Click here for production status of specific part numbers.
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
General Description
The MAX20323/MAX20323A/MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
overvoltage
protectors feature internal overvoltage threshold and
surge protection to turn off the switches and prevent damage
to USB type-C CC/SBU pins.
The devices have two channels switches with 0.27Ω (typ)
on-resistance that are turned on when inputs are below
overvoltage threshold. When overvoltage threshold is
exceeded on one of the channels, the corresponding
switch is turned off and replaced by an accurate pullup
current to output (CC1_O/CC2_O) that is sourced from
input (CC1_I/CC2_I). (The MAX20323A/F do not have the
pullup current feature).
The devices are available in a 12-bump (0.4mm pitch,
1.7mm x 1.32mm) WLP package and operate over the
-40°C to +85°C extended temperature range.
Applications
●●
●●
●●
●●
Smart Phones
Tablets
Phablets
Industrial PCs
19-100074; Rev 3; 1/19
USB Type-C CC-Pin
Overvoltage Protector
Benefits and Features
●● Flexible System Design
• Wide Operating Supply Voltage Range: 2.5V to 5.5V
• Integrated 270mΩ (typ) Switch per Channel with
1A Continuous Current Capability
• Low Supply Current of 20µA (typ) when CC Inputs
Are Under Overvoltage Threshold
• Accurate Pullup Currents to CC Outputs When
CC Inputs Exceed Overvoltage Threshold (Except
MAX20323A/F)
●● Reliable Protection
• Accurate OVLO Threshold: 5.75V±0.2V
• Surge Immunity
• MAX20323/A/B/C/E/F: Over ±90V
• MAX20323D: ±80V with No VENCC or ±60V with
Valid VENCC
• Ultra-Fast Turn Off: 100ns (typ) Response Time
• Thermal Shutdown Protection
●● Space Saving
• 12-Bump 0.4mm Pitch 1.7mm x 1.32mm WLP
Ordering Information appears at end of data sheet.
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Absolute Maximum Ratings
(All voltages referenced to GND.)
VENCC, EN_TST......................................................-0.3V to +6V
CC1_I, CC2_I (MAX20323,
MAX20323A, MAX20323B).............................-0.3V to +13.5V
CC1_I, CC2_I (MAX20323C, MAX20323D,
MAX20323E, MAX20323F).............................-0.3V to +21.0V
CC1_O, CC2_O.......................................................-0.3V to +6V
Continuous Current through
CC1_I-CC1_O, CC2_I-CC2_O...........................................±1A
Continuous Power Dissipation (TA = +70°C)
WLP (derate 13.73mW/°C above +70°C)................1098.4mW
Operating Temperature Range............................ -40°C to +85°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Soldering Temperature (reflow)........................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Information
PACKAGE TYPE: 12 WLP
Package Code
N121M1+1
Outline Number
21-100167
Land Pattern Number
Refer to Application Note 1891
THERMAL RESISTANCE, FOUR-LAYER BOARD
.
Junction to Ambient (θJA)
72.82°C/W
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
www.maximintegrated.com
Maxim Integrated │ 2
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Electrical Characteristics
(VENCC = 2.5V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VENCC = 4.3V, TA = +25°C) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
5.5
V
SUPPLY OPERATION
Operating Voltage
VENCC
Supply Current
IVENCC
VPOR_R/F
Power On Reset
VPOR_H
2.5
VCC1_I = VCC2_I = 0V
20
35
VCC1_I = VCC2_I = 9V,
(MAX20323, MAX20323C, MAX20323D)
140
170
VENCC rising and falling
2.1
2.5
µA
V
Hysteresis
23
mV
IOUT = 0.1A
270
500
mΩ
5.75
5.95
V
CC INPUTS TO CC OUTPUTS
On Resistance
Internal Overvoltage
Lockout and Switchover
Threshold
CC1_I, CC2_I Power-On
Input Impedance
Current Source
CC1_I to CC1_O
CC2_I to CC2_O
Current Source CC1_O,
CC2_O Voltage Clamp
CC1_I, CC2_I Power Off
Voltage Clamp
CC1_I, CC2_I Power Off
RD
On Capacitance
www.maximintegrated.com
RON
VOVLO_R
VCC1_I, VCC2_I rising
5.55
VOVLO_F
VCC1_I, VCC2_I falling
5.5
VOVLO_H
Hysteresis
RCC_I
ISRC_180
ISRC_80
VCLP_ISRC
VCLP_CC_I
RD
CON
50
VCC1_I, VCC2_I = 5.5V
VCC1_I,
VCC2_I > VOVLO_R,
VCC1_O,
VCC2_O = 0 to 3V
V
mV
1
MAX20323
MAX20323C
MAX20323D
MAX20323B
MAX20323E
CC1_O, CC2_O open, CLOAD ≤ 1nF
(not present in MAX20323A/F)
MΩ
165.6
180
194.4
72
80
88
5.5
5.75
6
VENCC = 0 to 2.1V,
ICC1_I, ICC2_I = 356.4µA
(not present in MAX20323F)
2.18
VENCC = 0 to 2.1V,
ICC1_I, ICC2_I = 200µA
(not present in MAX20323F)
1.6
µA
V
V
VENCC = 0 to 2.1V,
VCC1_I, VCC2_I = 2.18V to 5.5V
(not present in MAX20323F)
5.1
kΩ
RSOURCE = RLOAD = 50Ω, 0-1.2V,
50MHz signal
62
pF
Maxim Integrated │ 3
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Electrical Characteristics (continued)
(VENCC = 2.5V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VENCC = 4.3V, TA = +25°C) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TIMING CHARACTERISTICS (NOTE 2)
Switch Turn-on Time
tON_SW
VCC1_I, VCC2_I falling below OVLO
to VCC1_O, VCC2_O = 90% of VCC1_I,
VCC2_I, RL = 1kΩ, CL = 400pF
90
µs
Switch Turn-Off Time
tOFF_SW
VCC1_I, VCC2_I rising at 1V/10ns
above OVLO until VCC1_O,
VCC2_O stop rising, RL = 100Ω
0.1
µs
Current Source Turn-on
Time
tCC_ISRC_ON
150
µs
Current Source Turn-off
Time
tCC_ISRC_OFF
2
µs
Thermal Shutdown
TSHDWN_R
135
°C
Thermal Shutdown
Hysteresis
TSHDWN_H
20
°C
THERMAL PROTECTION
ESD PROTECTION
IEC 61000-4-2 Contact
Discharge
CC1_I, CC2_I
±8
kV
IEC 61000-4-2 Air Gap
Discharge
CC1_I, CC2_I
±15
kV
CC1_I, CC2_I
±20
All other pins
±2
Human Body Model
kV
Note 1: All devices are 100% production tested at TA = +25°C. Specifications over the operating temperature range are guaranteed
by design.
Note 2: All timing characteristics are measured using 20% and 80% level unless otherwise specified.
www.maximintegrated.com
Maxim Integrated │ 4
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Typical Operating Characteristics
(VENCC = 4.3V, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. CC INPUT VOLTAGE
TA = +25ºC
140
120
160
TA = +85ºC
100
80
60
40
MAX20323
CC1_I = CC2_I
0
100
80
60
40
MAX20323C
or MAX20323D
CC1_I = CC2_I
20
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
0
CC INPUT VOLTAGE (V)
toc04
TA = +85ºC
TA = +25ºC
1.0
TA = -40ºC
0.8
0.6
0.4
0.0
2.5
3.0
3.5
4.0
4.5
VENCC (V)
5.0
SWITCH TURN-ON WAVEFORM
5.5
179
178
177
VENCC = 3V
MAX20323
10 12 14 16 18 20 22
5
6
7
toc05
1.05
1.00
NORMALIZED TO CC
LOAD CURRENT 0.1A
12
13
14
toc06
1.004
TA = +85ºC
1.002
TA = +25ºC
1.000
0.998
0.996
TA = -40ºC
0.994
0.990
NORMALIZED TO
VENCC = 3.3V, TA = +25ºC
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VENCC (V)
OVP TO CURRENT SOURCE
toc08
VCC1_I
5V/div
0V
VCC1_O
11
1.006
0.992
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OVP EVENT
5V/div
10
1.008
toc07
0V
9
NORMALIZED OVLO THRESHOLD
vs. SUPPLY VOLTAGE
1.010
1.10
0.90
8
CC INPUT VOLTAGE (V)
CC OUTPUT LOAD CURRENT (A)
VCC1_I
VENCC
TA = +85ºC
180
175
1.15
0.95
NORMALIZED TO
VENCC=3.3V, TA = +25ºC
0.2
8
181
176
NORMALIZED OVLO THRESHOLD
NORMALIZED ON-RESISTANCE
NORMALIZED ON-RESISTANCE
1.6
1.2
6
NORMALIZED ON RESISTANCE
vs. CC LOAD CURRENT
1.20
1.8
1.4
4
TA = +25ºC
182
CC INPUT VOLTAGE (V)
NORMALIZED ON RESISTANCE
vs. SUPPLY VOLTAGE
2.0
2
TA = -40ºC
183
TA = -40ºC
120
toc03
184
TA = +85ºC
TA = +25°C
CURRENT SOURCE
vs. CC INPUT VOLTAGE
185
140
TA = -40ºC
20
toc02
CURRENT SOURCE (µA)
SUPPLY CURRENT (µA)
160
SUPPLY CURRENT
vs. CC INPUT VOLTAGE
180
SUPPLY CURRENT (µA)
180
toc01
toc09
VCC2_I
5V/div
0V
5V/div
VENCC 0V TO 3.3V
CC1_I PULLUP TO 5V WITH 10kΩ
200µs/div
www.maximintegrated.com
5V/div
VCC1_O
0V
5V/div
CC1_I PULLUP WITH 10kΩ FROM 5V TO 12V
1µs/div
VCC2_O
0V
5V/div
CC1_I PULLUP WITH 10kΩ FROM 5V TO 12V
100µs/div
Maxim Integrated │ 5
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Bump Configurations
TOP VIEW
(BUMPS ON BOTTOM)
1
2
3
4
MAX20323/MAX20323A/MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
A
EN_TST
GND
GND
VENCC
CC1_O
CC1_I
CC2_I
CC2_O
CC1_O
CC1_I
CC2_I
CC2_O
B
C
Bump Descriptions
BUMP
NAME
A1
EN_TST
A2, A3
GND
A4
VENCC
Supply and Active-High Enable Input. Bypass VENCC to GND with a 0.1µF ceramic capacitor
as close as possible to the device.
B1, C1
CC1_O
Overvoltage Protected CC1 Output.
B2, C2
CC1_I
Overvoltage Protected CC1 Input.
B3, C3
CC2_I
Overvoltage Protected CC2 Input.
B4, C4
CC2_O
Overvoltage Protected CC2 Output.
www.maximintegrated.com
FUNCTION
Test Input. Used only for test purposes. Connect EN_TST to ground for normal operation.
Ground.
Maxim Integrated │ 6
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Functional Diagram
OVLO1
CC1_I
MAX20323/MAX20323A/MAX20323B
VOVLO
13.5V
DC MAX
CC1_O
RD
180/0/80µA
ON IF
PORB = 0
ON IF
OVLO1 = 1
CC2_I
0.1µF
VPOR
VOVLO
13.5V
DC MAX
CC2_O
RD
180/0/80µA
ON IF
PORB = 0
ON IF
OVLO2 = 1
GND
www.maximintegrated.com
VENCC
PORB
CONTROL
BLOCK
OVLO2
5.75V
5.75V
EN_TST
Maxim Integrated │ 7
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Functional Diagram (continued)
OVLO1
CC1_I
MAX20323C/MAX20323D/MAX20323E
VOVLO
21.0V
DC MAX
CC1_O
RD
180/180/80µA
ON IF
PORB = 0
ON IF
OVLO1 = 1
CC2_I
0.1µF
VPOR
VOVLO
21.0V
DC MAX
CC2_O
RD
180/180/80µA
ON IF
PORB = 0
ON IF
OVLO2 = 1
GND
www.maximintegrated.com
VENCC
PORB
CONTROL
BLOCK
OVLO2
5.75V
5.75V
EN_TST
Maxim Integrated │ 8
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Functional Diagram (continued)
CC1_I
MAX20323F
21.0V
DC MAX
CC1_O
OVLO1
VOVLO
0.1µF
VPOR
OVLO2
CC2_I
VENCC
PORB
CONTROL
BLOCK
VOVLO
CC2_O
21.0V
DC MAX
GND
www.maximintegrated.com
EN_TST
Maxim Integrated │ 9
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
Detailed Description
The MAX20323 family has two channel switches that are
turned on when inputs are below overvoltage threshold. When
overvoltage threshold is exceeded on one of the channels, the
corresponding switch is turned off and replaced by an accurate
pullup current to output (CC1_O/CC2_O) that is sourced from
input (CC1_I/CC2_I), except MAX20323A/F.
The MAX20323 family (except MAX20323F) provide the
RD with a clamp when no power is available at VENCC
and automatically disable RD when there is power available
at VENCC.
Switches
The MAX20323 family features 270mΩ typ on-resistance
back-to-back switches between CC inputs and CC outputs.
Each switch is turned on when the correspondent CC
input is below overvoltage threshold.
Overvoltage Lockout
When CC1_I/CC2_I is below overvoltage threshold
(VOVLO_R), the correspondent switch to CC1_O/CC2_O
is enabled. When CC1_I/CC2_I goes above overvoltage
threshold, the correspondent switch to CC1_O/CC2_O is
disabled.
During an overvoltage condition, a pullup current sourced from CC1_I/CC2_I to CC1_O/CC2_O is
enabled. The MAX20323/MAX20323C/MAX20323D have
180µA pullup current. The MAX20323B/MAX20323E
have 80µA pullup current. The MAX20323A/F do
not have a pullup current feature. An accurate pullup current is applied when the voltage on CC1_O/
CC2_O is below 3V. Output voltage clamp (5.75V typ)
is also enabled during the overvoltage condition (except
in MAX20323A/F). It is capable of drawing the entire
pullup current to avoid the output voltage exceeds
absolute maximum rating in case the pin is left open.
Input Voltage Clamp
When VENCC is below power on reset threshold, the
clamp resistors RD on CC1_I and CC2_I are enabled.
The MAX20323F does not have the input voltage clamp
feature.
www.maximintegrated.com
USB Type-C CC-Pin
Overvoltage Protector
The clamp voltage is as follow:
1) Input clamp voltage < 2.18V, when:
a. Pullup current 356.4µA (330µA + 8%)
b. 5.5V pullup voltage and 9.5kΩ (10kΩ - 5%)
pullup resistor
c. 3.465V (3.3V + 5%) pullup voltage and 4.465kΩ
(4.7kΩ - 5%) pullup resistor
2) Input clamp voltage < 1.6V, pullup current 200µA
When input voltage goes above 2.18V, the RD is 5.1kΩ
(typ) equivalent resistance.
When VENCC is above power on reset threshold, the
clamp resistors RD are disabled.
Thermal Shutdown
Thermal shutdown circuitry protects the devices from
overheating. The switches turn off when the junction
temperature exceeds +135°C (typ). The switches turn
on again after the device temperature drops by
approximately 20°C (typ).
Application Information
Surge Protection
The MAX20323/MAX20323A/MAX20323B have DC
tolerance up to 13.5V and surge protection up to ±90V.
The MAX20323C/MAX20323E/MAX20323F have DC tolerance up to 21.0V and surge protection up to ±90V. The
MAX20323D has DC tolerance up to 21.0V and surge
protection up to ±80V without VENCC and up to ±60V with
valid VENCC.
Extended ESD
ESD protection structures are incorporated on all pins
to protect against electrostatic discharges up to ±2kV
(Human Body Model) encountered during handling and
assembly. CC1_I, CC2_I are further protected against
ESD up to ±20kV (Human Body Model), ±15kV (Air Gap
Discharge method described in IEC 61000-4-2), and ±8kV
(Contact Discharge method described in IEC61000-4-2)
without damage.
The ESD structures withstand high ESD both in normal
operation and when the device is powered down. After an
ESD event, the MAX20323 family continues to function
without latchup.
Maxim Integrated │ 10
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
ESD Test Condition
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents test
setup, test methodology, and test results.
Human Body Model
Figure 1 shows the Human Body Model. Figure 2 shows
the current waveform it generates when discharged into a
low impedance. This model consists of a 100pF capacitor
charged to the ESD voltage of interest that is then
discharged into the device through a 1.5kΩ resistor.
RC
1MΩ
CHARGE-CURRENTLIMIT RESISTOR
HIGHVOLTAGE
DC
SOURCE
CS
100pF
USB Type-C CC-Pin
Overvoltage Protector
IEC 61000-4-2
The IEC 61000-4-2 standard covers ESD testing and
performance of finished equipment. However, it does not
specifically refer to integrated circuits. The major difference
between tests done using the Human Body Model and
IEC 61000-4-2 is higher peak current in IEC 61000-4-2
because series resistance is lower in the IEC 61000-4-2
model. Hence, the ESD withstand voltage measured to
IEC 61000-4-2 is generally lower than that measured
using the Human Body Model. Figure 3 shows the IEC
61000-4-2 model, and Figure 4 shows the current waveform for the IEC 61000-4-2 ESD Contact Discharge test.
RC
50MΩ TO 100MΩ
RD
1.5kΩ
DISCHARGE
RESISTANCE
CHARGE-CURRENTLIMIT RESISTOR
DEVICE
UNDER
TEST
STORAGE
CAPACITOR
Figure 1. Human Body ESD Test Model
HIGHVOLTAGE
DC
SOURCE
CS
150pF
RD
330Ω
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
DEVICE
UNDER
TEST
Figure 3. IEC 61000-4-2 ESD Test Model
IPEAK (AMPS)
IP 100%
90%
Ir
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
100%
90%
AMPERES
36.8%
10%
0
0
tRL
10%
TIME
tDL
CURRENT WAVEFORM
Figure 2. Human Body Current Waveform
www.maximintegrated.com
tR = 0.7ns
TO 1ns
t
30ns
60ns
Figure 4. IEC 61000-4-2 ESD Generator Current Waveform
Maxim Integrated │ 11
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Ordering Information/Selector Guide
DC CC INPUT
ABSMAX (V)
PULLUP
CURRENT (µA)
TOP MARK
TEMP RANGE
PINPACKAGE
MAX20323ENC+T
13.5
180
AAD
-40°C to +85°C
12 WLP
MAX20323AENC+T*
13.5
―
AAE
-40°C to +85°C
12 WLP
MAX20323BENC+T*
13.5
80
AAF
-40°C to +85°C
12 WLP
MAX20323CENC+T
21.0
180
AAG
-40°C to +85°C
12 WLP
MAX20323DENC+T
21.0
180
AAH
-40°C to +85°C
12 WLP
MAX20323EENC+T*
21.0
80
AAI
-40°C to +85°C
12 WLP
MAX20323FENC+T
21.0
―
AAJ
-40°C to +85°C
12 WLP
PART
+Denotes lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*Future product–Contact Maxim for availability.
Chip Information
PROCESS: BiCMOS
www.maximintegrated.com
Maxim Integrated │ 12
MAX20323/MAX20323A/
MAX20323B/MAX20323C/
MAX20323D/MAX20323E/MAX20323F
USB Type-C CC-Pin
Overvoltage Protector
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
0
6/17
Initial release
1
11/17
Updated surge voltage and modified pullup current level of MAX20323A/C
2
7/18
Updated Benefits and Features, Absolute Maximum Ratings, Functional Diagrams,
Application Information, and Ordering Information/Selector Guide
1, 2, 7–9, 11
1/19
Updated the General Description, Benefits and Features, Electrical Characteristics,
Detailed Description, and Surge Protection sections; Updated TOC02, Functional
Diagram for MAX20323C/MAX20323D/MAX20323E, and removed future product
designation from MAX20323CENC+T
1, 3–4, 8
10, 12
3
—
1, 2, 6, 7, 9, 11
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2019 Maxim Integrated Products, Inc. │ 13
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