-1-2
21.Sep.2016 Rev.001
5 Page 
BM92A20MWV
4.7. Power Supply Management
4.7.1. Outline
BM92A20 has a power selector. It select the lowest power supply voltage from VSVR, VEX, or VB for low power
consumption. Internal Power Supply (VCCIN) gives priority in order of VSVR, VEX, and VB. VCCIN supplied from the
power selector is used to BM92A20 main power source. LDOs (for internal only) are supplied from VCCIN, and output each
internal supply voltage.
Each power supply input have UVLO and OVLO. And POR (power on reset) signal is generated from detection of
LDO28OK, LDO15DOK, LDO15AOK, and VCCIN.
UVLO
/OVLO
signal
UVLO/OVLO
Detection
Internal
Power
Supply
LDO28OK
POR
signal
Internal
Power
Supply
VDDIO
detection
signal
POR
LDO15DOK
LDO15AOK
DET
LDO
LDO
LDO
VSVR
VEX
VB
VCCIN
LDO28CAP
LDO15DCAP
LDO15ACAP
VDDIO
VBUS 0V
VEX
0V
VSVR 0V
5 to 20V
5 to 20V
5V
VCCIN 0V
VBUS
VEX
VSVR
Figure 4-1 Power Supply Management Block Diagram and Timing Chart
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
11/29
TSZ02201-0232AA000450-1-2
21.Sep.2016 Rev.001
11 Page | ||
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