DATA SHEET
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Current Limit Switch, with
OVP and TRCB, 28 V / 5 A
Rated
WLCSP24 2.6x1.67x0.612
CASE 567TQ
FPF2895C
PIN CONFIGURATION
Description
The FPF2895C features a 28 V and 5 A rated current limit power
switch, which offers Over−Current Protection (OCP), Over−Voltage
Protection (OVP), and True Reverse Current Block (TRCB) to protect
system. It has low On−resistance of typical 27 mW with WL−CSP can
operate over an input voltage range of 4 V to 22 V.
The FPF2895C supports ±10% of current limit accuracy,
over-current range of 500 mA to 2 A and ±5% of current limit
accuracy, over−current range of 2 A to 5 A , flexible operations such as
selectable OVP, selectable ON polarity and selectable OCP behavior,
which can be optimized according to system requirements.
The FPF2895C is available in a 24−bump, 1.67 mm x 2.60 mm
Wafer−Level Chip−Scale Package (WLCSP) with 0.4 mm pitch.
Features
• 28 V / 5 A Capability
• Wide Input Voltage Range: 4 V ~ 22 V
• Ultra Low On−Resistance
•
•
•
•
•
•
•
•
•
Typ. 27 mW at 5 V and 25 °C
Adjustable Current Limit with external RSET
♦ 500 mA ~ 5 A
Selectable OVLO with OV1 and OV2 Logic Input
♦ 5.95 V ± 50 mV
♦ 10 V ± 100 mV
♦ 16.8 V ± 300 mV
♦ 23 V ± 460 mV
Selectable ON Polarity
Selectable Over-Current Behavior
♦ Auto−Restart Mode
♦ Current Source Mode
True Reverse Current Block
Thermal Shutdown
Open Drain Fault FLAGB Output
UL60950−1 & IEC 60950−1 Certification 5 A Max Loading
Robust ESD Capability
♦ 2 kV HBM & 1 kV CDM
♦ 15 kV Air Discharge & 8 kV Contact Discharge under IEC
61000−4−2
♦
1
2
3
4
A
NC
ON
FLAGB
POL
B
GND
OC_M
ODE
OV1
GND
C
ISET
VOUT
VIN
OV2
D
VOUT
VOUT
VIN
VIN
E
VOUT
VOUT
VIN
VIN
F
VOUT
VOUT
VIN
VIN
ORDERING INFORMATION
See detailed ordering and shipping information on page 10 of
this data sheet.
Applications
• Laptop, Desktop Computing and Monitor
• Power Accessories
© Semiconductor Components Industries, LLC, 2006
October, 2021 − Rev. 5
1
Publication Order Number:
FPF2895C/D
FPF2895C
Application Diagram
Power
Source
Periphrals
VOUT
VIN
CIN
COUT
FPF 2895C
GPIO
ON
NC
POL
VIO
OC _MODE
MCU
FLAGB
ISET
OV 1
RSET
OV 2
GND
Figure 1. Typical Application
Block Diagram
VIN
VOUT
OVLO
UVLO
ON
POL
POL
SEL
Control Logic w/
Charge Pump
Current
Limit
ISET
NC
OC _MODE
OV 1
OV 2
FPF 2895C
OVP
SEL
FLAGB
Thermal
Shutdown
GND
Figure 2. Functional Block Diagram
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2
FPF2895C
PIN CONFIGURATION
1
2
3
4
A
NC
ON
FLAGB
POL
B
GND
OC_M
ODE
OV1
C
ISET
VOUT
D
VOUT
E
F
4
3
2
1
POL
FLAGB
ON
NC
A
GND
GND
OV1
OC_M
ODE
GND
B
VIN
OV2
OV2
VIN
VOUT
ISET
C
VOUT
VIN
VIN
VIN
VIN
VOUT
VOUT
D
VOUT
VOUT
VIN
VIN
VIN
VIN
VOUT
VOUT
E
VOUT
VOUT
VIN
VIN
VIN
VIN
VOUT
VOUT
F
Pin Configuration (Top View)
Pin Configuration (Bottom View)
Figure 3. 24 Ball WL_CSP, 4 x 6 Array, 0.4 mm Pitch, 250 mm Ball
Table 1. PIN DEFINITIONS
Name
Bump
Type
Description
VIN
C3, D3, D4, E3, E4, F3, F4
Input/Supply
VOUT
C2, D1, D2, E1, E2, F1, F2
Output
Switch Input and Device Supply
Switch Output to Load
NC
A1
Dummy
Recommended to connect to GND
ON
A2
Input
Internal pull−down resistor of 1 MW is included. Active
polarity is depending on POL state (Note 1)
POL
A4
Input
Enable Polarity Selection. Internal pull/up of 1 MW is included. HIGH (or Floating): Active LOW
LOW: Active HIGH (Note 1)
FLAGB
A3
Output
Active LOW, open drain output indicates an over−current,
under−voltage, over−voltage, or over−temperature state.
ISET
C1
Input
A resistor from ISET to ground set the current limit for the
switch. See below selection Table 6.
OC_MODE
B2
Input
OCP behavior can be selected. Internal pull−up of 1 MW is
included.
HIGH (or Floating): Auto−restart mode during over−current
condition.
LOW: Current source mode during over−current condition.
(Note 1)
OV1
B3
Input
Over−Voltage Selection Input 1. Internal pull−up of 1 MW is
included and see below selection Table 7. (Note 1)
OV2
C4
Input
Over−Voltage Selection Input 2. Internal pull−up of 1 MW is
included and see Table 7 (Note 1)
GND
B1, B4
GND
Device Ground
1. To avoid external noise influence when floating, recommend to connect these pins to a certain level.
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3
FPF2895C
Table 2. ABSOLUTE MAXIMUM RATINGS
Symbol
VIN, VOUT
Parameter
Min.
Max.
Unit
VIN, VOUT to GND
−0.3
28.0
V
VPIN
ON, POL, OC_MODE, ISET, FLAGB and OVn to GND
−0.3
6.0
V
ISW
Continuous Switch Current
−
5.5
A
tPD
Total Power Dissipation at TA = 25°C
TSTG
Storage Junction Temperature
−
2.08
W
−65
+150
°C
TJ
Operating Junction Temperature
−
+150
°C
TL
Lead Temperature (Soldering, 10 Seconds)
−
+260
°C
−
60 (Note 2)
°C/W
Human Body Model,
ANSI/ESDA/JEDEC JS−001
2
−
Charged Device Model,
JESD22−C101
1
−
Air Discharge
15
−
Contact Discharge
8
−
qJA
Thermal Resistance, Junction−to−Ambient
ESD
Electrostatic Discharge Capability
(1in.2
pad of 2 oz. copper)
IEC61000−4−2 System Level
kV
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
2. Measured using 2S2P JEDEC std. PCB.
Table 3. RECOMMENDED OPERATING CONDITIONS
Symbol
VIN
CIN / COUT
TA
Parameter
Supply Voltage
Min.
Max.
Unit
4.0
22.0
V
Input and Output Capacitance
1.0
−
mF
Ambient Operating Temperature
−40
+85
°C
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
Table 4. ELECTRICAL CHARACTERISTICS (Unless otherwise noted, VIN = 4 to 22 V, TA = −40 to 85°C; typical values are at
VIN = 5 V, CIN = COUT = 1 mF, ON = HIGH, POL = OV1 = OV2 = OC_MODE = GND and TA = 25°C.)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
BASIC OPERATION
VIN
Input Voltage (Note 4)
ISD_IN
VIN Shutdown Current
VON = OFF, VIN = 5.5 V,
VOUT = Short to GND
Quiescent Current
IOUT = 0 mA, VON = ON
IQ
RON
On Resistance
TA = 25_C, IOUT = 1 A
4
−
22
V
−
75
100
mA
VIN = 5 V
−
270
330
mA
VIN = 12 V
−
300
400
VIN = 20 V
−
350
450
VIN = 5 V
−
27
39
VIN = 12 V
−
27
39
VIN = 20 V
−
27
39
−
−
10
mA
mW
ION
ON Input Leakage
VON = VIN or GND
VIH
Logic Pin Input
(ON, POL, OV1, OV2, OC_MODE) High
Voltage
VIN = 3 V ∼ 23 V
1.2
−
−
V
VIL
Logic Pin Input
(ON, POL, OV1, OV2, OC_MODE) Low
Voltage
VIN = 3 V ∼ 23 V
−
−
0.4
V
FLAGB Output Logic Low Voltage
VIN = 5 V, ISINK = 5 mA
−
0.1
0.2
V
FLAGB Output High, Leakage Current
VIN = 5 V, Switch ON
−
−
1
mA
VP_LOW
ILKG
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4
FPF2895C
Table 4. ELECTRICAL CHARACTERISTICS (Unless otherwise noted, VIN = 4 to 22 V, TA = −40 to 85°C; typical values are at
VIN = 5 V, CIN = COUT = 1 mF, ON = HIGH, POL = OV1 = OV2 = OC_MODE = GND and TA = 25°C.)
PROTECTIONS
ILIM
Current Limit (Note 3)
VIN = 5 V, VOUT = 4 V, RSET = 3.01 kW,
TA = −40 to 85_C
1.35
1.50
1.65
VIN = 5 V, VOUT = 4 V, RSET = 1.54 kW,
TA = −40 to 85_C
2.85
3.00
3.15
A
VFOLD
ILIM Foldback Trip Voltage (Note 3)
VOUT under ILIM Mode
−
2
−
V
IFOLD
ILIM Foldback Current (Note 3)
VIN = 5 V, VOUT < VFOLD, TA = 25_C,
OC_MODE = HIGH
−
500
−
mA
VIN = 5 V, VOUT < VFOLD, TA = 25_C,
OC_MODE = LOW
−
250
−
mA
VIN Increasing
−
2.70
2.95
V
VIN Decreasing
−
2.5
−
−
200
−
mV
VINRising
22.20
23.00
23.46
V
VINFalling
22.00
−
−
VINRising
9.80
10.00
10.10
VUVLO
Under−Voltage Lockout
UVLO Hysteresis
VOVLO
Over−Voltage Lockout (Note 3)
OV1 = LOW, OV2 = LOW
OV1 = LOW, OV2 = HIGH
OV1 = HIGH, OV2 = LOW
OV1 = HIGH, OV2 = HIGH
TOVP
VINFalling
9.75
−
−
VINRising
16.30
16.80
17.10
VINFalling
16.10
−
−
VINRising
5.85
5.95
6.00
VINFalling
5.80
−
−
OVP Response Time (Note 3)
RL = 100 W, CL = 0 mF, VIN > VOVLO to
VOUT = 0.9 × VIN
−
−
150
ns
VT_RCB
TRCB Protection Trip Point
VOUT − VIN
−
25
40
mV
VR_RCB
TRCB Protection, Release Point
VIN − VOUT
−
25
40
mV
tRCB
TRCB Response Time (Note 3)
VIN = 5 V, VON = HIGH/LOW
−
5
−
ms
TRCB Release Time (Note 3)
VIN = 5 V, Enabled
−
1
−
ms
Over Current Response Time (Note 3)
VIN = 5 V, Moderate OC
−
20
−
ms
tRCB_Release
tOC
ISD_OUT
TSD
VIN = 5 V, Hard Short
−
5
−
VOUT Shutdown Current
VON = OFF, VOUT = 5 V, VIN = Short to GND
−
−
2
mA
Thermal Shutdown (Note 3)
Shutdown Threshold
−
150
−
_C
Hysteresis
−
20
−
DYNAMIC BEHAVIOR
tDON
Delay On Time
RL = 100 W CL = 1 mF
−
1
−
ms
tR
VOUT Rise Time
RL = 100 W CL = 1 mF
−
1
−
ms
tON
Turn−On Time
RL = 100 W CL = 1 mF
−
2
−
ms
tDOFF
Delay Off Time
RL = 100 W CL = 1 mF
−
10
−
ms
tF
VOUT Fall Time
RL = 100 W CL = 1 mF
−
200
−
ms
tOFF
Turn−Off Time
RL = 100 W CL = 1 mF
−
210
−
ms
tBLANK
Over−Current Blanking Time (Note 3)
OC_MODE = HIGH
−
5
−
ms
tRSTRT
Auto−Restart Time (Note 3)
OC_MODE = HIGH
−
200
−
ms
tQUAL
Over−Current Qualification Time (Note 3)
OC_MODE = LOW
−
5
−
ms
tDEB
FLAGB De−bounce Time (Note 3)
Restart−up during or after OC
−
3
−
ms
Restart−up during or after Thermal
shutdown
−
15
−
Restart−up during or after UVLO
−
1
−
3. Guaranteed by characterization and design, not production test.
4. To avoid output voltage is coupled to high during cold start, the slew rate of Vin should be less than 10 mV/ms
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5
FPF2895C
Setting Current Limit
FPF2895C current limit is set with an external resistor
connected between ISET and GND. This resistor is selected
using the following equation:
RSET (kW) = 4448.6/Ilim [mA]
Resistor tolerance of 1% or less is recommended.
Table 5. ILIM VS. RSET LOOK−UP TABLE
ILIM [mA]
RSET [kW]
Min.
Typ.
Max.
8.89
450
500
550
7.41
540
600
660
6.35
630
700
770
5.56
720
800
880
4.94
810
900
990
4.45
900
1000
1100
4.04
990
1100
1210
3.71
1080
1200
1320
3.42
1170
1300
1430
3.18
1260
1400
1540
2.96
1350
1500
1650
2.78
1440
1600
1760
2.62
1530
1700
1870
2.47
1620
1800
1980
2.34
1710
1900
2090
2.22
1800
2000
2200
2.12
1890
2100
2310
2.02
1980
2200
2420
1.93
2070
2300
2530
1.85
2160
2400
2640
1.78
2250
2500
2750
1.71
2340
2600
2860
1.65
2430
2700
2970
1.59
2520
2800
3080
1.53
2610
2900
3190
1.48
2700
3000
3300
1.43
2790
3100
3410
1.39
2880
3200
3520
1.35
2970
3300
3630
1.31
3060
3400
3740
1.27
3150
3500
3850
1.24
3240
3600
3960
1.20
3330
3700
4070
1.17
3420
3800
4180
1.14
3510
3900
4290
1.11
3600
4000
4400
1.08
3690
4100
4510
1.06
3780
4200
4620
1.03
3870
4300
4730
1.01
3960
4400
4840
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FPF2895C
Table 5. ILIM VS. RSET LOOK−UP TABLE
ILIM [mA]
RSET [kW]
Min.
Typ.
Max.
0.99 (Note 5)
4050
4500
4950
0.97
4140
4600
5060
0.95
4230
4700
5170
0.93
4320
4800
5280
0.91
4410
4900
5390
0.89
4500
5000
5500
5. Passed UL&CB certification with max. 5 A output current.
Table 6. OVLO LEVEL SELECTION
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
OV1
OV2
OVLO
LOW
LOW
23 V ± 460 mV
LOW
HIGH (Floating)
10 V ± 100 mV
HIGH (Floating)
LOW
16.3 ± V 300 mV
HIGH (Floating)
HIGH (Floating)
5.95 ± V 50 mV
Table 7. DEVICE ENABLE POLARITY SELECTION
POL
ON
Device State
LOW
LOW (Floating)
OFF
LOW
HIGH
ON
HIGH (Floating)
LOW (Floating)
ON
HIGH (Floating)
HIGH
OFF
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7
ON Polarity
Active HIGH
Active LOW
FPF2895C
TIMING DIAGRAMS
5V
90%
90%
VOUT
10%
10%
t DOFF
tR
tF
tDON
ON
50%
50%
Figure 4. Normal ON/OFF Operation by ON (POL = GND)
VOVLO
VIN
t OVP
Measure @
OVLO_Rising to
VOUT = 90% VIN
tR
VOUT
tDON
tDON
ON
VIO
FLAGB
Figure 5. OVLO Operation (POL = GND & FLAGB is Pulled Up With an External VIO)
Figure 6. Current Limit Operation (OC_MODE=HIGH & FLAGB is Pulled Up With an External VIO)
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FPF2895C
tOC
VIN
ILIM
IOUT
tQUAL
VOUT
tDEB
VIO
FLAGB
OC Event
Figure 7. Current Limit Operation (OC_MODE = LOW & FLAGB Is Pulled Up With an External VIO)
VIN
IOUT
t RCB
0A
Peak reverse current
developing V T_RCB with Ron
VR _RCB to release TRCB
> VIN
VOUT
= VIN
VIN −VF
= VIN
tRCB _RELEASE
Internal
FETs
ON
ON
OFF
Figure 8. TRCB Operation (Device is Enabled)
VOUT
Load current above 6A within 1us,
FPF2895 will turn off immediately
IOUT
IFOLD
0
t BLANK
FLAGB
t RSTRT
t DON
t QUAL
Figure 9. VOUT Hard Short to GND (OC_MODE=HIGH & FLAGB Is Pulled Up With an External VIO)
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FPF2895C
PRODUCT−SPECIFIC DIMENSIONS
D
E
X
Y
2600 mm ± 30 mm
1670 mm ± 30 mm
235 mm ± 18 mm
300 mm ± 18 mm
ORDERING INFORMATION
Part Number
Operating Temperature Range
Top Mark
Package
Shipping†
FPF2895CUCX
−40_C − +85_C
3G
24−Ball, 0.4 mm Pitch WLCSP
Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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10
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
WLCSP24 2.6x1.67x0.612
CASE 567TQ
ISSUE O
DOCUMENT NUMBER:
DESCRIPTION:
98AON13331G
WLCSP24 2.6x1.67x0.612
DATE 31 MAR 2017
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
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