s
60mA/120mA MIN GATE DRIVE
s
TWO POINT REGULATOR FOR
SWITCHING CHARGE PUMP SUPPLY
s
3.3V OR 5V VOLTAGE REGULATOR
s
LOW STARTUP CURRENT
s
UVLO PROTECTION
s
2kV ESD PROTECTION
DESCRIPTION
TD220 is a solution for micro-controller based off-
line applications. TD220 includes a two point
regulator for power supply generation, a 3.3V
(TD220) or 5V (TD221) linear regulator for the
microcontroller supply, and a MOSFET driver.
APPLICATIONS
s
C-BASED OFF-LINE APPLICATIONS
ORDER CODE
Note: D = Small Outline Package (SO) - also available in Tape &
Reel (DT)
Package Reference
PIN CONNECTIONS (top view)
Part Number
Temperature
Range
Package
D
TD220I
-25, +125C
TD221I
-25, +125C
D
SO8
(Plastic
MicroPackage)
VCC
GND
VSUP
VCAP
GATE
IN
NC
VOUT
7
1
2
6
4
3
5
8
TD220/221
Gate Driver with VReg and Two Point Regulator
DATASHEET
Revision B
1/8
May 2003
TD220/221
Block Diagram
2/8
1 BLOCK DIAGRAM
Pin Description
Name
Pin Number
Type
Function
VCC
1
Power supply
Supply capacitor and startup resistor
VOUT
2
Analog output
+3.3V (TD220) or +5V (TD221) voltage regulator
IN
4
Digital input
Input signal for gate drive
GATE
5
Analog output
Gate drive output
GND
6
Power supply
Signal ground
VSUP
7
Power supply
Charge pump input
VCAP
8
Power supply
Capacitor for charge pump
GND
IN
VOUT
VCC
GATE
VCAP
VSUP
NC
D1
D2
D3
Q1
22V
Vreg
UVLO
TPR
13V
75k
Absolute Maximum Rating
TD220/221
3/8
2 ABSOLUTE MAXIMUM RATING
OPERATING CONDITIONS
Typical waveform of current in VSUP pin
Symbol
Parameter
Value
Unit
VCC
DC Supply Voltage (Icc<5mA)
-0.3 to selflimit
V
Vout
Voltage on GATE and VCAP pins
-0.3 to VCC+0.3
V
Vin
Voltage on IN and VOUT pins
-0.3 to 7
V
Isup
Continuous current in VSUP pin
-200 to 200
mA
Ipeak
Peak current in VSUP pin (tp
1
s, f
150kHz, see waveform below)
-1.0 to 1.0
A
Pd
Power dissipation
500
mW
Tstg
Storage temperature
-55 to 150
C
Tj
Maximum Junction Temperature
150
C
Rhja
Thermal Resistance Junction-Ambient
150
C/W
Rhjc
Thermal Resistance Junction-Case
40
C/W
ESD
Electrostatic discharge (HBM)
2
kV
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
UVLO to 17
V
Isup
Continuous current in VSUP pin
0 to 200
mA
Ipeak
Peak current in VSUP pin (tp
1
s, f
150kHz, see waveform below)
-1.0 to 1.0
A
Tj
Junction Temperature
-25 to 125
C
Ipeak
tp
10mA
TD220/221
Electrical Characteristics
4/8
3 ELECTRICAL
CHARACTERISTICS
Tamb = 25C, VCC=13V unless otherwise specified
Symbol
Parameter
Test Condition
Min
Typ
Max
Unit
Supply
Icc
Supply current
no load at any pin, Vin<1V
Tamb=25C
-25C<Tj<125C
0.7
1.0
1.2
mA
mA
Icc2
1nF GATE load,
300kHz IN signal
4
5
6
mA
Istby
Standby current
UVLO active
Tamb=25C
-25C<Tj<125C
160
230
A
A
Vclamp
Clamp voltage
Icc<5mA
20
22
24
V
Input
Vton
IN Turn-on Threshold Voltage
1.8
2.1
V
Vtoff
IN Turn-off Threshold Voltage
1.0
1.3
V
Vh
IN Hysteresis
0.5
V
Iinpl
IN Input current low
Vin<0.5V
20
A
Iinph
IN Input current high
Vin=3.3V
100
A
Voltage regulator
Vout
Voltage reference
Iout=10mA
TD220
TD221
3.20
4.85
3.30
5
3.40
5.15
V
V
RegLoad
Load Regulation
Iout change from 10mA
to 25mA
50
mV
Ipeak
Peak output current
Vout=1V
100
mA
dVout
Temperature coefficent
Iout=10mA
250
ppm/C
Cout
Allowed capacitive load - Note 1
Iout=10mA
0.1
1
F
Ileak
Leakage current in UVLO state
Vout=1V
10
A
Vrip
Ripple rejection - Note 1
f=100Hz
f=10kHz
40
20
dB
dB
Vnoise
Noise voltage
100Hz<f<100kHz
1
mV
tstartup
Startup time (Vout>3.1V)
Cout=1
F
0.1
ms
tsettle
Settling time (1% final value)
Cout=1
F
2
ms
Two Point Regulator (TPR)
VTPROn
Turn-on level
13.6
V
VTPROff
Turn-off level
12.4
V
VTPRH
Hysteresis
=VTPROn-VTPROff
0.23
0.29
0.35
V
VF
Forward voltage D1
IF=200mA
1.5
V
Electrical Characteristics
TD220/221
5/8
Gate Output
VOL
Output low voltage
Igate=10mA
0.5
V
VOH
Output high voltage
Igate=-10mA
VCC-2.0
V
Isink
Output sink current
Vgate=6V
Tj=25C
-25C < Tj < 125C
120
300
mA
mA
Isrc
Output source current
Vgate=3V
Tj=25C
-25C < Tj < 125C
60
150
mA
mA
VOL2
Output low voltage in UVLO state
Vcc=6V, Igate=1mA
2
V
tgmin
Minimum output pulse width
1
Cgate=10pF
80
ns
tpd
IN to GATE propagation delay
200
ns
Under Voltage Lockout (UVLO)
UVLOH
UVLO top threshold
15
V
UVLOL
UVLO bottom threshold
7.8
8.7
V
Vhyst
UVLO Hysteresis
Vhyst=UVLOH-UVLOL
5
V
1) Not 100% tested. Guaranteed by design.
Symbol
Parameter
Test Condition
Min
Typ
Max
Unit
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